СПОСОБ ПОЛУЧЕНИЯ ОТ МЯГКИХ ДО ПОЛУЖЕСТКИХ ПОЛИУРЕТАНОВЫХ ИНТЕГРАЛЬНЫХ ПЕНОПЛАСТОВ

Изобретение относится к вспененным полиуретановым формованным изделиям с уплотненной краевой зоной с заданной жесткостью и отчетливо выраженной более мягкой ячеистой сердцевиной. Описывается способ получения от мягких до полужестких полиуретановых интегральных пенопластов взаимодействием а) органических и/или модифицированных органических полиизоцианатов или их форполимеров с б) по меньшей мере одним полиольным компонентом с гидроксильным числом от 20 до 200 и функциональностью от 2 до 6, при необходимости в комбинации с в) полиольным компонентом с гидроксильным числом от 201 до 899 и функциональностью от 2 до 3, а также г) по меньшей мере одним компонентом, являющимся удлинителем цепи, с гидроксильным числом или аминным числом от 600 до 1850 и функциональностью от 2 до 4 в количестве от 3 до 20 мас.% относительно суммы количеств компонентов б) и в), и д) при необходимости, с известными добавками, активаторами и/или стабилизаторами, в присутствии 0,05-0,6 мас.% воды (относительно суммы ...

ПОЛИУРИТАНОВАЯ СИСТЕМА И СПОСОБ ПРОИЗВОДСТВА ВСПЕНЕННЫХ ОБУВНЫХ ИЗДЕЛИЙ НИЗКОЙ ПЛОТНОСТИ С ЦЕЛЬНОЙ ОБОЛОЧКОЙ

... 1. Жидкая полиуретановая реактивная система для производства обувных изделий с цельной оболочкой, включающей по меньшей мере один полиол, предназначенный для реакции с по меньшей мере одним изоцианатным форполимером, расширяющий агент, добавки, включающие катализатор и расширяемые микросферы, отличающаяся тем, что количество расширяемых микросфер находится в пределах от 1,0 до 30 вес.% в расчете на вес указанных полиола и присадок, а количество расширяющего агента находится в пределах от 0,15 до 3,5 вес.% в расчете на вес указанных полиола и присадок. 2. Полиуретановая система по п.1, отличающаяся тем, что упомянутым расширяющим агентом является вода. 3. Полиуретановая система по п.2, отличающаяся тем, что количество расширяемых микросфер находится в пределах от 1,5 до 20 вес.% в расчете на вес указанных полиола и добавок, а количество воды находится в пределах от 0,75 до 3,0 вес.% в расчете на вес указанных полиола и добавок. 4. Полиуретановая система по п.3, отличающаяся тем, что количество ...

Verfahren zur Herstellung von Schaumstoffen

VERFAHREN ZUR HERSTELLUNG VON FORMKOERPERN, HIERZU GEEIGNETE GEMISCHE VON GEGENUEBER ISOCYANATGRUPPEN REAKTIONSFAEHIGEN VERBINDUNGEN UND DIE NACH DEM VERFAHREN ERHALTENEN FORMKOERPER.

Elastomeric moulded bodies (I) based on polyurethane or polyurea, of density 0.8-1.4 g/cm3, are mfd. by reaction in a closed mould of (a) an isocyanate component contg. at least one aromatic di- or poly-isocyanate (II), (b) a mixt. of cpds. contg. NCO-reactive gps. and (c) usual additives, etc. as required. (b) contains cpds. of mol.wt. 1800-12000 contg. at least 2 NCO-reactive gps. (III) and opt. diamine(s) with two prim. or sec. aromatic amino gps. of mol.wt. 108-400 (IV). (a)-(c) are processed by one-shot reaction injection moulding, maintaining an NCO no. of 70-130. The novelty is that (b) also contains reaction prod(s). (V) of polyepoxide(s) of equiv. wt. 76-550 contg. at least 2 epoxide gps. with diamine(s) (IV) (at least 1 mol/mol), the amt. of (V) corresp. to 0.5-25 wt.% polyepoxide (w.r.t. total (b)).

Herstellung zellularer Polymere und ihre Zusammensetzung

Visco-elastic polyurethane-foam material, useful for the production of integral foamer of medical padding and editions, comprises polyether polyols, diphenyl methane diisocyanate, propellant and optionally catalysts and/or additives

Visco-elastic polyurethane-foam material (I) preferably for the production of integral foamer of medical padding and editions, comprises polyether polyols; diphenyl methane diisocyanate and/or modified diphenylmethane diisocyanate and/or their mixtures with other polyisocyanate; a propellant in the form of a volatile hydrocarbon; and optionally catalysts and/or usual additives. Visco-elastic polyurethane-foam material (I) preferably for the production of integral foamer of medical padding and editions, comprises polyether polyols; diphenyl methane diisocyanate and/or modified diphenylmethane diisocyanate and/or their mixtures with other polyisocyanate; a propellant in the form of a volatile hydrocarbon; and optionally catalysts and/or usual additives, where the mixing proportion (wt.%) of polyetherpolyol and propellant to isocyanate amounts to 100:25-100:30 and comprises polyetherpolyol (100 wt.%) and propellant (8-3 wt.%) from polyetherpolyol (92-97 wt.%) and (I) exhibits a hardness of ...

FLAMMSCHUTZMITTEL FÜR POLYURETHANE, EIN VERFAHREN ZUR HERSTELLUNG FLAMMGESCHÜTZTER POLYURETHAN-KUNSTSTOFFE SOWIE DEREN VERWENDUNG IM SCHIENENFAHRZEUGBAU

Foggingarme Katalysatoren für die Herstellung von Polyurethanen

Verfahren zur Herstellung von Polyurethan- oder Polyharnstoff-Schaumstoff

A process for the production of foamed polyurethanes

In a process for the production of a foamed polyurethane, a polyhydroxy compound (which may also contain carboxyl groups) is reacted with a polyisocyanate in the presence of a metal catalyst and the reaction mixture simultaneously or subsequently foamed, if necessary or if desired (the latter case being when carboxyl groups are also present) with water. The metal catalyst is a salt, alcoholate or phenolate of tetravalent tin and a carboxylic acid, alcohol or phenol, each of which contains at least one basic tertiary nitrogen atom (which may be part of a heterocyclic ring) in the molecule, or is an organic chelate of tetravalent tin which contains at least one basic tertiary nitrogen atom (which may be part of a heterocyclic ring) in the molecule, each tin atom in the catalyst being attached to an organic radical by at least one carbon-tin bond. Specified polyhydroxy compounds are alkylene oxide polymers, dihydroxy naphthalenes, polyethers and addition products of alkylene oxides with dior ...

POLYURETHANE-POLYUREAS

... 1,203,424. Polyurethane-polyureas. UGINE KUHLMANN. 22 Nov., 1967 [23 Nov., 1966], No. 53152/67. Addition to 1,160,042. Headings C3C and C3R. Solid-flexible polyurethane-polyureas having a cellular portion and a compact elastomeric skin of at least 0.5 mm. thickness and representing 0.1 to 90 volume per cent of the polyurethanepolyurea, and being free of a transition zone of different density separating the cellular portion and the elastomeric skin are prepared by (1) mixing a polyisocyanate, a polyether or polyester polyol having an equivalent molecular weight of more than 1000 at least one "quickacting diamine" (which is defined as being an aromatic diamine containing no negative group in the o-position to the amino group or a primary or secondary aliphatic amine), a catalyst for the polyurethane-polyurea reaction and a non-aqueous blowing agent, the diamine having been previously dissolved in the polyol prior to mixing, (2) pouring the resulting mixture into a mould, the components and ...

WATER-BLOWN INTEGRAL SKIN POLYURETHANE FOAMS HAVING A SKIN WITH ABRASION RESISTANCE

Process for moulding an integral skin foam and a polyurethane formulation for moulding the same

A semi-rigid integral skin foam having a low foamed integral skin layer and a highly foamed core is molded from a polyurethane formulation injected into a mold cavity having a reduced pressure of 400 Torr or below. The formulation comprises a polyol component, an isocyanate component, and at least one substance selected from among formic acid, an amine salt thereof and an amine salt of boric acid, while not containing any fluorochlorohydrocarbons such as Freons. After injection, the polyurethane formulation is allowed to foam to fill the cavity to form the integral skin foam. Closable split moulds for the reaction injection moulding of integral-skin-foam-coverings for steering wheels are disclosed. The moulds include a vacuum chamber 11, a pump to evacuate the chamber 11, a vent hole 5 and a formulation injection mechanism 21 (figure 4, 9). A mould with a vent hole may be replaced with a porous mould.

Improvements in or relating to a Method of Making Moulded Polyurethane Foam having a Non-Cellular Surface Layer

... 1,183,224. Polyurethane foams. SOC. QUILLERY. 27 Feb., 1967 [2 March, 1966], No. 9155/67. Headings C3C and C3R. Moulded polyurethane foams having a compact surface and a cellular internal structure and having an overall density between 50 and 500 g/dm.3 are prepared by mixing a polyisocyanate containing at least two NCO radicals, catalysts, a blowing agent other than water and polyfunctional compounds comprising 5 to 40% on an equivalent basis of the total NCO radicals, of at least one long chain component having an equivalent weight per active hydrogen atom greater than 750 and at least one short chain component having an equivalent weight per active hydrogen atom of less than 200 and being present in an amount corresponding to the remaining 95 to 60% on an equivalent basis of the total NCO radicals, the proportion of water present being less than 25% on an equivalent basis of the total NCO radicals, the ratio of the long chain component to the short chain component being such ...

RIGID POLYURETHANE FOAM COTAINING POLYSTER RESIDUE DEGESTIION PRODUCT

PROCEDURE FOR THE PRODUCTION OF KALTHAERTENDEN, FLEXIBLE ONE, GROUPS OF URETHANES EXHIBITING FOAM MATERIALS

VERFAHREN ZUM HERSTELLEN VON POLYURETHAN MIT INTEGRALHAUT

PU INTEGRAL FOAM ARTICLE

VERFAHREN ZUR HERSTELLUNG VON SCHAUMSTOFFEN

VERFAHREN ZUR HERSTELLUNG VON POLYURETHAN MIT EINER INTEGRALHAUT

CO2-GEBLASENE INTEGRAL FOAM.

LITHIUM SALTS ABSTENTION FLEXIBLE ONE OF POLYURETHAN-FOAM MATERIALS, YOUR MANUFACTURING PROCESS AND POLYOLE COMPOSITION FOR IT

POLYURETHANPRÄPOLYMER COMPOSITIONS, FROM IT MANUFACTURE FOAM AND PROCEDURE FOR YOUR PRODUCTION

Procedure for the production of elastomerer polyurethan-foam materials of high density

POLYURETHANE ELASTIC ARTICLES

BLENDS OF ALKYLENE GLYCOLS AND RELATIVELY HIGH EQUIVALENT WEIGHT ACTIVE HYDROGEN COMPOUNDS CONTAINING MULTIPURPOSE ADDITIVES AND PROCESS FOR PREPARING THE SAME

Molded polyurethane foams

POLYURETHANE FOAM

MULTI-LAYERED FIRE-RESISTANT PLASTIC MATERIAL

The invention relates to multi-layered plastic materials, to a method for the production thereof and to the use thereof. The invention more particularly relates to a multi-layered plastic material having a bending elasticity modulus of > 250 N/mm2, comprising a polyurethane carrier layer containing red phosphorus and/or melamine and/or melamine derivatives, and comprising at least one polyurethane cover layer that contains expanded graphite and is bonded to the surface of said carrier layer.

HIGH DENSITY URETHANE FOAM FOR RIM

A highly reactive urethane foam for RIM t? produce thin-sectioned automobile trim components having good high temperature sag performance is a quasi prepolymer system in which the polyol side is based on a relatively high molecular weight polyol combined with a known highly reactive unhindered aromatic polyamine chain extender/cross linker and with conventional short chain diols/triol extenders/cross linkers and catalysts.

PROCESS FOR THE PREPARATION OF MOLDED ARTICLES HAVING A CELLULAR CORE AND A DENSER PERIPHERAL ZONE WHICH EXHIBIT IMPROVED DEMOLDING CHARACTERISTICS

PROCESS FOR THE PREPARATION OF MOLDED ARTICLES HAVING A CELLULAR CORE AND A DENSER PERIPHERAL ZONE WHICH EXHIBIT IMPROVED DEMOLDING CHARACTERISTICS This invention relates to a process for the preparation of molded articles having a cellular core and a denser peripheral zone using polyisocyanate addition polymerization having improved demolding characteristics through the use of an internal mold release agent.

PROCESS FOR THE PRODUCTION OF MOLDED ARTICLES, MIXTURES OF ISOCYANATE REACTIVE COMPOUNDS SUITABLE THEREFOR AND THE MOLDED ARTICLES, OBTAINED BY THE PROCESS

Mo-3012 LeA 25,018 PROCESS FOR THE PRODUCTION OF MOLDED ARTICLES, MIXTURES OF ISOCYANATE REACTIVE COMPOUNDS SUITABLE THEREFOR AND THE MOLDED ARTICLES OBTAINED BY THE PROCESS The present invention is directed to a process for the production of polyurethane or polyurea elastomeric molded articles according to the reaction injection molding process by reacting a polyisocyanate, a high molecular weight isocyanate reactive component and optionally a diamine chain extender, wherein the improvement is based on the use of the reaction product of a polyepoxide containing at least two epoxide groups with at least one mol of an aromatic diamine per epoxide group wherein the polyepoxide is present in an amount sufficient to provide about 0.5 to 25% by weight of the polyepoxide based on the weight of all the isocyanate reactive components. The present invention is also directed to the isocyanate reactive components for use in this process and to the molded articles produced in accordance with this process ...

