УСТРОЙСТВО И СПОСОБ ДЛЯ ПРЕДМОНТАЖНОГО РАСШИРЕНИЯ

Группа изобретений относится к устройству и способу предмонтажного расширения. Устройство для предмонтажного расширения на месте установки включает средство приложения давления, образующее расширяемую в радиальном направлении внутреннюю поверхность и плоскую поверхность, протяженную в радиальном направлении наружу от расширяемой в радиальном направлении внутренней поверхности. При этом устройство содержит эластомерную трубку, имеющую передний конец, расположенный напротив заднего конца, и осевое отверстие, протяженное через нее и выполненное с возможностью принимать поддерживающую сердцевину. Также устройство содержит адаптер, имеющий ступенчатую часть, образованную цилиндрической наружной поверхностью и плоской поверхностью, протяженной в радиальном направлении наружу от цилиндрической наружной поверхности, и протяженное через него осевое отверстие, которое имеет диаметр, в сущности равный диаметру осевого отверстия эластомерной трубки. При этом адаптер расположен в сущности соосно с эластомерной ...

БАЛЛИСТИЧЕСКИЕ КОМПОЗИТЫ С ПОВЫШЕННОЙ ГИБКОСТЬЮ И СПОСОБ ИХ ИЗГОТОВЛЕНИЯ

Изобретение относится к композитному материалу с исключительно высокими баллистическими свойствами и повышенной гибкостью. Гибкий баллистически устойчивый композит содержит комбинацию поли(альфа-олефиновых) волокон и матричной смолы. Матричная смола представляет собой блок-сополимер сопряженного диена с винилароматическим мономером, которую наносят в виде водной композиции. Волокно обладает прочностью по меньшей мере 35 г/денье и модулем упругости на растяжение по меньшей мере 1200 г/денье. Композит обладает общей плотностью, равной или менее 100 г/м2, и жесткостью менее 2.5 фунт (1.14 кг) для двухслойной структуры композита и общей поверхностной плотностью, равной или менее 190 г/м, и жесткостью менее 3.0 фунт (1.36 кг) для четырехслойной структуры композита. Прочность на отрыв для двухслойной структуры составляет менее 1.0 фунт (0.45 кг) для двухслойной структуры композита и менее 0.7 фунт (0.32 кг) для четырехслойной структуры композита. Данное изобретение позволяет получать нужные продукты ...

Способ изготовления сетчатых пластиковых конструкций с ромбовидными ячейками

Литьевая форма для отливкииздЕлий из пОлиМЕРНыХ МАТЕРиАлОВ

Способ изготовления щетинных изделий

... (Использование: щетино-щеточное производство . Сущность изобретения: способ изготовления щетинных изделий, состоящих из держателя и зафиксированных в нем щетинных элементов из термопластичного синтетического материал-а путем выполнения в держателе гнезда для размещения нерабочих концов щетинных элементов, расплавления нерабочих концов щетинных элементов с образованием утолщения при уменьшении, при этом их длины и закрепления утолщения в гнезде держателя. Гнездо держателя выполняют по высоте с переменным сечением, нижние участки которого выполняют с поперечным сечением, меньшим, чем поперечное сечение утолщения, утолщение и/или стенки гнезда нагревают до температуры стыковки, при которой термопласты находятся в энтронийноупругом со- стоянии, лежащей в пределах между температурой затвердевания и температурой текучести в случае выполнения гнезда и утолщения из атмосферных термопластов, и температурой затвердевания и температурой плавления кристаллита в случае выполнения гнезда и утолщения ...

Заготовка для изготовления диска пластинки для записи из полимерного материала

Установка для изготовления чашеобразных упаковочных сосудов из термопластичного материала

Способ изготовления форм для литья передних частей оправ очков

PRESSVORRICHTUNG ZUR HERSTELLUNG VON KUNSTSTOFFGEGENSTAENDEN, INSBESONDERE SCHALL- UND BILDPLATTEN

VERFAHREN ZUR HERSTELLUNG EINES GEGENSTANDES AUS KUNSTSTOFF, VORRICHTUNG ZUR DURCHFUEHRUNG DES VERFAHRENS UND NACH DEM VERFAHREN HERGESTELLTER GEGENSTAND

VERFAHREN ZUM EXTRUDIEREN.

