ГИДРОИЗОЛЯЦИОННАЯ И ГЕРМЕТИЗИРУЮЩЕ-КЛЕЯЩАЯ КОМПОЗИЦИЯ

Изобретение относится к химической промышленности, в частности к невысыхающим композициям, применяемым для производства гидроизоляционных и герметизирующе-клеящих покрытий, композиция может применяться для изоляции стыков, швов, примыканий, приклейки рулонных кровельных материалов и гидроизоляции фундаментов и трубопроводов. Описывается композиция для гидроизоляционного и герметизирующе-клеящего покрытия, включающая полимер, битум, минеральный наполнитель, пластификатор и модифицирующие добавки, содержит в качестве полимера синтетические неспецифицированные (отходы производства) бутадиен-стирольные каучуки марок СКС, в качестве битума - битум БН-IV, в качестве пластификатора - отходы индустриальных масел, в качестве минерального наполнителя - мел и дополнительно модифицирующие добавки - канифоль и смолу 101 К (алкилфеноло-формальдегидная смола) при следующем соотношении компонентов, мас. %: синтетические неспецифированные бутадиен-стирольные каучуки марок СКС - отходы производства 23,5- ...

Способ склеивания фторопластовой стеклоткани с поверхностью изделия

Изобретение может быть использовано для тепловой, звуковой и химической изоляции промышленного оборудования, трубопроводов и строительных конструкций. Способ склеивания фторопластовой стеклоткани с поверхностью изделий включает очистку склеиваемых поверхностей, нанесение клеевого слоя по меньшей мере на одну из указанных поверхностей и приведение указанных поверхностей в контакт. В качестве клея используют сольвентный контакт-клей на основе раствора бутадиен-стирольного каучука в дихлорметане. Технический результат заключается в обеспечении прочного клеевого соединения фторопластовой стеклоткани с поверхностью при исключении стадии активации поверхности фторопластового слоя. 7 з.п. ф-лы, 3 пр.

НИЗКОТЕМПЕРАТУРНЫЕ КЛЕИ-РАСПЛАВЫ ДЛЯ ИЗДЕЛИЙ ОДНОРАЗОВОГО ИСПОЛЬЗОВАНИЯ С ВЫСОКИМ СОПРОТИВЛЕНИЕМ ПОЛЗУЧЕСТИ

... 1. Клей-расплав низкотемпературного применения, включающий:(a) по меньшей мере, один блок-сополимер стирола с индексом текучести расплава, больше чем 33, измеренный в соответствии со стандартом ASTM D 1238, и содержанием стирола больше чем 40%;(b) воск, при котором клей имеет вязкость приблизительно менее чем 8500 сантипуаз при 120°C.2. Клей-расплав низкотемпературного применения по п. 1, включающий:(a) от 5 до 20 мас.% блок-сополимера стирола;(b) от 0,5 до 5% мас.% воска;(c) 30-70 мас.% вещества, повышающего клейкость; и(d) 0,1-2 мас.% антиоксиданта.3. Клей-расплав низкотемпературного применения по п. 1, в котором клей имеет кроссовер температуру больше 60°C.4. Клей-расплав низкотемпературного применения по п. 3, у которого кроссовер температура, измеренная как точка, где tgd=1, составляет больше чем 65°C.5. Клей-расплав низкотемпературного применения по п. 1, у которого предел текучести составляет больше чем 50 пси.6. Клей-расплав низкотемпературного применения по п. 5, у которого предел ...

Способ получения клеевого материала

Изобретение относится к получению клеящих веществ, используемых в машиностроении для неразрушающего контроля металлоконструкции методом трафии при креплении фотокассет к исследуемым объектам. Изобретение позволяет упростить процесс крепления фотокассет, повысить надежность J -графии за счет использования в способе получения клеевой композиции , включающей в качестве наполнителя окись алюминия, в качестве ор- ,панического растворителя бензин и этилацетат, которой пропитывают хлопчатобумажную ткань и сушат до удаления растворителя. Клеевая кЪмпозиция содержит, масД: сополимер бутадиена со стиролом 10-15, глицериновый эфир канифоли 20-30, окись алюминия t 3-10, бензин 30-40, бутилацетат - ос- , тальное. 1 табл.

Способ крепления резины к текстильным материалам, к резинам и текстильных материалов между собой

DRUCKEMPFINDLICHES KLEBEMITTEL UND KLEBEVERSCHLUSS FÜR WEGWERFWINDELN

DRUCKEMPFINDLICHES KLEBEMITTEL UND KLEBEVERSCHLUSS FÜR WEGWERFWINDELN

Klebstoffe auf Basis anionisch polymerisierter Styrol/Butadien-Copolymerisate

DRUCKEMPFINDLICHE KLEBSTOFFZUSAMMENSETZUNG

Haftklebemasse, diese enthaltende Selbstklebeprodukte und Verbunde

Die Erfindung betrifft eine Blockcopolymerhaltige Haftklebemasse enthaltend e) 52 Gew.-% bis 65 Gew.-%, bevorzugt 55 Gew.-% bis 62 Gew.-% einer Elastomerkomponente, f) 30 Gew.-% bis 45 Gew.-%, bevorzugt 35 Gew.-% bis 42 Gew.-% zumindest eines Klebharzes, g) 0 Gew.-% bis 15 Gew.-%, bevorzugt bis 10 Gew.-% zumindest eines Weichharze und h) 0 Gew.-% bis 18 Gew.-%, bevorzugt bis 10 Gew.-% an weiteren Additiven, wobei die Elastomerkomponente (a) zu mindestens 90 Gew.-% aus Polyvinylaromat-Polybutadien-Blockcopolymeren besteht, wobei die Polyvinylaromat-Polybutadien-Blockcopolymeren zumindest eine Sorte eines Diblockcopolymers (a1) und zumindest eine Sorte eines Tri- oder Multiblockcopolymers (a2) umfassen, das zumindest eine Diblockcopolymer (a1) einen Vinylaromatenanteil von 15 Gew.-% bis 45 Gew.-% aufweist, innerhalb der Elastomerkomponente (a) der Anteil an Tri- oder Multiblockcopolymer (a2) zwischen 25 Gew.-% und 50 Gew.-%, bevorzugt zwischen 30 Gew.-% und 45 Gew.-% beträgt, das Tri- oder ...

Flame-retardant pressure sensitive adhesives and tapes

A pressure sensitive adhesive composition suitable for making tapes contains a non-halogen intumescent flame retardant. The pressure sensitive adhesive compositions may be based on adhesives including rubber based compositions, acrylic adhesive compositions and adhesive foams. Suitable flame retardants include non-halogen phosphorus/nitrogen flame retardants and a further flame retardant e.g. a halogenated retardant may also be added. The adhesive foam may comprise hollow glass or polymeric microbubbles or may be made by frothing an adhesive.

Microencapsulated adhesive compositions and methods of making same

A microencapsulated adhesive is produced from a solvent-based adhesive composition such as a styrene butadiene rubber composition or an acrylic. The solvent-based adhesive composition may be encapsulated by interfacial polymerization, gelatin/gum arabic coacervation or melamine/formaldehyde encapsulation. The solvent is removed from the microcapsules by heating or reduced pressure to form an adhesive that is non-tacky, but becomes tacky upon application of external forces, such as shearing. The microencapsulated adhesive composition may be used, among other applications, as an adhesive for stamps or envelopes.

SEALING STRIP WITH FABRIC REINFORCEMENT

... 1356563 Pressure-sensitive adhesive coated fabric EVODE Ltd 2 Aug 1971 [27 Aug 1970] 41285/70 Heading B2E A pressure-sensitive adhesive laminate comprises a layer of a pressure-sensitive adhesive composition coated onto a backing sheet comprising a self-bonded, non-woven polyamide fabric. The latter may be formed by heat fusion of a mat of nylon strands at their crossover points. The adhesive layer is preferably thicker than the polyamide fabric, and is preferably a bituminous composition, containing a thermoplastic polymer or a natural or synthetic rubber. Other constituents of the adhesive include flux oil, petroleum resins and fillers, e.g. SiO 2 . The adhesive may be applied to the fabric so that little impregnation occurs or alternatively it may partially or fully impregnate the fabric such that it strikes through onto the outer surface. A hopper may be used to deliver the adhesive between fabric and release paper, a calender machine situated downstream serving to spread the adhesive ...

MULTIPURPOSE ADHESIVE

LITTLE COLORED HYDROCARBON OIL RESINS WITH LOW SOFTENING POINT AND PRESSURE-SENSITIVE ADHESIVES, THESE RESINS CONTAINING.

PROCEDURE FOR THE PRODUCTION OF VINYLAROMAT COPOLYMER REDISPERGIERBAREN IN WATER REDISPERSIONSPULVERN

Hot melt adhesive compositions

Hot-melt-coatable adhesives

Packing list manifest

BLOCK COPOLYMER BLEND ADHESIVES WITH MULTIPLE TACKIFIERS

Pressure sensitive adhesives comprising a linear block copolymer having a rubbery block and at least one glassy block; a multi-arm block copolymer having at least three arms, each having both a rubbery block and a glassy block; a first high glass transition temperature tackifier compatible with the rubbery blocks; a second high glass transition temperature tackifier having compatible with the glassy blocks; and at least one of a low Tg tackifier, a plasticizer, and combinations thereof, are disclosed. Tapes that include such adhesive, methods of making such tapes, and bonded composites using such adhesives and tapes are also disclosed.

FARNESENE-BASED TACKIFYING RESINS AND ADHESIVE COMPOSITION CONTAINING THE SAME

A tackifying resin includes a farnesene-based polymer having monomeric units derived from a farnesene monomer and one or more optional comonomers selected from the group consisting of dienes, branched mono-olefins, and vinyl aromatics and has a softening point greater than or equal to 80 degrees Celsius. A method of making the farnesene-based polymer includes combining a farnesene monomer and a solvent and optionally adding one or more comonomers selected from the group consisting of dienes, branched mono-olefins, and vinyl aromatics, to provide a monomer feed, and polymerizing the monomer feed by combining the monomer feed with a Friedel-Crafts catalyst in a vessel. The tackifying resin may be combined with an elastomer to form a hot melt adhesive composition.

ADHESIVE COMPOSITION FOR SELF-ADHESIVE LABEL AND ITEM COMPRISING THIS

La présente invention concerne une composition adhésive thermofusible sensible à la pression convenant au collage d'étiquettes auto-adhésives à collage permanent sur tout type de support de surface lisse ou rugueuse, un article comprenant ladite composition adhésive, ainsi que le procédé de préparation dudit article.

LOW TEMPERATURE HOT MELT ADHESIVES FOR DISPOSABLE ARTICLES WITH HIGH CREEP RESISTANCE

The present invention is directed to adhesives suitable for application using a hot melt process at a relatively low temperature in the range of about 110 °C to about 130 °C. Such adhesives exhibit desirable viscoelastic properties and are suitable for bonding an elastic attachment in the manufacture of disposable articles, such as disposable diapers.

NON-SAGGING BITUMINOUS ADHESIVE AND WATERPROOFING MEMBRANES CONTAINING SAME

Pressure sensitive bituminous adhesives are provided which comprise bitumen, oil, an elastomer, and silica. These adhesives are particularly useful as self adherent waterproofing layers, particularly in roofing applications. The presence of silica increases the sag resistance of the adhesives, preventing adhesive from flowing or dripping from the waterproofing layer at the relatively high temperatures encountered in roofing applications. Also provided are waterproofing membranes comprising the inventive adhesive compositions.

Adhesive, and preparation method thereof

White glue for carpets

Modified phenolic resole resin composition, method for producing same, and adhesive

Thermal expansion banded adhesive special for automobiles and preparation method thereof

The invention provides thermal expansion banded adhesive special for automobiles and a preparation method thereof. The thermal expansion banded adhesive for the automobiles is prepared from synthetic rubber, plasticizer, softening agent, adhesive force promoting resin, vulcanizing agent, accelerant, active agent, anti-ageing agent, foaming agent, reinforcing agent and calcium carbonate. The thermal expansion banded adhesive for the automobiles can be used for vibration absorption between metal plates or between metal plates and supporting beams in the automobile manufacturing process. The adhesive can be directly operated by hand in use, has no toxicity or smell, is not sticky, has good manufacturability, does not shift, and is convenient to use. The banded adhesive has good adherence with an oil surface metal material, and is filled among a door, an engine cover outer plate, a reinforcing rib and a skeleton, between a reinforcing plate and an outer plate and between rear wheel coversto ...

Thermoplastic polymer composition and molded article

Self-adhesive surface protective film

ADHESIVE MIXTURES CONTAINING POLYOLEFINS MODIFIEES

THERMOFUSIBLE ADHESIVES INTENDED FOR MANUFACTURE D ADHESIVE SENSITIVE TO THE PRESSURE

Colles thermofusibles, destinées à la fabrication d'adhésifs sensibles à la pression, à base de caoutchouc thermoplastique, comprenant de 5 à 40 % en poids de caoutchouc thermoplastique, de 20 à 80 % en poids de résine dite tackifiante, de 0 à 30 % en poids de résine aromatique, de 0,05 à 30 % en poids de plastifiant caractérisées par une teneur de 1 à 15 % de polymère EPM ou EPDM.

PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET USING THE SAME

PURPOSE: Provided is a pressure-sensitive adhesive composition, which gives an adhesive tape showing good removability, good unwindability in the absence of any release agents, good unwindability and removability over a long time. CONSTITUTION: The pressure-sensitive adhesive composition comprises: (1) 100 parts by weight of at least one block copolymer selected from the group consisting of block copolymers represented by the formula of A-B-A and block copolymers represented by the formula of A-B, wherein A is a styrene polymer block and B is a butadiene polymer block, an isoprene polymer block, or a polymer block obtained by hydrogenating a butadiene polymer block or an isoprene block; (2) 10-200 parts by weight of a tackifying resin; and (3) 25-200 parts by weight of a polyolefin having a melt index of about 0.1-30 g/10 min and containing products capable of being extracted with n-pentane in an amount less than 1.0 wt%, the polyolefin being selected from the group consisting of LDPE, ...

Adhesive film

SELF-ADHESIVE SURFACE-PROTECTION FILM

Provided is a self-adhesive surface-protection film which exhibits excellent film processability, with which an end of an adhesive film can be easily grasped and peeled off when peeling the adhesive film from an optical member punched by a die, and with which problems such as partial elongation and deformation of the film do not readily occur even when the adhesive film is stored in a rolled state, and subsequently withdrawn. This self-adhesive surface-protection film is characterized by being obtained by using co-extrusion to stack an adhesive layer on one surface of a base material layer comprising a polypropylene-based resin, and a release layer on the opposite surface of the base material layer. The self-adhesive surface-protection film is further characterized in that: the adhesive film is bonded to an adherend; the peeling strength of an end punched by a chisel is not more than 60 cN/25mm; and the adhesive surface has a peeling force with respect to the release surface of not more ...

MODIFIED PHENOLIC RESOLE RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND ADHESIVE

The present invention provides a modified phenolic resole resin composition including a modified phenolic resole resin that has structural units A, which are represented by general formula (1) and are modified using a dimethylphenol, and structural units B, which are represented by general formula (2). (In formula (1), m is an integer of 1 or greater. When m is 1, R is a methylol group. When m is 2 or greater, R independently are a hydrogen atom or methylol group, and at least one R is a methylol group) (In formula (2), n is an integer of 1 or greater. When n is 1, R is a methylol group. When n is 2 or greater, R independently are a hydrogen atom or methylol group, and at least one R is a methylol group).

HOTMELT PRESSURE SENSITIVE ADHESIVE FOR CLEAR ON CLEAR LABELS

A hotmelt pressure sensitive adhesive comprising a low diblock grade SIS as base polymer, low viscosity and molecular weight hydrogenated cycloaliphatic hydrocarbon resin as tackifier, high viscosity and molecular weight paraffin oil with high molecular weight as plasticizer, and polyethylene wax. The adhesive can achieve performance characteristics that include clear on clear labeling for beverage bottles, transparency, water-whitening resistance, repositionability within the first 4 to 8 hours after label application, low swelling for film facestock, low viscosity for processibility of compounding and coating, low odor, and light color.

Flooring adhesives based on styrene-butadiene copolymers

An aqueous composition containing from 1 to 60% by weight of a polymer A) built up froma) from 10 to 50% by weight of a vinylaromatic having up to 20 carbon atoms,b) from 45 to 75% by weight of a nonaromatic hydrocarbon having two conjugated double bonds,c) from 0 to 20% by weight of a water-soluble monomer having a water solubility of at least 100 g per liter of water under standard conditions (21° C. and 1 bar), the water-soluble monomer containing no acid group or acid anhydride group,d) from 0.1 to 4.5% by weight of a monomer containing at least one acid group or acid anhydride group,e) from 0 to 30% by weight of a monomer other than a) to d), andfrom 40 to 99% by weight of a filler B), the weight data for A) and B) being based on the sum of A) and B).

BINDER COMPOSITION AND PAINT FORMULATION MADE THEREOF

Floor adhesives based on styrene-butadiene copolymers

An oil resistant rubber modified polystyrene composition comprises polybutadiene rubber particles having an average volume particle diameter of 6 to 13 µm dispersed in polystyrene. The oil resistant rubber modified polystyrene of the present invention has a gel content of 25 to 35% by weight, a degree of swelling of 13 to 22, a residual volatile content of 2000 ppm or less, and a total amount of dimer and trimer of 8000 ppm or less. The oil resistant rubber modified polystyrene composition may be prepared by polymerizing styrene in the presence of polybutadiene rubber, foaming a solution of the rubber modified polystyrene under a reduced pressure of 3 to 40 mm Hg, heating the solution in a tubular heater to a temperature of 190 to 230°C, and then flushing the heated solution into a gas-liquid separator to devolatilize an unreacted monomer and a solvent therefrom.

An adhesive resin composition and the use thereof and laminate comprising this composition as adhesive layer

STYRENE-BUTADIENE RUBBER ADHESIVE COMPOSITION

PROBLEM TO BE SOLVED: To provide an adhesive composition composed of a styrene-butadiene copolymer rubber and an organic solvent and capable of bonding an olefinic thermoplastic elastomer to a resin adherend with high adhesive strength. SOLUTION: The adhesive composition is produced by compounding 100 pts. wt. of a styrene-butadiene copolymer rubber with 70-300 pts. wt. of a halogen-free organic solvent and 10-80 pts. wt. of at least one kind of a halogen-containing organic solvent selected from trichloroethylene and methylene chloride. COPYRIGHT: (C)2004,JPO ...

ADHESIVE COMPOSITION AND ADHESIVE PRODUCT USING THE SAME

PROBLEM TO BE SOLVED: To provide an adhesive composition which does not cause an environmental problem and can exhibit good adhesive strength and holding characteristics within a wide temperature range from an ultra-low temperature to a high temperature. SOLUTION: The adhesive composition comprises a random copolymer comprising isobutylene and paramethylstyrene, wherein the random copolymer contains 1-20 wt.% of the paramethylstyrene and has a crosslinked structure, and a tackifier. COPYRIGHT: (C)2011,JPO&INPIT ...

SELF-ADHESIVE TAPE

PROBLEM TO BE SOLVED: To provide a novel self-adhesive tape which shows a sufficient self-adhesive force, a sufficient strength and a moderate stretch, can be easily released at disposal, does not produce any harmful substance at combustion and does not cause any problem concerning its cuttability when used for binding things. SOLUTION: The self-adhesive tape contains an elastomer comprising a hydrogenated product of a styrene butadiene rubber and has a thickness of 40-400 μm. The self-adhesive tape comprises 100 pts.wt. elastomer comprising the hydrogenated product of the styrene butadiene rubber and 0-30 pts.wt. thermoplastic resin or elastomer component other than the elastomer. COPYRIGHT: (C)2006,JPO&NCIPI ...

ADHESIVE FOR FRUIT PAPER

PURPOSE: To obtain a room temperature-gluing adhesive excellent in adhesiveness to fruit paper by mixing a natural rubber latex/styrene copolymer latex mixture with an alkali-soluble resin, rosin, an organic solvent and a plasticizer. CONSTITUTION: An adhesive for fruit paper is obtained by mixing a natural rubber latex/styrene copolymer (e.g. styrene/butadiene copolymer) latex mixture with an alkali-soluble resin (e.g. casein), rosin, an organic solvent (e.g. toluene or n-hexane) and a plasticizer (e.g. diethyl phthalate or glycerol). Although the above adhesive is an aqueous emulsion-type adhesive freed from defects of a solvent-based adhesive, it can show excellent adhesiveness to fruit paper, is capable of room temperature gluing and excels in workability. COPYRIGHT: (C)1991,JPO&Japio ...

HEISSSCHMELZKLEBSTOFFZUSAMMENSETZUNGEN

Vorgeformter einteiliger Verbundstoff zur Bewehrung und zum Unterdrücken der Rollneigung einer bituminösen Dachbahn

SOLVENT-FREE SOFTENER-RESISTANT ELECTRICAL VOLUME ON PVC BASIS

ADHESIVE FILM FOR STEEL SHEET

HOT FUSION STICKING COMPOSITION.

THERMOPLASTIC FLEXIBLE ADHESIVE.

HOT MELT ADHESIVE COMPRISING POLYISOPRENE AND POLYTERPENE RESIN AND POLY (AKYLOXAZOLINE) AND ANTIOXIDANT

ADHESIVE BLENDS

COMPOSITION FOR SEALING CONTAINED STERILIZED FOODS

ADHESION OF RUBBER TO ARAMID CORDS

ADDITIVE FOR CAUSTIC REMOVABLE HOT MELT ADHESIVES AND FORMULATIONS CONTAINING THE SAME

An additive composition for imparting caustic removability to a hot melt adhesive includes an ester functionalized polymer having a polymeric backbone and, pendent thereon, one or more dicarboxylic acid moieties in at least partial ester form. The polymeric backbone has a weight average molecular weight less than 50,000. The ester functionalized polymer may be, for example, an at least partial ester of a maleated hydrocarbon. The additive may further include a low molecular weight a,ß ethylenically unsaturated anhydride-containing or acid-containing polymer. A caustic removable hot melt adhesive composition comprises a hot melt adhesive additive and a conventional hot melt adhesive resin. A caustic removable adhesive label comprises a substrate and a caustic removable hot melt adhesive composition which includes an additive composition. The caustic removable hot melt adhesives can be used on labels for articles, such as glass bottles.

IMPROVED NOVEL PRESSURE-SENSITIVE ADHESIVE AND DEGRADABLE DIAPER CLOSURE SYSTEM

... 2109563 9304135 PCTABS00020 A pressure-sensitive adhesive and tape are provided having a rubber component (30-60 weight percent) of polyisoprene (4-55 weight percent) blended with a styrene-isoprene-styrene block copolymer (45-96 weight percent) and a tackifying component (70-40 weight percent) to provide an adhesive that exhibits superior adhesion performance to low surface energy substrates.

METHOD FOR PRODUCING MICROENCAPSULATED ADHESIVE AND ADHESIVE COMPOSITION RESULTING THEREFROM

A microencapsulated adhesive and a method for producing that microencapsulated adhesive are disclosed. The adhesive is produced from a solvent-based adhesive composition such as a styrene butadiene rubber composition or an acrylic. The solventbased adhesive composition may be encapsulated by interfacial polymerization, gelatin/gum arabic coacervation or melamine/ formaldehyde encapsulation. The solvent is removed from the microcapsules by heating or reduced pressure to form an adhesive that is non-tacky, but becomes tacky upon application of external forces, such as shearing. The microencapsulated adhesive composition may be used, among other applications, as an adhesive for stamps or envelopes.