MANUFACTURE OF RIGID FOAMS AND COMPOSITIONS THEREFOR

E 36280S Manufacture Of Rigid Foams And Compositions Therefor The use of a liquid for the preparation of a rigid polyurethane and/or polyisocyanurate foam by reacting a polyisocyanate and a polyol in the presence of a blowing agent characterised in that the liquid is an inert, insoluble, non-blowing liquid. CFC-free foams may be obtained showing good insulating properties.

POLYURETHANE WATER-BLOWN INTEGRAL SKIN SYSTEM PRODUCED WITH A POLYTETRAHYDROFURAN PREPOLYMER

The present invention relates to water blown integral skin polyurethane foams. These foams are prepared using a diphenylmethane diisocyanate:polytetrahydrofura n prepolymer. The polyurethane foams prepared with this prepolymer exhibit improve d abrasion resistance and cold flex characteristics when compared to water blown i ntegral skin foams prepared without the prepolymer. These foams are suitable for use in shoe sole applications.

Polyol Composition Having Good Flow and Formic Acid Blown Rigid Polyurethane Foams Made Thereby Having Good Dimensional Stability

MOLDED POLYURETHANE FOAMS

This invention relates to molded polyurethane foams prepared by reacting a specific polyisocyanate with a specific polyol in the presence of water as a blowing agent and a catalyst, wherein (a) the polyisocyanate comprises a mixture of (i) a specified amount of polymethylene polyphenyl polyisocyanate and (ii) an NCO-terminated prepolymer prepared from the reaction of an organic polyisocyanate with a specified amount of poly(oxytetramethylene)glycol, or a specific NCO-terminated prepolymer prepared from the reaction of (i) an organic polyisocyanate, (ii) a specified amount of polymethylene polyphenyl polyisocyanate and (iii) a specified amount of poly(oxytetramethylene)glycol, (b) the polyol contains a specified amount of polymer polyol prepared from the reaction of a polyetherpolyol with an ethylenic unsaturated monomer, and (c) the catalyst contains an organotin compound. The molded polyurethane foams can be prepared under good demoldability and have excellent abrasion resistance, and ...

1,1,1,2-TETRAFLUOROETHANE AS A BLOWING AGENT IN INTEGRAL SKIN POLYURETHANE SHOE SOLES

It has been found that 1,1,1,2-tetrafluoroethane (HFC-134a) may be used alone or in combination with water as blowing agents in flexible integral skin foams. Foa ms prepared using HFC-134a alone or in combination with water exhibit physical characteristi cs such as resistance to abrasion and cracking on flex comparable to conventional chlorinat ed fluorocarbon blown foams. The foams of the present invention are suitable for us e in shoe sole applications.

A PROCESS FOR THE CFC-FREE PRODUCTION OF CELLULAR POLYURETHANE MOLDED PARTS

A process for the CFC-free production of cellular polyurethane molded parts/articles with solid surfaces by reacting a reaction mixture of per se known starting materials in sealed molds, to yield polyurethane foams. Carbamates obtainable from aliphatic aminoalcohols and carbon dioxide are used as blowing agents, optionally in conjunction with other blowing agents. The process is suitable for producing foam coverings on steering wheels, spoilers and protective upholstery in car interiors, and for producing soles of shoes or shoe components.

CYCLOHEXANEDIMETHANOL-ADIPATE BASED PREPOLYMERS AND REACTION INJECTION MOLDED PRODUCTS MADE THEREFROM

Mo3310 PU-316 NOVEL CYCLOHEXANEDIMETHANOLADIPATE BASED PREPOLYMERS AND REACTION INJECTION MOLDED PRODUCTS MADE THEREFROM The present invention is directed to a polyisocyanate prepolymer prepared by reacting an isocyanate based on 4,4-methylenebis(phenyl isocyanate) and a polyester polyol by reacting 1,4-cyclohexanedimethanol and adipic acid. The invention is also directed to a RIM process using such prepolymers.

BLENDS OF ALKYLENE GLYCOLS AND RELATIVELY HIGH EQUIVALENT WEIGHT ACTIVE HYDROGEN COMPOUNDS CONTAINING MULTIPURPOSE ADDITIVES

A compatibilized active hydrogen compoundalkylene glycol composition comprises components (A) a relatively high equivalent weight material having an average of at least about 1.8 active hydrogen-containing group per molecule and a weight of from 500 to 5000 per active hydrogen-containing group; (B) an alkylene glycol which is incompatible with component (A) at the relative proportions thereof present in the composition; and (C) a compatibilizing amount of at least one thiourea compound. Preferably the composition also contains at least one transition metal salt of a carboxylic acid wherein said metal is selected from Groups I-B, II-B, V-A, IV-B, V-B, VI-B, VII-B or VIII of the Periodic Table of the Elements. The composition preferably also contains a sufficient quantity of at least one amine group-containing material that the salt is soluble in said composition. Such compositions are useful in producing polyurethanes, particularly polyurethanes exhibiting relatively short demold times and ...

PRODUCTION OF POLYURETHANE FOAMS

In a process for producing polyurethane foams, preferably semirigid polyurethane foams and flexible, semirigid and rigid polyurethane integral foams, a) at least one modified or unmodified organic polyisocyanate is reacted with b) at least one relatively high molecular weight compound con taining at least two reactive hydrogens and, if desired, c) low molecular weight chain extenders and/or crosslinkers in the presence of d) blowing agents, preferably water and/or (cyclo)alkanes, e) a catalyst mixture comprising, according to the invention, e') from 35 to 65 parts by weight of di-n-octyltin bis(2-ethylhexyl thioglycolate) and e'') from 65 to 35 parts by weight of mono-n-octyltin tris(2-ethylhexyl thioglycolate) and also, if desired, e''') cocatalysts selected from the group of tertiary amines, alkali metal and alkaline earth metal salts of monocarboxylic acids having from 1 to 20 carbon atoms and f) if desired, additives, with the reaction for forming the polyurethane integral foams being ...

PRODUCTION OF LOW-FOGGING POLYURETHANE FOAMS, AND SPECIFIC POLYOXYALKYLENE-POLYOLS WHICH CAN BE USED FOR THIS PURPOSE

The invention relates to a process for the production of polyurethane foams by reacting a) at least one organic polyisocyanate with b) at least one polyalkylene-polyol (b1) having a hydroxyl number of from 30 to 500, obtainable by alkoxylation of at least one initiator molecule from the group consisting of N,N'-bis(3-aminopropyl)ethylenediamine, tripropylenetetramine and tetrapropylenepentamine using at least one alkylene oxide, preferably ethylene oxide and/or 1,2-propylene oxide, or mixtures of the polyoxyalkylene polyols (b1) and other polyhydroxyl compounds having a functionality of from 2 to 8 and a hydroxyl number of from 15 to 500, and c) if desired, chain extenders and/or crosslinking agents, in the presence of d) blowing agents and, if desired, e) catalysts and f) additives, and to the novel polyoxyalkylene-polyols (b1) which can be used for this purpose.

PROCESS FOR THE PREPARATION OF POLYUREA ELASTOMERS CONTAINING URETHANE GROUPS

Mo3733 LeA 28,383 PROCESS FOR THE PREPARATION OF POLYUREA ELASTOMERS CONTAINING URETHANE GROUPS A process for the preparation of optionally cellular elastic moldings by the reaction injection molding technique in closed molds, in which isocyanate prepolymers A) based on a) polyisocyanates of the diphenylmethane series and b) polyether polyols having a maximum hydroxyl functionality of 2.4 are reacted with a reactive component B) consisting essentially of aromatic, alkyl-substituted diamines, optionally with the addition of auxiliary agents and additives d). Mo3733 ...

IMPROVED WATER BLOWN POLYURETHANE SOLING SYSTEMS

This invention relates to molded articles comprising micro cellular polyurethane foams, preferably integral skin foams. These exhibit improved properties and are particularly suitable for soling systems in footwear. The present invention also relates to a process for the production of these molded articles. These molded articles comprise the reaction product of (A) an isocyanate comprising a stable, liquid MDI based prepolymer containing an allophanate-modified MDI, with (B) an isocyanate reactive component, in the presence of (C) at least one blowing agent.

Produit souple et élastique à base de polyuréthanes

Procédé de fabrication de pièces moulées en mousse plastique de polyuréthane à couche superficielle non alvéolaire

VERFAHREN ZUR HERSTELLUNG EINES ZELLIGEN, STARREN POLYURETHAN-FORMKOERPERS.

Verfahren zur Herstellung von Schaumstoffen

Verfahren zur Herstellung von Schaumstoffen auf Isocyanatbasis

Procédé de fabrication de pièces moulées en mousse plastique de polyuréthane recouverte d'une couche superficielle continue

Process for the preparation of cold-curing, flexible foams containing urethane groups

Structure of support improved for the human body.

Una struttura di supporto per il corpo umano comprende uno scafo (2) al quale è sovrapposto unimbottitura (4) ricoperto a sua volta da un rivestimento (7). Limbottitura (4) e/o il rivestimento (7) sono realizzati con un formulato comprendente almeno un materiale polimerico di derivazione fossile ed almeno un materiale derivato da fonti rinnovabili ed i materiali del formulato sono selezionati in modo tale che limpronta di carbonio secondo la norma ISO 14067 in termini di quantità di diossido di carbonio equivalente (CO 2 e) per unità di peso del formulato è relativamente bassa e la percentuale di radiocarbonio 14 (pMC) secondo lo standard ASTM D6866 per unità di peso del formulato è relativamente alta. Il formulato per la realizzazione dello strato inferiore (5) dellimbottitura (4) comprende un preparato polimerico espanso comprendente una fase di polioli, una fase di isocianati, una fase di additivi, ed una fase di plastificanti, in cui la fase di additivi comprende additivi derivati da ...

Foams, foamable compositions and methods of making integral skin foams

The present invention relates, at least in part, to integral skin foam premix compositions, foams, and method of producing such foams. In certain aspects, the premix is storage stable and includes a hydrohaloolefin blowing agent, one or more polyols, one or more surfactants, and a catalyst.

Kendinden deri üreten ve/veya poliüreden üretilen şekilli gövdelerin hazırlanması işlemi.

Process for the production of heat-resistant polyurethane urea elastomers

The present invention is directed to a process for the production of a polyurethane urea elastomer which comprises preparing a heterogeneous mixture of (a) a diaminodiphenylurea corresponding to the formula wherein R1, R2, R3 and R4, which may be the same or different, represent hydrogen or a C1-C6 alkyl radical and wherein the amino groups are in the meta and/or para position to the urea group and (b) polyisocyanates and NH2-or OH-groups containing compounds or a NCO-terminated prepolymer prepared from a polyisocyanate and a polyhydroxyl compound having a molecular weight of 400 to about 10,000, and subsequently reacting the heterogeneous system to form a polyurethane urea elastomer by heating the mixture to a temperature below the melting point of said diaminodiphenylurea. The present invention is also directed to heterogeneous reaction mixtures based on the above diaminodiphenylureas suspended in the above NCO-terminated prepolymers.

PROCESS FOR THE PRODUCTION OF RIGID POLYURETHANE FOAMS

Rigid polyurethane foams are produced by reacting a polyisocyanate with a polyester containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight of 400 to 10,000 in the presence of water, an organic blowing agent, a flameproofing agent and a compound containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight in the range from 32 to 399 as crosslinking agent, optionally in the presence of known auxiliaries and additives. The polyester, the flameproofing agent and the crosslinking agent are used in quantities such that from about 15 to about 35 parts by weight of polyester, from about 50 to about 80 parts by weight flameproofing agent and from about 5 to about 15 parts by weight of crosslinking agent (with the sum of the parts by weight of these components adding up to 100) are present. These foams are useful as insulating materials in applications where flame resistance is important.

Water-blown integral skin polyurethane foams having a skin with abrasion resistance

The invention pertains to a water blown integral skin polyurethane foam having a skin with good abrasion resistance. The foam is manufactured by employing as a polyol composition a polyol having a functionality of from 1.75 to 2.65 and a molecular weight of from 1500 to 5000 along with a surfactant and water as a blowing agent. The particular surfactant is a particular siloxane or an ethylene oxide adduct of octylphenol.

Process for producing a polyurethane foam insole

Described herein is a method for producing a PU foam insole, including the following steps of: (1) pouring the raw materials used to form a PU foam into a mould, reacting to obtain a PU sheet, where the height of the mould cavity is from about 1.0 to about 1.6 times of the total thickness of two finished insoles; (2) splitting the PU sheet into two halves in the horizontal direction to obtain two pieces of PU insole material, where one surface of the material has open pores, and the other surface of the material has a skin; and (3) attaching a piece of fabric onto the surface having open pores of the material obtained in step (2). Also described herein is a PU foam insole produced by the method.