VORRICHTUNG ZUM HERSTELLEN, FUELLEN UND VERSCHLIESSEN EINES BEHAELTERS AUS THERMOPLASTISCHEM KUNSTSTOFF

The apparatus has a container-shaping device (12, 12a, 16, 16a) and a filling device (6). The container-shaping device has two bottom-mould halves (12, 12a), movable relative to one another and provided with holding members for holding a tubular plastic blank, for the shaping of the container belly and the container bottom and upper-mould halves (16, 16a), arranged above them and movable independently of the bottom-mould halves, for the shaping of the container head. The filling device is provided with a gas pipe, a filling pipe and a vent pipe. So that powdery or granular materials can be dispensed (for filling) in predetermined quantities by means of such an apparatus, the filling pipe (34) accommodates a dust-retaining and gas-permeable device (38) which limits the quantity receivable by the filling pipe. Moreover, the filling pipe can be connected selectively to an underpressure source or to an overpressure source and can selectively be connected to or separated from a supply container ...

Batterien aus elektrochemischen Elementen,insbesondere aus Trockenelementen mit Flachzellen und Verfahren zu ihrer Herstellung

MIT DURCHGANGSLOECHERN VERSEHENER KOERPER AUS KUNSTSTOFF O.DGL. MATERIAL UND VERFAHREN ZU SEINER HERSTELLUNG

THERMOPLASTISCHE KUNSTSTOFFOLIE MIT STRAHLUNGSVERAENDERNDEN TEILCHEN

FORMEN VON BRILLENGLAESERN MIT STETIG SICH AENDERNDER BRECHKRAFT AUS ORGANISCHEM GLAS

UEBERZUG FUER KENNKARTEN

VERFAHREN UND VORRICHTUNG ZUM STRANGPRESSEN

MESH STRUCTURE AND LAMINATE MADE THEREWITH

TUBENARTIGER BEHAELTER UND VERFAHREN ZU SEINER HERSTELLUNG

GIESSHARZKOERPER MIT EINGEGOSSENEN METALLENEN ELEMENTEN

The potted metallic elements are surrounded by an insert consisting of rubber as a pressure cushion. As a result of the invention, the rubber insert is intended to be designed such that, using simple means, any buildup of unacceptable high mechanical stresses in the potting-resin body in the region of the metallic elements is prevented. For this purpose, elements potted in the edge region of the potting-resin body (7) are surrounded by an insert (5) which consists of silicone rubber and extends at least as far as the surface of the potting-resin body (7). Such a potting-resin body is primarily suitable for potting-resin/fully potted current transformers. ...

Verwendung von wärmeschrumpfbaren thermoplastischen Kunststofffolien aus Polyestern

Polymersysteme mit Mehrfachformgedächtniseffekt und Verfahren zum Ausbilden von Polymersystemen mit Mehrfachformgedächtniseffekt

Polymersystem umfassend:eine erste Polymerzweifachformgedächtnismaterialschicht undeine zweite Polymerzweifachformgedächtnismaterialschicht, welche mit der ersten Polymerzweifachformgedächtnismaterialschicht verbunden ist, um ein Zweischichtpolymermaterial auszubilden,wobei die erste Polymerzweifachformgedächtnismaterialschicht und die zweite Polymerzweifachformgedächtnismaterialschicht einen gut voneinander getrennten thermischen Übergang aufweisen, wobei die DMA-Kurve des Zweischichtpolymermaterials ein mittelhohes Plateau in dem Speichermodul zwischen der Glasübergangstemperatur der ersten Polymerzweifachformgedächtnismaterialschicht und der zweiten Polymerzweifachformgedächtnismaterialschicht, ein höheres Plateau bei einer Temperatur von weniger als der Glasübergangstemperatur der ersten Polymerzweifachformgedächtnismaterialschicht und der zweiten Polymerzweifachformgedächtnismaterialschicht sowie ein tieferes Plateau bei einer Temperatur oberhalb der Glasübergangstemperatur der ersten ...