Adhesive film composition and application thereof

A modified emulsified asphalt cement and its preparation method

Corrugated paper board adhesive

The invention discloses a corrugated paper board adhesive. The corrugated paper board adhesive is prepared from 3-5 parts by weight of diatomite, 2-9 parts by weight of methyl cellulose ether, 6-8 parts by weight of hydrophobic silica, 5-8 parts by weight of sulfated melamine, 2-7 parts by weight of vegetable glue, 4-6 parts by weight of polyurethane, 4-10 parts by weight of organosilicon epoxy resin, 3-6 parts by weight of styrene-butadiene rubber, 1-5 parts by weight of ferrocene, 4-8 parts by weight of nanometer pottery clay, 1-5 parts by weight of an antiager MB, 3-6 parts by mass of alumina silicate, 1-5 parts by weight of fumed silica, 8-11 parts by weight of chloroprene rubber and 4-8 parts by weight of disproportionated rosin. The corrugated paper board adhesive has good viscosity, can well adhere to a paper board and has good temperature adaptability.

Polymer alloy waterproof coiled material and production method thereof

The invention relates to a polymer alloy waterproof coiled material and a production method thereof. The coiled material comprises an alloy plate layer and a polymer material layer, which are integrated together. Two side surfaces of the alloy plate layer are both painted by an anti-oxidant material. At least one side of the waterproof coiled material is provided with a waterproof anticorrosion self-adhesive rubber layer, whose external side is covered by a silicone oil membrane. The waterproof anticorrosion self-adhesive rubber is composed of the following components in percentage by weight: 20 to 45% of thermoplastic butadiene styrene rubber, 10 to 35% of aromatic hydrocarbon oil, 3 to 25% of thermoplastic solid acrylic resin, 3 to 5% of antirust antiseptic, and 8 to 19% of talcum powder. The coiled material has the advantages of good waterproofness, good corrosion resistance, UV resistance, low temperature resistance, aging resistance, puncture resistance, and quickness for construction ...

High-temperature-resistant flame-retardant insulating tape

Environment-friendly halogen-free inflaming retarding adhesive tape and production process thereof

The invention relates to an adhesive tape for electronic products and a production process thereof, in particular to an environment-friendly halogen-free inflaming retarding adhesive tape and a production process thereof. The environment-friendly halogen-free inflaming retarding adhesive tape successively consists of a halogen-free inflaming retarding adhesive layer, a tissue paper layer, a halogen-free inflaming retarding adhesive layer and a double-silicon release paper layer from top to bottom. The halogen-free inflaming retarding glue comprises the following components by weight percent: 50-60% of a mixture of acrylate polymer, adhesive, tackifying resin and fire retardant, 20-30% of acetic ether and 15-20% of toluene. The adhesive tape is an environment-friendly halogen-free inflaming retarding adhesive tape and is mainly applied to winding and fixing in electronic products and adhesion of battery production materials and other inflaming retarding materials (i.e. Normex). The halogen-free ...

A matrix composite resin and its preparation method, the reinforcing film and its preparation method

Flame-retarding pressure-sensitive adhesive and preparation method thereof

PULVERULENT COMPOSITION REDISPERSABLE IN the FILM FORMING POLYMER WATER PREPARE FROM MONOMERS HAS ETHYLENE NON-SATURATION

IMPROVEMENT CONCERNING OF THE ADHESIVE COMPOSITIONS SENSITIVE TO THE PRESSURE

Film anticopie.

AQUEOUS ADHESIVE COMPOSITION COMPRISING A THERMOSETTING RESIN

La présente invention concerne une composition adhésive aqueuse, comportant une résine thermodurcissable à base : - d'au moins un composé aromatique porteur d'au moins deux fonctions, l'une de ces fonctions étant une fonction hydroxyméthyle, l'autre étant une fonction aldéhyde ou une fonction hydroxyméthyle, le composé aromatique comprend au moins un noyau aromatique ;d'au moins polyphénol aromatique comprenant au moins un noyau aromatique porteur d'au moins deux fonctions hydroxyle en position méta l'une par rapport à l'autre, les deux positions ortho d'au moins une des fonctions hydroxyle étant non substituées ; et/ou - d'au moins un monophénol aromatique comprenant au moins un noyau aromatique à six chainons portant une unique fonction hydroxyle, - les deux positions ortho de la fonction hydroxyle étant non substituées, ou - au moins une position ortho et la position para de la fonction hydroxyle étant non substituées. Une telle composition adhésive est notamment utilisable pour assembler ...

PULVERULENT COMPOSITION REDISPERSABLE IN the FILM FORMING POLYMER WATER PREPARE FROM MONOMERS HAS ETHYLENE NON-SATURATION

La présente invention a pour objet une composition pulvérulente redispersable dans l'eau, obtenue par mélange puis séchage d'une émulsion d'au moins un polymère filmogène insoluble dans l'eau, d'au moins un tensio-actif principal, d'au moins un composé hydrosoluble et comprenant: - une émulsion d'au moins un polymère filmogène insoluble dans l'eau et préparé à partir de monomères à insaturation éthylénique, - au moins un tensio-actif principal dont le diagramme de phases binaire eau - tensio-actif, comporte une phase isotrope fluide à 25 deg.C jusqu'à une concentration d'au moins 50% en poids de tensio-actif, suivie d'une phase cristal liquide rigide de type hexagonale ou cubique à des concentrations supérieures, stable au moins jusqu'à la température de séchage, - au moins un composé hydrosoluble. L'invention a de même pour objet un procédé de préparation d'une telle composition et son utilisation.

HIGH-ADHESIVE PROTECTION FILM WITH METALLOCENE

ADHESIVE COMPOSITION FOR WOOD MATERIAL EMPLOYING STYRENE-BUTADIENE LATEX AND ISOCYANATE COMPOUND

PURPOSE: Provided are an adhesive composition for a wood material which is free from an organic solvent and formaldehyde and is excellent in water fastness adhesion, and a method for integrating a patterned wood and a wood board by using the composition. CONSTITUTION: The adhesive composition comprises 100 parts by weight of a styrene-butadiene latex; 0.1-9 parts by weight of an isocyanate compound; and optionally 0.1-50 parts by weight of at least one additive selected from the group consisting of a wheat flour, starch and an extracted bean powder. Preferably the styrene-butadiene latex is a water-dispersible latex which comprises styrene and butadiene in a ratio of 0.6-2.0 by weight, has an average diameter of 50 nm to 50 micrometers, a solid content of 20-80 %, a specific gravity of 0.7-1.3, a viscosity of 50-1,000 cp and a gel content of 50 % or more, and contains a reactive functional group of sulfonate, carboxylic acid, alcohol and thiol. © KIPO 2006 ...

Styrene-Butadiene Copolymers, Process for the Preparation Thereof and High Cohesion Adhesive Compositions

Styrene-Butadiene Copolymers, Process for the Preparation Thereof and High Cohesion Adhesive Compositions

The present patent of invention application refers to styrene-butadiene copolymers (SBR) that are prepared using aqueous emulsion polymerization technology and are intended for the adhesive and sealing industry, being particularly useful in the preparation of contact adhesives and pressure-sensitive adhesives (PSA) and widely applicable in the footwear and furniture industries. The use of this kind of elastomer in processes for preparing adhesives, having an aqueous or solvent base, provides high cohesion to adhesive compositions without compromising ou jeopardizing the adhesion. The present invention is also intended to protect the process for obtaining SBR copolymers, simultaneously comprising: aqueous emulsion polymerization at high temperatures, the use of a specific surfactant and the maintenance of the Mooney viscosity and the combined styrene content in the copolymer in high ranges. Another object of the present invention application is the protection of adhesive compositions that ...

Chemical Resistant Tape for Detecting Acid and Base

Pressure-sensitive adhesive compositions for manufacturing electronic devices

The present disclosure relates to an electronic device comprising at least one organic light-emitting diode and a pressure sensitive adhesive composition comprising a synthetic rubber block (co)polymer, and wherein the pressure sensitive adhesive composition has: (a) a relative permittivity no greater than 2.50, when measured at an alternating current frequency of 100 kHz according to the test method described in the experimental section; (b) a water uptake no greater than 0.60 wt%, when measured after exposure to 60 DEG C and 95% relative humidity for 120 hours, according to the test method described in the experimental section; and (c) optionally, a peel adhesion value above 0.20 N/mm, when measured at 85 DEG C according to the test method described in the experimental section. In another aspect, the present disclosure is directed to a method of manufacturing an electronic device comprising at least one organic light-emitting diode, wherein the method comprises the step of using a pressure ...

Halogen-free flame-retardant tape and fabrication method thereof

The present invention provides a halogen-free flame-retardant tape and a fabrication method thereof comprising the following steps: coating a layer of epoxy natural gum on the surface of a substrate; and bonding a halogen-free natural gum on the surface of the epoxy natural gum of the substrate to complete the adhesion operation. The halogen-free natural gum mainly uses the halogen-free rubber along with phosphorous-based flame retardant, nitrogen-based flame retardant and inorganic flame retardant fillers to achieve the flame retardancy. In addition, a halogen-free cloth repellent containing aqueous silicone, polyurethane, flame retardant and bridging agent mixed at a proper ratio can be coated on the substrate surface without the adhesive to carry out surface repellent treatment. The halogen-free flame-retardant tape of the present invention is applicable to medical mattresses to prevent toxic gas produced by combustion and reduce the damage caused by halogen to the environment and human ...

Styrenic block copolymer based hot-melt adhesives, their use for disposable soft goods, and tackifying resing contained therein

Disclosed are hot-melt adhesive compositions suitable for the manufacture of soft goods. They have a melt viscosity of 60,000 mPa.s or less at a temperature of 120 DEG C and include: (a) 50 to 150 parts by weight of a styrenic block copolymer or mixtures and/or modified and/or hydrogenated derivatives thereof; (b) 20 to 450 parts by weight of a tackifying resin which, when incorporated into a reference composition, leads to the following properties: a tan delta value of 3.5 or less, wherein tan delta is defined as the ratio between the loss modulus and the storage modulus of said composition and an elastic retention on spandex fibers (300%) or natural latex rubber (200%) after 4 h at 40 DEG C of 70% or more; and a crossover temperature of 95 DEG C or less. Further disclosed are novel partially hydrogenated hydrocarbon resins which are useful as tackifying resins and have the following properties: (a) a ring and ball softening point (R&B) of 50 DEG C to 150 DEG C; (b) a mixed methylcyclohexane ...

COMPOSITION FOR PLASTIC AND ELASTIC TIGHTENING WITH THIXOTROPY BEHAVIOR AND PREPARATION PROCESS THEREFOR

ELECTRONIC TAG ADHESIVE AND ELECTRONIC TAG

The present invention pertains to an electronic tag adhesive and an electronic tag. The electronic tag adhesive includes a thermoplastic elastomer and fulfills conditions (1) and (2). (1) The dielectric constant of a layer obtained from the adhesive and measured at a frequency of 1 kHz is no more than 4. (2) The dielectric tangents for a layer obtained from the adhesive and measured at frequencies of 1 kHz, 10 kHz, 100 kHz, 1 MHz, and 10 GHz are no more than 0.10, respectively.

FLAME RETARDANT PRESSURE-SENSITIVE ADHESIVES AND TAPES

Une composition d'adhésifs autocollants contenant un adhésif choisi parmi des compositions à base de caoutchouc, des compositions adhésives acryliques, des mousses adhésives ou équivalent, ainsi qu'un retardateur de flamme comporte au moins un retardateur de flamme intumescent non halogéné, mais peut utiliser en association des additifs retardateurs de flamme intumescents non halogénés et des additifs retardateurs de flamme halogénés.

LAYERED FILM

The present invention pertains to a layered film that provides uniform adhesive force with respect to adherend having varying surface profiles, that can be used for a wide variety of uses, and that exhibits excellent adherend dependency. This layered film has a substrate and a resin layer A disposed at least on one-surface side of the substrate, and fulfills the conditions (a), (b) and (c). (a) The resin layer A side has a probe tack maximum value F of 0.2-2.5 g/mm2 at 23°C. (b) When said layered film is subjected to a load removal test by means of nano-indentation at a maximum load of 1 mN at 26°C, the ratio of residual displacement hp (in units of μm) to maximum displacement hm (in units of μm) at the resin layer A side is 0.50-0.90. (c) The resin layer A has a melting point Tm in a range of at least 50°C.

Synthetic raw elastomeric compositions in free-flowing pellet form and process for obtaining the same

A raw elastomeric composition in free-flowing pellet form is described, which comprises a raw elastomer with molecular weight from 50,000 to 400,000 Da, and an anti-block agent comprising inorganic fillers, capable of forming emulsions in water. Likewise, a process for obtaining said raw elastomeric compositions in free-flowing pellet form, comprising the steps of: a) polymerizing at least one monomer through solution polymerization in order to obtain elastomer crumb; b) forming an aqueous suspension of the elastomer crumbs; c) dewatering the aqueous suspension; d) adding an anti-block agent comprising inorganic fillers capable of forming emulsions in water; e) drying the dewatered suspension; and f) pelletizing the elastomer to form a raw elastomeric composition in free-flowing pellets form. The raw elastomeric composition in free-flowing pellets form thus obtained can be used as an adhesive composition, in asphalt modification and in asphalt emulsions.

Adhesive blends of elastomer, polyolefin, and graft of polyethylene with unsaturated fused ring anhydrides

Compositions of matter having among other desirable characteristics strong adhesive properties to various substrates, these compositions comprising blends of a graft copolymer of a high density polyethylene and at least one unsaturated fused ring carboxylic acid anhydride blended with a polyethylene resin of one or more hompolymers of ethylene, copolymers of ethylene and alpha-olefin, ethylene-ester copolymers and one or more elastomers such as homopolymers of isobutylene, copolymers of isobutylene with isoprene, chlorinated copolymers of isobutylene and isoprene, homopolymers of isoprene, copolymers of butadiene and styrene, block copolymers of dienes and styrene where the diene is butadiene or isoprene, homopolymers of butadiene, homopolymers of chloroprene, and copolymers of acrylonitrile and butadiene.

Heat-resistant dicing tape or sheet

The present invention relates to a heat-resistant dicing tape or sheet, which includes a substrate having a glass transition temperature of 70°C or higher; and at least one pressure-sensitive adhesive layer disposed on at least one side of the substrate, the pressure-sensitive adhesive layer having a degree of weight loss upon heating of less than 2% when the pressure-sensitive adhesive layer is heated from room temperature to 200°C at a rate of temperature increase of 2°C/min, in which the pressure-sensitive adhesive layer has an adhesive force (peel rate: 300 mm/min; peel angle: 180°) of 0.5 N/20 mm or lower when the heat-resistant dicing tape or sheet is applied to a silicon mirror wafer, is subsequently heated at 200°C for 30 seconds, and is then cooled to 23°C.

硬化性接着剤組成物

EMULSION COMPOSITION FOR ADHESIVE

PURPOSE: To obtain an emulsion composition for adhesive for the production of a white-backing carpet having satisfactory feeling as well as tackiness, by adding a specific amount of a lubricant to a latex of styrene-butadiene polymer, etc. CONSTITUTION: The objective emulsion composition can be produced by compounding (A) a latex selected from styrene-butadiene latex, acrylic latex and vinyl acetate latex with (B) 0.1W30pts.wt. (based on 100pts.wt. of the solid component of the latex A) of a lubricant (preferably phosphoric acid ester of cetyl alcohol, stearyl alcohol or oleyl alcohol, polyethylene, palmitic acid, stearic acid or oleic acid, their calcium salt, zinc slat, etc.). COPYRIGHT: (C)1988,JPO&Japio ...

PRODUCTION OF REDISPERSED POWDER OF VINYLAROMATIC COMPOUND COPOLYMER REDISPERSIBLE INTO WATER AND USE OF THE FORMED PRODUCT OBTAINED BY THE PRODUCTION

PROBLEM TO BE SOLVED: To provide a method for producing redispersible powder which comprises a vinyl aromatic compound copolymer as a base, is stabilized with an emulsifying agent and contains no protective colloid, capable of providing redispersible powder having adhesion and storage stability free from an aggregate, redispersible without adding a protective colloid as a spray auxiliary. SOLUTION: A comonomer mixture comprising (a) one or more kinds of vinylaromatic compound comonomers, (b) one or more kinds of 1,3-diene comonomers (b1) or one or more kinds of comonomers (b2) from a group of acrylic acid or methacrylic acid 1-8C alkyl ester group and (c) 0.1-10 mass % based on the whole mass of the comonomer mixture of one or more kinds of comonomers from the group of an ethylene-based unsaturated monocarboxylic acid or dicarboxylic acid or its anhydride, an ethylene-based unsaturated carboxylic acid amide, an ethylene-based unsaturated sulfonic acid compound and their salt is subjected ...

VULCANIZATION-BONDED BODY BETWEEN CHLOROPRENE RUBBER COMPOSITION AND METAL

PROBLEM TO BE SOLVED: To provide outstanding vulcanization-adhesive properties, low dynamic magnification and superb damping characteristics by adding a chloroprene rubber, NBR and/or hydrogenated NBR. SOLUTION: NBR and/or hydrogenated NBR are added to a chloroprene rubber. The chloroprene rubber is a vulcanization-bonded body of one or two kinds selected from a xanthogen-modified chloroprene rubber, a mercaptan- modified chloroprene rubber and a sulfur-modified chloroprene rubber. A monomer which can be copolymerized with chloroprene is a 2,3-dichloro-1,3-butadiene, a 1-chloro-1,3-butadine, sulfur, styrene or the like. The loadings of NBR and/or hydrogenated NBR are preferably 1-25 pts.wt. to the total 100 pts.wt. of the chloroprene rubber, NBR and/or hydrogenated NBR, considering the balance between vulcanization adhesive properties and damping performance. The metal to be used is stainless steel, zinc, copper, brass, aluminum or the like in addition to steel and iron and further, an ...

アニオン重合によって合成された機能性ポリマーを含む機能性多分岐ポリマー、及びその使用

НИЗКОТЕМПЕРАТУРНЫЕ КЛЕИ-РАСПЛАВЫ ДЛЯ ИЗДЕЛИЙ ОДНОРАЗОВОГО ИСПОЛЬЗОВАНИЯ С ВЫСОКИМ СОПРОТИВЛЕНИЕМ ПОЛЗУЧЕСТИ

Изобретение относится к клеям, подходящим для применения с использованием способа горячего расплава при относительно низкой температуре приблизительно в пределах 110°С до приблизительно 130°С. Такие клеи показывают желаемые вязкоупругие свойства и являются подходящими для создания эластичного крепления в производстве одноразовых изделий, таких как одноразовые подгузники. 3 н. и 6 з.п. ф-лы, 4 табл., 2 пр.

ТЕРМОПЛАВКИЙ КЛЕЙ

Настоящее изобретение относится к термоплавкому клею, а также к изделию одноразового использования его содержащему. Термоплавкий клей содержит гидрированный термопластичный блок-сополимер, полученный в результате блок-сополимеризации ароматического углеводорода на винильной основе и сопряженного диенового соединения, модифицированный аминогруппой или группой малеиновой кислоты, смолу на основе алифатического сложного полиэфира и смолу, придающую клейкость. Смола на основе алифатического сложного полиэфира содержит по меньшей мере один полимер, выбираемый из смолы на основе полимолочной кислоты, поли(бутиленсукцината) и полигидроксибутирата. Полученный термоплавкий клей является экологически безопасным, а также характеризуется достаточными способностью склеивать при надавливании, адгезией, теплостойкостью и тому подобным и может быть использован в сфере изделий одноразового использования. 2 н. и 2 з.п. ф-лы, 4 табл., 26 пр.

КЛЕЕВАЯ КОМПОЗИЦИЯ

Изобретение относится к клеям на основе стирол-бутадиен-стирольных каучуков и предназначено для склеивания пеноматериалов, синтепона, кокосового волокна, войлока, декоративных облицовочных материалов - ткани, кожи между собой, а также для их приклеивания к твердым основаниям при производстве мягкой мебели. Клеевая композиция включает, мас. %: стирол-бутадиен-стирольный каучук Kraton 1102 -11,7-18,0, глеводородную алифатическую смолу UCRP 100 - 5,1-11,9, ароматическую смолу Hikotack P-90 - 13,6-23,7, гексановый растворитель остальное. Изобретение позволяет улучшить эксплуатационные характеристики клеевой композиции за счет повышения адгезионной и когезионной прочности, а также теплостойкости клеевого шва. 2 табл.

Способ получения клеев и клеевых прослоек для склеивания резин из разных каучуков

HOT-MELT ADHESIVE COMPOSITION INTENDED TO FORM A FILM SUITABLE FOR WRAPPING A HOT-MELT ADHESIVE PRODUCT, AND ITS USE

A hot-melt adhesive composition intended to form a film: 2. Composition according to claim 1 , such that it has an intersection point of the moduli of elasticity and viscosity by rheological scanning test at a temperature of 150 to 10° C. at 10° C./min and at the constant oscillation frequency of 10 rad/s claim 1 , comprised within a range from 70 to 100° C.3. Composition according to claim 1 , such that it has moreover a DSC enthalpy of fusion comprised within the range from 40 to 100 J/g.4. Composition according to claim 1 , such that constituent a) has a weight-average molecular weight Mcomprised between 5 kDa and 500 kDa (determined by gel permeation chromatography—GPC—with polystyrene standard) claim 1 , and preferably a styrenes content of the styrene block copolymer generally comprised within a range from 10 to 50% claim 1 , preferably from 10 to 33%.5. Composition according to claim 1 , such that constituent a) is a mixture of diblock copolymers and triblock copolymers having the same elastomeric block B claim 1 , the content of diblock copolymers in the mixture of styrene block copolymers being comprised within a range from 0 to 80% claim 1 , preferably from 0 to 40% by weight.6. Composition according to claim 1 , such that constituent a) is a SEBS type copolymer.7. Composition according to claim 6 , such that constituent a) contains moreover from 0 to 15% claim 6 , preferably from 0 to 10% claim 6 , of at least one SBC copolymer from a category other than SEBS copolymer.8. Composition according to claim 1 , such that the tackifying resin is chosen from the group formed by the tackifying resins belonging to the following category i) or ii) and/or from the group of tackifying resins belonging to the following category iii):{'sub': 5', '9', '9', '5', '5, 'i) hydrocarbon resins with Cunits; DCPD (dicyclopentadiene) hydrogenated resins; Cmodified DCPD hydrogenated resins; C-modified hydrocarbon resins with Cunits; hydrogenated resins with Cunits;'}ii) Terpene ...

PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET

The present invention provides a pressure-sensitive adhesive composition and a pressure-sensitive adhesive sheet comprising a layer formed from the said composition. The pressure-sensitive adhesive composition comprises, as a base polymer, a block copolymer of a mono-vinyl-substituted aromatic compound and a conjugated diene compound. The pressure-sensitive adhesive composition further comprises a tackifier resin (T) having a hydroxyl value of 80 mgKOH/g or higher. 1. A pressure-sensitive adhesive composition comprising:a base polymer consisting of a block copolymer of a mono-vinyl-substituted aromatic compound and a conjugated diene compound, and{'sub': 'H', 'a tackifier resin (T) having a hydroxyl value of 80 mgKOH/g or higher.'}2. The pressure-sensitive adhesive composition according to claim 1 , comprising claim 1 , as the tackifier resin (T) claim 1 , a high softening point resin having a softening point of 120° C. or above.3. The pressure-sensitive adhesive composition according to claim 1 , comprising a terpene-phenol resin as the tackifier resin (T).4. The pressure-sensitive adhesive composition according to claim 1 , further comprising a tackifier resin (T) having a hydroxyl value lower than 80 mgKOH/g.5. The pressure-sensitive adhesive composition according to claim 4 , comprising claim 4 , as the tackifier resin (T) claim 4 , at least one of a petroleum resin and a terpene resin.6. The pressure-sensitive adhesive composition according to claim 4 , comprising claim 4 , as the tackifier resin (T) claim 4 , a low softening point resin having a softening point below 120° C.7. The pressure-sensitive adhesive composition according to claim 4 , comprising claim 4 , as the tackifier resin (T) claim 4 , a high softening point resin having a softening point of 120° C. or above.8. The pressure-sensitive adhesive composition according to claim 1 , wherein the base polymer consists of at least one of a styrene-isoprene block copolymer and a styrene-butadiene block ...

PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET

The present invention provides a pressure-sensitive adhesive composition comprising a base polymer and a tackifier resin. The base polymer is a block copolymer of a mono-vinyl-substituted aromatic compound and a conjugated diene compound. The tackifier resin comprises a low softening point resin having a softening point below 120° C. and a high softening point resin having a softening point of 120° C. or above. The high softening point resin comprises a terpene-phenol resin. 1. A pressure-sensitive adhesive composition comprising a base polymer and a tackifier resin , whereinthe base polymer is a block copolymer of a mono-vinyl-substituted aromatic compound and a conjugated diene compound,the tackifier resin comprises a low softening point resin having a softening point below 120° C. and a high softening point resin having a softening point of 120° C. or above, with the high softening point resin comprises a terpene-phenol resin.2. The pressure-sensitive adhesive composition according to claim 1 , wherein the base polymer has a diblock fraction of 50% by mass or larger.3. The pressure-sensitive adhesive composition according to claim 1 , wherein the base polymer is a styrene-based block copolymer.4. The pressure-sensitive adhesive composition according to claim 1 , wherein the high softening point resin comprises a terpene-phenol resin having a hydroxyl value of 80 mgKOH/g or higher.5. The pressure-sensitive adhesive composition according to claim 1 , comprising the high softening point resin in an amount of 20 to 100 parts by mass relative to 100 parts by mass of the base polymer.6. The pressure-sensitive adhesive composition according to claim 1 , wherein the low softening point resin comprises at least one of a petroleum resin and a terpene resin.7. The pressure-sensitive adhesive composition according to claim 1 , comprising claim 1 , as the tackifier resin claim 1 , a terpene-phenol resin A and a terpene-phenol resin B claim 1 , wherein the terpene-phenol resin ...

DRY ADHESIVES

A dry adhesive comprising a micro-featured and nano-featured surface, and a compliant surface having a hardness of about 60 Shore A or less, the micro-featured and nano-featured surface and the compliant surface being capable of forming upon contact a dry adhesive bond with each other. 115-. (canceled)16. A laminating film for laminating a micro-featured and nano-featured surface , the laminating film having a compliant surface having a hardness of about 60 Shore A or less , the compliant surface being capable of forming upon contact a dry adhesive bond with the micro-featured and nano-featured surface.17. The laminating film of claim 16 , wherein the compliant surface is a surface of a compliant layer located on a base layer.18. The laminating film of claim 16 , wherein the compliant surface comprises spots of a compliant material deposited on a base layer.19. The laminating film of claim 16 , wherein the compliant surface comprises a polymer.20. The laminating film of claim 16 , wherein the micro-featured and nano-featured surface is a paper surface.21. The laminating film of claim 20 , wherein the paper surface is a surface of an inkjet photo paper.22. The laminating film of claim 19 , wherein the polymer comprised in the compliant surface is a thermoplastic elastomer or a crosslinked elastomer.23. The laminating film of claim 22 , wherein the polymer comprised in the compliant surface is a silicon elastomer claim 22 , a silicon rubber claim 22 , a styrene-isoprene elastomer claim 22 , a styrene-butadiene elastomer claim 22 , a styrene-ethylene/butylene-styrene elastomer claim 22 , a styrene-ethylene/propylene-styrene elastomer claim 22 , an ethylene-butadiene-styrene elastomer claim 22 , a siloxane polymer claim 22 , or a poly-isocyanate.24. The laminating film of claim 16 , wherein the compliant surface has a hardness of about 55 Shore A or less.25. The laminating film of claim 24 , wherein the compliant surface has a hardness of about 50 Shore A or less.26. ...

Adhesive composition, film adhesive, and bonding method

An adhesive composition including an elastomer as a main component, an adhesive layer prepared from the adhesive composition having (i) a storage modulus (G′) of not less than 20,000 Pa at 220° C. and/or (ii) a loss modulus (G″) of not less than 20,000 Pa at 220° C.

WAFER PROCESSING TEMPORARY BONDING ARRANGEMENT, WAFER PROCESSING LAMINATE, AND THIN WAFER MANUFACTURING METHOD

A temporary bonding arrangement for wafer processing is provided comprising a first temporary bond layer (A) of thermoplastic resin, a second temporary bond layer (B) of thermosetting siloxane polymer, and a third temporary bond layer (C) of thermosetting polymer. Layer (B) is cured with a curing catalyst contained in layer (A) which is laid contiguous to layer (B). An adhesive layer of uniform thickness is formed without insufficient step coverage and other failures. 1. An arrangement for temporarily bonding a wafer to a support for wafer processing , the wafer having a circuit-forming front surface and a back surface to be processed ,said temporary bonding arrangement being a composite temporary adhesive layer comprising a first temporary bond layer (A) of thermoplastic resin, a second temporary bond layer (B) of thermosetting siloxane polymer which is laid contiguous to the first temporary bond layer, and a third temporary bond layer (C) of thermosetting polymer which is laid contiguous to the second temporary bond layer,wherein the first temporary bond layer (A) is a resin layer of a composition comprising (A-1) 100 parts by weight of a thermoplastic resin and (A-2) an amount of a curing catalyst to provide more than 0 part to 1 part by weight of an active ingredient per 100 parts by weight of component (A-1), and the thermosetting siloxane polymer layer (B) is cured with the aid of the curing catalyst in the layer (A) which is contiguous to the layer (B).2. The temporary bonding arrangement of wherein the wafer is a substrate having steps of 10 to 80 μm high on its surface.3. The temporary bonding arrangement of wherein component (A-2) is a platinum-based catalyst.4. The temporary bonding arrangement of wherein the second temporary bond layer (B) is a polymer layer of a composition comprising (B-1) 100 parts by weight of an organopolysiloxane having an alkenyl group in the molecule and (B-2) an organohydrogenpolysiloxane having at least two silicon-bonded ...

REMOVABLE PRESSURE SENSITIVE ADHESIVE COMPOSITIONS

This invention relates to styrene-isoprene-styrene block copolymer based on hot melt adhesive compositions. The adhesive compositions are useful for making removable pressure sensitive adhesives. The adhesives have a peel value of no greater than 4 lbs/in. Additionally, the tack value can be equal to or greater than the peel value. The compositions use a minimal amount of liquid plasticizer and/or tackifying resin. Additionally, the adhesives have workable viscosity despite a high loading of polymer. 1. A removable hot melt pressure sensitive adhesive comprising:at least one styrene-isoprene-styrene block copolymer being greater than 25% and no more than 50% by weight of the adhesive and having a diblock content of less than or equal to 45%;at least one tackifying resin being from 5% to 50% by weight of the adhesive;at least one liquid plasticizer being from 0% to 45% by weight of the adhesive of; anda stabilizer;wherein a 180° initial peel value to stainless steel of the adhesive is no greater than 4.0 pounds per linear inch.2. The adhesive of claim 1 , wherein the block copolymer is greater than 40% and no more than 50% by weight of the adhesive.3. The adhesive of claim 1 , wherein the tackifying resin is from 25% to 50% by weight of the adhesive.4. The adhesive of claim 1 , wherein the tackifying resin is from 40% to 50% by weight of the adhesive.5. The adhesive of claim 1 , wherein the liquid plasticizer is from 0% to 35% by weight of the adhesive.6. The adhesive of claim 1 , wherein the liquid plasticizer is from 5% to 30% by weight of the adhesive.7. The adhesive of claim 1 , wherein the liquid plasticizer is from 20% to 45% by weight of the adhesive.8. The adhesive of claim 1 , wherein a melt flow index of the block copolymer is at least 15 g/10 minutes (190° C./2.16 kg) or 10 g/10 minutes (200° C./5 kg).9. The adhesive of claim 1 , wherein a styrene content of the block copolymer is at least 14% by weight of the block copolymer.10. The adhesive of claim 1 , ...

Tackifier, Tackifier for Medical or Industrial Use, Adhesive and/or Pressure-Sensitive Adhesive for Medical or Industrial Use, Adhesive Sheet and/or Pressure-Sensitive Adhesive Sheet for Medical or Industrial Use, and Pressure-Sensitive Adhesive Tape for Medical or Industrial Use

Provided is a resin acid ester-based tackifier having a good compatibility with a synthetic rubber elastomer, being capable of reducing the melt viscosity of the elastomer, and being capable of imparting excellent adhesive properties and/or pressure-sensitive adhesive properties to the elastomer. The tackifier is composed of an ester composition characterized by 2. The tackifier according to claim 1 , wherein the aliphatic triol is glycerin.3. The tackifier according to claim 1 , which has a color tone of 200 Hazen units or less.4. The tackifier according to claim 1 , wherein the ester composition has an acid value of 1 to 10 mg KOH/g and a hydroxyl value of 1 to 20 mg KOH/g.5. The tackifier according to claim 1 , wherein the ester composition has a softening point of 90 to 110° C.6. The tackifier according to claim 1 , which is for medical or industrial use.7. An adhesive and/or pressure-sensitive adhesive for medical or industrial use claim 6 , the adhesive comprising the tackifier according to and a synthetic rubber elastomer.8. The adhesive and/or pressure-sensitive adhesive according to claim 7 , wherein the synthetic rubber elastomer is at least one type selected from the group consisting of styrene-isoprene-styrene block copolymers (SISs) claim 7 , styrene-butadiene-styrene block copolymers (SBSs) claim 7 , styrene-hydrogenated butadiene-styrene block copolymers (SEBSs) and styrene-ethylene/propylene-styrene copolymers (SEPSs).9. The adhesive and/or pressure-sensitive adhesive according to claim 7 , wherein the amount of the tackifier is 50 to 200 parts by weight relative to 100 parts by weight of the synthetic rubber elastomer.10. An adhesive sheet and/or pressure-sensitive adhesive sheet for medical or industrial use obtainable using the adhesive and/or pressure-sensitive adhesive according to .11. An adhesive tape and/or pressure-sensitive adhesive tape for medical or industrial use obtainable using the adhesive and/or pressure-sensitive adhesive according ...

ADHESIVE TAPE

The invention relates to an adhesive tape with a carrier composed of a film, there being applied on one side of the carrier an adhesive based on natural rubber or synthetic rubber, where the film is a biaxially oriented film made of polypropylene, polyethylene or polyester such as PET, and on the side of the carrier not coated with adhesive there is a release layer, based in particular on carbamate. 1. A splicing method for joining two webs together , said method comprising joining the two webs together with an adhesive tape , wherein the adhesive tape comprises a carrier composed of a film , there being applied on one side of the carrier an adhesive based on natural rubber or synthetic rubber , where the film is a biaxially oriented film made of polypropylene , polyethylene or polyester , and on the side of the carrier not coated with adhesive there is a release layer , based on carbamate.2. Method according to claim 1 ,whereinthe draw ratio on drawing of the film in longitudinal direction is 1:5 to 1:9, and/orthe draw ratio on drawing of the film in transverse direction is 1:5 to 1:10.3. Method according to claim 1 ,whereinthe draw ratio on drawing of the film in longitudinal direction (machine direction) is 1:3.5 to 1:6, and/orthe draw ratio on drawing of the film in the transverse direction is 3.5 to 1:6, and/orthe draw ratio on drawing of the film is the same in longitudinal and transverse directions.4. Method according to claim 1 ,whereinthe adhesive tape has fibre-like reinforcing materials, which are mounted directly on the film, incorporated into the film or incorporated into the adhesive.5. Method according to claim 1 ,whereinthe adhesive tape has a film carrier having a thickness of between 30 and 55 μm.6. Method according to claim 1 ,whereinan adhesion promoter is applied between carrier and layer of adhesive.7. Method according to claim 1 ,whereinthe adhesive is selected from the group consisting of the natural rubbers or of the blends of natural ...

PRESSURE-SENSITIVE ADHESIVE TAPE FOR PROTECTION OF COATED GLASS AND RELATED METHODS AND USES

The disclosure relates to pressure-sensitive adhesive (PSA) tapes for temporary protection of coated glass substrates with large dimensions, especially of Low-E coated glass, which enable improved storability and weatherability properties and facilitate their handling and removal. The PSA tapes include a carrier layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer includes one or more acrylic block copolymers, and/or wherein the pressure-sensitive adhesive layer has an initial adhesion strength of 50 to 300 cN/20 mm, and an adhesion strength of 50 to 400 cN/20 mm 7 days after application. Also described are manufacturing methods of said pressure-sensitive adhesive tape, their use and methods of producing glass units. 1. A pressure-sensitive adhesive tape for temporary protection of coated glass substrates , comprising a carrier layer and a pressure-sensitive adhesive layer , wherein the pressure-sensitive adhesive layer comprises one or more acrylic block copolymers.2. The pressure-sensitive adhesive tape according to claim 1 , wherein the pressure-sensitive adhesive layer comprises an acrylic block copolymer having a general formula (A)B in which:n is an integer of greater than or equal to 1;{'sub': 'g', 'A is an acrylic or methacrylic homo- or copolymer having a Tof more than 80° C., preferably in the range of 95 to 125° C.; and'}{'sub': 'g', 'B is an acrylic or methacrylic homo- or copolymer having a Tof less than −10° C., preferably in the range of from −35° C. to −60° C., more preferably from −40 to −55° C.'}3. The pressure-sensitive adhesive tape according to claim 1 , wherein the pressure-sensitive adhesive layer comprises a combination of multiple acrylic block copolymers claim 1 , at least one of them being an acrylic triblock copolymer.4. The pressure-sensitive adhesive tape according to claim 1 , wherein the acrylic block copolymer is selected from any of polymethyl methacrylate/polybutyl acrylate/polymethyl ...

Hot-melt pressure sensitive adhesive composition having improved rheological properties

An adhesive compositions containing at least one first styrene-isoprene-styrene block copolymer having a diblock content of not less than 45%, at least one second styrene-isoprene-styrene block copolymer having a styrene content of not more than 30 wt.-%, at least one first tackifying resin having a softening point of equal to or higher than 100° C., and at least one second tackifying resin having a softening point of equal to or higher than 120° C. Further, a method for bonding substrates together using the adhesive composition.

Adhesive formulations that are free of asphalt or substantially free of asphalt, methods of making the same, and roofing systems utilizing the same

Some embodiments of the present disclosure relate to roofing systems including a substrate and adhesive formulations that are free of asphalt or substantially free of asphalt. Some embodiments of the present disclosure relate to methods of making one or more adhesive formulations that are free of asphalt or substantially free of asphalt. Some embodiments of the present disclosure relate to systems utilizing one or more adhesive formulations that are free of asphalt or substantially free of asphalt.

All-Weather Pressure-Sensitive Adhesive

The present invention provides a non-cured-in-place waterproofing pressure-sensitive adhesive having a microfibrillar additive for achieving ideal balance between sag resistance at elevated temperatures and good adhesion at low temperatures. Waterproofing membranes comprising a carrier sheet and pressure-sensitive adhesive layer are also described, along with methods of manufacture. 1. A composition for a pressure-sensitive adhesive , comprising:at least one elastomer;at least one tackifier or bitumen;at least one plasticizer; anda microfibrillar rheology-modifying agent,wherein the composition is non-cured-in-place and is substantially devoid of structural diluents, radical addition diluents, curatives, cross-linkers, and liquid reactive oligomers.2. The composition of claim 1 , wherein the at least one elastomer is selected from the group consisting of butyl rubber claim 1 , polyisobutylene claim 1 , vinyl ethers claim 1 , styrene-isoprene-styrene block copolymers claim 1 , styrene-ethylene-butylene-styrene block copolymers claim 1 , styrene-butadiene-styrene block copolymers claim 1 , styrene-butadiene rubber claim 1 , ethylene vinyl acetate copolymers claim 1 , polyisoprene claim 1 , polybutadiene claim 1 , polychloroprene claim 1 , natural rubber claim 1 , and mixtures thereof.3. The composition of claim 1 , wherein the at least one tackifier is selected from the group consisting of rosin esters claim 1 , hydrogenated rosin esters claim 1 , dimerized rosin resins claim 1 , modified rosin resins claim 1 , aliphatic (C-5 resins) hydrocarbon resins claim 1 , hydrogenated aliphatic resins claim 1 , aromatic (C-9 resins) hydrocarbon resins claim 1 , hydrogenated aromatic resins claim 1 , mixed aliphatic/aromatic (mixed C-5/C-9 resins) hydrocarbon resins claim 1 , terpene resins claim 1 , terpene phenolic resins claim 1 , and mixtures thereof.4. The composition of claim 1 , wherein the at least one plasticizer is selected from the group consisting of paraffinic oils ...

HOT MELT ADHESIVE

One aspect of the present invention resides in a hot melt adhesive including a thermoplastic polymer and a tackifier, wherein the tackifier includes an acid-modified tackifier that is modified by at least one of maleic acid and maleic anhydride, and by at least one selected from the group consisting of acrylic acid, methacrylic acid, an acrylic acid ester, and a methacrylic acid ester. 1. A hot melt adhesive comprising a thermoplastic polymer and a tackifier , whereinthe tackifier includes an acid-modified tackifier that is modified by at least one of maleic acid and maleic anhydride, and by at least one selected from the group consisting of acrylic acid, methacrylic acid, an acrylic acid ester, and a methacrylic acid ester.2. The hot melt adhesive according to claim 1 , wherein the acid-modified tackifier is a terpene-based resin that is modified by at least one of maleic acid and maleic anhydride claim 1 , and by at least one selected from the group consisting of acrylic acid claim 1 , methacrylic acid claim 1 , an acrylic acid ester claim 1 , and a methacrylic acid ester.3. The hot melt adhesive according to claim 2 , wherein the terpene-based resin before modification in the acid-modified tackifier is at least one selected from the group consisting of a hydrogenated aromatic modified terpene resin claim 2 , an aromatic modified terpene resin claim 2 , and a hydrogenated terpene resin.4. The hot melt adhesive according to claim 1 , wherein the acid-modified tackifier is a hydrogenated petroleum-based resin that is modified by at least one of maleic acid and maleic anhydride claim 1 , and by at least one selected from the group consisting of acrylic acid claim 1 , methacrylic acid claim 1 , an acrylic acid ester claim 1 , and a methacrylic acid ester.5. The hot melt adhesive according to claim 4 , wherein the hydrogenated petroleum-based resin before modification in the acid-modified tackifier is at least one selected from the group consisting of a hydrogenated ...

HOT-MELT ADHESIVE AGENT

Problem to be solved of the present invention is to provide a hot-melt adhesive agent which is capable of applying at low temperature, excellent in adhesiveness at the wide temperature ranges (10 to 40° C.), and excellent in balance between tackiness and retention force, and a disposable product obtained by employing the hot-melt adhesive agent. Means for Solving the problem is a hot-melt adhesive agent comprising a thermoplastic block copolymer (A) which is a copolymer of vinyl class aromatic hydrocarbons and conjugated diene compounds, wherein the thermoplastic block copolymer (A) comprises the following component (A1) and component (A2): (A1) a radial type styrene block copolymer having a styrene content of 35 to 45% by weight, a diblock content of 50 to 90% by weight, and has a viscosity at 25° C. as 25% toluene solution of not more than 250 mPa·s; and (A2) a triblock type styrene block copolymer. 1. A hot-melt adhesive agent comprising a thermoplastic block copolymer (A) which is a copolymer of vinyl class aromatic hydrocarbons and conjugated diene compounds , wherein the thermoplastic block copolymer (A) comprises(A1) a radial type styrene block copolymer having a styrene content of 35 to 45% by weight , a diblock content of 50 to 90% by weight , and has a viscosity at 25° C. as 25% toluene solution of not more than 250 mPa·s; and(A2) a triblock type styrene block copolymer.2. The hot-melt adhesive agent according to claim 1 , wherein the radial type styrene block copolymer (A1) comprises a three branched type styrene-butadiene block copolymer.3. The hot-melt adhesive agent according to claim 1 , wherein the thermoplastic block copolymer (A) further comprises (A3) a linear type styrene block copolymer having a diblock content of 50 to 90% by weight.4. The hot-melt adhesive agent according to claim 1 , having a melt viscosity at 140° C. of less than 4000 mPa·s.5. A disposable product comprising the hot-melt adhesive agent according to .6. The disposable product ...

PRESSURE-SENSITIVE ADHESIVE SHEET

This invention provides a PSA sheet comprising a PSA layer (A) constituting an adhesive face and a viscoelastic layer (B) supporting the PSA layer (A). The PSA layer (A) comprises, as a base polymer (A), a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound. The base polymer (A) comprises 30% by mass or more of a diblock copolymer. The viscoelastic layer (B) has a thickness of 200 μm or larger. 1. A pressure-sensitive adhesive sheet comprisinga pressure-sensitive adhesive layer (A) constituting an adhesive face, anda viscoelastic layer (B) supporting the pressure-sensitive adhesive layer (A), whereinthe pressure-sensitive adhesive layer (A) comprises, as a base polymer (A), a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound,the base polymer (A) comprises 30% by mass or more of a diblock copolymer, andthe viscoelastic layer (B) has a thickness of 200 μm or larger.2. The pressure-sensitive adhesive sheet according to claim 1 , wherein the viscoelastic layer (B) comprises hollow particles.3. The pressure-sensitive adhesive sheet according to claim 1 , wherein the viscoelastic layer (B) has bubbles.4. The pressure-sensitive adhesive sheet according to claim 1 , wherein the viscoelastic layer (B) comprises an acrylic polymer as a base polymer (B).5. The pressure-sensitive adhesive sheet according to comprising a pressure-sensitive adhesive layer (B) as the viscoelastic layer (B).6. The pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer (A) comprises a tackifier resin Thaving a softening point of 120° C. or above and a tackifier resin Thaving a softening point below 120° C.7. The pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer (A) comprises a tackifier resin Thaving a softening point of 120° C. or above claim 1 , and the tackifier resin Tcomprises a tackifier resin Thaving an ...