СПОСОБ ПОЛУЧЕНИЯ ЯЧЕИСТЫХ ПОЛИУРЕТАНОВЫХ ФОРМОВАННЫХ ИЗДЕЛИЙ

Объектом изобретения является способ получения ячеистых полиуретановых формованных изделий с компактной поверхностью без использования фторхлоруглеводородов путем взаимодействия в закрытых формулах реакционной смеси полиизоцианатного компонента с содержанием изоцианатных групп, составляющим 18 - 33,6 мас.%, состоящего по меньшей мере из одного, в случае необходимости химически модифицированного, полиизоцианата или смесь полиизоцианатов дифенилметанового ряда, полиольного компонента средней гидроксильной функциональности 2 - 3, состоящего по меньшей мере из одного простого полиэфирного полиола с молекулярной массой от 2000 до 10000 и/или по меньшей мере одного сложного полиэфирного полиола с молекулярной массой от 2000 до 10000, по меньшей мере одного дифункционального в отношении реакции полиприсоединения изоцианата соединения с молекулярной массой от 62 до 1999 в количестве от 2 до 15% от массы компонента в присутствии порообразователя и других вспомогательных веществ, известных в полиуретановой ...

МНОГОСЛОЙНЫЙ ОГНЕСТОЙКИЙ СИНТЕТИЧЕСКИЙ МАТЕРИАЛ

... 1. Многослойный синтетический материал, имеющий модуль упругости при изгибе > 250 Н/мм, включающий слой носителя из полиуретана, содержащий в качестве огнезащитного средства красный фосфор и/или меламин, и/или производные меламина, а также по меньшей мере один соединенный с ним в плоскости покрывающий слой из полиуретана, содержащий в качестве огнезащитного средства пенографит.2. Синтетический материал по п.1, отличающийся тем, что покрывающий слой содержит пенографит в количестве от 5 до 50 мас.%, в частности, от 20 до 25 мас.%, соответственно в пересчете на общую массу этого покрывающего слоя.3. Синтетический материал по п.1, отличающийся тем, что покрывающий слой дополнительно в качестве огнезащитного средства содержит Al(OH), предпочтительно в количестве от 5 до 50 мас.%, особенно предпочтительно в количестве от 20 до 25 мас.%, соответственно в пересчете на общую массу этого покрывающего слоя.4. Синтетический материал по одному из пп.1-3, отличающийся тем, что сумма количеств огнезащитных ...

Verfahren zur Herstellung von Polyurethan-Polyharnstoff-Schaumstoffen und Formteilen

Preparation of polyurethane foam used for automobiles and furniture utilizes a di-, tri- or tetra-alkylamino carbamate as catalyst and propellant

Preparation of polyurethane foam utilizes di-, tri- or tetra-alkylamino carbamate(s) as catalyst and propellant to give reduced odor. Preparation of polyurethane (PU) foam utilizes carbamate(s) of formula (I) as catalyst and propellant. [Image] R1 and R2alkyl; R3 and R4H or alkyl; R5H, alkanol, polyethermonool or X (X is not defined); and n : 2 or 3.

PROCESS FOR THE PRODUCTION OF ELASTIC MOULDINGS

Production of a polyurethane integral foam with compressed edge zone and cellular core involves reacting a polyisocyanate and an inorganic zeolite with a polyol composition

Production of a polyurethane integral foam involves reaction of an isocyanate component comprising (i) an optionally modified organic polyisocyanate and/or its pre-polymer and (ii) an inorganic zeolite with a specified polyol composition : Production of a polyurethane integral foam involves reaction of an isocyanate component comprising (i) an optionally modified organic polyisocyanate and/or its pre-polymer and (ii) an inorganic zeolite with a polyol composition comprising (A) a polyol of hydroxy number 20-1050 (especially 200-900) and functionality 2-6 (especially 2-5) and/or a mixture of polyols with calculated average OH number 250-650 (especially 350-500) and calculated average functionality 2.5-5 (especially 3-4.5); (B) water; and optionally (C) chain- extenders, crosslinkers, activators and/or conventional additives.

Verfahren zur Herstellung von Polyurethan-Schaumstoffen

Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Polyurethan-Schaumstoffen durch Umsetzung von DOLLAR A a) Polyisocyanaten mit DOLLAR A b) Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen, DOLLAR A dadurch gekennzeichnet, daß die Polyisocyanate a) aliphatische Di- oder Polyisocyanate sind und die Verbindungen mit mindestens zwei mit Isocyanatgruppen reaktiven Wasserstoffatomen b) mindestens ein Acrylatpolyol enthalten.

VERFAHREN ZUR HERSTELLUNG VON URETHANGRUPPEN AUFWEISENDEN POLYHARNSTOFF-ELASTOMEREN

Verfahren zur Herstellung von Fluorchlorkohlenwasserstoff-freien weichelastischen, halbharten oder harten Polyurethanformkörpern mit einem zelligen Kern und einer verdichteten Randzone

The present invention relates to a method for producing soft and elastic, semi-hard or hard moulded bodies of polyurethane which are fluorochlorohydrocarbon-free and have a cellular core as well as a compacted side area. This method comprises reacting a) polyisocyanates with b) at least one compound having at least two reactive hydrogen atoms, with c) foaming agents, with d) catalysts and with e) optional auxiliary agents and/or additives. This method is characterised in that the foaming agents c) contain c1) at least one carbodiimide-forming catalyst and c2) at least one carboxylic acid and/or the anhydride thereof.

VERFAHREN ZUR HERSTELLUNG VON FORMKOERPERN MIT EINEM ZELLIGEN KERN UND EINER VERDICHTETEN RANDZONE MIT VERBESSERTEN ENTFORMUNGSEIGENSCHAFTEN.

Verfahren zur Herstellung von Formkörpern aus Polyurethanschaumstoffen und die nach diesem Verfahren erhaltenen Formkörper

Process for the production from polyurethane plastic foam of mouldings covered with a continuous surface coating

A foaming liquid comprising a polyol, a gas generator, an organic polyisocyanate and/or an isocyanate-terminated pre-polymer, and such a weight of polyfunctional organic compound as to be equivalent to 7% of the weight of the polyisocyanate component, is introduced into a mould, the surface of which is at such a temperature below 100 DEG C. (preferably the range 0-70 DEG C.) that the moulded foam produced is covered by a non-cellular surface layer. The polyfunctional compound has at least two active hydrogen atoms at least one of which belongs to an amine group, but does not include primary mono-amines. It may be a polyamine, e.g. methylene-bis-ortho-chloroaniline, or an amino alcohol or amino thiol, e.g. 2-amino-2-methyl-1-propanol. Polyether or polyester polyols may be used. Suitable isocyanate ingredients are toluylene diisocyanate or hexamethylene diisocyanate. The gas generator may be water, monofluorotrichloromethane or methylene chloride. Conventional foaming and cross-linking catalysts ...

1,1,1,2-TETRAFLUOROETHANE AS A BLOWING AGENT IN INTEGRAL SKIN POLYURETHANE SHOE SOLES

It has been found that 1,1,1,2-tetrafluoroethane (HFC-134a) may be used as blowing agent alone or in conjunction with water in the formation of flexible integral-skin foams from organic isocyanates and isocyanate-reactive polyols having a functionality of at least 1.5 together with catalysts, chain extenders and further optional ingredients. Foams prepared using HFC-134a alone or in conjunction with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams are suitable for use in shoe sole applications.

FIRE RETARDANT, POLYURETHANE FOAM COMPOSITIONS

... 1281301 Fire retardant rigid polyurethane foams CINCINNATI MILACRON Inc 13 Nov 1970 [13 Nov 1969] 54161/70 Headings C3C and C3R Fire retardant rigid polyurethane foams are prepared by reacting a composition comprising (1) an isocyanate terminated adduct obtained by reacting an aromatic polyisocyanate with a difunctional organic compound, (2) at least one polyether polyol having a functionality of at least 4 and which is the reaction product of an alkylene oxide with an alkyl, aryl, aralkyl, cycloalkyl and/or heterocyclic compound, (3) at least one organic compound having a M.W. of at least 500 which does not contain zerewitinoff active H atoms and which contains halogen and/or phosphorus atoms, at least one halogen atom being a bromine atom, or a mixture of halogen and/or phosphorus containing organic compounds, the mixture having an average M.W. of at least 500, which does not contain zerewitinoff active hydrogen atoms and comprising at least one bromine containing compound and (4) a blowing ...

PROCESS FOR THE PRODUCTION OF POLYURETHANE FOAM RESINS

... 1341491 Polyurethane foams BAYER AG 19 April 1971 [23 March 1970] 24661/71 Heading C3R [Also in Division C2] Polyurethane foams are prepared by reacting, in the presence of a blowing agent, a polyisocyanate which is 20 to 85% by weight solution of a biuret-containing polyisocyanate of the formula wherein R is a divalent aliphatic, araliphatic, cycloaliphatic or aromatic radical, and X is a hydrogen atom or the group n being 0 or an integer from 1 to 5, and/or urethane-containing polyisocyanates or mixtures of biuret group-containing polyisocyanates and isocyanurate group-containing polyisocyanates or polyisocyanates which have been modified and partly oxidized at elevated temperature by the action of oxygen via hydroperoxy groups, having an average M.W. of 410 to 3000 in liquid monomeric polyisocyanates which are free from biuret groups with a polyether which is a mixture of polyethers derived from at least one alkylene oxide, 65 to 100% by weight based on the total quantity of alkylene ...

POLYURETHANE FOAM WITH INTEGRAL SKIN

PROCEDURE FOR THE PRODUCTION OF PLASTICS WITH AMIDE GROUPS

PROCEDURE FOR THE PRODUCTION OF FOAM MATERIALS

PROCEDURE FOR THE PRODUCTION OF MOLDED ARTICLES FROM POLYURETHAN-FOAM MATERIALS AFTER THE REACTION INJECTION MOULDING PROCEDURE

Procedure for the production of flame-firm, groups of urethanes exhibiting foam materials

PU WITH COAL HYDRATE COMPONENTS

MIXTURE CONTAINING LAYER SILICATE AND POLYETHERALKOHOL

SYSTEM FOR POLYURETHAN-FOAM MATERIALS OF LOW DENSITY WITH CONSOLIDATED EDGE ZONE, MANUFACTURED USING EXPAND-CASH MICRO BALLS AND WATER AS COTREIBMITTEL

PROCEDURE FOR THE PRODUCTION OF FOAM MATERIALS

PROCEDURE FOR THE PRODUCTION OF WARMING AND CELEBRATIONS PU UREA ELASTOMERS.

LIQUID PREPOLYMERZUSAMMENSETZUNGEN.

HEISSHAERTBARE POLYETHER - POLYESTER PU UREA.

PROCEDURE FOR THE PRODUCTION OF FORMED GEGENSTANDEN FROM POLYURETHAN-FOAM

PROCEDURE FOR THE PRODUCTION OF HIGH ELASTIC POLYURETHAN-FOAM MATERIALS

POLYURETHANE MOLDED ARTICLES

LIGHT-STABLE POLYURETHANE INTEGRAL FOAMS

Oil-absorbing polyurethane sponges with good mechanical properties

The invention relates to a method for the adsorption and/or absorption of oil, according to which a polyurethane sponge with excellent mechanical properties is brought into contact with oil.

Flame proofing agents for polyurethanes, a method for the production of flame proof polyurethane plastics and their use in rail vehicle construction

STRUCTURAL MATERIAL FORMED FROM A RIGID CELLULAR POLYMER HAVING A NON-CELLULAR SURFACE

PROCESS FOR THE PREPARATION OF INTEGRAL SKIN POLYURETHANE STEERING WHEELS

PROCESS FOR THE PREPARATION OF INTEGRAL SKIN POLYURETHANE STEERING WHEELS Abstract of the Disclosure The integral skin polyurethane steering wheel is prepared by reacting (a) a mixture of a graft polymer dispersion in a polyol or a polyol mixture (b) an organic polyisocyanate selected from the group consisting of an isocyanate prepolymer prepared by reacting 4,4'-diphenylmethane diisocyanate with a mixture of dipropylene glycol and a polyoxypropylene glycol having a molecular weight of about 420, a polymeric polymethylene polyphenylene polyisocyanate containing about 55 weight percent diphenylmethane diisocyanate, a 1:1 mixture of 2,4'- and 4,4'-diphenylmethane diisocyanate and mixtures thereof, (c) a blowing agent, (d) a chain extender, and (e) a catalyst, surfactant and optionally flame retardants, fillers U.V. absorbers and other additives.

METHOD OF MAKING FOAMED RESINS HAVING IMPROVED MOLD RELEASE PROPERTIES

PROCESS OF MAKING AN INTEGRAL SKIN POLYURETHANE ARTICLE

The present invention relates to water-blown integral skin polyurethane foam compositions, molded polyurethane articles, a process of preparing said articles , and an isocyanate composition for use therein. In particular, the invention relates to water-blown integral skin molded polyurethane articles having particularly advantageou s physical properties, and compositions useful for producing such articles. In particular, the invention provides a polyurethane composition which has an isocyanate component (a) an isocyanate reactive component (b), a blowing agent comprising water (c), a polyether (d) selected from the group consisting of polytetrahydrofuran and polyethylene glycol having a number average molecular we ight of from 200 to 2000 and optionally, one or more additives (e) from the group con sisting of catalysts, chain extenders, oxo alcohols, and mixtures thereof. The compositi on may be characterized in that the integral skin polyurethane articles made of the com position have ...