UMHUELLUNGSMITTEL

VORRICHTUNG ZUM FORMEN EINER EINLAGE AN DER INNENFLAECHE EINER OBEREN WAND EINER BEHAELTERVERSCHLUSSSCHALE

NETZ UND VERFAHREN ZU SEINER HERSTELLUNG

VERFAHREN UND WERKZEUG ZUR HERSTELLUNG VON STRANGGEPRESSTEM MATERIAL SOWIE DAS HERGESTELLTE MATERIAL

Verfahren zum Ausbilden einer Struktur mit optimierter Raumform

Verfahren zur Ausbildung einer Struktur (2) mit optimierter Raumform aus einem Werkstoff (4), mit den Schritten: a) Ausbilden einer Vorform (1) der Struktur (2) aus dem Werkstoff (4), b) Überführen des Werkstoffs (4) in unterschiedlichen Teilvolumina der Vorform (1) nacheinander in einen viskosen Zustand, in dem er in der Lage ist, sich unter Einwirkung innerer Spannungen umzuverteilen, wobei dem Werkstoff (4) geometrische Randbedingungen so vorgegeben werden, dass sich der Werkstoff (4) selbstorganisiert in die Struktur (2) mit der optimierten Raumform umverteilt, wobei die geometrischen Randbedingungen durch Bereiche der Vorform (1) bzw. der späteren Struktur (2) vorgegeben werden, in denen sich der Werkstoff (4) nicht in dem Zustand befindet, in dem er in der Lage ist, sich unter Einwirkung innerer Spannungen umzuverteilen, und c) Überführen des umverteilten Werkstoffs (4) in einen Zustand, in dem die erfolgte Umverteilung des Werkstoffs (4) konserviert ist.

BESPANNUNGSNETZ FUER DIE BESPANNUNG EINES RAHMENS

MOULDED PLASTICS BEARING ASSEMBLY

... 1404048 Spherical bearing surfaces KAMATICS CORP 25 Oct 1972 [4 April 1972] 49130/ 72 Heading E2F [Also in Divisions B5 and F2] A bearing member comprises a cured mixture of an acrylate composition and a particulate solid lubricant. The solid lubricant is preferably PTFE, molybdenum disulphide, silver or lead powder, graphite fibres or fibreglass flock. The acrylate composition preferably constitutes 50 to 70% by weight of the mixture. The member is used in an assembly in which the other bearing member has a surface of metallic or ceramic material, the surface having a coating of a parting agent which prevents adhesion of the bearing surfaces. The metallic material may be stainless steel, titanium or aluminium or alloys thereof. The ceramic material which may be used on a substrate of titanium or titanium-based alloy, may be Cr 2 O 3 , TiO 2 , Al 2 O 3 , TiC, WC or mixtures thereof. The parting agent may be PTFE, silicone or wax emulsion. The assembly is made by coating the metallic or ...

IMPROVEMENTS IN OR RELATING TO THE PRODUCTION OF ADHESIVE PVF-FILMS

... 1282667 Adhesive-coated polyvinyl fluoride films DYNAMIT NOBEL AG 14 Sept 1970 [15 Sept 1969] 43881/70 Heading B2E [Also in Divisions B5 and C3] An adhesive-coated cast polyvinyl fluoride film capable of being bonded to a substrate (see Division B5) is produced by incompletely gelling a film of a solution or dispersion of polyvinyl fluoride deposited on a support by removal of solvent or dispersant from the solution or dispersion to a residual content of 0.4-0.8% by weight, coating the film containing the residual content of solvent or dispersant on one side with a layer of adhesive, and drying the coated film by evaporating of all solvent and/or dispersant present, the adhesive being stable at the temperature at which the evaporation takes place. The adhesive can be applied in the form of a solution by brushing or spraying. Suitable adhesives are polyurethanes. As shown in Figure 1, a pigmented and deaerated polyvinyl fluoride dispersion is applied by means of reverse-roll coater 2 to ...

MAT AND PROCESS FOR ITS MANUFACTURE

... 1308867 Coated sheet materials MITSUBISHI PETROCHEMICAL Co Ltd and U C SANGYO Co Ltd 19 April 1971 [16 March 1970] 24250/71 Heading B2E [Also in Divisions B5 and B6] A mat is produced by injecting a hardenable resin composition by means of a swinging nozzle 4 as shown in Fig. 1 towards and away from a moving sheet 7 so as to cause the composition to adhere to the sheet at successive points and hardening the resin to form loops between the points of adherence. Preferably molten thermoplastics compositions are used for the injection. Resin composition may be injected from a plurality of orifices in the swinging nozzle to provide filamentary loops or it may be injected from one or more slots to provide a corrugated layer of resin adhered to the sheet along parallel lines. The loops of the resin may be cut to provide a pile. The nozzle may be swung between two parallel sheets so that the loops of resin are adhered alternately to respective sheets. If the resin is injected from a slot a corrugated ...