ADHESIVE MASS, IN PARTICULAR FOR STRIPPABLE ADHESIVE STRIPS AND USE FOR ADHERING ON COATED WOODCHIP WALLPAPER

An adhesive mass consisting of (a) at least one elastomer component, of a polybutadiene-polyvinyl aromatic block copolymer type, having a proportion with respect to the total adhesive mass of 42 to 55 wt. % and having a deblock proportion with respect to the total block copolymer content of 32 to 55 wt. %, (b) at least one adhesive resin, which is a hydrocarbon resin having a DACP value of at least +50° C. and at most +85° C., (c) optionally at least one soft resin having a proportion of 0 to 15 wt. % with respect to the total adhesive mass, and (d) optionally further additives, which adhesive mass is particularly suitable for adhering on rough substrates such as plaster or woodchip wallpaper. 1. An adhesive consisting of(a) at least one elastomer component of the type of a polybutadiene-polyvinylaromatic block copolymer having a fraction in relation to the total adhesive of 42 wt % to 50 wt % and a diblock fraction in relation to the total block copolymer content of 32 wt % to 55 wt %, preferably,(b) at least one tackifier resin which is a hydrocarbon resin having a DACP of at least +5° C. and at most +50° C. and an MMAP of at least +50° C. and at most +85° C.,(c) optionally at least one plasticizing resin having a fraction of 0 wt % to 15 wt %, based on the total adhesive,(d) optionally further additives.2. The adhesive as claimed in claim 1 , characterized whereinthe elastomer component is composed to an extent of at least 90 wt %, based on the total block copolymer content, of at least one polybutadiene-polyvinylaromatic block copolymer which comprises polymer blocks predominantly formed by polymerization of vinylaromatics (A blocks) and blocks predominantly formed by polymerization of 1,3-butadiene (B blocks).3. The adhesive as claimed in claim 1 , wherein the tackifier resin is a hydrocarbon resin having a DACP of at most +45° C.4. The adhesive as claimed in claim 1 , wherein the tackifier resin is a hydrocarbon resin having an MMAP of at most +80° C.5. The ...

HMPSA INCORPORATING A PLASTICISER MADE FROM A RENEWABLE RAW MATERIAL

1) An HMPSA composition comprising from 20% to 50% of a composition of styrene block copolymers; from 35% to 65% of tackifying resin; and from 7% to 25%, as plasticizer, of a vegetable oil is chosen from sunflower, rapeseed, linseed and soybean oil.

CARBON FIBER SHEET FOR REINFORCEMENT

A reinforcing carbon fiber sheet () of the present invention includes: a carbon fiber filament () group arrayed in parallel in one direction; and a thermoplastic adhesive () present on at least part of the carbon fiber filament group in a direction across the carbon fiber filament group to unite the carbon fiber filament group. Preferably, the reinforcing sheet () includes a minimum amount of the carbon fibers required to produce a reinforcing effect. A sizing layer () of an epoxy-based resin is present on the surface of the carbon fiber filaments (), and has a high affinity for the thermoplastic adhesive layer () present thereon, so that they strongly adhere to each other. Thus, the present invention provides a reinforcing carbon fiber sheet that is thin, has good handling properties and easily adheres to a substance to be reinforced. 1. A reinforcing carbon fiber sheet comprising: a carbon fiber filament group arrayed in parallel in one direction; and a thermoplastic adhesive present on at least part of the carbon fiber filament group in a direction across a length direction of the carbon fiber filament group to unite the carbon fiber filament group.2. The reinforcing carbon fiber sheet according to claim 1 , wherein the reinforcing carbon fiber sheet has a thickness of 0.02 to 0.5 mm.3. The reinforcing carbon fiber sheet according to claim 1 , wherein the reinforcing carbon fiber sheet has a mass per unit area of 30 to 150 g/m.4. The reinforcing carbon fiber sheet according to claim 1 , wherein the carbon fiber filament group and the thermoplastic adhesive are in a ratio of 95 to 20% by mass:5 to 80% by mass based on 100% by mass of the reinforcing carbon fiber sheet.5. The reinforcing carbon fiber sheet according to claim 1 , wherein the thermoplastic adhesive is at least one selected from solvent-type adhesives and hot melt-type adhesives.6. The reinforcing carbon fiber sheet according to claim 1 , wherein the thermoplastic adhesive is at least one selected ...

ADHESIVE COMPRISING POLYISOBUTYLENE POLYMER AND STYRENE ISOBUTYLENE BLOCK COPOLYMER

In one embodiment, an adhesive composition is described comprising a polyisobutylene polymer component, a styrene-isobutylene block copolymer, and optionally a tackifier. The polyisobutylene polymer component comprises one or more polyisobutylene polymers. The polyisobutylene polymer component has an average weight average molecular weight ranging from 15,000 g/mole to 300,000 g/mole. The weight ratio of block copolymer to polyisobutylene polymer of the adhesive composition is greater than 2.2:1. In some embodiments, the adhesive composition is a pressure sensitive adhesive. 1. An adhesive composition comprisinga polyisobutylene polymer component having an average weight average molecular weight ranging from 15,000 g/mole to 300,000 g/mole;a styrene-isobutylene block copolymer component; andwherein the weight ratio of styrene-isobutylene block copolymer to polyisobutylene polymer of the adhesive composition is greater than 2.2:1.2. The adhesive composition of wherein the polyisobutylene polymer component comprises at least 50 wt.-% of polymerized units of polyisobutylene and optionally polymerized units derived from 1-butene and 2-butene.3. The adhesive composition of wherein the polyisobutylene polymer component comprises one or more polyisobutylene polymers having a weight average molecular weight ranging from 15 claim 1 ,000 g/mole to 300 claim 1 ,000 g/mole.4. The adhesive composition of wherein the one or more polyisobutylene polymers have a weight average molecular weight claim 3 , of at least 50 claim 3 ,000 g/mole.5. The adhesive composition of wherein the one or more polyisobutylene polymers have a weight average molecular weight no greater than 150 claim 3 ,000 g/mole.6. The adhesive composition of wherein the polyisobutylene polymer comprises one or more polymers having a weight average molecular weight less than 15 claim 1 ,000 g/mole.7. The adhesive composition of wherein the adhesive comprises 5 wt.-% to 40 wt.-% of polyisobutylene polymer.8. The ...

PLASMA TREATMENT FOR MULTILAYER ADHESIVE BONDING ELEMENT

Method for bonding by wrapping a medium which is capable of expanding transversely to a winding with an adhesive tape, in which: 1. Method for bonding by wrapping a medium which is capable of expanding transversely to a winding with an adhesive tape , in which:an adhesive tape is unrolled from an adhesive tape roll,{'b': '1', 'the unrolled adhesive tape is provided on one side of a carrier film ()'}{'b': 2', '3, 'with an adhesive cement layer () and on an opposite side with a separating agent layer (),'}{'b': '3', 'the separating agent layer () is subjected to a plasma treatment,'}{'b': '2', 'the plasma-treated adhesive tape is wound around the medium which is capable of expanding transversely to a winding, so that at least a portion of the adhesive tape is bonded to the adhesive cement layer () on a lower winding ply.'}2. Method according to claim 1 ,wherein the adhesive tape is wound around the medium in several winding plies which are bonded one on top of the other.3. Method according to claim 1 ,wherein the adhesive tape is furnished with at least one filament, which increases its tensile strength.4. Method according to claim 1 ,{'b': '3', 'wherein a separating agent in the separating agent layer () is selected from the group consisting of: surfactant release systems based on long-chain alkyl groups such as stearyl sulfosuccinates or stearyl sulfosuccinamates; polymers which may be selected from the group consisting of polyvinylstearyl carbamates, polyethylene imine stearyl carbamides, chromium complexes of C14-C28 fatty acids and stearyl copolymers or based on acrylic polymers with perfluorinated alkyl groups; silicones or fluorosilicone compounds.'}5. Method according to claim 1 ,{'b': '2', 'wherein an adhesive cement of the adhesive cement layer () is selected from the group consisting of adhesive cements based on natural or synthetic rubber and silicone adhesive cements.'}6. Method according to claim 1 ,wherein air, carbon dioxide, inert gas, nitrogen or ...

Curable pressure-sensitive adhesive strip based on vinylaromatic block copolymer

The invention relates to a pressure-sensitive adhesive strip containing at least one layer SK1 of a self-adhesive composition based on vinylaromatic block copolymer and containing tackifying resin, wherein the vinylaromatic block copolymer 1. A pressure-sensitive adhesive strip containing at least one layer SK1 of a self-adhesive composition based on vinylaromatic block copolymer and containing tackifying resin , wherein the vinylaromatic block copolymercontains at least one polymer block A formed predominantly by polymerization of vinylaromatics, andsimultaneously contains at least one polymer block B formed predominantly by polymerization of conjugated dienes, where the proportion of 1,2-bonded conjugated diene in the B block is less than 30% by weight.3. The pressure-sensitive adhesive strip according to claim 1 , whereinthe self-adhesive composition of layer SK1 is foamed.4. The pressure-sensitive adhesive strip of claim 2 , wherein{'sup': '3', 'the absolute density of the self-adhesive composition layer SK1 is 400 to 990 kg/m.'}5. The pressure-sensitive adhesive strip according to claim 1 , whereinthe vinylaromatic block copolymer is a mixture of linear block copolymers which comprise a mixture of diblock copolymers (A-B) and triblock copolymers (A-B-A), where the vinylaromatic block copolymer has a diblock copolymer content of 30% to 60% by weight.6. The pressure-sensitive adhesive strip according to claim 1 , whereinthe tackifying resin of layer SK1 comprises, to an extent of at least 75% by weight, hydrocarbon resin or terpene resin or a mixture of thereof.7. The pressure-sensitive adhesive strip according to{'claim-ref': {'@idref': 'CLM-00003', 'claim 3'}, 'according to , wherein the foamed layer SK1 comprises microballons in an amount of up to 12% by weight, based on the overall composition of the layer.'}8. A process of producing the pressure-sensitive adhesive strip of claim 1 , wherein the self-adhesive composition is processed from solution or from the ...

POLYMER COMPOSITION AND PRESSURE SENSITIVE ADHESIVES OR FILMS MADE THEREFROM

The present invention provides a polymer composition for pressure sensitive adhesives or films thereof. The polymer composition comprises 20-40 parts by weight of a tackifier; and 60-80 parts by weight of a polymer, wherein the polymer and the tackifier are 100 parts by weight. The polymer comprises at least a first vinyl aromatic based copolymer formed by polymerization of vinyl aromatic monomer and conjugated diene monomer, wherein a vinyl aromatic monomer content of the first vinyl aromatic based copolymer is 16 wt %˜28 wt %, a vinyl structure content of a conjugated diene monomer content in the first vinyl aromatic based copolymer is 32 wt %˜50 wt %; and a melt flow index (MFI) of the first vinyl aromatic based copolymer is 20 g/10 min˜60 g/10 min (230° C., 2.16 kg). The present invention also provides the pressure sensitive adhesives or films made from the polymer composition. 1. A polymer composition for pressure sensitive adhesives or films , comprising:a tackifier of 20-40 parts by weight; anda polymer of 60-80 parts by weight, wherein the polymer plus the tackifier equals 100 parts by weight, the polymer comprises at least a first vinyl aromatic based copolymer formed by polymerization of a vinyl aromatic monomer and a conjugated diene monomer, wherein a vinyl aromatic monomer content of the first vinyl aromatic based copolymer is 16 wt %˜28 wt %, a vinyl structure content of a conjugated diene monomer content in the first vinyl aromatic based copolymer is 32 wt %˜50 wt %; and a melt flow index (MFI) of the first vinyl aromatic based copolymer is 20 g/10 min˜60 g/10 min (230° C., 2.16 kg).2. The polymer composition of claim 1 , wherein the vinyl aromatic monomer content of the first vinyl aromatic based copolymer is 18 wt %˜26 wt %.3. The polymer composition of claim 1 , wherein the vinyl structure content of the conjugated diene monomer content in the first vinyl aromatic based copolymer is 32 wt %˜45 wt %.4. The polymer composition of claim 1 , wherein ...

HOT-MELT ADHESIVE AND USE THEREOF

The present invention relates to the use of a hot-melt adhesive for adhesive bonding of at least a first packaging and a second packaging, the hot-melt adhesive comprising: (a) 7-70 parts per weight, preferably 20-60 parts by weight, more preferred 30-50 parts per weight, even more preferred 35-45 parts by weight, of a polymer component, the polymer component comprising a first styrene block copolymer and a second styrene block copolymer, the first styrene block copolymer and the second styrene block copolymer having a different styrene content, (b) 15-60 parts per weight, preferably 25-50 parts per weight, even more preferred 35-45 parts per weight, of a tackifying component; (c) 5-30 parts per weight, preferably 5-25 parts per weight, of a plasticizer component; and d) 0.02-1.2 parts per weight of a stabilizer component. 1. Use of a hot-melt adhesive for adhesive bonding of at least a first packaging and a second packaging , the hot-melt adhesive comprising:(a) 7-70 parts per weight, preferably 20-60 parts by weight, more preferred 30-50 parts per weight, even more preferred 35-45 parts by weight, of a polymer component, the polymer component comprising a first styrene block copolymer and a second styrene block copolymer, the first styrene block copolymer and the second styrene block copolymer having a different styrene content;(b) 15-60 parts per weight, preferably 25-50 parts per weight, even more preferred 35-45 parts per weight, of a tackifying component;(c) 5-30 parts per weight, preferably 5-25 parts per weight, of a plasticizer component; and(d) 0.02-1.2 parts per weight of a stabilizer component.2. Use according to claim 1 , wherein the packaging is a foodstuff packaging claim 1 , preferably a foodstuff container claim 1 , more preferably a bottle or a can claim 1 , most preferably a plastic bottle.3. Use according to claim 1 , wherein the polymer component further comprises an alpha-alkyl styrene claim 1 , preferably an alpha-C1-C4-alkyl styrene claim 1 , ...

HOT-MELT ADHESIVE AND USE THEREOF

The present invention relates to the use of a hot-melt adhesive for adhesive bonding of at least a first packaging and a second packaging, the hot-melt adhesive comprising: (a) 7-48 parts per weight of a polymer component, the polymer component comprising a styrene block copolymer; (b) 15-52 parts per weight of a tackifying component, wherein the tackifying component comprises thermoplastic adhesive resin, aliphatic hydrocarbon, cycloaliphatic hydrocarbon, aromatic hydrocarbon, the respective hydrocarbon optionally being modified and/or hydrogenated, terpenes, the terpenes optionally being modified or hydrogenated, rosins, the rosins optionally being modified or hydrogenated, or mixtures thereof; (c) 5-25 parts per weight of a plasticizer component, wherein the plasticizer component comprises paraffinic oils, naphthenic oils, polybuten, polybutadien, dibasic esters, polyols or mixtures thereof; and d) 0.02-1.2 parts per weight of a stabilizer component, wherein the stabilizer component is a light stabilizer, preferably as a sterically hindered phenolic antioxidant and/or a sterically hindered amine, most preferably is pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate). 1. Use of a hot-melt adhesive for adhesive bonding of at least a first packaging and a second packaging , the hot-melt adhesive comprising:(a) 7-48 parts per weight of a polymer component, the polymer component comprising a styrene block copolymer;(b) 15-52 parts per weight of a tackifying component, wherein the tackifying component comprises thermoplastic adhesive resin, aliphatic hydrocarbon, cycloaliphatic hydrocarbon, aromatic hydrocarbon, the respective hydrocarbon optionally being modified and/or hydrogenated, terpenes, the terpenes optionally being modified or hydrogenated, rosins, the rosins optionally being modified or hydrogenated, or mixtures thereof;(c) 5-25 parts per weight of a plasticizer component, wherein the plasticizer component comprises paraffinic oils, ...

Blended block copolymer/silicone pressure sensitive adhesives

There is provided a pressure sensitive adhesive demonstrating adhesion to low energy surfaces which is a radiation-crosslinked mixture of a first component comprising a blend of a nonfunctionalized polysiloxane and a silicate-based tackifier; and a second component comprising a blend of a styrenic block copolymer and a tackifier compatible with the styrenic block copolymer. In some embodiments the weight ratio of nonfunctionalized polysiloxane to styrenic block copolymer.in the mixture is between 0.20 and 1.15. In some embodiments the tackifier compatible with the styrenic block copolymer is a blend of hydrogenated hydrocarbon resin tackifier and terpene-based tackifier in a weight ratio of greater than 0.75 hydrogenated hydrocarbon resin tackifier to terpene-based tackifier.

PRESSURE-SENSITIVE ADHESIVE STRIP FOR MOISTURE-INSENSITIVE PEELABLE ADHESIVE BONDS

A method of separating two substrates bonded with a redetachable, at least single-sidedly pressure-sensitive adhesive strip composed at least of a) a core layer which has a breaking extension of at least 300%, b) an outer carrier layer which has a breaking extension of not more than 120% and which at least sectionally is connected to the core layer such that it separates from the core layer when the latter is extensionally stretched, and c) a first adhesive layer which is applied at least sectionally to the side of the outer carrier layer that is opposite the side connected to the core layer, in which the core layer is stretched in the direction of the bond plane, starting from a region which has been made nonadhesive, until the core layer releases from at least one of the outer carrier layers so that the two substrates are separated from one another. 2. The adhesive strip of claim 1 , wherein the core layer is formed from an adhesive which is redetachable by extensional stretching in the bond plane.3. The adhesive strip of wherein the core layer protrudes beyond the outer carrier layer at least in one region.4. The adhesive strip of claim 1 , wherein the protruding region is made nontacky claim 1 , by the application of pieces of film claim 1 , foil or paper.5. The adhesive strip of claim 1 , wherein the adhesive of the core layer is constructed on the basis of styrene block copolymers.6. The adhesive strip of claim 1 , wherein the core layer is formed by a carrier which is redetachable by extensional stretching in the bond plane.7. The adhesive strip of wherein a further adhesive layer is applied at least sectionally on the side of the carrier that is opposite the side connected to the outer carrier layer.8. The adhesive strip of wherein between carrier and outer carrier layer there is a second adhesive layer which has the same composition as the further adhesive layer.9. The adhesive strip of claim 8 , wherein the bond strengths of the second adhesive layer and ...

BOND PLY MATERIALS AND CIRCUIT ASSEMBLIES FORMED THEREFROM

A composition for a bond ply, and a circuit subassembly that comprises such bond ply, are disclosed. The circuit subassembly can have a UL-94 rating of V-0. The composition of the bond ply layer comprises 25 to 45 volume percent of liquid resin; 10 to 40 weight percent of a bromine-containing or phosphorus-containing aromatic compound having a peak melting point of at least about 260° C.; and 5 to 35 volume percent inorganic filler; 1. A bond ply layer , having a thickness of 50 to 400 micrometers formed from a composition comprising:25 to 45 volume percent of liquid resin comprising polybutadiene and/or polyisoprene and, in addition, a nitrogen-containing compound having allyl groups, wherein the nitrogen-containing compound is present in an amount of 5 to 15 volume percent, based on total composition and polybutadiene and/or polyisoprene in an amount of 20 to less than 60 volume percent, based on the total resin;10 to 40 weight percent of a bromine-containing or phosphorus-containing aromatic compound having a peak melting point of at least about 260° C.; and5 to 35 volume percent inorganic filler, wherein all percents are calculated based on the bond ply composition absent solvent;{'sub': f', 'k, 'wherein the bond ply has a UL-94 rating of at least V-1, a Dof less than 0.006 at 10 GHz and a Dof 2 to 10 at 10 GHz.'}2. The bond ply layer of claim 1 , further comprising 1 to 25 volume percent of poly(arylene ether).3. The bond ply layer of claim 1 , wherein the bromine-containing compound has a wt. % bromine (theoretical) of 50 to 80% claim 1 , a molecular weight of 500 to 2500 claim 1 , and comprises two to four brominated aromatic rings.5. The bond ply layer of claim 1 , wherein the bromine-containing compound is selected from the group consisting of ethylene bistetrabromophthalide claim 1 , tetrabromdiphenoxy benzene claim 1 , decabromodiphenoxy oxide claim 1 , and ethane-1 claim 1 ,2-bis(pentabromo phenyl).6. The bond ply layer of claim 4 , wherein the ...

ADHESIVE SHEET AND ARTICLE

The present invention is to provide an adhesive sheet that can be easily peeled without causing deformation or the like of the adherend when the load applied per unit area of the adhesive sheet at the time of affixation is set to a light load of about 5 N/cmor less, and that can exhibit very excellent adhesive strength when the load is set to about 10 N/cmor more. The present invention relates to an adhesive sheet comprising an adhesive layer (A) that has a storage modulus at 23° C. in the range of 1×10Pa to 5×10Pa and has a surface with a center line average surface roughness Ra in the range of 0.2 μm to 5.0 μm to be in contact with an adherend. 1. An adhesive sheet comprising an adhesive layer (A) having a storage modulus at 23° C. in the range of 1×10Pa to 5×10Pa , the adhesive layer (A) having a surface with a center line average surface roughness Ra in the range of 0.2 μm to 5.0 μm to be in contact with an adherend.2. The adhesive sheet according to claim 1 , which comprises the adhesive layer (A) on at least one surface side of a support.3. The adhesive sheet according to claim 1 , wherein the adhesive layer (A) is an adhesive layer that contains a rubber polymer or an acrylic polymer.4. The adhesive sheet according to claim 1 , which exhibits a strength of 20 N/cmor more as measured by a process comprising: cutting the adhesive sheet into a square frame shape with an outer side length of 14 mm and a width of 2 mm; affixing the cut adhesive sheet on a transparent acrylic plate having a rectangular parallelepiped shape with a length of 15 mm claim 1 , a width of 15 mm claim 1 , and a thickness of 2 mm to form a test piece; then affixing a stainless steel plate (SUS304) having a depth of 20 mm claim 1 , a width of 50 mm claim 1 , and a thickness of 1 mm and having a 10 mm-diameter hole at the center to the adhesive sheet-side surface of the test piece so that the centers thereof coincide with each other; then applying a pressure from a pressor at 50 N/cmfor 10 ...

Redetachable adhesive strip

The invention relates to an adhesive strip redetachable without residue or destruction by extensive stretching substantially in the bond plane, comprising at least one layer of adhesive which is foamed with microballoons, and at least one carrier B. 1. An adhesive strip redetachable without residue or destruction by extensive stretching substantially in the bond plane , comprisingan adhesive, which is foamed with microballoons, and which comprises a pressure-sensitive adhesive A,a carrier layer B comprising a carrier B, whereinthe pressure-sensitive adhesive A{'b': 1', '1', '1, 'comprises an elastomer part (a) based on at least one kind of a polyvinylaromatic-polydiene block copolymer, where the elastomer part (a) comprises at least 90 wt % of polyvinylaromatic-polydiene block copolymers, the polyvinylaromatic content of the polyvinylaromatic-polydiene block copolymers is at least 12 wt % and at most 35 wt %, and the fraction of the elastomer part (a), based on the overall pressure-sensitive adhesive A, is at least 40 wt % and at most 55 wt %, and'}{'b': 2', '2', '2, 'comprises a tackifying resin part (a) with at least one kind of a tackifying resin, where the tackifying resin part (a) comprises at least 90 wt % of hydrocarbon resins which are substantially compatible with the polydiene blocks and substantially incompatible with the polyvinylaromatic blocks, and the fraction of the tackifying resin part (a), based on the overall pressure-sensitive adhesive A is at least 40 wt % and at most 60 wt %, and also'}{'b': 3', '3', '4, 'optionally comprises a plasticizing resin part (a), where the fraction of the plasticizing resin part (a), based on the overall pressure-sensitive adhesive A, is 0 wt % to at most 5 wt %, and optionally comprises further additives (a),'}where the fraction of microballoons, based on the overall pressure-sensitive adhesive A, is at least 0.5 wt % and at most 2.5 wt %,where the thickness of the adhesive layer A is at least 20 μm and at most 75 μ ...