A PROCESS FOR THE PRODUCTION OF PLASTICS CONTAINING AMIDE GROUPS

Described is a method of producing by splitting off CO2, plastics containing amide groups, by reacting polyfunctional isocyanates, carboxylic acids plus, optionally, alcohols in the presence of tertiary amines, in particular hereto-aromatic amines. The hetero-aromatic amines preferably contain an additional hereto- atom and/or substituents with + I and/or + M effects. The reaction preferably starts at room temperature and can be used to prepare fine-celled foam materials with an acid number of less than 40 and a maximum gross density of 150 g/l within short reaction times at room temperature and without using foaming agents.

Composition containing specific carbamate type compounds suitable for producing polyurethane foams

Compositions suitable for producing polyurethane foams which include at least an isocyanate component, a polyol component, a catalyst catalyzing formation of a urethane or isocyanurate bond, and at least one compound containing at least one structural element of formula (I)

Producing foams having improved properties

The present invention relates to a composition for producing a rigid polyurethane foam comprising at least one polyol having a molecular weight of not less than 1700 g/mol and at least one blowing agent as component A, and at least one polyisocyanate as component B, wherein the at least one polyisocyanate B comprises from 11 to 39.5 wt % of a polyisocyanate prepolymer, based on a polyether polyol having an OH number of at least 100 mg KOH/g, to a rigid polyurethane foam obtainable by reacting this composition, to a process for producing such a rigid polyurethane foam, to the use of such a rigid polyurethane foam for insulation, especially for pipe insulation and also to a process for producing an insulated pipe.

A process for producing a polyurethane foam insole

Described herein is a method for producing a PU foam insole, including the following steps of: (1) pouring the raw materials used to form a PU foam into a mould, reacting to obtain a PU sheet, where the height of the mould cavity is from about 1.0 to about 1.6 times of the total thickness of two finished insoles; (2) splitting the PU sheet into two halves in the horizontal direction to obtain two pieces of PU insole material, where one surface of the material has open pores, and the other surface of the material has a skin; and (3) attaching a piece of fabric onto the surface having open pores of the material obtained in step (2). Also described herein is a PU foam insole produced by the method.

Hybrid systems consisting of foamed thermoplastic elastomers and polyurethanes

A hybrid material contains a matrix of polyurethane and foamed particles of thermoplastic polyurethane contained therein. A process can be used for producing such hybrid materials and these hybrid materials can be used as bicycle saddles, upholstery and shoe soles.

Hybrid systems consisting of foamed thermoplastic elastomers and polyurethanes

The invention relates to a hybrid material containing a matrix consisting of polyurethane and foamed particles of thermoplastic polyurethane contained in said matrix and to a method for producing hybrid materials of this type. The invention also relates to the use of said hybrid materials in bicycle saddles, padding and shoe soles.

多孔体の製造方法

ウレタン樹脂（Ａ）及び溶剤（Ｂ）を含有するウレタン樹脂組成物を湿式製膜法により加工する多孔体の製造方法であって、前記溶剤（Ｂ）が、溶剤（Ｂ）のハンセン溶解度パラメーター（Ｂ−ＨＳＰ）とウレタン樹脂（Ａ）のハンセン溶解度パラメーター（Ａ−ＨＳＰ）との差が３〜８（Ｊ／ｃｍ３）１／２の範囲であり、かつ、溶剤（Ｂ）のハンセン溶解度パラメーター（Ｂ−ＨＳＰ）と水のハンセン溶解度パラメーター（Ｗ−ＨＳＰ）との差が３１．５〜３８（Ｊ／ｃｍ３）１／２の範囲のものであることを特徴とする多孔体の製造方法。前記溶剤（Ｂ）は、ハンセン溶解度パラメーターにおける分散項（δＤ）が１５．５〜２１．０ＭＰａ０．５の範囲であり、分極項（δＰ）が７．０〜１４．５ＭＰａ０．５の範囲であり、水素結合項（δＨ）が４．５〜１１．０ＭＰａ０．５の範囲であることが好ましい。

硬质泡沫体的制备及其用作原料的组合物

一种用于在发泡剂存在下由多异氰酸酯和多元 醇反应来制备硬质聚氨酯和/或聚异氰酸脲酸酯泡 沫体的液体的应用，其特征在于该液体为惰性的，不 溶性的，不发泡的液体。可以获得无CFC的泡沫体 并显示出优良的保温性能。

리튬-기본 염 함유 연질 포움, 이것의 제조방법, 및 이것을 위한 폴리올 조성물

본 발명은 C 2 내지 C 7 을 갖는 지방족 또는 지환족의 포화 또는 불포화 카르복실산의 리튬염을 함유하는 폴리올 조성물, 및 이에 의해 생성된 개방 셀 구조를 갖는 연질 폴리우레탄 포움에 관한 것이다.

Method of polyisocyanourate foam preparing

Использование: при изготовлении изол ционных материалов, конструкционных элементов в строительстве, на транспорте. Сущность изобретени : пенополиизоциану- ратполучают из полиизоцианата и сложного полиэфира с гидроксильным числом 295 мг КОН/г при 80%-ном избытке полиизоцианата от суммы компонентов и в присутствии вспенивающего агента и смеси 2-этилгексо- аната кали  и 2-этилгексоаната кальци  при массовом соотношении 1,6:2,4. Изоцианат- ный индекс реакционной среды должен быть не менее 500. В рамках способа используют диметилфосфонат. Перерабатывают на традиционном оборудовании. 1 з.п. ф-лы, 2 табл.

Foamed polyurethanes with improved fatigue strength during repeated bending

FIELD: chemistry. SUBSTANCE: invention relates to foamed polyurethane obtained by cross-linking: (a) polyisocyanates, (b) high-molecular weight compounds with groups that are reactive with respect to isocyanate groups, having average functionality of less than 2.5, (c) particles of a solid substance from radically polymerised polymers, dispersed in one of the high-molecular weight compounds with groups that are reactive with respect to isocyanate groups (b), (d) a blowing agent, (e) a chain-elongating agent, optionally a cross-linking agent or mixture thereof, (f) a catalyst and (g) optionally other additives, to form a reaction mixture and carrying out the reaction, wherein content of the chain-elongating agent is less than 6 wt % per total weight of components a) to f), and content of particles of the solid substance is higher than 15 wt % per total weight of components a) to f). The present invention also relates to a method of producing said foamed polyurethane, integrated foam plastic containing said foamed polyurethane, and use of such integrated foam plastic as a shoe sole. EFFECT: obtaining foamed polyurethanes, having better sliding resistance, higher fatigue strength during repeated bending even at low temperature and tactility similar to that of rubber. 8 cl, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 487 899 (13) C2 (51) МПК C08G C08G C08G C08G C08G C08G ФЕДЕРАЛЬНАЯ СЛУЖБА C08J ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ A43B (12) ОПИСАНИЕ 18/10 (2006.01) 18/12 (2006.01) 18/40 (2006.01) 18/48 (2006.01) 18/63 (2006.01) 101/00 (2006.01) 9/34 (2006.01) 13/02 (2006.01) ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010123992/04, 13.11.2008 (24) Дата начала отсчета срока действия патента: 13.11.2008 (56) Список документов, цитированных в отчете о поиске: ЕА 200602164 А1, 27.04.2007. US 2003/0055118 А1, 20.03.2003. US 2004/0082677 А1, 29.04.2004. WO 99/33893 А1, 08.07.1999. US 2007/0254973 A1, 01.11.2007. US 5254597 A, 19.10.1993. RU 2237679 C2, 10.10.2004. 2 4 8 7 8 9 9 R U ( ...

Hot-curing polyether-polyester-polyurethane urea

Heat-curable reactive systems comprising mutually homogeneously immiscible polyethers and polyesters, optionally OH- and/or NH2-terminated, low-molecular-weight chain extenders, optionally conventional assistants and a solid polyisocyanate having a melting point above 80 DEG C, in which the polyester component is in the form of a mixture of solids (powder or granules).

Hot-curing polyether-polyester-polyurethane urea

Hot-curing polyether-polyester-polyurethane urea

Polyurethane foam for steering wheel having improved water resistance

본 발명은 자동차용 스티어링 휠에 사용되는 폴리우레탄 발포체에 관한 것으로서 상세하게는 폴리우레탄 발포체를 형성함에 있어 다양한 관능기 및 OH 값을 갖는 폴리올을 특정 함량으로 사용하고 특정 기능을 갖는 이소시아네이트를 특정 함량으로 사용하며, 발포제로서 물을 사용함으로써 종래의 불소계 발포제나 펜탄계 발포제를 사용함에 따른 환경 문제를 미연에 방지하고 아울러 내 가수분해성 등 내구성을 향상시킨 것을 특징으로 하는 폴리우레탄 발포체에 관한 것이다. The present invention relates to a polyurethane foam used in steering wheels for automobiles. Specifically, in forming a polyurethane foam, a polyol having various functional groups and OH values is used in a specific content and an isocyanate having a specific function is used in a specific content. The present invention relates to a polyurethane foam characterized by improving the durability such as hydrolysis resistance and preventing environmental problems caused by using a conventional fluorine-based foam or a pentane-based foaming agent. 스티어링 휠, 폴리우레탄, 발포제, 폴리올, 이소시아네이트, 가수분해성 Steering wheel, polyurethane, foaming agent, polyol, isocyanate, hydrolyzable

Hybrid systems consisting of foamed thermoplastic elastomers and polyurethanes

本发明涉及一种混杂材料，其含有聚氨酯的基体和包含在此基体中的热塑性聚氨酯发泡粒子，还涉及生产这种混杂材料的方法。本发明还涉及所述混杂材料作为自行车座椅、踏板和鞋底的用途。

Production of elastic polyurethane mouldings with compact surfaces and cellular cores

具有致密表面和多孔芯层的弹性聚氨酯模塑制件的生产,是用a)改性有机多异氰酸酯与b)至少一种含有至少2个活性氢原子的化合物和(如需要)c)扩链剂在d)发泡剂、e)催化剂和(如需要)f)惯用辅助剂和/或添加剂存在下在闭模中进行反应,同时密实其中所用的改性有机多异氰酸酯是由纯MDI与至少一种聚醚醇(聚氧烯烃多元醇)的至少一种反应产物,改性有机多异氰酸酯的NCO含量< 15%(重量)。

Expanded polyurethane with improved flex resistance

Production of foamed thermoplastic elastomers

Polyurethane prepolymer compositions, foams made therefrom and methods of making each thereof

본 발명은, 평균 이소시아네이트 관능가가 2 이상이며, 디이소시아네이트 단량체를 20중량％ 이상 함유하는 유기 폴리이소시아네이트(a), 1가 알코올(b) 및 평균 하이드록실 관능가가 1.8 내지 3.2인 폴리올(c)의 반응 생성물을 포함하며, 보조 취입제의 부재하에 물과 반응하여 발포체를 제조하기에 충분한 중량의 이소시아네이트 그룹(ⅰ), 디이소시아네이트 단량체(ⅱ) 10.0 중량％ 이하 및 예비중합체 조성물의 겔화를 방지하기에 충분한 1가 알코올로 캡핑된 특정량의 폴리이소시아네이트(ⅲ)를 포함하는 폴리이소시아네이트 예비중합체 조성물에 관한 것이다. 당해 예비중합체 조성물은, 평균 이소시아네이트 관능가가 2 이상인 유기 폴리이소시아네이트(ⅰ), 1가 알코올(ⅱ) 및 평균 하이드록실 관능가가 1.8 내지 3.2인 폴리올(ⅲ)을 하이드록실에 대한 NCO의 비를 2 내지 5로 하고 1가 알코올 대 폴리올의 비를 1가 알코올 및 폴리올의 하이드록실 당량을 기준으로 하여 0.1 내지 2로 하여 예비중합체를 제조하기에 충분한 시간 및 온도에서 접촉시켜 제조할 수 있다. 예비중합체 조성물은 물과 반응하여 폴리우레탄 발포체를 제공할 수 있다. The present invention provides a polyol (c) having an average isocyanate functionality of 2 or more and an organic polyisocyanate (a), a monohydric alcohol (b) and an average hydroxyl functionality of 1.8 to 3.2 containing 20% by weight or more of a diisocyanate monomer. To prevent gelation of the isocyanate group (i), diisocyanate monomer (ii) up to 10.0% by weight and sufficient to react with water in the absence of a co-blowing agent to prepare a foam. A polyisocyanate prepolymer composition comprising a specific amount of polyisocyanate capped with sufficient monohydric alcohol. The prepolymer composition is a polyol having an average isocyanate functionality of 2 or more, a monohydric alcohol (ii) and a polyol having an average hydroxyl functionality of 1.8 to 3.2, and the ratio of NCO to hydroxyl is 2 to 2. And a ratio of monohydric alcohol to polyol of 0.1 to 2, based on the hydroxyl equivalents of monohydric alcohol and polyol, can be prepared by contacting at a time and temperature sufficient to produce the prepolymer. The prepolymer composition can be reacted with water to provide a polyurethane foam. 취입제, 발포 반응물, 관능가, OH에 대한 NCO의 비, 1가 알코올, 폴리올, 가소제, 촉매, 캡핑 Blowing agents, foaming reactants, functionalities, ratio of NCO to OH, monohydric alcohols, polyols, plasticizers, catalysts, capping

Method for manufacturing a porous body

우레탄 수지(A) 및 용제(B)를 함유하는 우레탄 수지 조성물을 습식 제막법에 의해 가공하는 다공체의 제조 방법으로서, 상기 용제(B)가, 용제(B)의 한센 용해도 파라미터(B-HSP)와 우레탄 수지(A)의 한센 용해도 파라미터(A-HSP)와의 차가 3∼8(J/㎤) 1/2 의 범위이며, 또한, 용제(B)의 한센 용해도 파라미터(B-HSP)와 물의 한센 용해도 파라미터(W-HSP)와의 차가 31.5∼38(J/㎤) 1/2 의 범위의 것임을 특징으로 하는 다공체의 제조 방법. 상기 용제(B)는, 한센 용해도 파라미터에 있어서의 분산항(δD)이 15.5∼21.0MPa 0.5 의 범위이고, 분극항(δP)이 7.0∼14.5MPa 0.5 의 범위이고, 수소 결합항(δH)이 4.5∼11.0MPa 0.5 의 범위인 것이 바람직하다. A method for producing a porous body in which a urethane resin composition containing a urethane resin (A) and a solvent (B) is processed by a wet film forming method, wherein the solvent (B) is a Hansen solubility parameter of the solvent (B) (B-HSP) The difference between the Hansen solubility parameter (A-HSP) of the urethane resin (A) is in the range of 3 to 8 (J/cm 3 ) 1/2 , and the Hansen solubility parameter (B-HSP) of the solvent (B) and the Hansen solubility parameter (B-HSP) of water A method for producing a porous body, characterized in that the difference from the solubility parameter (W-HSP) is in the range of 31.5 to 38 (J/cm 3 ) 1/2. In the solvent (B), the dispersion term (δD) in the Hansen solubility parameter is in the range of 15.5 to 21.0 MPa 0.5 , the polarization term (δP) is in the range of 7.0 to 14.5 MPa 0.5 , and the hydrogen bonding term (δH) is It is preferably in the range of 4.5 to 11.0 MPa 0.5.