PRODUCTION OF CONTAINERS

... 1332628 Packaging TETRA PAK DEVELOPPEMENT SA 15 Aug 1972 [20 Aug 1971] 37945/72 Heading B8C A container is produced by folding a strip 13 to form a series of open-ended channels 2 and sealing another strip 3 having flaps 23, 23a to the strip 13 to close the open ends and tops of the channels 2. When the flaps 23, 23a have been sealed to the strip 13, each container is filled through a filling tube extending underneath the strip 3, prior to the top panel portion 29 of the strip 3 being sealed to a portion 17 of the strip 13. This latter sealing is effected by an ultrasonic or a heat sealing device. Individual sealed packages are cut from the series of packages by a knife (100, Fig. 2). During formation, filling, sealing and separation of the containers, the strip 13 is supported on the bases and upright walls (26, Fig. 2) of forming parts. The strips 3, 13 are of foamed polystyrene sheet or a material provided with a thermoplastic layer along the lines or surfaces to be sealed. Specification ...

MANUFACTURE OF PANELS

... 1395247 Forming panels OMNIUM DE PROSPECTIVE INDUSTRIELLE 19 Oct 1972 [21 Oct 1971] 48229/72 Heading B5A Panels, are formed by assembling units, e.g. of ceramic, on a support, filling the spaces therebetween with a granular thermoplastic material, and heating to below the degradation temperature of the thermoplastic material in contact with ambient air for sufficient time to oxidize the thermoplastic material to form oxygen-containing polar groups therein. The support may be a sheet of paper which is subsequently removed. The visible side of the units is preferably stuck on to the temporary support, the space between the units filled with the granular thermoplastic and the assembly vibrated or subjected to an air current to remove granules from the upper side of the units. The support may alternatively be coated with oil. The units may have a convex face; in this case, the flat side is placed on to a porous support, e.g. gauze after applying a layer of granules to the support.

MOULDING OF ARTICLES

... 1414466 Supporting inserts in a mould M LADNEY Jnr 20 Dec 1972 [29 Dec 1971] 58711/72 Heading B5A A metal or plastics insert 32 on to which foam plastics 24 is to be moulded, is held in position in a mould 10 by a vacuum developed between the inset 32 and a wall of the mould cavity. A steel or aluminium mould 10 is lined with polyethylene sheets 18, 22, and an inset 32 is placed over a core 30 and spacers 36 attached to a hinged cover 14. A vacuum is applied to a reservoir 56 and to a cavity 40 between the insert and core, to clamp the periphery 42 of the inset against the cover liner 22. The cover is closed and clamped, and plastics 24 is injected into the mould cavity (or placed before mould closing) and foams on to the insert 32 around projections 70. The plastics article is ejected from the core 30 by excess pressure applied to the cavity 40. The cover liner 22 can be omitted and replaced by a silicone rubber gasket (see Fig. 7, not reproduced) or a plastics lip on the periphery of ...

Flexible composite hose

A flexible composite hose is constructed such that a plastics inner tube (1) is covered with an outer tube (2) of heat-shrinkable material, with the inner tube being compressed by the shrinkage force of the outer tube. It is produced by covering an inner tube with an outer tube having a slightly larger inside diameter than the outside diameter (1') of the inner tube, and then heating the tube assembly at a proper temperature to effect heat shrinkage. it has good chemical resistance and pressure resistance.

METHOD AND APPARATUS FOR HEAT TREATING A HEAT-SHRINKABLE TAPE-LIKE OBJECT

A tape-like object such as a fastener tape the shrinkage curve of which is known traverses a plurality of rollers disposed within a heating unit. In order for the tape to travel through the heating unit in a substantially tension-free state or under a prescribed tension, a suitable feed speed based upon the shrinkage curve is obtained. The rollers are driven by drive means, responsive to commands from control means, in accordance with the feed speed in such a manner that each roller rotates at a speed different from the other rollers, or in such a manner that groups of the rollers each rotate at a speed which is different for each group.