LOW TEMPERATURE HOT MELT ADHESIVES FOR DISPOSABLE ARTICLES WITH HIGH CREEP RESISTANCE

The present invention is directed to adhesives suitable for application using a hot melt process at a relatively low temperature in the range of about 110° C. to about 130° C. Such adhesives exhibit desirable viscoelastic properties and are suitable for bonding an elastic attachment in the manufacture of disposable articles, such as disposable diapers. 1. A method of forming an article comprising:(a) applying a low application temperature hot melt adhesive onto a substrate at a temperature in the range of from about 110° C. to about 130° C. at an add-on-level of about 20 to about 100 mg/m/strand; [ i. 5 to 20 wt % of the styrenic block copolymer that (1) has a melt flow index greater than 33, measured in accordance with ASTM D 1238, and (2) has a styrene content greater than 40%;', 'ii. 0.5 to 5% wt % of the wax;', 'iii. 30-70 wt % of a tackifier that has a ring and ball softening point less than about 105° C.;', 'iv. 0.1-2 wt % of an antioxidant; and', 'v. optionally, up to 30 wt % of an oil; and, 'wherein the low application temperature hot melt adhesive comprises, 'wherein the cooled adhesive has a creep performance of less than about 15% after 300% strain is applied on the cooled adhesive at 38° C. for four hours., '(b) cooling the adhesive to room temperature;'}2. The method of wherein the adhesive is applied by strand coating.3. A method of forming an article comprising:(a) applying the low application temperature hot melt adhesive onto a substrate at a temperature in the range of from about 110° C. to about 130° C. at an add-on-level of about 3 to about 30 mg/in; and i. 5 to 20 wt % of the styrenic block copolymer that (1) has a melt flow index greater than 33, measured in accordance with ASTM D 1238, and (2) has a styrene content greater than 40%;', 'ii. 0.5 to 5% wt % of the wax;', 'iii. 30-70 wt % of a tackifier that has a ring and ball softening point less than about 105° C.;', 'iv. 0.1-2 wt % of an antioxidant; and', 'v. optionally, up to 30 wt % of an ...

ADHESIVE COMPOSITION, THERMOSETTING ADHESIVE SHEET, AND PRINTED WIRING BOARD

An adhesive composition has a low dielectric constant, a low dielectric loss tangent, and an excellent folding endurance. The adhesive composition includes: with respect to the total of 100 parts by mass of the adhesive composition, 75 to 90 parts by mass of a styrene elastomer; 3 to 25 parts by mass of a modified polyphenyleneether resin having a polymerizable group at an end; and totally 10 parts by mass or less of an epoxy resin and an epoxy resin curing agent, wherein the styrene ratio of the styrene elastomer is less than 30%. 1. An adhesive composition , comprising: with respect to the total of 100 parts by mass of the adhesive composition ,75 to 90 parts by mass of a styrene elastomer,3 to 25 parts by mass of a modified polyphenyleneether resin having a polymerizable group at an end; andtotally 10 parts by mass or less of an epoxy resin and an epoxy resin curing agent,wherein the styrene ratio of the styrene elastomer is less than 30%.2. The adhesive composition according to claim 1 , wherein the glass transition temperature after curing is −40 to 40° C.3. The adhesive composition according to claim 1 , wherein the styrene ratio of the styrene elastomer is 5 to 25%.4. The adhesive composition according to claim 1 , wherein the styrene elastomer has a weight average molecular weight of 100 claim 1 ,000 or more.5. The adhesive composition according to claim 1 , wherein the content of the modified polyphenyleneether resin is 5 to 20 parts by mass.6. The adhesive composition according to claim 1 , wherein the modified polyphenyleneether resin has at least one of an epoxy group and an ethylenically unsaturated bond at an end.7. The adhesive composition according to claim 1 , wherein the adhesive composition comprises substantially no peroxide.8. The adhesive composition according to claim 1 , wherein the epoxy resin curing agent is a latent epoxy resin curing agent.9. A thermosetting adhesive sheet comprising a base material and a thermosetting adhesive layer ...

ADHESIVE COMPOSITION CONTAINING UV CURABLE RUBBER, AND PROTECTIVE FILM USING SAME

The present invention provides an adhesive composition for a protective film, comprising a UV curable rubber having a degree of unsaturation of 70-85%. In addition, the present invention provides a protective film formed with the adhesive composition for a protective film. 1. An adhesive composition for protective films , comprising:a UV curable rubber having a degree of unsaturation from 70% to 85%.2. The adhesive composition according to claim 1 , wherein the UV curable rubber comprises at least one selected from the group consisting of isoprene claim 1 , styrene claim 1 , polybutadiene claim 1 , acrylonitrile butadiene claim 1 , butyl claim 1 , polychloroprene claim 1 , urethane claim 1 , and acrylic rubbers.3. The adhesive composition according to claim 2 , wherein the styrene rubber comprises at least one selected from the group consisting of styrene-isoprene-styrene block copolymers claim 2 , styrene-butadiene-styrene block copolymers claim 2 , styrene-butylene-styrene block copolymers claim 2 , styrene-propylene-styrene block copolymers claim 2 , acrylonitrile-butylene-styrene copolymers claim 2 , and carboxylic acid derivatives thereof.4. The adhesive composition according to claim 2 , wherein the styrene rubber comprises styrene in an amount of 15% to 30%.5. The adhesive composition according to claim 1 , wherein the UV curable rubber has a weight average molecular weight from 30 claim 1 ,000 to 60 claim 1 ,000.6. The adhesive composition according to claim 1 , wherein the UV curable rubber has a glass transition temperature from −60° C. to −40° C.7. The adhesive composition according to claim 1 , wherein the UV curable rubber has a surface energy from 30 mN/m to 40 mN/m.8. The adhesive composition according to claim 1 , further comprising:0.1 parts by weight to 1 part by weight of a photopolymerization initiator based on 100 parts by weight of the UV curable rubber.9. A protective film formed of the adhesive composition according to .10. The protective ...

ADHESIVE COMPRISING LOW MOLECULAR WEIGHT POLYISOBUTYLENE POLYMER AND STYRENE ISOBUTYLENE BLOCK COPOLYMER

In one embodiment, an adhesive composition is described comprising a polyisobutylene polymer component, a styrene-isobutylene block copolymer, and optionally a tackifier. The polyisobutylene polymer component comprises one or more polyisobutylene polymers. The polyisobutylene polymer component has an average weight average molecular weight ranging from 100 g/mole to less than 15,000 g/mole. In some embodiments, the adhesive composition is a pressure sensitive adhesive. 1. An adhesive composition comprisinga polyisobutylene polymer component having an average weight average molecular weight ranging from 500 g/mole to less than 15,000 g/mole; anda styrene-isobutylene block copolymer component.2. The adhesive composition of wherein the polyisobutylene polymer component comprises at least 50 wt.-% of polymerized units of polyisobutylene and optionally polymerized units derived from 1-butene and 2-butene.3. The adhesive composition of wherein the weight ratio of block copolymer to polyisobutylene polymer is at least 2.2:1 and no greater than 20:1.4. The adhesive composition of wherein the adhesive comprises 5 wt.-% to 40 wt.-% of polyisobutylene polymer.5. The adhesive composition of wherein the adhesive comprises at least 10 wt.-% to 95 wt.-% of styrene-isobutylene-styrene block copolymer (SIBS).6. The adhesive composition of wherein the polyisobutylene polymer component further comprises one or more polyisobutylene polymers having a weight average molecular weight ranging from 15 claim 1 ,000 g/mole to 300 claim 1 ,000 g/mole.7. The adhesive composition of wherein the adhesive further comprises additives an amount up to 60 wt.-%.8. The adhesive composition of wherein the additive comprises tackifier.9. The adhesive composition of wherein the adhesive comprises an ultraviolet blocking agent.10. The adhesive composition of wherein the ultraviolet blocking agent is a hydroxyphenyl benzotriazole ultraviolet blocking agent.11. The adhesive composition of wherein the ...

Pressure-sensitive adhesive strip

The invention relates to a pressure-sensitive adhesive strip composed of at least three layers, comprising 212. The pressure-sensitive adhesive strip as claimed in claim 1 , having a symmetric construction with respect to layer composition claim 1 , in that the foamed vinylaromatic block copolymer compositions of layers SK and SK are chemically identical.312. The pressure-sensitive adhesive strip as claimed in claim 1 , having a structurally symmetric construction claim 1 , in that layers SK and SK are of the same thickness and/or have the same density.4. The pressure-sensitive adhesive strip as claimed in claim 1 , wherein{'b': 1', '2, 'the self-adhesive composition layers SK and/or SK are based on vinylaromatic block copolymers comprising polymer blocks (i) predominantly formed from vinylaromatics (A blocks), and (ii) predominantly formed by polymerization of 1,3-dienes (B blocks).'}5. The pressure-sensitive adhesive strip as claimed in claim 1 , wherein{'sub': n', 'n', 'n, 'the vinylaromatic block copolymer is at least one synthetic rubber in the form of a block copolymer having an A-B, A-B-A, (A-B), (A-B)X or (A-B-A)X structure,'} A blocks are independently a polymer formed by polymerization of at least one vinylaromatic,', 'B blocks are independently a polymer formed by polymerization of conjugated dienes having 4 to 18 carbon atoms, or a partly hydrogenated derivative of such a polymer,', 'X is the radical of a coupling reagent or initiator, and', 'n is an integer ≥2., 'in which'}6. The pressure-sensitive adhesive strip as claimed in claim 4 , whereinthe vinylaromatics for formation of the A block include styrene, a-methylstyrene and/or styrene derivatives.7. The pressure-sensitive adhesive strip as claimed in claim 4 , whereinmonomer for forming the B block is selected from the group consisting of butadiene, isoprene, ethylbutadiene, phenylbutadiene, piperylene, pentadiene, hexadiene, ethylhexadiene, dimethylbutadiene, and a mixture thereof.8. The pressure- ...

BLOCK COPOLYMER COMPOSITION FOR VISCOUS ADHESIVE, AND ADHESIVE COMPOSITION

It is an object to provide a block copolymer composition for a viscous adhesive, which will be a viscous adhesive composition excellent in balance of the adhesive properties such as tack strength and tackiness, having a low melt viscosity, and excellent solubility, coating properties, ejection stability, and surface skin quality. The block copolymer composition for a viscous adhesive having: 1. A block copolymer composition for a viscous adhesive comprising:a component (a): 50 mass % or more and 90 mass % or less of a block copolymer having a number average molecular weight of 10,000 or more and 60,000 or less, comprising a polymer block (A) mainly including a vinyl aromatic monomer unit and a polymer block (B) mainly including a conjugated diene monomer unit; anda component (b): 10 mass % or more and 50 mass % or less of a block copolymer having a number average molecular weight of more than 120,000 and 200,000 or less, comprising a polymer block (A) mainly including a vinyl aromatic monomer unit and a polymer block (B) mainly including a conjugated diene monomer unit;a content of the vinyl aromatic monomer unit being 25 to 50 mass %;the composition having a 15 mass % toluene solution viscosity of 10 to 40 mPa·s; anda number average molecular weight ratio of the component (b) to the component (a) being 2.0 to 4.0.2. The block copolymer composition for the viscous adhesive according to claim 1 , whereinthe component (a) is a diblock copolymer represented by a formula (A-B); andthe component (b) is a tribranch block copolymer represented by a formula (A-B)3X, wherein X represents a residue of a coupling agent or a residue of a polymerization initiator.3. The block copolymer composition for the viscous adhesive according to claim 1 , wherein the number average molecular weight ratio of the component (b) to the component (a) is 2.3 to 3.6.4. The block copolymer composition for the viscous adhesive according to claim 1 , whereinthe content of the component (a) is more ...

ADHESIVE COMPOUND

The invention relates to an adhesive compound containing a multi-armed vinyl aromatic block copolymer, one or more adhesive resins, and one or more auxiliary crosslinking agents. The invention also relates to an adhesive means comprising said adhesive compound and a carrier material and/or a cover. The invention also relates to a method for producing such an adhesive means. Compared to adhesive systems known up until now, such an adhesive means demonstrates clearly improved adhesion to hard, non-polar surfaces such as, for example, novel coated surfaces in the automotive industry. 1. An adhesive compound containing:at least one multi-armed vinyl aromatic block copolymer;at least one adhesive resin; andat least one auxiliary crosslinking agent.2. The adhesive compound according to claim 1 , characterized in that the multi-armed vinyl aromatic block copolymer is an elastomer from the group of styrene block copolymers (SBC) claim 1 , preferably from the group of styrene isoprene block copolymers (SIB) claim 1 , styrene butadiene block copolymers (SBB) or styrene ethylene butylene block copolymers (SEBS) and/or a hydrogenation product of these block copolymers.3. The adhesive compound according to claim 1 , characterized in that the multi-armed vinyl aromatic block copolymer contains more than 4 claim 1 , 5 claim 1 , 6 claim 1 , 7 claim 1 , 8 claim 1 , 9 or 10 side arms claim 1 , or the multi-armed vinyl aromatic block copolymer contains more than 10 side arms.4. The adhesive compound according to claim 1 , characterized in that at least one adhesive resin is an aromatic hydrocarbon resin claim 1 , preferably a phenolic modified aromatic hydrocarbon.5. The adhesive compound according to claim 1 , characterized in that the auxiliary crosslinking agent has a general formula selected from:{'sup': 1', '2', '1', '2, 'sub': n', 'm, 'a) R—C—X—R, wherein Rrepresents any hydrocarbon chain and Rrepresents terminal acrylate groups which are bonded to the central hydrocarbon atom X ...

Hot Melt Positioning Adhesive

A hot melt adhesive composed of a styrene-butadiene-styrene polymer having a relatively high diblock content and styrene content, a second styrenic block copolymer having a lower diblock content than the styrene-butadiene-styrene polymer, which is preferably a styrene-isoprene-styrene polymer, together with tackifying resin, and liquid plasticizer. The preferred styrene-butadiene-styrene polymer contains a styrene content of greater than 30 percent and a diblock content greater than 30 percent by weight. When used in conjunction with a styrene-isoprene-styrene polymer, the hot melt composition provides improved peel strength at 5° C., and when used as a pad attachment positioning adhesive, did not exhibit adhesive transfer at 40° C. 1. A hot melt adhesive composition , comprising:(a) about 2% to about 25% by weight of a first styrenic block copolymer comprising a styrene-butadiene-styrene block polymer with a styrene content greater than 30% by weight and a diblock content greater than 30% by weight;(b) about 2% to about 25% by weight of a second styrenic block copolymer which can have either an isoprene or butadiene midblock with a lower diblock content than the first styrenic block copolymer;(c) about 25% to about 60% by weight of a tackifying resin, said tackifying resin present in an amount greater than the combined amount of the first and second styrenic block copolymers;(d) about 0% to about 15% by weight of an aromatic endblock reinforcing resin;(e) about 15% to about 50% by weight of a liquid plasticizer; and(f) about 0% to about 5% by weight of a stabilizer or antioxidant.2. The hot melt adhesive composition of wherein said first styrenic block copolymer has styrene content greater than 33% by weight.1. The hot melt adhesive composition of wherein said first styrenic block copolymer has styrene content greater than 35% by weight.4. The hot melt adhesive composition of wherein said first styrenic block copolymer has diblock content greater than 45% by weight ...

RUBBER-BASED ADHESIVE COMPOSITION AND RUBBER-BASED ADHESIVE TAPE FOR AUTOMOBILE USING THE SAME

The present invention relates to a rubber-based adhesive composition containing: a styrene-butadiene-styrene (SBS) rubber; a hardener; and an adhesion enhancer, the adhesion enhancer being contained in 50 to 100 parts by weight based on 100 parts by weight of the styrene-butadiene-styrene (SBS) rubber, and to a rubber-based adhesive tape for an automobile using the same.

THERMALLY EXPANDABLE RUBBER COMPOSITION

A thermally expandable rubber composition, including a) at least one solid rubber A from the group made of styrene-butadiene rubber, cis-1,4-polybutadiene, synthetic isoprene rubber, natural rubber, ethylene-propylene-diene rubber (EPDM), nitrile rubber, butyl rubber and acrylic rubber; b) processing oil PO, comprising at least one Treated Distillate Aromatic Extract (TDAE); c) at least one vulcanization system VS; d) at least one filler G; e) at least one blowing agent BA selected from the list of bicarbonate, polycarboxylic acids and salts of polycarboxylic acids. The thermally expandable rubber composition provides good adhesion on metal substrates after curing at curing-temperatures around 160° C. 1. A rubber composition , comprisinga) at least one solid rubber A from the group consisting of styrene-butadiene rubber, cis-1,4-polybutadiene, synthetic isoprene rubber, natural rubber, ethylene-propylene-diene rubber (EPDM), nitrile rubber, butyl rubber and acrylic rubber;b) processing oil PO, comprising at least one Treated Distillate Aromatic Extract (TDAE);c) at least one vulcanization system VS;d) at least one filler G;e) at least one blowing agent BA selected from the list of bicarbonate, polycarboxylic acids and salts of polycarboxylic acids.2. The rubber composition according to claim 1 , wherein the blowing agent BA contains a mixture of bicarbonate and of polycarboxylic acids and/or salts thereof.3. The rubber composition according to claim 2 , wherein the weight ratio of (polycarboxylic acids and/or salts thereof) to (bicarbonate) is from 0.05-15.4. The rubber composition according to claim 1 , wherein the blowing agent BA has a maximum decomposition peak measured by Differential Scanning calorimetry (DSC) within 135-200° C.5. The rubber composition according to claim 1 , wherein the weight ratio of solid rubber A to blowing agent BA is from 2-30.6. The rubber composition according to claim 1 , wherein the at least one solid rubber A is selected from ...

ELASTIC ADHESIVE COMPOSITION AND AN ELASTIC COMPOSITE MADE WITH THE SAME

This invention claims hot melt adhesive compositions that can be used to form elastic composites that are useful in disposable absorbent articles. 1. An elastic composite comprising:a first and second substrate; and from about 45% to about 75% by weight of one or more styrene block copolymers having an unsaturated mid-block and an average styrene content of at least about 20%,', 'less than 20% by weight of a tackifying agent,', 'from about 10% to about 60% by weight of a plasticizer,, 'a hot melt adhesive composition between the first and second substrates thereby bonding the first and second substrates to each other and providing elasticity in the bonded area, said hot melt adhesive composition comprisingthe hot melt adhesive composition having a viscosity of no greater than about 20,000 cps at 177° C.2. The elastic composite of wherein the hot melt adhesive composition has a Mechanical Hysteresis 50% strain (coat weight 60 gsm) 2nd cycle of no greater than 0.38.3. The elastic composite of wherein the one or more styrene block copolymers has an average diblock content of no greater than about 10% by weight.4. The elastic composite of wherein the one or more styrene block copolymers has an average styrene content of at least about 25% by weight.5. The elastic composite of wherein the hot melt adhesive composition comprises from about 2% to about 15% by weight of a tackifying agent.6. The elastic composite of wherein the hot melt adhesive composition comprises from about 3% to less than 10% by weight of a tackifying agent. 7 claim 1 , The elastic composite of wherein at least one styrene block copolymer is present having an ASTM D 1238 (200° C. claim 1 , 5.0 kg) melt flow rate of at least about 50 g/10 minutes.8. The elastic composite of wherein the hot melt adhesive composition further comprises a paraffin wax.9. The elastic composite of wherein the first and second substrate are nonwoven.10. The elastic composite of wherein the nonwoven is carded and manufactured ...

Non-Swelling Hot Melt Adhesive

Provided herein is a hot melt pressure sensitive adhesive comprising one or more styrene block copolymers, a tackifier, and polyisobutylene plasticizer, wherein the adhesive contains less than 1 wt % of a plasticizer oil. The adhesive can be used in a label construction along with a facestock such as a polyethylene facestock, wherein the swelling factor of the facestock is reduced as compared to the swelling factor of the facestock in labels that include a plasticizer oil. Also provided are methods for producing and using the hot melt adhesive, and articles labeled with the hot melt adhesive. 1. A hot melt adhesive comprising:one or more styrene block copolymers;a tackifier;a polyisobutylene; andless than 1 wt % of a plasticizer oil.2. A hot melt adhesive consisting essentially of:one or more styrene block copolymers;a tackifier;a polyisobutylene; andless than 1 wt % of a plasticizer oil.30. The hotmelt adhesive of claim or 2 , comprising from 15 wt % to 35 wt % polyisobutylene.4. The hotmelt adhesive of any one of - 2 , wherein the weight ratio of the polyisobutylene to the one or more styrene block copolymers ranges from 3:8 to 8:3.50. The hotmelt adhesive of any of claims - 4 , wherein the weight ratio of the polyisobutylene to the tackifier ranges from 1:3 to 3:1.60. The hot melt adhesive of any of claims - 5 , wherein the number average molecular weight of the polyisobutylene ranges from 700 g/mol to 2500 g/mol.70. The hot melt adhesive of any of claims - 6 , comprising from 20 wt % to 45 wt % of the one or more styrene block copolymers.80. The hot melt adhesive of any of claims - 7 , wherein at least one of the one or more styrene block copolymers is a styrene isoprene block copolymer.9. The hot melt adhesive of claim 8 , wherein the melt index of each of the at least one styrene isoprene block copolymer ranges from 10 g/(10 minute) to 35 g/(10 minute).10. The hot melt adhesive of or claim 8 , wherein the diblock content of each of the at least one styrene ...

DRY ADHESIVES

A dry adhesive comprising a micro-featured and nano-featured surface, and a compliant surface having a hardness of about 60 Shore A or less, the micro-featured and nano-featured surface and the compliant surface being capable of forming upon contact a dry adhesive bond with each other. 115-. (canceled)16. A laminating film for laminating a micro-featured and nano-featured surface , the laminating film having a compliant surface having a hardness of about 60 Shore A or less , the compliant surface being capable of forming upon contact a dry adhesive bond with the micro-featured and nano-featured surface.17. The laminating film of claim 16 , wherein the compliant surface is a surface of a compliant layer located on a base layer.18. The laminating film of claim 16 , wherein the compliant surface comprises spots of a compliant material deposited on a base layer.19. The laminating film of claim 16 , wherein the compliant surface comprises a polymer.20. The laminating film of claim 16 , wherein the micro-featured and nano-featured surface is a paper surface.21. The laminating film of claim 20 , wherein the paper surface is a surface of an inkjet photo paper.22. The laminating film of claim 19 , wherein the polymer comprised in the compliant surface is a thermoplastic elastomer or a crosslinked elastomer.23. The laminating film of claim 22 , wherein the polymer comprised in the compliant surface is a silicon elastomer claim 22 , a silicon rubber claim 22 , a styrene-isoprene elastomer claim 22 , a styrene-butadiene elastomer claim 22 , a styrene-ethylene/butylene-styrene elastomer claim 22 , a styrene-ethylene/propylene-styrene elastomer claim 22 , an ethylene-butadiene-styrene elastomer claim 22 , a siloxane polymer claim 22 , or a poly-isocyanate.24. The laminating film of claim 16 , wherein the compliant surface has a hardness of about 55 Shore A or less.25. The laminating film of claim 24 , wherein the compliant surface has a hardness of about 50 Shore A or less.26. ...