Composition containing special carbamate-like compounds, suitable for producing polyurethane foams

Composition comprises at least one polyol component, a catalyst which catalyzes the formation of a urethane or isocyanurate bond, optionally a propellant, optionally further additives, optionally an isocyanate component and a compound (I) containing an amide structural unit (II). Composition comprises at least one polyol component, a catalyst which catalyzes the formation of a urethane or isocyanurate bond, optionally a propellant, optionally further additives, optionally an isocyanate component and a compound (I) containing an amide structural unit of formula (-C(=O)-N(R1a)-X-Z-C(=O)-NH-) (II). R1a : H or an organic group; X : at least 2C-organic group; Z : O or NR3a; and R3a : H or alkyl.

Composition containing specific carbamate-type compounds suitable for the preparation of polyurethane foams

Gegenstand der Erfindung sind Zusammensetzungen, geeignet zur Herstellung von Polyurethanschäumen, die zumindest eine Isocyanat-Komponente, eine Polyolkomponente, einen Katalysator, die die Ausbildung einer Urethan- oder Iscyanurat-Bindung katalysiert, optional ein Treibmittel und weitere Additive aufweist, welche dadurch gekennzeichnet, sind, dass sie zusätzlich mindestens eine Verbindung aufweisen, die mindestens ein Strukturelement der Formel (I)enthält, ein Verfahren zur Herstellung von Polyurethanschäumen unter Verwendung dieser Zusammensetzungen sowie die Verwendung der entsprechenden Polyurethanschäume. The invention relates to compositions suitable for the production of polyurethane foams which have at least one isocyanate component, one polyol component, one catalyst which catalyzes the formation of a urethane or iscyanurate bond, optionally a blowing agent and other additives which are characterized in that that they additionally have at least one compound which contains at least one structural element of the formula (I), a process for the preparation of polyurethane foams using these compositions and the use of the corresponding polyurethane foams.

Method for producing vehicle seat pad

本发明的目的在于提供一种固化性良好地制造醛不易扩散的车辆座椅用垫的方法。本发明提供一种车辆座椅用垫的制造方法，是包括工序(I)的车辆座椅用垫的制造方法，上述工序(I)是使活性氢成分(A)和有机聚异氰酸酯(B)在发泡剂(C)、氨基甲酸酯化催化剂(D)、稳泡剂(E)和添加剂(F)的存在下反应而得到软质聚氨酯泡沫的工序，其中，(C)含有水，(F)含有选自下述通式(1)表示的尿素化合物(F1)、氨基酸(F2)和多元酚(F3)中的至少1种，软质聚氨酯泡沫的核密度为25～90kg/m 3 ，回弹性为50～75％，硬度(25％-ILD)为150～400N/cm 2 。

Polysiocyanurate rigid foams

一种制备聚异氰酸酯泡沫的方法，它包括将聚亚甲基聚亚苯基聚异氰酸酯组合物与多功能活泼氢化合物，在三聚催化剂和惰性挥发性起泡剂存在下进行反应，异氰酸酯指数至少750，聚异氰酸酯组合物的量至少是聚异氰酸酯组合物与活泼氢化合物总重量的80%。

Process for the production of flame-retardant foams containing urethane groups

Manufacture of polyisocyanurate foam

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method of manufacturing parts from plastic, in particular profiled parts from polyurethane

FIELD: polymer materials and metallurgy. SUBSTANCE: invention relates to manufacturing plastic parts using mold with its inside surface made completely or in part from steel. Polyurethane parts are manufactured in molds with inside surface made from tool steel containing, wt %: at least one element from group including tungsten 0-40, molybdenum 0-12, and vanadium 0-5; at least one element from group including chromium 1-6 and aluminum 0-15; if necessary carbon 0.1-1.5, cobalt 0.1-10, and nitrogen (in nitrated layer) 0-10. EFFECT: enabled detachment of part from mold without using internal lubricants. 3 cl, 6 ex СУЗГОсСсС ПЧ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2 201 342 ' (51) МПК” 13) С2 В 29 С 33/38, С 22 С 38/24, 38/22 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98118638102, 27.02.1997 (24) Дата начала действия патента: 27.02.1997 (30) Приоритет: 12.03.1996 ОЕ 19609610.3 27.11.1996 ОЕ 19649111.8 (43) Дата публикации заявки: 27.06.2000 (46) Дата публикации: 27.03.2003 (56) Ссылки: ГЕЛЛЕР Ю.А. Инструментальные стали. - М.: Металлургия, 1968, с. 541-543. СВ 1583878, 04.02.1981. 4Р 03-090539 А, 16.04.1991. 4Р 57-161051, 04.10.1982. УР 62-202050 А, 05.09.1987. СВ 1583777, 04.02.1981. ЕР 0230576 АЛ, 05.08.1987. ЗЧ 489810, 10.02.1976. (85) Дата перевода заявки РСТ на национальную фазу: 12.10.1998 (86) Заявка РСТ: ЕР 97/00952 (27.02.1997) (87) Публикация РСТ: М/О 97/34021 (18.09.1997) (98) Адрес для переписки: 103064, Москва, ул. Казакова, 16, НИИР Канцелярия "Патентные поверенные Квашнин, Сапельников и партнеры", пат.пов. В.П.Квашнину, рег.№ 0004 (71) Заявитель: БАЙЕР АКЦИЕНГЕЗЕЛЛЬШАФТ (0Е) (72) Изобретатель: РАССХОФЕР Вернер (0Е), МЮЛЛЕР Хенри (ОЕ), ЗИМАННЕК Ахим (0Е) (73) Патентообладатель: БАИЕР АКЦИЕНГЕЗЕЛЛЬШАФТ (0Е) (74) Патентный поверенный: Квашнин Валерий Павлович (54) СПОСОБ ИЗГОТОВЛЕНИЯ ДЕТАЛЕЙ ИЗ ПЛАСТМАССЫ, В ЧАСТНОСТИ ФАСОННЫХ ДЕТАЛЕЙ ИЗ ПОЛИУРЕТАНА (57) Изобретение относится к изготовлению деталей из ...

Polysiocyanurate rigid foams

一种制备聚异氰酸酯泡沫的方法，它包括将聚亚 甲基聚亚苯基聚异氰酸酯组合物与多功能活泼氢化 合物，在三聚催化剂和惰性挥发性起泡剂存在下进行 反应，异氰酸酯指数至少750，聚异氰酸酯组合物的 量至少是聚异氰酸酯组合物与活泼氢化合物总重量 的80％。

Procedure for production of moulded item out of polyurethane

FIELD: metallurgy. ^ SUBSTANCE: cast machine is used at production of moulded item out of polyurethane. Polyisocyanate components and two kinds of polyol components are separately supplied into the machine. First liquid mixture containing polyisocyanate and polyol components are supplied into a mould with a foaming agent. Before completion of the first liquid mixture supply into the mould there is added the second liquid mixture containing polyisocyanate and the second polyol component with the foaming agent. ^ EFFECT: one-stage production of moulded item out of polyurethane having external layer of high density, moulded selectively, also ratio of external layer of high density and foamed nucleus can be varied. ^ 5 cl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 394 049 (13) C2 (51) МПК C08J 9/34 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2007126960/02, 03.12.2005 (24) Дата начала отсчета срока действия патента: 03.12.2005 (73) Патентообладатель(и): Байер МатириальСайенс Акциенгезельшафт (DE) (43) Дата публикации заявки: 27.01.2009 2 3 9 4 0 4 9 (45) Опубликовано: 10.07.2010 Бюл. № 19 (56) Список документов, цитированных в отчете о поиске: US 6352658 B1, 05.03.2002. WO 01/32392 A1, 10.05.2001. US 6294248 B1, 25.09.2001. RU 2002119018 А1, 10.01.2004. 2 3 9 4 0 4 9 R U (86) Заявка PCT: EP 2005/012976 (03.12.2005) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 17.07.2007 (87) Публикация PCT: WO 2006/063702 (22.06.2006) Адрес для переписки: 105064, Москва, а/я 88, пат.пов. В.П.Квашнину, рег.№ 4 (54) СПОСОБ ПОЛУЧЕНИЯ ФОРМОВАННОГО ИЗДЕЛИЯ ИЗ ПЕНОПОЛИУРЕТАНА (57) Реферат: При получении формованного изделия из полиуретана используют литьевую машину, в которой предусматривается подача отдельно полиизоцианатных компонентов и двух видов полиольных компонентов. Подают в форму первую жидкую смесь, содержащую полиизоцианатный и полиольный компоненты без вспенивающего ...

Method of partial dicarbodiimidation of isocyanate group of organic isocyanate

Polyvinyl chloride/polyurethane hybrid foams

Disclosed is a foamed polymeric material comprising a continuous phase of polyurethane having solid polyvinyl chloride particles dispersed therein. The material preferably comprises about 100 parts of a foamable urethane, and 10 to 50 parts polyvinyl chloride particles having a particle size below 200 microns. The material has a microcellular structure with cells preferably on the order of 0.1 mm in average diameter or less. The walls comprise a matrix of polyurethane reinforced with PVC particles. The material may be used as a wood substitute.

Flame retardants for polyurethanes, a process for the production of flame-retardant polyurethane plastics, and their use in rail vehicle construction

The invention relates to flame proofing agents for polyurethanes, consisting of red phosphor and melamine and/or a melamine derivative in a weight ratio of 1:7.5 to 1:100, and a method for the production of flame proof polyurethane plastics, in which organic polyisocyanates are reacted with compounds with at least two hydrogen atoms which are capable of reacting with isocyanates and have a molecular weight of 250 to 12,500, possibly with cross-linkers with at least two hydrogen atoms which are capable of reacting with isocyanates and have a molecular weight of 32 to 249, possibly with filling materials, blowing agents, stabilizers, activators and/or other known auxiliary and additive agents in the presence of a mixture of red phosphor and melamine and/or a melamine derivative with a weight ratio of red phosphor to melamine and/or melamine derivative of 1:7.5 to 1:100. The usage of these flame proof polyurethane plastics in rail vehicle construction is also described.

Highly filled polyurethane composites

Composite materials and methods for their preparation are described herein. The composite materials can comprise (a) a polyurethane and (b) from 35% to 90% by weight, based on the total weight of the composite, of a particulate filler dispersed in the polyurethane. The polyurethane can be formed by the reaction of (i) one or more isocyanates selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, and (ii) one or more polyols. The one or more polyols that form the polyurethane comprise a high hydroxyl number polyol having a hydroxyl number of at least 250 mg KOH/g. In some cases, the one or more polyols that form the polyurethane can have a weight average equivalent weight of from 200 to 1100 amu. In some cases, the one or more polyols that form the polyurethane can include less than 5% by weight, based on the total weight of the one or more polyols that form the polyurethane, of one or more flexible polyols having a hydroxyl number of less than 150 mg KOH/g and a functionality of less than 3.

METHOD FOR PRODUCING MOLDED FOAMS

Compositions of foams

FIELD: chemistry; construction.SUBSTANCE: invention relates to compositions of foams for producing rigid polyurethane foams and a method for production thereof. Foam composition contains a polyol composition containing an amine-initiated polyol ranging from 10 percent to 20 percent of the total weight of the polyol composition and an additional polyol ranging from 80 percent to 90 percent of the total weight of the polyol composition, wherein said additional polyol contains a trifunctional polyol of less than 10 % of the total weight of the polyol composition, wherein the amine-initiated polyol has an average hydroxyl number of from 200 to 850; polyisocyanate, wherein foam composition has isocyanate number in range from 70 to 500; foaming agent; trimerisation catalyst; a foaming catalyst comprising pentamethyl-diethylenetriamine; and a gelation catalyst containing dimethylcyclohexylamine. Combination of the foaming catalyst and the gelling catalyst ranges from 0.5 % to 1.5 % of the total weight of the polyol composition. Foaming catalyst ranges from 60 percent to 100 percent of the total weight of the foaming catalyst and gelation catalyst. Rigid polyurethane foam is obtained by hardening said composition. Method of producing a foam composition involves preparing a polyol composition by combining an amine-initiated polyol and an additional polyol and combining the polyol composition with a polyisocyanate, a foaming agent, a trimerisation catalyst, a foaming catalyst and a gelation catalyst.EFFECT: technical result is improved, faster curing compared to other foam compositions, reduced amount of gelation catalyst with respect to foaming catalyst, reduced time of obtaining rigid polyurethane foams.9 cl, 7 tbl, 7 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 718 614 C2 (51) МПК C08G 18/12 (2006.01) C08G 18/18 (2006.01) C08G 18/50 (2006.01) C08G 18/42 (2006.01) C08G 18/48 (2006.01) C08G 101/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА C08J 9/12 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ ...