APPARATUS FOR THE MANUFACTURE OF HELICAL COILS FOR SLIDING CLASP FASTENERS

... 1315021 Sliding clasp fasteners OPTI-HOLDING AG 9 Sept 1970 [16 Sept 1969] 43050/70 Heading B5A In an apparatus for the manufacture of helical coils from plastics monofilament for sliding clasp fasteners, plastics monofilament 9 is fed into the apparatus from a rotating spool (4, Fig. 1, not shown), through feeding rolls 20, 17, 18 to a winding unit 7, 8 where the plastics monofilament 9 is wound on to a winding mandrel 6 secured to a mandrel holder 5, the mandrel holder having two mutually off-set entry and exit sections 5a, 5b, respectively, joined together rigidly by a member 14, one part 7 of the winding unit being rotatable about the entry section 5a and the other part 8, being rotatable, synchronously with the part 7, about the exit section 5b; a " take off " unit 10 is provided to take the finished coil 11 of the mandrel 6. In the embodiment shown, two sets of the apparatus of the invention are provided alongside each other in a common frame. As shown in Fig. 4, which is a part-sectional ...

METHOD OF APPLYING A PLASTICS PROTECTOR ONTO A GLASS CONTAINER

... 1403401 Strengthening glassware OWENS ILLINOIS Inc 30 June 1972 [30 June 1971 30659/72 Heading C1M [Also in Divisions B5 B8 and F2] Glass bottles B are provided with shrunk-on plastics sleeves 69 by winding blanks 69a of thermoplastics material biaxially orientated in lengthwise and widthwise directions M and T on mandrels 66 of a rotating turret, heat-seaming the overlapped ends of each respective wound blank by turret-mounted, radially-movable electrical resistance-heated seams 75, to form sleeves 69, ejecting the formed sleeves upwardly from the mandrels by cam-operated strippers 70 on to bottles, which are moved in synchronism with the turret into overlying registry with the mandrels by bottle-carrying chucks 54 mounted on an endless chain 53, and shrinking the sleeves on to the bottles by passing the sleeved bottles through an oven 77. The chucks 54 each have a centre spindle provided with a roller 63 running in a cam track 64, which has depressed portions 64a and 64d, Figs. 12 (not ...

MOULDING

... 1442069 Encapsulation moulding WORLDWIDE PLASTICS DEVELOPMENT Ltd 8 April 1975 [25 April 1974] 18179/74 Heading B5A In the formation of a compression or injection moulded product comprising a reinforcement encapsulated in a plastics material, the reinforcement is supported in a mould cavity and spaced from the surfaces thereof by support pins which are retractable into the mould surfaces, and some of the plastics moulding material, in an initial part of the moulding process, enters one or more reservoirs each formed in or around a separate support pin, the reservoirs opening into and extending outwardly of the mould cavity, and on retraction of each pin, a piston working in each reservoir forces the moulding material out of the reservoir into the vicinity of the part of the mould previously occupied by the pin.

Thermoplastic polymer blend compositions

Compositions comprise 10 to 90 weight per cent of a high isotactic content polypropylene resin having a melt index at 230 DEG C. of 0.1 to 5.0 and 10 to 90 weight per cent of a crystalline ethylene/butene-1 copolymer resin containing 1 to 30 weight per cent of ethylene and having a polybutene type crystal lattice. The compositions may be extruded to form biaxially oriented, shrinkable films.

SPLIT HEAT SHRINKABLE SLEEVE

Device for and method of internal pipeline protection.

A device provides corrosion protection for the inside of a pipeline, particularly at weld areas between pipe sections. The device (20) has a polymeric liner (22) that is bonded to the inside of the pipe, the liner being driven outwards into contact with the pipe on activation of a delivery arrangement (26) by heating the pipe from outside. The delivery arrangement (26) may be of a shape memory metal or of a high modulus engineering plastics material. The bonding material (24) is applied progressively to the inside of the pipe, thereby to preclude entrapment of air between the liner (22) and the inside of the pipe.