PRESSURE SENSITIVE ADHESIVE COMPOSITION AND PROTECTIVE FILM EMPLOYING THE SAME

A pressure sensitive adhesive composition and a protective film employing the same are provided. The pressure sensitive adhesive composition includes 30-45 parts by weight of a tackifier and 55-70 parts by weight of a polymer. The polymer includes at least one block copolymer. The block copolymer includes a vinyl aromatic block polymerized by a vinyl aromatic monomer and a conjugated diene block polymerized by a conjugated diene monomer. The block copolymer meets one of the following conditions: (1) the content of the vinyl aromatic monomer is from 15 wt % to 25 wt % and the content of the vinyl group of the conjugated diene block is less than or equal to 45 wt % or, (2) the content of the vinyl aromatic monomer is from 10 wt % to 15 wt % and the content of the vinyl group of the conjugated diene block is less than or equal to 45 wt %, or greater than or equal to 60 wt %. 1. A pressure sensitive adhesive composition , comprising:30-45 parts by weight of a tackifier; and55-70 parts by weight of a polymer, wherein the polymer comprises at least one block copolymer, wherein the total weight of the tackifier and the polymer is 100 parts by weight, wherein the block copolymer comprises a vinyl aromatic block polymerized by a vinyl aromatic monomer and a conjugated diene block polymerized by a conjugated diene monomer, and the block copolymer meets one of the following conditions:(1) the content of the vinyl aromatic monomer is from 15 wt % to 25 wt %, based on the total weight of the block copolymer, and the content of the vinyl group of the conjugated diene block is less than or equal to 45 wt %, based on the weight of the conjugated diene block; or(2) the content of the vinyl aromatic monomer is from 10 wt % to 15 wt %, based on the total weight of the block copolymer, and the content of the vinyl group of the conjugated diene block is less than or equal to 45 wt %, or greater than or equal to 60 wt %, based on the weight of the conjugated diene block.2. The pressure ...

NON-CURABLE RUBBER-BASED ADHESIVE COMPOSITION FOR TOUCH SCREEN PANEL, AND NON-CURABLE RUBBER-BASED ADHESIVE FILM FOR TOUCH SCREEN PANEL USING SAME

The present invention relates to a non-curable rubber-based adhesive composition for a touch screen panel, containing styrene-isoprene-styrene (SIS) rubber, and a non-curable rubber-based adhesive film for a touch screen panel, using the same. 1. A non-curable rubber-based adhesive composition for a touch screen panel comprising:a styrene-isoprene-styrene (SIS) rubber.2. The non-curable rubber-based adhesive composition for a touch screen panel according to claim 1 , wherein a weight average molecular weight of the styrene-isoprene-styrene (SIS) rubber is 5 claim 1 ,000 to 200 claim 1 ,000.3. The non-curable rubber-based adhesive composition for a touch screen panel according to claim 1 , wherein a styrene content of the styrene-isoprene-styrene (SIS) rubber is 15 wt % to 30 wt %.4. The non-curable rubber-based adhesive composition for a touch screen panel according to claim 1 , wherein the non-curable rubber-based adhesive composition for a touch screen panel does not contain an adhesion promoter.5. A non-curable rubber-based adhesive film for a touch screen panel comprising:a base film;{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'an adhesive layer formed by coating the non-curable rubber-based adhesive composition for the touch screen panel of on the base film; and'}a release film formed on the adhesive layer.6. The non-curable rubber-based adhesive film for a touch screen panel according to claim 5 , wherein a curing degree (gel content) of the adhesive layer is 0%.7. The non-curable rubber-based adhesive film for a touch screen panel according to claim 5 , wherein a release peeling force of the adhesive layer is 10 g/in to 30 g/in.8. The non-curable rubber-based adhesive film for a touch screen panel according to claim 5 , wherein the release film includes a base layer; and a release layer formed on one surface or both surfaces of the base layer.9. The non-curable rubber-based adhesive film for a touch screen panel according to claim 8 , wherein the ...

High Performance Reactive Pressure Sensitive Adhesive Composition

Provided herein is a high performance reactive pressure sensitive adhesive (HPR-PSA) formulation which can be compounded and coated on facestock at ambient temperatures. Upon curing by exposing to a high temperature, the HPR-PSA becomes a structural adhesive with superior mechanical performance. This HPR-PSA formulation comprises the unique mixture of the SIS and SB rubber, hydrocarbon and rosin resins tackifiers, and a phenolic derivative curing agent. 1. An adhesive comprising:a first rubber comprising a styrene-isoprene-styrene (“SIS”) copolymer,a second rubber comprising a styrene-butadiene (“SB”) copolymer,a tackifier comprising a compound selected from the group consisting of a hydrocarbon resin, a rosin resin, and mixtures thereof; anda curing agent comprising a phenolic resin.2. The adhesive of claim 1 , wherein the weight ratio of SIS to SB ranges from 4:1 to 0.25:1.3. The adhesive of claim 1 , wherein the curing agent comprises a phenolic derivative and is essentially free of sulfur.4. The adhesive of claim 2 , wherein the phenolic derivative comprises bromized phenol formaldehyde.5. The adhesive of claim 4 , wherein the bromized phenol formaldehyde is bromized alkyl phenol formaldehyde.6. The adhesive of claim 1 , wherein the adhesive comprises from 10 to 50 wt % SIS claim 1 , based on the total weight of the adhesive.7. The adhesive of claim 1 , wherein the adhesive comprises from 10 to 50 wt % SB claim 1 , based on the total weight of the adhesive.8. The adhesive of claim 1 , wherein the weight ratio of the tackifier to the combined SIS and SB copolymers ranges from 0.11:1 to 4:1.9. The adhesive of claim 1 , wherein the amount of rosin resin in the adhesive ranges from 0 to 50 wt % based on the total weight of the adhesive.10. The adhesive of claim 1 , wherein the amount of hydrocarbon resin in the adhesive ranges from 0 to 50 wt % based on the total weight of the adhesive.11. The adhesive of claim 1 , wherein the weight ratio of hydrocarbon resin to ...

Adhesive agent and adhesive tape using said adhesive agent

An object of the present invention is to provide an emulsion-based adhesive having excellent adhesive force, excellent heat resistance of adhesive force, excellent holding power, less adhesive residue and good “tack”.According to the present invention, an emulsion-based adhesive comprising: a styrene-butadiene rubber; a natural rubber; and a tackifier, wherein a gel fraction of the styrene-butadiene rubber is 20 to 60% by mass, a content of the natural rubber with respect to 100 parts by mass of the styrene-butadiene rubber is 10 to 35 parts by mass, a content of the tackifier with respect to 100 parts by mass of the styrene-butadiene rubber is 100 to 150 parts by mass, and a ratio of a styrene monomer unit in a total amount of the styrene-butadiene rubber and the natural rubber contained in the adhesive is 5 to 15% by mass, is provided.

Protective film

A protective film includes a non-adhesion layer and adhesion layer, and the non-adhesion layer further includes a surface layer and middle layer, where the surface layer of the non-adhesion layer is formed from a blend of Homo-polypropylene(H-PP) and low density polyethylene(LDPE), the middle layer of the non-adhesion layer is formed from a blend of high density Polyethylene(HDPE) and LDPE among Polyethylene series, and the adhesion layer is formed from thermoplastic elastomer added with low hardness plastic material, allowing the protective film of the present invention not to yield melting and thus sticking issues easily, and ensuring that the protective film has a good attachment and unwinding nature on application.

CARRIER FILM FOR SEMI-CONDUCTOR WAFER PROCESSING

A carrier film includes an adhesive layer, a core layer, and a release layer. The adhesive layer includes a hydrogenated styrene block copolymer having a storage modulus (G′) of less than or equal to 400 kPa at 25° C., and a first polyolefin elastomer. The core layer includes a second polyolefin elastomer, and the release layer includes a polyolefin. 1. A carrier film , comprising:an adhesive layer comprising a hydrogenated styrene block copolymer having a storage modulus (G′) of less than or equal to 400 kPa at 25° C., and a first polyolefin elastomer;a core layer comprising a second polyolefin elastomer; anda release layer comprising a polyolefin.2. The carrier film according to claim 1 , wherein the hydrogenated styrene block copolymer having a storage modulus (G′) of less than or equal to 300 kPa at 25° C.3. The carrier film according to claim 1 , wherein the hydrogenated styrene block copolymer has a melt flow rate (MFR) of greater than 200 g/10 minutes at 230° C. under a 2.16 kg mass.4. The carrier film according to claim 1 , wherein the hydrogenated styrene block copolymer has a styrene content of at least 20%.5. The carrier film according to claim 1 , wherein the first polyolefin elastomer and the second polyolefin elastomer are the same material.6. The carrier film according to claim 5 , wherein the first polyolefin elastomer and the second polyolefin elastomer are ethylene-octene copolymers.7. The carrier film according to claim 1 , wherein the first polyolefin elastomer is an alpha-olefin copolymer.8. The carrier film according to claim 7 , wherein the second polyolefin elastomer is an ethylene-octene copolymer.9. The carrier film according to claim 1 , wherein the core layer further comprises a third polyolefin elastomer.10. The carrier film according to claim 9 , wherein the second polyolefin elastomer and the third polyolefin elastomer have different melt flow rates (MFRs).11. The carrier film according to claim 10 , wherein the core layer further ...

HOT MELT ADHESIVE

Problem to be solved of the present invention is to provide a hot-melt adhesive agent which is capable of applying at low temperature, has an excellent adhesiveness at low temperature, and a disposable product obtained by employing the hot-melt adhesive agent. Means for solving the problem is a hot-melt adhesive agent comprised of a thermoplastic block copolymer (A) which is a copolymer of vinyl class aromatic hydrocarbons and conjugated diene compounds, wherein the thermoplastic block copolymer (A) comprises a radial type styrene block copolymer having a styrene content of 35 to 45% by weight and a diblock content of 50 to 90% by weight, and having a viscosity at 25° C. as a 25% (by weight) toluene solution of not more than 250 mPa·s (A1). 1. A hot melt adhesive agent comprising:(A) 3 to 60 parts by weight of a radial styrene block copolymer having (i) a styrene content of 35 to 45% by weight and a diblock content of 50 to 90% by weight and (ii) a viscosity less than 250 mPa·s at 25° C. and 25% by weight in toluene solution;(B) about 60 to about 85 parts by weight of a tackifier; and(C) about 15 to about 20 parts by weight of an oil.2. The hot-melt adhesive agent of claim 1 , wherein the radial styrene block copolymer has a structure of{'br': None, 'sub': 'n', '(S−E)Y,'}wherein S is a styrene block, E is a conjugated diene compound block, Y is a coupling agent and n is the number of linear block copolymers radially project from the coupling agent and has a value of 3 or 4.3. The hot-melt adhesive agent of 1 further comprising a linear styrene block copolymer.4. The hot melt adhesive agent of claim 1 , wherein the radial styrene block copolymer is present at concentrations of 8 to 45 parts by weight.5. The hot melt adhesive agent of claim 1 , wherein the radial styrene block copolymer is present at concentrations of 15 to 35 parts by weight.6. A disposable product comprising the hot-melt adhesive agent of .7. The disposable product of which is a paper diaper or a ...

ADHESIVE COMPOSITION AND ADHESIVE TAPE FABRICATED USING THE SAME

Provided is an adhesive tape that has higher self-adhesion force and higher self-adhesive creep resistance and does not have an odor problem of the adhesive face while maintaining HM workability. A hot-melt adhesive composition of the present invention contains at least an elastomer, a tackifier resin, a filler, and a petroleum-based plasticizer, in which the elastomer is a specific styrene-isoprene-styrene block copolymer and a terpene resin, a C5/C9 petroleum resin, and a homopolymer of a styrene-based monomer and/or a copolymer of a styrene-based monomer/an aliphatic monomer are contained as the tackifier resin. 1. A hot-melt adhesive composition comprising at least an elastomer , a tackifier resin , a filler , and a petroleum-based plasticizer , whereinthe elastomer is a styrene-isoprene-styrene block copolymer (SIS) having a styrene content of 16% by mass or more and 40% by mass or less, anda terpene resin, a C5/C9 petroleum resin, and a homopolymer of a styrene-based monomer and/or a copolymer of a styrene-based monomer/an aliphatic monomer are contained as the tackifier resin.2. The hot-melt adhesive composition according to claim 1 , wherein an amount of the homopolymer of a styrene-based monomer and/or the copolymer of a styrene-based monomer/an aliphatic monomer blended is 2.5% by mass or more and 55% by mass or less based on a total mass of all the tackifier resins.3. The hot-melt adhesive composition according to claim 1 , wherein an amount of the petroleum-based plasticizer blended is 2.5% by mass or more and 9.0% by mass or less based on a total mass of the hot-melt adhesive composition.4. The hot-melt adhesive composition according to claim 2 , wherein an amount of the petroleum-based plasticizer blended is 2.5% by mass or more and 9.0% by mass or less based on a total mass of the hot-melt adhesive composition.5. The hot-melt adhesive composition according to claim 1 , wherein a blended amount ratio of the homopolymer of a styrene-based monomer and/or ...

BLOCK COPOLYMER COMPOSITION FOR HOT MELT ADHESIVE

Provided is a block copolymer composition for a hot melt adhesive, which can provide a hot melt adhesive composition having excellent softening agent retainability, heat resistance and transparency. Disclosed is a block copolymer composition for a hot melt adhesive, comprising a block copolymer A and a block copolymer B each having a particular structure, characterized in that the aromatic vinyl monomer unit content of the block copolymer A is 30% to 50% by weight; the aromatic vinyl monomer unit content of the block copolymer B is 15% to 25% by weight; a content of the aromatic vinyl monomer units relative to all polymer components of the block copolymer composition is 18% to 45% by weight; the weight ratio (A/B) of the block copolymer A with respect to the block copolymer B is 20/80 to 80/20; and the ratio (MwA/MwB) of the weight average molecular weight of the block copolymer A (MwA) with respect to the weight average molecular weight of the block copolymer B (MwB) is 0.65 to 1.5. 2. A hot melt adhesive composition comprising 100 parts by weight of the block copolymer composition for a hot melt adhesive according to claim 1 , 30 parts to 800 parts by weight of a tackifying resin claim 1 , and 10 parts to 500 parts by weight of a softening agent.3. The hot melt adhesive composition according to claim 2 , used as an adhesive for a label. The present invention relates to a block copolymer composition for a hot melt adhesive. More particularly, the invention relates to a block copolymer composition for a hot melt adhesive, the copolymer composition capable of providing a hot melt adhesive composition having excellent softening agent holding properties, heat resistance and transparency and being particularly suitable as an adhesive for labeling.Hot melt adhesives are adhesives that are able to adhere various products efficiently since they solidify in a short time, and are highly safe to human body since the adhesives do not require solvents. Therefore, hot melt ...

LOW-OUTGASSING ADHESIVE TAPE FOR WRAPPING ELONGATED OBJECT

The object of the invention is a low-fogging adhesive tape for enveloping elongated objects, in particular a low-fogging wrapping tape for bundling cables in automobiles. The latter has a support and an adhesive coating on at least one side of the support. According to the invention, a synthetic-rubber-based coating is used as the adhesive coating. 1. A low-outgassing adhesive wrapping tape for bundling cables in automobiles , the tape comprising:a substrate having opposite faces, anda synthetic rubber-based adhesive coating on at least one of the faces of the substrate.2. The adhesive tape defined in claim 1 , wherein the coating comprises at least one thermoplastic elastomer and one adhesive resin.3. The adhesive tape defined in claim 2 , wherein the adhesive resin in the adhesive coating makes up a proportion of 20 to 70 wt % and the thermoplastic elastomer a proportion of 30 to 80 wt %.4. The adhesive tape defined in claim 2 , wherein the adhesive resin claim 2 , at temperatures above room temperature up to 100° C. or more claim 2 , no longer has any volatile condensable components.5. The adhesive tape defined in claim 1 , wherein the adhesive coating is applied over the entire surface or as a stripe coating to one or both faces of the substrate.6. The adhesive tape defined in claim 1 , wherein the adhesive coating has an application weight of 20 g/mto 300 g/m.7. The adhesive tape defined in claim 1 , wherein the substrate is a textile substrate constructed from polyester yarns and polyester fibers or polyamide yarns and/or polyamide fibers.8. The adhesive tape defined in claim 7 , wherein the substrate is a nonwoven substrate or fabric substrate.9. The adhesive tape defined in claim 8 , wherein the substrate is chemically and/or mechanically compacted.10. The adhesive tape defined in claim 1 , wherein a gravimetric outgassing value G of less than 3 mg is observed for a test specimen of about 50 cm.11. The adhesive tape defined in claim 10 , wherein the ...

HOT MELT COMPOSITION, HOT MELT COMPOSITION PRODUCTION METHOD, SEAL MATERIAL, ELECTRONIC DEVICE, AND LAMP

One aspect of the present invention is a hot melt composition containing a silane coupling agent, a thermoplastic polymer, a softener, and a catalyst, wherein the silane coupling agent is hydrolyzed to a compound having a boiling point of 70 to 180° C. 1. A hot melt composition comprising a silane coupling agent , a thermoplastic polymer , a softener , and a catalyst ,wherein the silane coupling agent is hydrolyzed to a compound having a boiling point of 70 to 180° C.2. A hot melt composition comprising a modified thermoplastic polymer modified with a silane coupling agent , a softener , and a catalyst ,wherein the silane coupling agent is hydrolyzed to a compound having a boiling point of 70 to 180° C.3. The hot melt composition according to claim 1 , wherein the silane coupling agent has at least one kind selected from the group consisting of an alkoxy group having 2 to 4 carbon atoms claim 1 , an alkoxy group having an ether group claim 1 , an oxime group claim 1 , an alkylamino group claim 1 , and an alkylsilanoxy group.4. The hot melt composition according to claim 3 ,wherein the alkoxy group having 2 to 4 carbon atoms is an ethoxy group or an isopropoxy group,the alkoxy group having an ether group is a methoxyethoxy group,the oxime group is a 2-butanone oxime group,the alkylamino group is an n-butylamino group, andthe alkylsilanoxy group is a trimethylsilanoxy group or an isobutylsilanoxy group.5. The hot melt composition according to claim 3 , wherein the silane coupling agent further has at least one kind selected from the group consisting of a vinyl group claim 3 , an epoxy group claim 3 , a styryl group claim 3 , an acryl group claim 3 , a methacryl group claim 3 , an amino group claim 3 , a ureido group claim 3 , a mercapto group claim 3 , a sulfide group claim 3 , and an isocyanate group.6. The hot melt composition according to claim 1 , wherein the thermoplastic polymer is a copolymer of a conjugated diene compound and a vinyl aromatic hydrocarbon.7. ...

Adhesive For An Absorbent Article

An absorbent article is disclosed. The absorbent article has a longitudinal centerline, a transverse centerline generally perpendicular to the longitudinal centerline, a wearer-facing surface and an opposing garment-facing surface, a front end region, an opposing back end region, and a central region disposed between the front end region and the back end region. The absorbent article further includes a topsheet; a backsheet; an absorbent system disposed between the topsheet and the backsheet; and a plurality of pre-formed adhesive portions disposed on the garment-facing surface. The absorbent article exhibits a peel force of at least 1.0 N in accordance with the Peel Force test and leaves no residue in accordance with the Adhesive Residue test method. 1. An absorbent article comprising a longitudinal centerline , a transverse centerline generally perpendicular to the longitudinal centerline , a wearer-facing surface and an opposing garment-facing surface , a front end region , an opposing back end region , and a central region disposed between the front end region and the back end region , the absorbent article further comprising:a topsheet;a backsheet;an absorbent system disposed between the topsheet and the backsheet; anda plurality of pre-formed adhesive portions disposed on the garment-facing surface, wherein the absorbent article exhibits a peel force of at least 1.0 N, in accordance with the Peel Force test, and leaves no residue in accordance with the Adhesive Residue test method.2. The absorbent article of claim 1 , wherein the absorbent article exhibits a peel force of from between 1.0 N and about 5.0 N.3. The absorbent article of claim 1 , wherein the plurality of adhesive portions is disposed in the front end region and the back end region.4. The absorbent article of claim 3 , wherein the front end region comprises one or more adhesive portions and wherein a length of the one or more pre-formed portions is at least about 15 percent of a length of the ...

ADHESIVE COMPOSITIONS CONTAINING A BLOCK COPOLYMER WITH POLYMYRCENE

The invention relates to a novel block copolymer comprising at least one polymeric monoalkenyl arene block and at least one polymeric myrcene block having a low and stable viscosity and having good adhesive properties when used in an adhesive composition or as a damping material. An adhesive composition is also described, preferably containing an SMS triblock optionally mixed with an SM diblock. The adhesive composition comprises: 1) a block copolymer having at least one polymeric monoalkenyl arene block and at least one polymeric myrcene block; 2) a tackifier; 3) optional plasticizer; and 4) optionally a stabilizer. Compared with adhesive compositions comprising SIS block copolymers, those comprising SMS block copolymers have lower and more stable viscosity. 1. A block copolymer composition comprising: at least one polymeric block of monoalkenyl arene and at least one polymeric block of myrcene , said composition having 50 wt. % or less monoalkenyl arene and a melt flow rate of >about 50 grams/10 min. at 200° C. and 5 kg. weight according to ASTM D1238 , said at least one block of monoalkenyl arene having a mol. wt. of 10-20 kg./mol. , and said at least one block of myrcene having a mol. wt. of 40-220 kg./mol.2. The block copolymer composition of having the general structure S-M claim 1 , S-M-S claim 1 , S-M-(S-M)-S claim 1 , (S-M-S′)X or (S-M)X where S and S′ are polymeric blocks of monoalkenyl arene claim 1 , M is a polymeric block of myrcene claim 1 , m is an integer from 1 to 10 claim 1 , and n is an integer from 1 to about 30 claim 1 , and X is the residue of a coupling agent.3. The block copolymer composition of claim 1 , wherein said monoalkenyl arene is selected from the group of styrene claim 1 , alpha-methylstyrene claim 1 , methylstyrene claim 1 , p-tertbutylstyrene claim 1 , dimethylstyrene claim 1 , or mixtures of these.4. A composition comprising: the block copolymer set forth in ; a tackifier; optionally a plasticizer; and optionally a stabilizer.5. ...