Foamed polyurethanes having improved flexural endurance properties

본 발명은 (a) 폴리이소시아네이트, (b) 이소시아네이트 기에 대하여 반응성 기를 갖는 비교적 고 분자량의 화합물, (c) 고체 입자, (d) 발포제, (e) 적절한 경우, 쇄 연장제, 가교 결합제 또는 이들의 혼합물, (f) 적절한 경우, 촉매 및 (g) 적절한 경우, 다른 첨가제를 혼합하여 반응 혼합물을 생성하고 이 반응 혼합물을 반응 완료시킴으로써 얻을 수 있는 발포 폴리우레탄으로서, 쇄 연장제의 비율은 성분 (a) 내지 (f)의 총 중량을 기준으로 6 중량% 미만이고, 고체 입자의 함량은 성분 (a) 내지 (f)의 총 중량을 기준으로 15 중량% 초과이고, 이소시아네이트 기에 대하여 반응성 기를 갖는 비교적 고 분자량의 화합물의 평균 작용가(average functionality)는 2.5 미만인 것인 발포 폴리우레탄에 관한 것이다. 본 발명은 또한 본 발명에 따른 발포 폴리우레탄을 포함하는 몰딩, 본 발명에 따른 발포 폴리우레탄의 제조 방법 및 신발 밑창으로서의 본 발명에 따른 몰딩의 용도에 관한 것이다. The present invention relates to a composition comprising (a) a polyisocyanate, (b) a relatively high molecular weight compound having reactive groups for the isocyanate group, (c) solid particles, (d) a blowing agent, (e) a chain extender, Wherein the ratio of the chain extender is in the range of from a (a) to (b), (b) a mixture of (F) based on the total weight of components (a) - (f), wherein the content of solid particles is greater than 15 weight percent based on the total weight of components (a) Wherein the average functionality of the molecular weight compound is less than 2.5. The invention also relates to a molding comprising a foamed polyurethane according to the invention, a process for the production of the foamed polyurethane according to the invention and the use of the molding according to the invention as a shoe soles.

Polyurethane integral foams with improved surface hardness

Preparing a polyurethane molding comprises: mixing (a) organic polyisocyanate with (b) polyol, (c) water absorbing polymer, (d) blowing agent comprising water, (e) optionally catalyst, (f) optionally chain extenders and/or crosslinking agents and (g) optionally devices and/or additives, to obtain a reaction mixture; introducing the reaction mixture into a mold and allowing to form the polyurethane moldings. An independent claim is included for the polyurethane molding obtained by the process.

Polyurethane integral foams with improved surface hardness

Die vorliegende Erfindung betrifft Polyurethanformkörper mit hoher Oberflächenhärte, die hergestellt werden können durch Vermischen von (a) organischem Polyisocyanat mit (b) Polyol, (c) Wasserabsorbierendes Polymer, (d) Treibmittel Wasser, gegebenenfalls (e) Katalysator, gegebenenfalls (f) Kettenverlängerungsmittel und/oder Vernetzungsmittel, und gegebenenfalls (g) sonstigen Hilfsmitteln und/oder Zusatzstoffen zu einer Reaktionsmischung, Einbringen der Reaktionsmischung in eine Form und Ausreagieren lassen der Reaktionsmischung zum Polyurethanformkörper. The present invention relates to polyurethane moldings with high surface hardness, which can be produced by mixing (a) organic polyisocyanate with (b) polyol, (c) water-absorbing polymer, (d) water blowing agent, optionally (e) catalyst, optionally (f) chain extender and / or crosslinking agents, and optionally (g) other auxiliaries and / or additives to a reaction mixture, introducing the reaction mixture into a mold and allowing the reaction mixture to react to form the polyurethane molding.

viscoelastic foams

本发明实施方案提供粘弹性聚氨酯泡沫体。该泡沫体由包括(a)异氰酸酯反应性组分、(b)异氰酸酯组分、(c)一种或多种发泡剂、(d)催化剂组分和(e)基于有机硅的表面活性剂的反应体系来制造。该异氰酸酯反应性组分至少包括：(i)25到80wt%的至少一种聚氧乙烯封端的聚氧丙烯/聚氧乙烯多元醇，其具有的总数均当量为1300到1700，聚氧乙烯百分比为75%到95%，按聚氧丙烯和聚氧乙烯的总量的重量计，和伯OH百分比为80到95%，基于聚氧乙烯封端的聚氧丙烯/聚氧乙烯多元醇的OH基团的总数计；和(ii)5到30wt%的具有至少一种低官能度多元醇的异氰酸酯反应性组分，其官能度为1.5到2.5，总数均当量为500到1500和OH值是40到70。

Polyurethane Elastomers Prepared from Aliphatic Polyisocyanates and Polyester Ether Polyols

본 발명은 폴리이소시아네이트와 폴리에스테르폴리에테르 폴리올(디에스테르-폴리에테르 디올)을 반응 사출 성형법(RIM)을 사용하여 반응시켜 제조한 폴리우레탄 엘라스토머에 관한 것이다. The present invention relates to a polyurethane elastomer prepared by reacting a polyisocyanate with a polyester polyether polyol (diester-polyether diol) using a reaction injection molding method (RIM).

FOAM POLYURETHANES WITH IMPROVED FATIGUE STRENGTH AT REPEATED BENDING

1. Пенополиуретан, полученный смешиванием: ! a) полиизоцианатов, ! b) высокомолекулярных соединений с группами, реакционноспособными по отношению к изоцианатным группам, ! c) частиц твердого вещества, ! d) порообразователя, ! e) при необходимости, агента удлинения цепи, сшивающего агента или их смеси, ! f) при необходимости, катализатора и ! g) при необходимости, прочих добавок ! с образованием реакционной смеси и осуществлением реакции, отличающийся тем, что ! - содержание агента удлинения цепи составляет менее 6 мас.% в расчете на общую массу компонентов от а) до f), ! - содержание частиц твердого вещества составляет более 15 мас.% в расчете на общую массу компонентов от а) до f), ! - средняя функциональность высокомолекулярных соединений с группами, реакционноспособными по отношению к изоцианатным группам, составляет менее 2,5. ! 2. Пенополиуретан по п.1, отличающийся тем, что твердое вещество содержит группы, реакционноспособные по отношению к изоцианату. ! 3. Пенополиуретан по п.2, отличающийся тем, что твердое вещество является диспергированным в высокомолекулярных соединениях с группами, реакционноспособными по отношению к изоцианатным группам. ! 4. Пенополиуретан по п.3, отличающийся тем, что твердым веществом является радикально полимеризованный полимер. ! 5. Пенополиуретан по п.1, отличающийся тем, что содержание диольной составляющей высокомолекулярных соединений с группами, реакционноспособными по отношению к изоцианатным группам (b), составляет более 80% мас. в расчете на общую массу высокомолекулярных соединений с группами, реакционноспособными по отношению к изоцианатным группам (b). ! 6. Пенополиуретан по п.1, отлича� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 123 992 (13) A (51) МПК C08G 18/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): БАСФ СЕ (DE) (21)(22) Заявка: 2010123992/04, 13.11.2008 Приоритет(ы): (30) Конвенционный приоритет: 14.11.2007 EP 07120716.1 R U (54) ПЕНОПОЛИУРЕТАНЫ С ...

Microcellular polyurethane elastomers

Method of manufacturing molded cellular polyurethane products

FIELD: polymer materials. SUBSTANCE: molded cellular polyurethane products with dense surface are manufactured by interaction, in closed molds, of (i) polyisocyanate component containing 18-33.6 wt % isocyanate groups and consisting of at least one optionally modified diphenylmethane-based polyisocyanate or polyisocyanate mixture with (ii) polyol component with average hydroxyl function index 2-3 consisting of at least one polyether polyol with molecular weight 2000 to 10000 and/or at least one polyester polyol with molecular weight 2000 to 10000 and (iii) at least one bifunctional (with respect to polyaddition of isocyanate) compound with molecular weight from 62 to 1999 in amount from 2 to 15% of the weight of polyol component in presence of blowing agent and other auxiliary components known in the art. Above-mentioned blowing agent is substituted ammonium carbamate with general formula I: (I) where R 1 is hydrogen, C 1 -C 5 -alkyl, or residue having general formula A: (A), in which R 2 and R 3 , same or different, are hydrogen or C 1 -C 3 -alkyl, and n=2-6, in amounts 0.1 to 6% based on the weight of polyol component. EFFECT: improved strength and contraction characteristics of products. 4 cl, 2 ex сс с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ "” 2438 523 ' С 08 3 9/08, С 08 С 18/32, 13) СЛ 18/66//С 08 Е 75:04 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 94040143/04, 03.11.1994 (24) Дата начала действия патента: 03.11.1994 (30) Приоритет: 04.11.1993 ОЕ Р 43375693 (46) Дата публикации: 21.09.1999 (56) Ссылки: ЕР 0121850 А2, 1984. ЕР 0236895 А2, 1987. Ц 31242Ъ А, 1912. (98) Адрес для переписки: 103064, Москва, ул.Казакова, 16, НИИР-Канцелярия "Патентные поверенные Квашнин, Сапельников и Партнеры" (71) Заявитель: Байер АГ (ОЕ) (72) Изобретатель: Ганс Вебер (ОЕ), Петер Хаас (0Е), Эрхард Михельс (ОЕ) ‚, Кристиан Вебер (ОЕ), Клаус Брехт (0Е) (73) Патентообладатель: Байер АГ (ОЕ) (54) СПОСОБ ПОЛУЧЕНИЯ ...

Method for producing foamed polyurethane molded article without using CFC

POLYOLS OF SIMPLE AND COMPLEX POLYESTERS AND METHOD FOR PRODUCING THEM

1. Способ получения полиола простого и сложного полиэфиров, в котором смесь (A) из, по меньшей мере, одного активного по Церевитинову соединения i), по меньшей мере, одного соединения ii), выбранного из группы, содержащей циклические ангидриды дикарбоновых кислот, по меньшей мере, одного сложного эфира жирной кислоты iiib), а также, при необходимости, по меньшей мере, одного соединения iv), выбранного из группы, содержащей циклические сложные моно- и диэфиры, подвергают взаимодействию, по меньшей мере, с одним алкиленоксидом v), в присутствии нуклеофильного и/или основного катализатора, причем, по меньшей мере, одно активное по Церевитинову соединение i) выбрано из группы гидрокси- и/или аминофункциональных соединений с функциональностью в диапазоне между 1 и 8, сложный эфир жирной кислоты iiib) выбран из группы, содержащей сложные эфиры жирной кислоты, которые не содержат гидроксильных групп, и смеси из них, а нуклеофильный или основный катализатор выбран из группы, включающей третичные амины.2. Способ по п. 1, причем смесь (A) подают в реакционную емкость вместе с нуклеофильным и/или основным катализатором перед добавкой, по меньшей мере, одного алкиленоксида v).3. Способ по п. 1 или 2, причем циклический ангидрид ii) дикарбоновой кислоты выбран из группы, содержащей a) ангидриды алкенилянтарной кислоты, b), ангидрид фталевой кислоты, c) ангидрид малеиновой кислоты, d) ангидрид янтарной кислоты, а также e) ангидрид тетрагидрофталевой кислоты, а также смеси из них.4. Способ по п. 3, причем, по меньшей мере, один ангидрид алкенилянтарной кислоты a) выбран из группы, содержащей ангидриды C18- и/или C16- алкенилянтарной кислоты, ангидрид поли(изобутилен)янтарной кислоты и смеси из них.5. Способ по п. 1 или 2, причем, по ме РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C08G 18/00 (13) 2014 134 384 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014134384, 14.01.2013 (71) Заявитель(и): БАСФ СЕ (DE) Приоритет(ы): ...

Water blown polyurethane soling systems

This invention relates to molded articles comprising micro cellular polyurethane foams, preferably integral skin foams. These exhibit improved properties and are particularly suitable for soling systems in footwear. The present invention also relates to a process for the production of these molded articles. These molded articles comprise the reaction product of (A) an isocyanate comprising a stable, liquid MDI based prepolymer containing an allophanate-modified MDI, with (B) an isocyanate reactive component, in the presence of (C) at least one blowing agent.