Improvements in or relating to a receptacle.

In producing a receptacle a web of plastics material is moulded so that the web forms a receptacle with a liquid-tight side wall, and the formed receptacle is severed from the rest of the web by means of cooperating elements movable relatively to one another and simultaneously one or more apertures are formed in the base of the receptacle. A filter disc may be located within the receptacle. In the embodiment of Fig. 3, a sheet (9) is vacuum moulded in a mould (7) and the resultant article is severed from the sheet by a first blade (13) acting against a resilient counter (10). An aperture is simultaneously formed in the base of the article by a second blade (14) acting against a second counter. A filter disc is located over the aperture. In the embodiment of Fig. 7, each of a pair of vacuum moulds has a resilient cushion (24) in its base and the base of the freshly formed article is perforated by a member (12a, 12b) carrying pins (22) which is movable into the mould. ...

Capacitive disc stamper having improved stain resistance and method for manufacture thereof

Nickel stampers used for the molding of capacitive electronic discs are treated prior to use in the molding process by heating the stamper in the presence of an oxygen containing gas, at a temperature from about 220 DEG C. to about 300 DEG C. for 2 to 5 hours until a continuous protective oxide layer approximately 10-40 angstroms thick is formed on the surface of the stamper.

FOLDING AND FORMING TRAINS OF SLIDE FASTENER ELEMENTS

Quenched nylon multilayer casings

An exact-fit tubular food casing for pressurized filling comprises a tubular polymeric laminate having an outer layer of crystallized and moisturized nylon and an interior moisture barrier layer. In one advantageous mode, the nylon is heat crystallized from a substantially amorphous state and simultaneously moisturized. Associated method and apparatus for making said casing are also provided. In use, the casing is stuffed to within its elastic limit so that radial deformation is uniform along the length of the tubular casing. As the exposed nylon dries out, the casing shrinks, thus further elastically stretching tightly over the stuffed food roll contained therein.

Resin mixture and shrinkable film for poultry bags made therefrom

A heat-shrinkable film suitable for use in fabricating bags for packaging frozen poultry. The film composition comprises a resin mixture of between about 80 and about 95 weight percent of an ethylene-vinyl acetate copolymer having a vinyl acetate content of from at least about 1.7 to about 4.5 weight percent, and having a melt index of from at least about 0.15 to about 0.35 decigram per minute; and between about 5 and about 20 weight percent of a polyethylene material selected from the group consisting of: (a) high density polyethylene having a melt index of between about 0.15 and about 0.70 decigram per minute, and a density of between about 0.94 and about 0.96 grams per cubic centimeter, and (b) low pressure low density polyethylene having a melt index of between about 0.3 and about 3.0 decigrams per minute, and a density of between about 0.915 and about 0.925 gram per cubic centimeter.

METHOD AND APPARATUS FOR FABRICATING THERMOPLASTIC CONTAINERS

... 1474621 Infra-red heater OWENS ILLINOIS Inc 24 April 1974 [25 April 1973] 17859/74 Addition to 1389593 Heading H5H [Also in Divisions B4-B5 B8 and F4] In an arrangement for making plastic cups in which a sleeve and a base disc are heat shrunk on to a mandrel, mandrels 141 are passed on a conveyer through a shrink tunnel. The shrink tunnel includes a first pair of infra-red heaters 701a, 701b vertically mounted to heat the upper regions of the sleeve and a second downstream pair of infra-red heaters 702a, 702b which are slightly tilted to account for increase in slope of the lower region of each mandrel. Infra-red heaters 703 are located between the other heaters and below the mandrels. The positions of the heaters are individually adjustable and the heaters are mounted upon a support 771, 772 which can be raised and lowered by a pair of cylinders 974 (only one shown) acting through toggle linkages 791, 792 located between the support and a fixed base 788. The mandrels are rotated by co-operation ...

HEAT SHRINKABLE PLASTIC PACKAGING BAG

... 1442886 Heat-shrinkable bag UNION CARBIDE CORP 9 Oct 1974 [10 Oct 1973] 43712/74 Heading B8K [Also in Division C3] Heat shrinkable packaging bags of plastic film are made of blends of (1) 15 to 40 weight per cent of high density polyethylene having a density in the range 0.94 to 0.98 g./c.c. at 25‹C and (2) low density polyethylene having a density in the range 0.91 to 0.93 g./c.c. at 25‹C, the bags having at least one heat-seal. The bags may be gusseted, and preferably have tails of unfused film extending exteriorly of the bags beyond the heat-seals.