PRESSURE SENSITIVE ADHESIVES COMPRISING A POLYMODAL ASYMMETRIC MULTIARM ELASTOMERIC BLOCK COPOLYMER

Pressure sensitive adhesives made from a polymodal asymmetric elastomeric block copolymer, a tackifying resin and liquid polyisoprene are provided. Articles containing these pressure sensitive adhesives including protective sheeting, labels, laminated adhesives, tapes and adhesive films are described. The pressure sensitive adhesive based on polymodal asymmetric block copolymer described herein exhibits good adhesion on various substrates such as stainless steel (SS), polypropylene (PP) and high density polyethylene (HDPE) and enhanced high temperature shear without the effect of electron beam or UV curing. 1. A pressure sensitive adhesive comprising:a) at least 30% by weight of a polymodal asymmetric multiarm elastomeric block copolymer comprising polystyrene and polyisoprene;b) at least 25% by weight of a tackifying resin; andc) at least 0.1% by weight of a liquid polyisoprene rubber,wherein the pressure sensitive adhesive is not crosslinked.2. The pressure sensitive adhesive of claim 1 , wherein the adhesive comprises at least 35% by weight of the polymodal asymmetric multiarm elastomeric block copolymer.3. The pressure sensitive adhesive of claim 1 , wherein the adhesive comprises at least 30% by weight of the tackifying resin.4. The pressure sensitive adhesive of claim 1 , wherein the adhesive comprises at least 5% by weight of the liquid polyisoprene rubber.5. The pressure sensitive adhesive of claim 1 , wherein the polymodal asymmetric multiarm elastomeric block copolymer comprises a polymerized monovinyl aromatic compound and a conjugated diene having the formula QY and wherein: Q represents an individual arm of the block copolymer and has the formula S-B; n represents the number of arms Q in the block copolymer and is a whole number of at least 3; and Y is the residue of a multifunctional coupling agent; and further wherein: (a) S is a nonelastomeric polymer segment endblock of a polymerized monovinyl aromatic homopolymer that is polystyrene claim 1 , there ...

Adhesive Paste with Increased Temperature Stability and Use Thereof for an Adhesive Tape

The invention relates to an adhesive paste containing at least • a vinyl aromatic block copolymer • at least one adhesive resin • a second copolymer based on a vinyl aromatic and on an unsaturated anhydride, wherein the vinyl aromatic content is preferably at least 50 mol %. 1. A pressure-sensitive adhesive comprising a vinylaromatic block copolymer; at least one tackifier resin; and a second copolymer based on a vinylaromatic and an unsaturated anhydride , the vinylaromatic fraction being at least 50 mol %.2. The pressure-sensitive adhesive of claim 1 , wherein the vinylaromatic block copolymer is formed from polymer blocks of vinylaromatics (A blocks) claim 1 , and of blocks formed by polymerization of 1 claim 1 ,3-dienes (B blocks) claim 1 , and/or of a copolymer of both.3. The pressure-sensitive adhesive of claim 1 , wherein the vinylaromatic block copolymer is formed from vinylaromatics and isobutylene.4. The pressure-sensitive adhesive of claim 1 , wherein the block copolymers have a linear A-B-A structure or a radial architecture.5. The pressure-sensitive adhesive of wherein the block copolymers are star-shaped or linear multiblock copolymers.6. The pressure-sensitive adhesive of wherein the block copolymers are A-B diblock copolymers claim 2 , with the fraction of end blocks being between 13 wt % to 40 wt %.7. The pressure-sensitive adhesive of comprising mixtures of block copolymers with linear A-B-A structure and diblock copolymers claim 1 , or mixtures of multiblock copolymers with radial or star-shaped architecture and diblock copolymers claim 1 , or mixtures of block copolymers with linear A-B-A structure claim 1 , of multiblock copolymers with radial or star-shaped architecture and of diblock copolymers.8. The pressure-sensitive adhesive of wherein the second copolymer vinylaromatics comprise styrene claim 1 , vinyltoluene claim 1 , α-methylstyrene claim 1 , chlorostyrene claim 1 , o- or p-methylstyrene claim 1 , 2 claim 1 ,5-dimethylstyrene claim 1 , ...

Blends of Block Copolymer and Acrylic Adhesives

Pressure sensitive adhesive compositions containing 92 to 99.9 parts of a block copolymer adhesive composition and 0.1 to less than 8 parts of an acrylic adhesive composition are described. Tapes including such adhesives, and methods of making such tapes are also described. 1. A pressure sensitive adhesive composition comprising: (i) at least one rubbery block comprising a first polymerized conjugated diene, a hydrogenated derivative thereof, or combinations thereof; and', '(ii) at least one glassy block comprising a first polymerized monovinyl aromatic monomer; and, '(a) a first block copolymer comprising'}, '(A) 92 to 99.9 parts of a block copolymer adhesive composition comprising (i) 70 to 100 parts of at least one acrylic or methacrylic ester of a non-tertiary alkyl alcohol, wherein the non-tertiary alkyl alcohol contains 4 to 20 carbon atoms; and', '(ii) 10 to 30 parts of a copolymerized reinforcing monomer., '(B) 0.1 to less than 8 parts of an acrylic adhesive composition comprising2. The pressure sensitive adhesive according to claim 1 , wherein the first block copolymer is a multi-arm block copolymer of the formula Q-Y claim 1 , wherein: (i) R represents the rubbery block; and', '(ii) G represents the glassy block;, '(a) Q represents an arm of the multi-arm block copolymer and each arm independently has the formula R-G, wherein(b) n represents the number of arms and is a whole number of at least 3; and(c) Y is a residue of a multifunctional coupling agent.3. The pressure sensitive adhesive according to claim 2 , wherein the block copolymer adhesive composition further comprises (b) a second block copolymer comprising at least one rubbery block comprising a polymerized second conjugated diene claim 2 , a hydrogenated derivative thereof claim 2 , or combinations thereof; and at least one glassy block comprising a second polymerized monovinyl aromatic monomer.4. The pressure sensitive adhesive according to claim 3 , wherein the second block copolymer is a ...

SELF-ADHESION-TYPE ADHESIVE TAPE

The purpose of the present invention is to improve a self-adhesion-type adhesive tape for banding branches, stems, vines, young shoots and the like of plants. 1. A self-adhesion-type adhesive tape , which comprises a tape-shaped backing and an adhesive layer formed by applying an adhesive to one surface of the backing , wherein the elastomer of the adhesive contains a mixture of 10 to 80 wt % of a styrene-isoprene-styrene block polymer having a styrene content of at least 14 wt % and at most 19 wt % , and 20 to 90 wt % of a styrene-isoprene-styrene block polymer having a styrene content of at least 25 wt % and at most 50 wt %; the self-adhesion-type adhesive tape is formed to satisfy the following (a) and (b) at the same time: both adhesive end portions of 20 mm of the test piece are put together and stuck to each other to form a loop, a metallic lifting bar having a diameter of 15 mm is inserted into the loop to lift up the loop; and', 'a weight of 1,000 g is suspended from the loop, the loop is kept for 24 hours under the conditions of a temperature of 23° C. and a relative humidity of 50%, and the number of test pieces from which the weight does not fall is at least 1/2, and, '(a) a self-adhesion-type adhesive tape having a width of 10 mm and a length of 100 mm is prepared, a self-adhesion-type adhesive tape with the same structure as the above self-adhesion-type adhesive tape having a length of 60 mm is stuck on the central 60 mm adhesive portion to make the portion non-adhesive while both end portions of 20 mm are left to be adhesive to prepare a test piece;'}(b) a weight of 500 g is suspended from the loop of the above (a), the loop is kept for 24 hours under the conditions of a temperature of 40° C. and a relative humidity of 75%, and the number of test pieces from which the weight does not fall is at least 1/2.2. The self-adhesion-type adhesive tape according to claim 1 , wherein the adhesive contains 4 to 150 parts by weight of a tackifier resin and 1 to ...

ADHESIVE COMPOSITION, ADHESIVE LAYER AND ADHESIVE SHEET

The present invention relates to an adhesive composition containing a base polymer and a moisture-curable component, wherein the base polymer contains a polymer having no functional group which reacts with the moisture-curable component, and a water content of the base polymer after storage at 25° C. and 50% RH for 24 hours is 0.1% by weight or less, and wherein the moisture-curable component is contained in an unreacted state, an adhesive layer made from the adhesive composition, and an adhesive sheet including the adhesive layer. 1. An adhesive composition comprising a base polymer and a moisture-curable component ,wherein the base polymer contains a polymer having no functional group which reacts with the moisture-curable component, and a water content of the base polymer after storage at 25° C. and 50% RH for 24 hours is 0.1% by weight or less, andwherein the moisture-curable component is contained in an unreacted state.2. The adhesive composition according to claim 1 , wherein the base polymer has a moisture permeability at 40° C. and 90% RH of 25 g/m.24 hr or less when forming a layer having a thickness of 100 μm.3. The adhesive composition according to claim 1 , wherein the base polymer contains a rubber-based polymer or an acrylic polymer.4. The adhesive composition according to claim 1 , wherein the moisture-curable component is capable of chemically bonding to an adherend.5. The adhesive composition according to claim 1 , wherein the moisture-curable component is an aliphatic isocyanate or an alicyclic isocyanate.6. The adhesive composition according to claim 1 , which further contains a water-absorbing material.7. The adhesive composition according to claim 6 , wherein the water-absorbing material is a water-absorbing polymer.8. An adhesive layer comprising the adhesive composition according to .9. An adhesive sheet comprising the adhesive layer according to .10. The adhesive sheet according to claim 9 , wherein the adhesive layer is formed on a substrate ...

BARRIER ADHESIVE MASS WITH POLYMER GETTER MATERIAL

The invention relates to a barrier adhesive mass having high breakthrough times for water and also providing a good adhesive performance. This is achieved by a barrier adhesive mass comprising at least one elastomer and at least one reactive resin, and is characterised in that the barrier adhesive mass comprises at least one polymer G containing at least two functions suitable for constructing a polymer, as well as at least two hydrolysable silyl groups. The invention also relates to an adhesive tape comprising a barrier adhesive mass according to the invention, and to the use of an adhesive mass of this type for sealing electronic assemblies. 1. A barrier adhesive compound , comprisingat least one elastomer andat least one reactive resin,wherein;the barrier adhesive compound comprises at least one polymer G, containing at least two functional groups capable of building a polymer and at least two hydrolyzable silyl groups.2. The barrier adhesive compound of claim 1 , wherein the at least one polymer G has a polyacrylate backbone.3. The barrier adhesive compound of claim 1 , wherein the functional groups capable of building a polymer are selected independently of one another claim 1 , and are selected from the group consisting of: vinyl groups claim 1 , (meth)acrylate groups claim 1 , hydroxy groups claim 1 , amino groups claim 1 , isocyanate groups claim 1 , cyclic ether groups claim 1 , and epoxy groups.4. The barrier adhesive compound of claim 1 , wherein the functional groups capable of building a polymer are selected independently from one another claim 1 , and are selected from: (meth)acrylate groups and epoxy groups.5. The barrier adhesive compound of claim 1 , wherein the functional groups capable of building a polymer comprise epoxycycloalkyl groups.6. The barrier adhesive compound claim 1 , wherein the hydrolyzable silyl groups correspond to formula (I){'br': None, 'sup': 1', '2, 'sub': x', '3-x, '—Si(OR)R\u2003\u2003(I),'}in which:{'sup': '1', 'Ris a ...

SYNTHETIC RAW ELASTOMERIC COMPOSITIONS IN FREE-FLOWING PELLET FORM AND PROCESS FOR OBTAINING THE SAME

A raw elastomeric composition in free-flowing pellet form is described, which comprises a raw elastomer with molecular weight from 50,000 to 400,000 Da, and an anti-block agent comprising inorganic fillers, capable of forming emulsions in water. Likewise, a process for obtaining said raw elastomeric compositions in free-flowing pellet form, comprising the steps of: a) polymerizing at least one monomer through solution polymerization in order to obtain elastomer crumb; b) forming an aqueous suspension of the elastomer crumbs; c) dewatering the aqueous suspension; d) adding an anti-block agent comprising inorganic fillers capable of forming emulsions in water; e) drying the dewatered suspension; and f) pelletizing the elastomer to form a raw elastomeric composition in free-flowing pellets form. The raw elastomeric composition in free-flowing pellets form thus obtained can be used as an adhesive composition, in asphalt modification and in asphalt emulsions. 1. An adhesive composition comprising:a) a raw elastomer with molecular weight from 50,000 to 400,000 Da; and,b) from 1 to 15% by total weight of an anti-block agent comprising inorganic fillers, capable of forming emulsions in water, wherein the anti-block agent is not applied as an outer layer;and wherein the adhesive composition has adhesive properties above the minimum parameters required for application as adhesive.2. The adhesive composition of claim 1 , wherein the elastomer is selected between Solution-SBR claim 1 , Emulsion-SBR claim 1 , SB di-block copolymers and tapered triblock copolymers.3. The adhesive composition of claim 2 , wherein the elastomer is a styrene—butadiene copolymer with butadiene content higher than 60% weight/weight.4. The adhesive composition of claim 1 , wherein the inorganic fillers contained in the anti-block agent are selected from the group comprising metallic carbonates claim 1 , metallic sulfates claim 1 , metallic oxides claim 1 , metallic hydroxides claim 1 , metallic ...

DETACHABLE ADHESIVE STRIP

The invention relates to an adhesive film strip comprising at least two, particularly three, layers, which adhesive film strip can be detached without residues and nondestructively by expansive stretching substantially in the adhesion plane, with a carrier on which a first external adhesive compound layer is present on at least one side, wherein the adhesive compound layer consists of adhesive compound formed on the basis of vinyl aromatic block copolymers and adhesive resins, wherein at least 75% of the resin (relative to the overall resin content) is selected with a DACP (diacetone alcohol cloud point) of greater than −20° C., preferably greater than 0° C., and the carrier has at least one layer made from a polyurethane with an elongation at break of at least 100% and a restoring power of more than 50%. A nonpolar hydrocarbon resin or a polyterpene resin is particularly used as the tackifier for the adhesive compound(s). 1. A pressure-sensitive adhesive film strip comprising at least two , which can be detached again without leaving a residue and without causing damage by expansive stretching substantially in the adhesion plane , having a carrier on which a first , outer adhesive composition layer is present at least on one side , whereinthe adhesive composition layer comprises an adhesive composition which is based on vinyl aromatic block copolymers and adhesive resins, wherein at least 75% (based on the total amount of resin) of the resin is chosen with a DACP (diacetone alcohol cloud point) of greater than −20° C., andthe carrier has at least one layer which comprises a polyurethane having an elongation at break of at least 100% and a resilience of over 50%.2. The pressure-sensitive adhesive film strip as claimed in claim 1 ,whereinthe carrier is provided on both sides with an adhesive composition layer, wherein the second adhesive composition layer is optionally likewise based on vinyl aromatic block copolymers and adhesive resins.3. The pressure-sensitive ...

ADHESIVE COMPOUNDS CONTAINING GETTER MATERIALS THAT CAN BE ACTIVATED

An adhesive comprising a getter material and optionally a solvent comprising a catalyst activatable by means of an external stimulus for the reaction of the getter material with a permeate can tolerate brief contact with permeates such as moisture in particular before user application, without any significant impairment of getter capacity. 1. Adhesive comprisinga getter material andoptionally a solvent,wherein the adhesive comprises a catalyst activatable by means of an external stimulus for the reaction of the getter material with a permeate.2. Adhesive according to claim 1 , wherein the permeate is water.3. Adhesive according to claim 1 , wherein the getter is present in an amount of at least 2% by weight.4. Adhesive according to claim 1 , wherein the amount of catalyst is less than 5% by weight.5. Adhesive according to claim 1 , wherein the external stimulus is UV radiation claim 1 , a temperature change claim 1 , microwave radiation or visible light.6. Adhesive according to claim 1 , wherein the catalyst activatable by an external stimulus is a latent acid or a latent base.7. Adhesive according to claim 1 , wherein the adhesive comprises an adhesive base composed ofat least one polymer, andat least one tackifying resin.8. Adhesive according to claim 7 , wherein the adhesive base further comprises at least one reactive resin having at least one curable group.9. Adhesive according to claim 7 , wherein the adhesive is a barrier adhesive claim 7 , and the adhesive base claim 7 , if a reactive resin is present claim 7 , has a water vapor permeation rate after curing of less than 100 g/md.10. Adhesive according to claim 1 , wherein the getter material is at least one compound selected from the group consisting of ethoxysilanes.11. Adhesive according to claim 10 , wherein the ethoxysilane additionally comprises at least one polymerizable group.12. Adhesive according to claim 1 , wherein the catalyst is a latent acid or a latent base.13. Adhesive according to claim 8 , ...

MOISTURE BARRIER MATERIAL

A moisture barrier material including a carrier, an adhesive layer formed on at least one surface of the carrier, and a release treated liner, wherein the moisture barrier material has a non-planar shape. 1. A moisture barrier material comprising a carrier , an adhesive layer formed on at least one surface of the carrier , and a liner , wherein the moisture barrier material has a non-planar shape.2. The moisture barrier material according to claim 1 , wherein the carrier is a polyurethane film.3. The moisture barrier material according to claim 2 , wherein the polyurethane film is a polyester-based polyurethane film.4. The moisture barrier material according to claim 1 , wherein the adhesive is a synthetic rubber adhesive.5. The moisture barrier material according to claim 2 , wherein the adhesive is a styrene-based rubber adhesive.6. The moisture barrier material according to claim 1 , wherein the adhesive is a natural rubber adhesive.7. The moisture barrier material according to claim 1 , wherein the adhesive layer comprises a flame-retardant at a content of less than 5 wt % of the whole moisture barrier.8. The moisture barrier according to claim 1 , wherein the liner is polyvinyl chloride.9. The moisture barrier according to claim 1 , which has a water vapor transmission rate of not more than 0.00006355 g/mm·day.10. The moisture barrier material according to claim 1 , which shows a burning time of not more than 15 sec claim 1 , a burning length of not more than 203 mm claim 1 , and a burning time of a fallen burnt material of not more than 5 sec claim 1 , in a flammability test.11. The moisture barrier material according to claim 1 , which shows a burning time of not more than 5 sec claim 1 , a burning length of not more than 127 mm claim 1 , and a burning time of a fallen burnt material of not more than 0.5 sec claim 1 , in a flammability test.12. A method for manufacturing a moisture barrier material comprisingmeasuring parameters of a surface to be covered and ...

ASPHALT COMPOSITIONS AND METHODS OF MAKING SAME

A coupled block copolymer composition with a combination of high viscosity at manufacturing, finishing and handling conditions, low viscosity at asphalt blending conditions and suitable viscosity stability is provided for use in asphalt compositions. The composition comprises: (i) a diblock copolymer, (ii) at least a linear triblock copolymer having a peak molecular weight that is 1.5 to 3.0 times the peak molecular weight of the diblock copolymer, and (iii) at least a multiarm coupled block copolymer having a peak molecular weight that is 1.5 to 9.0 times the peak molecular weight of the diblock copolymer, and mixtures thereof. The block copolymer composition is characterized as having a melt viscosity at 110° C. or less of greater than 2.0E7 Poise and a coupling efficiency after 24 hours at 180° C. is less than 25%. 1. A coupled block copolymer composition comprising: (i) a diblock copolymer comprising one block of a monovinylaromatic hydrocarbon and one block of a conjugated diene having a peak molecular weight from 30 ,000 to 78 ,000 , each block copolymer has a vinyl content from 8 to 80 mol percent based on the number of repeat monomer units in the conjugated diene block , (ii) a linear triblock copolymer having a peak molecular weight that is 1.5 to 3.0 times the peak molecular weight of the diblock copolymer , and (iii) a multiarm coupled block copolymer having a peak molecular weight that is 1.5 to 9.0 times the peak molecular weight of the diblock copolymer ,wherein the composition has a sufficient coupling efficiency to have a melt viscosity at less than 110° C. of greater than 2.0E7 Poise;wherein the composition is prepared by coupling a diblock copolymer with a coupling agent such that the composition decouples at a temperature at or above180° C. and after 24 hours for a coupling efficiency of less than 25%.2. The coupled block copolymer composition of claim 1 , wherein the multiarm coupled block copolymer is present in an amount of less than 5 wt. % of ...

RESIN COMPOSITION, ADHESIVE LAYER, AND CIRCUIT BOARD UTILIZING SAME

A resin having thermal conductivity comprises a styrene-butadiene-styrene block copolymer in 35 to 85 parts by weight, a styrene-ethylene-butene-styrene block copolymer in 5 to 65 parts by weight, a polyphenylene ether in 3 to 35 parts by weight; and a dendritic acrylate oligomer in 3 to 45 parts by weight. An adhesive layer and a circuit board using the resin composition are also described.

HEAT ACTIVATED PRESSURE SENSITIVE ADHESIVE

A composition having three components. The first component is from 20 to 80 wt % of a styrene-diene block copolymer having from 10-30 wt % polymerized units of styrene, wherein the block copolymer is present as a dispersion of copolymer in water, and the dispersion contains less than 5 wt % organic solvent based on total dispersion weight. The second component is from 0.5 to 20 wt % of a plasticizer. The third component is from 20 to 80 wt % of a tackifier. 1. A composition comprising: (a) from 20 to 80 dry wt % of a styrene-diene block copolymer having from 10-30 wt % polymerized units of styrene , wherein the block copolymer is present as a dispersion of copolymer in water , and said dispersion contains less than 5 wt % organic solvent based on total dispersion weight; (b) from 0.5 to 20 dry wt % of a plasticizer; and (c) from 20 to 80 dry wt % of a tackifier.2. The composition of in which Hoy Δδ solubility parameter for the plasticizer and polystyrene is from 2.5 to 30 (MJ/m).3. The composition of in which the tackifier comprises a rosin ester resin claim 2 , a non-hydrogenated aliphatic Cresin claim 2 , a hydrogenated aliphatic Cresin claim 2 , an aromatic modified Cresin claim 2 , a terpene resin claim 2 , a hydrogenated Cresin claim 2 , or combinations thereof.4. The composition of in which the styrene-diene block copolymer has 10-70 wt % diblock content and 30-90 wt % triblock content and the dispersion of copolymer in water comprises a dispersant selected from the group consisting of C-Caliphatic carboxylic acids and olefin-acrylic acid copolymers.5. The composition of in which the tackifier has a softening point from 65 to 180° C.6. The composition of in which the composition comprises: (a) from 25 to 65 dry wt % of the copolymer; (b) from 4 to 15 dry wt % of the plasticizer; and (c) from 25 to 70 dry wt % of the tackifier.7. The composition of in which the plasticizer is amorphous and has a softening point from 50-150° C.8. A method for preparing a heat- ...

POST-CURABLE RUBBER-BASED PRESSURE-SENSITIVE ADHESIVE

The present disclosure is directed to a curable precursor of a pressure sensitive adhesive comprising a) a (co)polymeric material comprising a rubber-based elastomeric material; b) a polyfunctional aziridine curing agent; and c) an acid generating agent. The present disclosure is also directed to a method of manufacturing such pressure sensitive adhesives and uses thereof. 1. A curable precursor of a pressure sensitive adhesive comprising:a) a (co)polymeric material comprising a rubber-based elastomeric material;b) a polyfunctional aziridine curing agent; andc) an acid generating agent.2. A curable precursor according to claim 1 , wherein the rubber-based elastomeric material is selected from the group consisting of natural rubbers claim 1 , synthetic rubbers claim 1 , thermoplastic elastomeric materials claim 1 , non-thermoplastic elastomeric materials claim 1 , thermoplastic hydrocarbon elastomeric materials claim 1 , non-thermoplastic hydrocarbon elastomeric materials claim 1 , and any combinations or mixtures thereof.3. A curable precursor according to claim 1 , wherein the rubber-based elastomeric material is selected from the group consisting of halogenated butyl rubbers; halogenated isobutylene-isoprene copolymers; bromo-isobutylene-isoprene copolymers; chloro-isobutylene-isoprene copolymers; block copolymers; olefinic block copolymers; butyl rubbers; synthetic polyisoprene; ethylene-octylene rubbers; ethylene-propylene rubbers; ethylene-propylene random copolymers; ethylene-propylene-diene monomer rubbers; polyisobutylenes; poly(alpha-olefin); ethylene-alpha-olefin copolymers; ethylene-alpha-olefin block copolymers; styrenic block copolymers; styrene-isoprene-styrene block copolymers; styrene-butadiene-styrene block copolymers; styrene-ethylene/butadiene-styrene block copolymers; styrene-ethylene/propylene-styrene block copolymers; styrene-butadiene random copolymers; olefinic polymers and copolymers; ethylene-propylene random copolymers; ethylene-propylene- ...