POLYETHER-POLYCARBONATE-DIOLE, THEIR PRODUCTION AND USE AS STARTING PRODUCTS FOR POLYURETHANE PLASTICS

Highly-reactive polyoxyalkylenepolyols with bound tertiary amino groups, method for their production and their use in the production of polyisocyanate-polyaddition products

The invention relates to highly reactive polyoxyalkylenepolyols prepared by oxalkylation of an initiator molecule containing at least 2 reactive hydrogen atoms and at least one tertiary amino group bonded via a spacer bridge, which preferably comprises an alkylene radical having at least 3 carbon atoms, by means of at least one alkylene oxide, preferably ethylene oxide and/or 1,2-propylene oxide, to a process for the preparation of these polyoxyalkylenepolyols, and to their use for the preparation of compact or cellular, preferably flexible, polyisocyanate polyaddition products.

Highly reactive polyoxyalkylene-polyols containing tertiary amino groups in bonded form, their preparation, and their use for the preparation of polyisocyanate polyaddition products

The invention relates to highly reactive polyoxyalkylene-polyols prepared by oxyalkylation of an initiator molecule containing, in bonded form, at least 2 reactive hydrogen atoms and at least one tertiary amino group bonded via a spacer bridge, which preferably comprises an alkylene radical having at least 3 carbon atoms, by means of at least one alkylene oxide, preferably ethylene oxide and/or 1,2-propylene oxide, to a process for the preparation of these polyoxyalkylene-polyols, and to their use for the production of compact or cellular, preferably flexible polyisocyanate polyaddition products.

Foam formulations

Embodiments of the present disclosure are foam formulations. As an example, foam formulation can include a polyol composition having an amine-imitated polyol that is from 10 percent to 20 percent of a total weight of the polyol composition and an additional polyol that is from 80 percent to 90 percent of the total weight of the polyol composition, a polyisocyanate, a blowing catalyst, and a gel catalyst, where a combination of the blowing catalyst and the gel catalyst is from 0.5 percent to 1.5 percent the total weight of the polyol composition and where the blowing catalyst is from 50 percent to 100 percent of a total weight of the blowing catalyst and the gel catalyst.

Foam formulations

Embodiments of the present disclosure are foam formulations. As an example, foam formulation can include a polyol composition having an amine-imitated polyol that is from 10 percent to 20 percent of a total weight of the polyol composition and an additional polyol that is from 80 percent to 90 percent of the total weight of the polyol composition, a polyisocyanate, a blowing catalyst, and a gel catalyst, where a combination of the blowing catalyst and the gel catalyst is from 0.5 percent to 1.5 percent the total weight of the polyol composition and where the blowing catalyst is from 50 percent to 100 percent of a total weight of the blowing catalyst and the gel catalyst.

Process for the production of low-fogging polyurethane foams and special polyoxyalkylene polyols that can be used for this

Process for the preparation of heat-resistant polyurethane-urea elastomers

Die Erfindung betrifft ein technisch vereinfachtes Verfahren zur Herstellung von Polyurethanharnstoff-Elastomeren, bei der hochschmelzende, in fester Phase vorliegende aromatische Diamine mit Polyisocyanaten bzw. Isocyanat-Prepolymeren in heterogener Reaktion umgesetzt werden. The invention relates to a technically simplified process for the production of polyurethane urea elastomers, in which high-melting aromatic diamines in the solid phase are reacted with polyisocyanates or isocyanate prepolymers in a heterogeneous reaction.

Process for the preparation of highly elastic polyurethane foams

The prodn. of highly elastic polyurethane (PU) foam comprises reacting (A) polyisocyanates with (B) cpds. with a mol. wt. of 500-10000, contg. at least two NCO-reactive H atoms and (C) cpds. of formula (a), where m = 0-2; n = 1-3; and X = H or Me; and opt. (C1) other cpds. with at least two NCO-reactive H atoms, with a mol. wt. of 32-499, in the presence of (D) water and/or readily volatile organic blowing agents, and opt. in presence of (E) filler-contg. polyols of the SAN-, PHD- and PIPA-polyol type and (F) known additives etc. Component (B) is a polyol mixt. contg. (B1) polyether-polyol(s) with a functionality of 3.5-8, pref. 4-8, esp. pref. 5-7, an equiv. wt. of 500-4000, and an ethylene oxide (EO) content of 10-30 (pref. 15-25) wt.%, contg. mainly prim. OH gps., and (B2) polyether-polyol(s) with a functionality of 2-8, pref. 3-6, an equiv. wt. of 200-3000, pref. 250-2500, and an EO content of 50-95 wt.%, contg. mainly prim. OH gps. Also claimed is filler-free, flexible and highly elastic PU foam obtd. by this process.

Physically reinforced hydrophilic foam and method of preparing same

RESILIENT, RELATIVELY DENSE, OPEN-CELLED, FILLED POLYOXYALKYLENE/POLYISOCYANATE FOAM COMPOSITIONS OF HIGH RESISTANCE TO BOTTOMING OUT WHICH ARE HIGHLY HYDROPHILIC AND DIMENSIONALLY STABLE WITH ABSORPTION OF WATER, AND A PROCESS FOR THE PREPARATION OF THESE COMPOSITIONS.

Cold, one-shot prepn. of polyurethane foams - using unmodified diisocyanate and specific polyether polyols

Flexible or semi-rigid polyurethane foams with(out) integral skin are prepd. cold by the one-shot method, by moulding a free expansion, by reacting polyisocyanats (I) polyether-polyols (II) a blowing agent and a catalyst, the reaction being characterised by (I) being a pure, ie. unmodified diisocyanate, and (II) being prepd. by oxyalkylation of polyalcohol(s) of functionality >=4, alternately or mixed, by alkylene oxide(s) to give (II) with an OH value =37, and having a terminal ethylene oxide content 10% by wt. the majority of the OH gps. being primary. The process allows the prepn. of industrially exploitable polyurethane foams by the cold, one-shot method, which has not been possible in prior art. The prod. has characteristics approximately those of latex.

Polyurethane foam prepd. from poly:hydroxylated polyether - and small amt. of mono:hydroxy deriv. to improve mould release property of prod.

Polyurethane foams are prepd. by reaction between a polyisocyanate, a polyol based on a polyhydroxylated polyether, and a porogenic agent. The polyl contains a minor proportion of a monhydroxyl deriv. the ratio (k) of the wt. of this deriv. to the total wt. of hydroxyl derivs. in the mixt. being 0.1 x 10-2 to 16 x 10-2. Polymethane foams prepd. in this way are more easily removed from moulds, esp. silane-based moulds, than previously known foams, so that considerably more moulded objects can be prod. from the same mould.

Water-blown polyurethane integral skin foam

The invention relates to water blown integral skin polyurethane foams made with a particular isocyanate quasi-prepolymer and resin side ingredients to yield a foam having good overall mechanical properties. The isocyanate quasi-prepolymer component of the present invention comprises from 0.5 weight percent to 30.0 weight percent or less uretonimine-carbodiimide-modified diphenylmethane diisocyanate, from 50 weight percent to 80 weight percent 4,4'-diphenylmethane diisocyanate and reacted with from 15 weight percent to 40 weight percent of a polyether polyol containing predominately secondary hydroxyl groups and having an average molecular weight from about 2,000 to 10,000, and an average functionality from 1.5 to about 3.2. The resin side component comprises a high molecular weight polyether compound having isocyanate reactive hydrogens and average molecular weights from about 2,000 to about 10,000 and an average functionality from 1.5 to about 3.2, water as a blowing agent in an amount of from 0.25 weight percent to 3 weight percent, an effective amount of polyurethane and/or polyurea promoting catalyst, a surfactant, and a chain extender. The components, when injected or poured into a preheated mold, can tolerate mold temperatures from 105°F to 135°F and can be demolded in less than 150 seconds to yield an integral skin foam having little or no bubbles or pores visible to the eye. The foam produced thereby as a compressing set of 30 percent or less, high tensile strength, and high tear strength.

Polyurethane forming compsns - for upholstery or coating foams

Compsns. comprise >=1 polyfunctional polyisocyanate e.g. diphenylmethane diisocyanate) a cpd. reactive therewith (e.g. a polyol) and 4-chloro-m-phenylene diamine (I) as chain extender. Use of (I) eliminates the conventional potentially carcinogenic methylene-bis-o-chloraniline.

Crosslinker-surfactant for semiflexible energy management polyether polyurethane foams

CROSSLINKER-SURFACTANT FOR SEMIFLEXIBLE ENERGY MANAGEMENT POLYETHER POLYURETHANE FOAMS (D#75,864-F) ABSTRACT OF THE DISCLOSURE The incorporation of a crosslinker comprising an ethylene oxide adduct of a Mannich condensate of nonyl phenol, diethanolamine and formaldehyde in molded poly-urethane semiflexible foams is disclosed. Semiflexible polyurethane foams incorporating this crosslinker result in foams which offer many advantages including a significant improvement in moldability characteristics and materials utilization as well as other advantages. These improvements are demonstrable over similar formulations using other cross-linkers. The resulting foams find use in energy absorbing applications in the automotive industry and other industries.

Composition for forming polyisocyanurate foam, polyisocyanurate foam, and thermal insulating material

Provided is a composition for forming a polyisocyanurate foam having excellent surface quality of a formed article, particularly, a polyisocyanurate foam having excellent smoothness.The invention is a composition for forming a polyisocyanurate foam, the composition comprising: a polymer having a hydroxy group; a polyisocyanate; and a foaming agent, in which the foaming agent comprises a hydrofluoroolefin; the polymer having a hydroxy group contains a polyester alcohol, and a polyether polyol having a hydroxyl value of 350 to 700 mgKOH/g and obtained by adding propylene oxide to a trifunctional polyol as a starting substance; the amount of the polyester alcohol is 15 parts by mass or more relative to 100 parts by mass of the composition; and the amount of the polyether polyol is 0.2 to 5 parts by mass relative to 100 parts by mass of the composition.

PROCESS FOR PRODUCING A FLEXIBLE POLYURETHANE MOLDED PRODUCT

Patent FR2185651B3

Patent FR2162587A1

Patent FR2059062A5

Patent FR2073958A5

Integral skin rigid urethane foam

The present invention relates to an integral skin rigid polyurethane foam having improved compressive strength and flexural strength. This foam is prepared by reacting a polyol resin component with an aromatic isocyanate using water as an auxiliary blowing agent.

Patent FR2162587B1

Coarse-cell polyurethane elastomers

The invention relates to an open-cell polyurethane foam containing polyester and polyether structures with a density of 70 to 300 g/L, 1 to 20 cells/cm, an impact resilience of more than 30%, a strain at break of more than 200%, a tear propagation strength of more than 1.2 N/mm and a tensile strength of more than 200 kPa. The invention further relates to a method for producing open-cell polyurethane sponges and to their use as pipe cleaning sponges.

Method for preparing microcellular polyurethane elastomers with integral skins using a combination of tertiary amine organomercury compound and organolead as catalyst

THIS INVENTION RELATES TO A METHOD FOR PREPARING MICROCELLULAR ELASTOMERS HAVING INTEGRAL SKINS WHICH ARE SUBSTANTIALLY NON-POROUS, SAID METHOD COMPRISING CONTACTING A MIXTURE OF SPECIFIED POLYOLS WITH METHYLENE BIS(4-PHENYL-ISOCYANATE) IN THE PRESENCE OF A BLOWING AGENT AND A CATALYST SYSTEM CONSISTING OF A TERTIARY AMINE, AN ORGANOMERCURY COMPOUND, AND AN ORGANOLEAD COMPOUND.

Process for preparing polyurethane foams using polyacrylate polyols

PROCEDURE FOR PREPARING A POLYISOCYANURATE FOAM.

Rigid polyurethane foam containing polyester residue digestion product

ABSTRACT Rigid polyurethane foam is produced from polyisocyanate and polyol wherein 5-30% by weight of the polyol ingredient is a digestion product of polyalkylene terephthalate residues or scraps digested with organic polyols. The resulting rigid polyurethane foam exhibits uniform density and, when compared with a corresponding polyurethane foam which does not include the said digestion products, exhibits equivalent or superior physical strength properties. With fire re-tardant rigid polyurethane foams wherein the organic polyol ingredient includes halogenated organic polyols, use of 5-30% by weight of the said digestion product in the organic polyol ingredient achieves a rigid fire retardant poly-urethane foam having a lower flame spread and a lower smoke generation than a corresponding polyurethane foam which does not include the said digestion product. When fabricated in a closed mold, the present rigid polyurethane foam has a more uniform density, i.e., a higher core density, than corresponding rigid polyurethane foams which do not include the said digestion product.

METHOD FOR THE PRODUCTION OF FLAME-RESISTANT, COLD TOE POLYURETHANE FOAMS AND THE USE THEREOF AS THE INTERNAL LINING OF STORAGE TANKS

A process for the production of plastics containing amide groups

Described is a method of producing by splitting off CO2, plastics containing amide groups, by reacting polyfunctional isocyanates, carboxylic acids plus, optionally, alcohols in the presence of tertiary amines, in particular hereto-aromatic amines. The hetero-aromatic amines preferably contain an additional hereto-atom and/or substituents with + I and/or + M effects. The reaction preferably starts at room temperature and can be used to prepare fine-celled foam materials with an acid number of less than 40 and a maximum gross density of 150 g/l within short reaction times at room temperature and without using foaming agents.