Thermoplastic polymer sheets and articles obtainable therefrom

A process of forming a sheet of thermoplastic polymer foam comprises extruding a hot sheet of a foamable thermoplastic polymer composition, rapidly chilling the principal surfaces only of the sheet to prevent expansion thereof and to form outer skins while permitting the still warm core of the sheet to expand, the chilling being controlled to form a sheet consisting of a foam polymer core having a density of at least 18 lbs. per cu. ft., and a non-porous, smooth, tough polymer skin on either side of the core, the core comprising between 50% and 94% of the total thickness of the sheet and being integrally united to the skins, which have a substantially higher density than the core. The preferred thermoplastic polymer is a styrene polymer containing more than 50% styrene. Other suitable polymers listed are cellulose ethers and esters, homopolymers and interpolymers of monomeric compounds containing the CH2=CH< group, e.g. olefins, vinyl halides, vinyl esters of carboxylic acids, vinyl ethers ...

Tire bead core

... 984,545. Pneumatic tyres. GOODYEAR TIRE & RUBBER CO. Aug. 16, 1962 [Oct. 23, 1961], No. 31448/62. Heading B7C. A bead core 10 for a pneumatic tyre comprises loops of wire 13 embedded in rubber and forming an endless ring round the crosssection of which, for the complete circumferential extent thereof, is helically wrapped in spaced turns a cord made of heat-shrinkable synthetic polymeric material 19, such as nylon, so that during vulcanization of the tyre in a mould, the material 19 will shrink longitudinally to bind the wire loops firmly together and hold them in the compact bundle, while permitting the wire loops to shift axially relative to each other, as shown in Fig. 1, the rubber surrounding the wire flowing into any void areas in the apex of the tyre bead areas. The wire loops may be formed from a single continuous wire or, as shown in Fig. 3, from several parallel wires 13-16 embedded in rubber to form a tape 12. The ends 17, 18 of the tape overlap, the material 19 being wound twice ...

Manufacture of link belts

A method of and means of winding close wound helical coils of a thermoplastic monofilament material is proposed wherein, in order to avoid secondary twist in the resultant coil, the coil, after having been wound and heat set under controlled conditions on a first part of a mandrel, is twisted in a direction tending to close the individual turns of the coil during the cooling thereof while passing along and/or from the end of a second part of the mandrel to a twist arresting means arranged in spaced apart disposition relative to such end.

Method of manufacturing moulds for disc-shaped record carriers, and moulds when manufactured by the method

A method of manufacturing moulds for disc-shaped record carriers, and moulds manufactured by means of such a method. A method of manufacturing moulds for disc-shaped record carriers where a glass plate which contains information and which comprises a central hole and is covered with a vapor-deposited silver layer is suspended in an electroforming bath by means of a suspension pin which contacts the edge of the central hole. The mould is electroformed by application of current via the suspension pin and a metallic strip arranged around the outer circumference. After this treatment, the plate is removed from the electroplating bath and the electroformed mould is removed from the plate.

DIMENSIONALLY-RECOVERABLE ARTICLE

PRODUCING HEAT RECOVERABLE ARTICLES

HEAT SETTING FASTENER ELEMENTS

Thermoplastic mixtures for producing plastics films having antiblocking properties

There are provided thermoplastic polymer containing mixtures suitable for making synthetic resin films with antiblocking properties containing 0.05 to 70 weight % of a pulverulent zeolite.

PLEATED RECOVERABLE MATERIAL

Moulding by coating formers

This invention relates to a process for making polyethylene mouldings for the production of heat- recoverable artefacts. In the process a former is heated to about 240 DEG C and immersed in a bed of fluidised polyethylene powder. Preferably the powder has 90% of its particles in the size range 150-300 micron and is at 75 DEG C. The former becomes coated with the powder, is withdrawn, and is heated to about 240 DEG C to fuse the coating. The coated former is cooled to 50-60 DEG C and the coating is stripped off the former at this temperature to produce an artefact. To produce a heat- recoverable artefact, the artefact is irradiated with 20-25 M Rad of gamma rays or high energy electrons, deformed at an elevated temperature and cooled while held in the deformed state. The heat-recoverable artefacts will find use as end caps for cables and gloves for cable terminations in the electrical industry.