MULTILAYER PRESSURE-SENSITIVE ADHESIVE ASSEMBLY HAVING LOW VOC CHARACTERISTICS

A multilayer pressure sensitive adhesive assembly comprising a polymeric foam layer and a first pressure sensitive adhesive layer adjacent to the polymeric foam layer. The polymeric foam comprises a plurality of activated carbon particles distributed therein, and the first pressure sensitive adhesive comprises: a linear block copolymer having the formula M-(G), wherein M is a rubbery block; each G is a glassy block comprising a polymerized monovinyl aromatic monomer; and p is 1 or 2; at least one hydrocarbon tackifier; and a (meth)acrylate copolymer having a Tg higher than 25° C. and a weight average molecular weight (Mw) comprised between 1000 and 100.000 Daltons, and comprising: (meth)acrylic acid ester monomer units having a Tg higher than 25° C. when homopolymerized. 1. A multilayer pressure sensitive adhesive assembly comprising a polymeric foam layer and a first pressure sensitive adhesive layer adjacent to the polymeric foam layer , wherein the polymeric foam comprises a plurality of activated carbon particles distributed therein , and wherein the first pressure sensitive adhesive comprises:{'sub': 'p', 'a) a linear block copolymer having the formula M-(G), wherein M is a rubbery block comprising a polymerized olefin, a polymerized conjugated diene, a hydrogenated derivative of a polymerized conjugated diene, or any combinations thereof; wherein each G is a glassy block comprising a polymerized monovinyl aromatic monomer; and wherein p is 1 or 2;'}b) at least one hydrocarbon tackifier; (i) (meth)acrylic acid ester monomer units having a Tg higher than 25° C. when homopolymerized; and', '(ii) optionally, monofunctional ethylenically unsaturated comonomer units;, 'c) a (meth)acrylate copolymer having a Tg higher than 25° C. and a weight average molecular weight (Mw) comprised between 1000 and 100.000 Daltons, and comprising{'sub': 'q', 'claim-text': (i) S represents an arm of the multi-arm block copolymer and each arm independently has the formula G-N,', '(ii) ...

GEL COMPOSITION AND MANUFACTURING METHOD THEREOF, TEMPERED GLASS PROTECTIVE FILM AND ELECTRONIC DEVICE

A gel composition, a manufacturing method thereof, a tempered glass protective film and an electronic device are provided. The gel composition is processed by mixing a thermoplastic elastomer and oil, heating and stirring, using mixer to plastify and performing vacuum defoaming. The gel composition of the present disclosure is soft, and of which the hardness is smaller than 10 and the elastic modulus is about 1.2 Gpa. The gel composition can be completely filled in between the tempered glass and the electronic visual display after applying the tempered glass on the electronic visual display, so as to achieve the complete adherence without any air bubbles. 1. A gel composition for bonding a tempered glass to an electronic visual display , comprising a linear block copolymer and an adhesion enhancer;{'sup': 4', '5, 'wherein the weight-average molecular weight of the linear block copolymer is 5×10to 5×10; the linear block copolymer has a styrene-butadiene-styrene (SBS) block structure, wherein S is from 5% to 30% by weight of a block of polystyrene, B is from 70% to 95% by weight of a block of polybutadiene; the weight ratio between the linear block copolymer and the adhesion enhancer is from 1:40 to 1:50; and'}wherein, a Rockwell hardness of the gel composition is smaller than 10, and an elastic modulus thereof is from 0.8 to 1.5. Gpa.2. The gel composition according to claim 1 , wherein the linear block copolymer is selected from at least one of a group consisting of SIS claim 1 , SBS claim 1 , SEBS and SEPS claim 1 , and/or the adhesion enhancer is selected from at least one of a group consisting of white oil claim 1 , naphthenic oil and hydrogenated naphthenic oil.3. The gel composition according to claim 1 , further including a butadiene unit and an additive.4. The gel composition according to claim 3 , wherein the additive is an antioxidant and/or an anti-ultraviolet agent.5. The gel composition according to claim 1 , wherein a mass percentage of the linear block ...

RESIN COMPOSITION, ADHESIVE FILM, AND CIRCUIT BOARD USING THE SAME

A resin composition for a PCB includes a styrene-butadiene-styrene block copolymer in an amount from 95 to 100 parts by weight, a modified porous spheres of silicon oxide in an amount from 1 to 50 parts by weight, and a liquid polybutadiene in an amount from 5 to 50 parts by weight. The styrene-butadiene-styrene block copolymer and the liquid polybutadiene both include vinyl groups on the molecular side chains. The modified porous spheres of silicon oxide also include vinyl groups. An adhesive film and a circuit board using the resin composition are also provided.

A CURABLE COMPOSITION, A PRESSURE SENSITIVE ADHESIVE, AN ADHESIVE TAPE, AND AN ADHESIVE ARTICLE

The present invention provides a curable composition, a pressure sensitive adhesive, an adhesive tape, and an adhesive product, belonging to the technical field of pressure sensitive adhesives and can solve the problem of the poor drop protection performance of the existing pressure sensitive adhesives. The curable composition of the present invention comprises: monomer components, comprising at least two polymerizable monomers, wherein the polymerizable monomers comprise non-tertiary alcohol (meth)acrylate monomers, and acid-functional non-ester unsaturated monomers having at least one olefinic bond; at least one block copolymer, belonging to elastomers and comprising at least two blocks A located respectively on both ends and at least one block B located in the middle, wherein the block A is formed via polymerization of methacrylate monomers, and the block B is formed via polymerization of acrylate monomers. 1. A curable composition , comprising:a monomer component comprising at least two polymerizable monomers which include a (meth)acrylate monomer of non-tertiary alcohol, and an acid functionalized non-ester unsaturated monomer having at least one olefinic bond; andat least a block copolymer belonging to elastomer which comprises at least two A blocks separately at the two ends thereof, and at least a B block in the middle thereof; wherein the A block is formed by a polymerization of methacrylate monomers, and the B block is formed by a polymerization of acrylate monomers.2. The curable composition according to claim 1 , wherein the block copolymer is a triblock copolymer having a structure of A block-B block-A block.3. The curable composition according to claim 1 , wherein the A block is formed by a polymerization of alkyl methacrylate monomers; and the B block is formed by a polymerization of alkyl acrylate monomers.4. The curable composition according to claim 3 , wherein the alkyl methacrylate monomer is a methyl methacrylate monomer; and the alkyl acrylate ...

Contact adhesive composition based on ethylene/butylenes or ethylene/propylene block copolymers, useful for production of adhesive film strips which can be peeled off without residues and without destruction

A contact adhesive composition based on styrene block copolymers containing at least one ethylene/butylene or ethylene/propylene block, a second polystyrene block of radial, star-shaped, or linear structure, and an adhesive resin miscible with elastomer phases. A contact adhesive composition based on styrene block copolymers contains: (a) a first styrene block copolymer containing at least one ethylene/butylenes- or ethylene/propylene block, at least two spatially separated, preferably linked to such a polystyrene block so that one or more polymer blocks is based on 1,3-unsaturated dienes, where the polystyrene block content is 12.5-37.5 wt.% and the content of polymer blocks based on 1,3-unsaturated dienes is 15-55 wt.%; (b) a second polystyrene block of radial, star-shaped or linear structure containing at least one ethylene/butylenes- or ethylene/propylene block, and at least two spatially separated polystyrene blocks, preferably linked to the ethylene/butylenes or ethylene/propylene blocks, where the polystyrene block content is 10-25 wt.%; and (c) an adhesive resin mixed with elastomer phases formed from (a) and (b).

HOT FUSION STRUCTURAL ADHESIVE FOR THE MANUFACTURE OF DISPOSABLE PRODUCTS AND METHOD TO ADHER A SUBSTRATE WITH SUCH ADHESIVE

Adhesivo estructural de fusion en caliente para productos descartables tales como panales, toallas higiénicas, indumentaria hospitalaria, camisonespara cirugía, y similares. Este adhesivo ofrece excelentes características respecto de sus pares disponibles en la actualidad. Esta composicion adhesivaestructural de fusion en caliente comprende una mezcla de un copolímero en bloque de estirenoisopreno que contiene al menos aproximadamente 25% deestireno y un copolímero en bloque de estireno-butadieno que contiene al menos aproximadamente 25% de estireno, como mínimo una resina incrementadora de lapegajosidad compatible y al menos un plastificante. El adhesivo de la invencion posee una viscosidad que no supera aproximadamente 25.000 mPas aaproximadamente 140 grados C, una temperatura de falla en la adhesion bajo esfuerzo cortante de por lo menos aproximadamente 60 grados C, y un tiempo defalla durante un esfuerzo cortante estático no inferior a aproximadamente 25 horas a aproximadamente 23 grados C. Proceso para pegar un primer sustratocompuesto por una poliolefina o un sustrato no tejido a por lo menos un segundo sustrato integrado por un material elástico, una poliolefina, unaespuma o material no tejido. Structural hot melt adhesive for disposable products such as honeycombs, sanitary napkins, hospital clothing, nightgowns for surgery, and the like. This adhesive offers excellent characteristics with respect to its currently available pairs. This hot melt structural adhesive composition comprises a mixture of a styrene block copolymer containing at least about 25% styrene and a styrene-butadiene block copolymer containing at least about 25% styrene, at least one resin increasing resin. The compatible stickiness and at least one plasticizer. The adhesive of the invention has a viscosity that does not exceed approximately 25,000 mPas at approximately 140 degrees C, a temperature of adhesion failure under shear of at least approximately 60 degrees C, and a time deflates ...

Hot melt pressure sensitive adhesive designed for use on high density spun polyolefin film

This invention relates to an envelope coated with a hot melt pressure sensitive adhesive composition preferably comprising a) from about 10% to about 40% by weight in the adhesive of at least one block copolymer selected from the group consisting of styrene-isoprene-styrene block copolymers, styrene-butadiene-styrene block copolymers and mixtures thereof wherein the block copolymers comprise from about 15% to about 35% styrene by weight in the copolymer and diblock contents from about 0% to about 90% by weight in the copolymer; and b) from about 60% to about 90% by weight in the adhesive of a modifier selected from the group consisting of solid tackifying resins, liquid tackifying resins, liquid elastomers and mixtures thereof. The invention further relates to an improved oil-free pressure sensitive adhesive that is low in viscosity and provides a destructive bond and resists deformation of high density spun polyolefin materials.

Radial styrene-isoprene-styrene based hot melt pressure sensitive adhesive

A hot melt adhesive composition comprising from about 5% to about 15% by weight of at least one radial styrene-isoprene-styrene block copolymer having the general configuration (pS--pI--pB) n X wherein n is a number greater than 2, said block copolymer having a molecular weight from about 90,000 to about 380,000, and preferably from about 100,000 to about 250,000, and a styrene content from about 15% to about 35% by weight, and preferably from about 20% to about 30% by weight; up to about 10% of a compatible polymer, wherein the total polymer content does not exceed 15%; from about 30% to about 60% by weight of at least one compatible tackifying resin; from about 20% to about 40% by weight of at least one compatible plasticizer; and from about 0.1% to about 2% by weight stabilizer.

Styrene-Butadiene-Based Binders and Methods of Preparing and Using Same

Styrene-butadiene-based aqueous dispersions and methods for their preparation are described herein. The aqueous dispersions include water and a binder comprising a styrene-butadiene-based copolymer and an epoxysilane. Further described herein are binder formulations and methods for their preparation and use.

Styrene-butadiene-based binders and methods of preparing and using same

Styrene-butadiene-based aqueous dispersions and methods for their preparation are described herein. The aqueous dispersions include water and a binder comprising a styrene-butadiene-based copolymer and an epoxysilane. Further described herein are binder formulations and methods for their preparation and use.

Method of preparing an adhesive for bonding wood

Heat activated pressure sensitive adhesive

FIELD: chemistry. SUBSTANCE: group of inventions refers to a composition for applying to a support containing three components and to a method for producing a heat activated adhesive. In the composition, the first component is a styrene-diene block copolymer containing 10-30 wt% of polymerized units of styrene contained in an amount of 20 up to 80 wt%, wherein the block copolymer is present as a dispersion of copolymer in water and the dispersion contains an organic solvent in an amount of less than 5 wt%, based on the total dispersion weight. Second component of the composition is a plasticizer contained in an amount of 0.5 up to 20 wt%. Third component is a tackifying agent contained in an amount of 20 up to 80 wt%. Method for producing a heat activated pressure sensitive adhesive comprises compositions of the invention as well as applying it to paper or plastic film. EFFECT: technical result achieved with the use of a group of inventions consists in the production of the heat activated pressure sensitive adhesive that has good adhesive ability and good blocking characteristics. 10 cl, 2 tbl, 8 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 661 568 C2 (51) МПК C09J 153/02 (2006.01) C09J 7/21 (2018.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C09J 109/06 (2018.02); C09J 7/35 (2018.02); C09J 153/02 (2018.02) (21)(22) Заявка: 2015127899, 02.12.2013 (24) Дата начала отсчета срока действия патента: Дата регистрации: 17.07.2018 11.12.2012 US 61/735,618 (43) Дата публикации заявки: 19.01.2017 Бюл. № 2 (56) Список документов, цитированных в отчете о поиске: US 2011293834 A1, 01.12.2011. JP (45) Опубликовано: 17.07.2018 Бюл. № 20 H06179856 A, 28.06.1994. WO 2007053405 A1, 10.05.2007. JP 4698521 B2, 08.06.2011. КАРДАШОВ Д.А., ПЕТРОВА А.П., Полимерные клеи, Москва, Химия, 1983, с. 31-38, 73. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.07.2015 (86) Заявка PCT: US 2013/072570 (02.12.2013) C 2 C 2 (73) ...

一种pvc地板用耐老化高持粘热熔压敏胶及其制备方法

本发明涉及一种PVC地板用耐老化高持粘热熔压敏胶及其制备方法，所述热熔压敏胶由包括以下组分及重量份含量的原料制备而成：热塑性弹性体30‑45份、氟改性硅树脂10‑20份、增粘树脂20‑35份、增塑剂5‑15份、抗氧化剂3‑8份以及交联剂1‑5份。与现有技术相比，本发明采用氟改性硅树脂与热塑性弹性体相复配，可有效提高材料体系的耐热性，而氟树脂成分又有利于降低胶体表面的表面能，赋予一定的自清洁性能，并有利于提高材料体系的耐老化性能，可进一步提高材料体系的耐高温及抗老化性能，并可改善材料体系的撕裂强度，制备工艺步骤简单，可控性好。

Hot melt adhesive composition

본 발명은 핫 멜트 접착제 조성물에 관한 것이다. 본 발명의 핫 멜트 접착제 조성물은, 저점도 특성을 유지함에 따라, 상대적으로 낮은 온도에서 용융 가공이 가능하여, 공정성을 개선할 수 있으면서도, 접착력 및 내열성이 우수하고, 특히, 경화 후 기계적 물성 역시 우수하여, 다양한 산업 분야에서 사용될 수 있다. The present invention relates to a hot melt adhesive composition. The hot-melt adhesive composition of the present invention maintains low viscosity properties and can be melt-processed at a relatively low temperature, thereby improving processability, while having excellent adhesion and heat resistance, and particularly, excellent mechanical properties after curing Therefore, it can be used in various industrial fields.

Radiation curable adhesive compositions comprising block copolymers having vinyl functionalized polydiene blocks

The invention is directed to a radiation curable adhesive composition comprising at least one vinyl modified block copolymer having a first polyvinyl aromatic block and a second polydiene block having vinyl functionality, and at least one tackifier. Optionally, the composition may comprise at least one second block copolymer that has not been vinyl modified, at least one platicizer, and at least one wax. The invention is also directed to a double-faced label formed from the composition and the method of producing said label.

New and improved pressure-sensitive adhesive and disposable diaper opening and closing system

一种覆膜纸箱胶

本发明属于热熔胶技术领域，具体涉及一种覆膜纸箱胶，由以下成分按质量比例配制而成：星型SIS，16‑20份；SBS，24‑30份；微晶蜡,1‑3份；聚乙烯蜡，1‑3份；增粘树脂，4‑7份；硅烷偶联剂，1‑2份；马来酸酐官能化SEBS，2‑3份；具体由以下成分按质量比例配制而成：星型SIS，18份；SBS，27份；微晶蜡,1份；聚乙烯蜡，2份；增粘树脂，5份；硅烷偶联剂，2份马来酸酐官能化SEBS，3份。本发明胶体主体材料选用弹性体，无毒环保，属于环保型热熔胶产品；胶体流动性好，耐温性能佳，固化速度快，开放时间短，拉丝现象少，操作性强，适用于覆膜纸箱（盒）粘贴工艺。

一种用于手术洞巾的专用热熔压敏胶及其制备方法

本发明公开了一种用于手术洞巾的专用热熔压敏胶，按重量份计，其制备原料包括：苯乙烯‑丁二烯‑苯乙烯嵌段共聚物10～20份、苯乙烯‑异戊二烯‑苯乙烯嵌段共聚物10～20份、增黏剂3～7份、分散剂1～3份、填料0.5～2份、抗氧化剂0.05～0.2份。该热熔压敏胶既能保证足够的初粘性，使手术洞巾牢固地贴在病患皮肤上，并且在手术过程中保持良好的持粘力，随着手术进行，粘性缓慢下降，当手术结束并从病人身上取下手术洞巾时，皮肤不会产生疼痛，减少了患者的不适感。

Hot melt adhesive composition

Radiation curable adhesive compositions comprising block copolymers having vinyl functionalized polydiene blocks

The invention is directed to a radiation curable adhesive composition comprising at least one vinyl modified block copolymer having a first polyvinyl aromatic block and a second polydiene block having vinyl functionality, and at least one tackifier. Optionally, the composition may comprises at least one second block copolymer that has not been vinyl modified, at least one platicizer, and at least one wax. The invention is also directed to a double-faced label formed from the composition and the method of producing said label.

Adhesive composition for a debondable self-adhesive label

Hot-melt pressure-sensitive adhesive (HMPSA) composition comprising: a) 25 to 50% of a blend of SBS and SB styrene block copolymers; b) 45 to 75% of compatible tackifying resins having a softening temperature of between 80 and 150° C.; and c) 0.5 to 5.5% of fatty acids, the hydrocarbon chain of which comprises 10 to 22 carbon atoms. Multilayer system comprising an HMPSA layer, a printable support layer and an adjacent protective layer. Corresponding self-adhesive label and process for recycling a labeled article with debonding of said label by immersing the article in a hot basic aqueous solution.

Adhesive composition for a debondable self-adhesive label

Hot-melt pressure-sensitive adhesive (HMPSA) composition is disclosed comprising: a) 25 to 50% of a blend of SBS and SB styrene block copolymers; b) 45 to 75% of compatible tackifying resins having a softening temperature of between 80 to 150° C.; and c) 0.5 to 5.5% of fatty acids, the hydrocarbon chain of which comprises 10 to 22 carbon atoms. Also disclosed are a multilayer system comprising an HMPSA layer, a printable support layer and an adjacent protective layer. A self-adhesive label and process for recycling a labeled article with debonding of said label by immersing the article in a hot basic aqueous solution are also disclosed.

Semi-interpenetrating polymer network structure type adhesive film improved heat resistance and manufacturing method of the same

본 발명에 따른 유사-상호침투 중합체 네트워크 구조의 고무 점착필름은 제1 스티렌 블록 공중합체 40~60중량%; 점착 부여 수지 35~5중량%; 및 다관능성 화합물, 광 또는 열 개시제 및 제2 스티렌 블록 공중합체를 함유하는 혼합물 1~10중량%를 포함할 수 있다. The rubber pressure-sensitive adhesive film of the pseudo-interpenetrating polymer network structure according to the present invention comprises 40 to 60% by weight of the first styrene block copolymer; 35 to 5% by weight of tackifying resin; And 1 to 10% by weight of a mixture containing a polyfunctional compound, a photo or thermal initiator, and a second styrene block copolymer.

ADHESIVE COMPOSITION FOR SELF-ADHESIVE DECOLLABLE LABEL

Adhesive composition, film laminate and product pouch or tube therefrom

An adhesive composition comprising a combination of a styrene-butadiene block copolymer, a cyclopentadiene-styrene resin and a random terpolymer of 1,3-pentadiene, a monocyclic terpene, and alpha methylstyrene. A flexible film laminate and product pouchor tube therefrom comprising two or more polymer film layers adhesively bonded together by means of a layer of the defined adhesive.

Hot-melt pressure sensitive adhesive composition having improved rheological properties

一种柔性线路板用高性能pvc防镀膜及其制备方法和应用

本发明属于保护膜领域，公开了一种柔性线路板用高性能PVC防镀膜及其制备方法和应用。该柔性线路板用高性能PVC防镀膜从上至下依次设置为离型纸层，橡胶型压敏胶层，底涂层以及PVC基材层。其可以代替传统的干膜工艺，简化了作业流程，提高了生产效率，节约了生产成本，避免显影剂、脱膜剂等化学试剂排放而污染环境。同时，由于本发明涉及的PVC保护膜的橡胶压敏胶层，具有耐酸碱，粘性可控，耐温性优良的特性，不会出现渗镀、残胶等不良现象，明显提高了产品良率。

Hot Melt Adhesive Composition

Non-curable rubber adhesive composition for touch screen panel and non-curable rubber adhesive film for touch screen panel using the same

본 발명은 스티렌-이소프렌-스티렌(SIS) 고무를 포함하는 터치스크린패널용 비경화성 고무계 점착제 조성물 및 이를 이용한 터치스크린패널용 비경화성 고무계 점착필름에 관한 것이다. The present invention relates to a non-curable rubber-based pressure-sensitive adhesive composition for a touch screen panel comprising styrene-isoprene-styrene (SIS) rubber and a non-curable rubber-based pressure-sensitive adhesive film for a touch screen panel using the same.

Intermediate softening point resin-based hot melt PSAs

An improved hot-melt pressure-sensitive adhesive (HMPSA) composition contains an elastomeric component, such as a blend of SIS and SB block copolymers, and a tackifying component comprising one or more intermediate softening point resins (ISPRs) having a ring and ball softening point of from 35 to 60° C. The improved adhesive compositions are characterized by reduced volatility, less bleed and staining tendencies, and improved overall adhesive performance. The invention also provides improved label constructions in which a release liner is coated with an HMPSA composition and laminated to a flexible facestock. Notably, even when low basis weight paper facestocks are used, the construction can be converted at high speeds.