Process for the preparation of highly elastic polyurethane foams

Polyether-polycarbonate diols and processes for their production and use

Mo-3036 LeA 24,860 POLYETHER-POLYCARBONATE DIOLS AND PROCESSES FOR THEIR PRODUCTION AND USE ABSTRACT OF THE DISCLOSURE Polyether polycarbonate diols based on 1,6-hexanediol and having a molecular weight of from 500 to 12,000 are made by etherifying 50-100 mole % 1,6-hexane-diol in the presence of 0-50 mole % of specified diols and reacting the resultant polyether with a compound selected from diarylcarbonates, dialkyl carbonates, dioxolanones, hexanediol bischlorocarbonic acid esters, phosgene and urea. These diols are particularly useful in the production of polyurethanes having improved physical properties. Mo-3036

Polyurethane foam

Process for the preparation of molded polyurethane foams and the molded foams obtained by this process

Mo-3464 LeA 27,266 A PROCESS FOR THE PREPARATION OF MOLDED POLYURETHANE FOAMS AND THE MOLDED FOAMS OBTAINED BY THIS PROCESS ABSTRACT OF THE DISCLOSURE This invention relates to a process for the preparation of molded polyurethane foams having a compact skin and having a density of at least 250 kg/m3 comprising in-mold foaming at an isocyanate index of 75 to 1500 a reaction mixture of (a) a polyisocyanate component containing at least one aromatic polyisocyanate, (b) an isocyanate-reactive component containing at least one organic polyhydroxyl compound, (c) a blowing agent comprising a salt of (i) an organic carboxylic acid and (ii) a nitrogen base containing at least one N-H bond, with the proviso that the blowing agent (c) cannot be a compound formed in situ by interaction of the organic carboxylic acid with a difunctional or polyfunctional amine. Mo-3464

Production of chlorofluorocarbon-free, urethane-containing moldings having a cellular core and a compacted peripheral zone

A process for the production of chlorofluorocarbon-free, urethane- or urethane- and urea-containing, soft-elastic, semirigid or rigid moldings having a cellular core and a compacted peripheral zone and an essentially pore-free, smooth surface involves reacting a) an organic and/or modified organic polyisocyanate with b) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and, if desired, c) a low-molecular-weight chain extender and/or cross-linking agent, in the presence of d) a blowing agent, e) a catalyst, f) at least one microporous activated charcoal and/or microporous carbon molecular sieve which preferably has a mean pore diameter with a frequency of occurrence of more than 40% in the range from 0.3 to 3 nm, a pore volume of from 0.20 to 1.4 ml/g and a BET surface area of from 500 to 2500 m 2 /g, and, if desired, further additives and g) assistants, in a closed mold with compaction.

Patent FR2135266A1

Rigid polyurethane foam with a thin non-porous skin

Process for the preparation of polyurea elastomers containing urethane groups

The present invention relates to a process for the production of an optionally cellular elastomeric molded article having a compact surface and based on a polyurea elastomer containing urethane groups which is the reaction product of a) a polyisocyanate component based on a polyisocyanate of the diphenylmethane series, b) a polyol component based on a polyether polyol, a polyester polyol or mixtures thereof and c) a polyamine component containing 1) 50 to 95% by weight, based on the weight of component c), of at least one sterically hindered aromatic diamine and 2) 5 to 50% by weight, based on the weight of component c), of at least one compound which has a molecular weight of about 1,000 to 12,000, by reacting component a) with at least 90% by weight of component b) at an NCO/OH equivalent ratio of at least 4:1 to form an NCO semi-prepolymer and subsequently reacting the NCO semi-prepolymer with component c) and the remainder of component b) by the reaction injection molding process to form the polyurea elastomer containing urethane groups, component c) being present in an amount sufficient to provide an isocyanate index, based on the reactive groups of components a), b) and c), of 10 to 130.

Process for the preparation of molded parts containing urethane groups, devoid of fluorchlorohydrocarbons, having a cellular core and a compact outer layer

Process for making a flexible polyurethane foam having a hardness gradient

A molded flexible polyurethane foam having a hardness gradient going from soft to hard from the top to the bottom of the foam. The hardness gradient in the foam is a result of a foam elasticity gradient which arises from a polymer elasticity gradient and/or density gradient. A method for producing a flexible foam having a hardness gradient and a reactive mixture suitable for making said flexible foam is disclosed. Furthermore, the use of the flexible foams having a hardness gradient in matrasses, cushions for seating (more in particular for use in automotive seating), furniture, automotive under-carpets and dash insulators is disclosed.

A polyurethane composite, its preparation and use

A polyurethane composite is disclosed comprising rigid polyurethane and foamed thereupon a flexible integral skin (surface pore closed) polyurethane foam, wherein the rigid polyurethane having a density range of 600kg/m 3 to 1200kg/m 3 , a Shore A hardness range of 90 to 99, a Shore D hardness range of 40 to 80, a tensile strength range of 10MPa to 60MPa, a flexural strength range of 20MPa to 60Mpa, a elastic flexural modulus range of 800MPa to 2500Mpa, an elongation rate at break of 10-100% and an elongation at break of 25-150%; wherein the flexible integral skin (surface pore closed) polyurethane foam having a density range of 60kg/m 3 to 200kg/m 3 , a tensile strength of 60kPa to 250kPa, an elongation at break of 70-180%, a tearing strength of 130-220N/m, a resilience of falling ball of 40-70%, IFD25% of 200-600 N and IFD65% of 600-1800 N.

Interior automotive trim material and its manufacture method

本发明的目的在于提供一种薄壁且触感良好的汽车用内装材料，特别是仪表板。本发明是在树脂制表皮材料和基材之间将聚氨酯发泡层一体成型的聚氨酯一体发泡成型的汽车用内装材料，该汽车用内装材料的聚氨酯发泡层的厚度为2.5～6.0mm，聚氨酯发泡层是由多元醇混合物(P)和聚异氰酸酯成分(B)构成的混合液形成的发泡体，多元醇混合物(P)含有多元醇(组合物)(A)、含有水的发泡剂(C)和催化剂(D)，发泡剂(C)的含量以(A)的合计重量为基准计为1.5～2.5重量％，树脂制表皮材料的厚度为0.6～1.0mm，表皮表面在10N的负载下位移0.40mm以上，在40N的负载下位移1.5～2.5mm。

POLYURETHANE FORMING COMPOSITIONS

Isocyanate composition

The present invention relates to water-blown integral skin polyurethane foam compositions, molded polyurethane articles, a process of preparing said articles, and an isocyanate composition for use therein. In particular, the invention relates to water-blown integral skin molded polyurethane articles having particularly advantageous physical properties, and compositions useful for producing such articles. In particular, the invention provides a polyurethane composition which has an isocyanate component (a) an isocyanate reactive component (b), a blowing agent comprising water (c), a polyether (d) selected from the group consisting of polytetrahydrofuran and polyethylene glycol having a number average molecular weight of from 200 to 2000 and optionally, one or more additives (e) from the group consisting of catalysts, chain extenders, oxo alcohols, and mixtures thereof. The composition may be characterized in that the integral skin polyurethane articles made of the composition have a tensile strength of greater than or equal to 450 psi and/or a Taber abrasion (mg loss) of less than 200

Low density polyurethane microcellular elastomer

본 발명은 200 내지 500 g/d㎥의 밀도를 가진 폴리우레탄 폼 몰딩의 제조 방법으로서, a) 적어도 하나의 유기 폴리이소시아네이트(a1), 적어도 하나의 제1 폴리에스테롤(a2), 및 에틸렌옥시드를 포함한 알킬렌옥시드를 가진 스타터 분자의 알콕실화로부터 얻어지는 적어도 하나의 폴리에테롤(a3)을 반응시켜 얻어질 수 있는 폴리이소시아네이트 프리폴리머로서, 여기서 폴리에테롤(a3)은 히드록실가가 20 내지 65 mg KOH/g 범위이고, 수평균 분자량이 2000 내지 6000이며, 작용가가 1.7 내지 3.0이고 에틸렌옥시드 단위의 함량이 폴리에테롤(a3)의 총 중량을 기준으로 13 내지 30 중량% 범위이며 폴리에테롤(a3)의 함량은 유기 폴리이소시아네이트 프리폴리머(a)의 총 중량을 기준으로 3 내지 15 중량% 범위인 폴리이소시아네이트 프리폴리머를, b) 적어도 하나의 제2 폴리에스테롤, c) 발포제 및 경우에 따라 d) 사슬 연장제 및/또는 가교제, e) 촉매 및 f) 다른 보조제 및/또는 첨가제와 혼합하여 반응 혼합물을 형성하고, 이를 금형 내에 도입하고 반응하도록 하여 폴리우레탄 폼 몰딩을 형성하는 것인 제조 방법에 관한 것이다. 본 발명은 추가로 본 발명에 따른 방법으로부터 얻어지는 폴리우레탄 폼 몰딩 및 신발 밑창으로서 본 발명에 따른 폴리우레탄 폼 몰딩의 용도에 관한 것이다.

Porous-object production method

A method for producing a porous material includes processing a urethane resin composition containing a urethane resin (A) and a solvent (B) by a wet film forming process, in which the solvent (B) satisfies the following conditions: a difference between a Hansen solubility parameter of the solvent (B) (B-HSP) and a Hansen solubility parameter of the urethane resin (A) (A-HSP) is in the range of 3 to 8 (J/cm 3 ) 1/2 and a difference between the Hansen solubility parameter of the solvent (B) (B-HSP) and a Hansen solubility parameter of water (W-HSP) is in the range of 31.5 to 38 (J/cm 3 ) 1/2 . The Hansen solubility parameter of the solvent (B) preferably has a dispersion term (δD) in the range of 15.5 to 21.0 MPa 0.5 , a polar term (δP) in the range of 7.0 to 14.5 MPa 0.5 , and a hydrogen bond term (δH) in the range of 4.5 to 11.0 MPa 0.5 .

Manufacturing process of molded plastic foam parts covered with a skin

Production of molded body

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Water blown integral skin polyurethane foams

The present invention is directed to an integral skin foam prepared by reacting a specific isocyanate, a specific isocyanate reactive component and water as the only blowing agent.

Flame proofing agents for polyurethanes, a method for the production of flame proof polyurethane plastics and their use in rail vehicle construction

The invention relates to flame proofing agents for polyurethanes, consisting of red phosphor and melamine and/or a melamine derivative in a weight ratio of 1:7.5 to 1:100, and a method for the production of flame proof polyurethane plastics, in which organic polyisocyanates are reacted with compounds with at least two hydrogen atoms which are capable of reacting with isocyanates and have a molecular weight of 250 to 12,500, possibly with cross-linkers with at least two hydrogen atoms which are capable of reacting with isocyanates and have a molecular weight of 32 to 249, possibly with filling materials, blowing agents, stabilizers, activators and/or other known auxiliary and additive agents in the presence of a mixture of red phosphor and melamine and/or a melamine derivative with a weight ratio of red phosphor to melamine and/or melamine derivative of 1:7.5 to 1:100. The usage of these flame proof polyurethane plastics in rail vehicle construction is also described.

Panel material of cab of high-speed train and preparation method of panel material

本发明涉及一种高铁动车司机室面板材料，其特征在于：所述材料配方组成为：异氰酸酯35-45%、聚醚多元醇40-50%、磷酸酯阻燃剂1-3%、三乙烯二胺催化剂0.5-2%、双（二甲氨基乙基)醚催化剂0.5-2%、增韧剂1-3%、交联剂2-6%、增硬剂1-3%、流平剂1-3%、固化剂0.1-2%、起泡剂0.1-2%。采用的该配方制成的高密度聚氨酯发泡面板材料，其具有较高的电气强度，密度、阻燃、环保等方面均能满足要求高铁动车司机室面板材料使用要求。且其制备方法简单，可大大降低制造成本，且克服了玻璃钢生产过程中环境污染严重的缺陷。

COMPOSITIONS AND STRUCTURES OF POLIU RETANI AND PROCEDURE FOR THEIR PREPARATION

Production of expanded thermoplastic elastomer

本發明係關於一種用於製造膨脹熱塑性彈性體之方法，該方法包含以下步驟：(a)在存在或不存在其他起始材料之情況下，將用於製造該熱塑性彈性體之單體及/或寡聚物添加至聚合物加工機之第一階段中，(b)在該聚合物加工機之第一階段中，將該等單體及/或寡聚物以及視情況添加之其他起始材料混合且使該等單體及/或寡聚物反應以產生聚合物熔體，(c)將該聚合物熔體傳送至聚合物加工機之第二階段中且在存在或不存在其他起始材料之情況下添加物理發泡劑以獲得包含發泡劑之聚合物熔體，(d)將該包含發泡劑之聚合物熔體模製成膨脹熱塑性彈性體。

Heat-curing polyether-polyester-polyurethane ureas

Mo3489 LeA 27,346 HEAT-CURING POLYETHER-POLYESTER-POLYURETHANE UREAS ABSTRACT OF THE DISCLOSURE The present invention relates to heat-curable reaction systems prepared by mixing (a) solid polyisocyanates (optionally deactivated) having melting points above 80°C, (b) OH- and/or NH2-terminated polyoxyalkylene polyethers that have molecular weights of 400 to 10,000 and are liquid at room temperature, (c) solid OH- and/or NH2-terminated polyesters that have molecular weights of 400 to 20,000 and are solid at room temperature, and which are thoroughly distributed throughout the mixture but are not homogeneously miscible with the polyether, (d) optional low molecular weight chain-extending agents that contain OH and/or NH2 groups and have a molecular weight of 62 to 399, and (e) optional catalysts and other auxiliaries. The invention further relates to a method for preparing elastomers, coating compounds, sealing compounds, or adhesives by heat-curing the heat-curable systems. Mo3489