Method and apparatus for producing sheet material

In a method and apparatus for making a bilaminar sheet 20 having raised pockets 48 therein containing a gas, a molten thermo-plastic material is extruded, through a cylindrical nozzle having an annular circular slot opening to form a hollow tube. The extruder has a plurality of heaters 24 around the slot to maintain the temperature of the extruded material at different temperatures as it exits, to form a molten tube having a plurality of linear sidewall portions of unequal thicknesses, which adjust to a uniform thickness prior to collapse. Concomitantly with the extrusion, a pressurized gas is discharged into the extruder through a central opening to fill and expand the tube which is then passed between two parallel rollers 26, 64 to collapse and flatten it into a sheet. At least one of the rollers has a plurality of spaced-apart recesses 28 on its outer surface to form raised pockets containing the gas. ...

Method of making a laminated recorded disc

A laminated recorded disc of the type having a core material surrounded by a surface layer of a conductive material is made from a preform having a core surrounded by the conductive material. The preform is made in a mold in which the conductive material is first injected into the mold and then the core material is injected into the conductive material. The disc is made from the preform by placing the preform between the platens of a compression mold and closing the heated platens against the preform. The heated platens heat and apply pressure to the preform to cause the materials of the preform to flow radially outwardly until the materials fill the mold cavity formed by the completely closed platens.

Cable splice basing including recoverable fabric sleeve

A hollow pressure vessel is formed around an elongate substrate such as a pressurized telephone cable by recovering a composite structure recoverable by virtue of a recoverable fibres component thereof.

PRINT HAMMER

... 1275493 Selective printing NATIONAL CASH REGISTER CO 23 Sept 1970 [6 Oct 1969] 45244/70 Heading B6F The hammer body 28 of the hammer impression mechanism described in detail in Specification 1,275,495 is fabricated from nylon containing 40% glass fibres as a filter.

TURRETS FOR TRANSPORTING CONTAINERS

... 1320726 Moulding container transporting turrets DENNISON MFG CO Ltd 10 Sept 1970 [11 Sept 1969] 43418/70 Heading B5A [Also in Divisions B6 and E2] A rotary plastics turret 40 has peripheral recesses 41 therearound for the transport of plastics bottles to a location at which a decoration is applied to the containers (see Division B6), and is cast from epoxide resin, which may include aluminium filler, using the plastics containers as moulding surfaces to define the recesses 41. The mould 21 for the turret is cylindrical with a sheet 33, e.g. of aluminium foil or polyethylene, defining the base thereof and is supported on a jig 20, at a collar 23 whereof a shaft 22 to be cast into the turret 40 is retained by a bolt 24. The plastics bottles 29 are each retained in position within and above the base of the mould 21 by a screw 31 extending from the bottle cap and fixed, by a nut 32, along a slot extending radially of a plate 25 which is located at 27, 28 to the turret shaft 22. Each bottle ...

CONTINUOUS AUTOMATED PLASTIC MOULDING METHOD AND APPARATUS

... 1420811 Injection needles ABBOTT LABORATORIES 29 March 1973 [7 April 1972] 15217/73 Heading A5R [Also in Divisions B5 and B8] Needles 48 supported in carriers 50 are fed to and delivered from a mould 99, where syringe bodies 46 or holding plates 32 (Fig. 42, not shown) are injection moulded thereabout, by two indexable transfer wheels 70, 75 each having carrier receiving stations on the periphery thereof, and by a conveyor 130 for advancing the carriers from the first transfer wheel 70 to the mould and then on to the second transfer wheel 75. The needles 48 are loaded into openings 52 in mould cores 51 on the carriers 50 by a device 100 at the 3 o'clock position of the wheel 70. Sheaths 49 are correctly orientated and fitted onto the bosses 47 moulded onto the needles by a device 165 at the 3 o'clock position of the second wheel 75. The syringe bodies are stripped from the cores 51 at the 5 o'clock position and fall into tubes 201 on a discharge conveyor 202. The stripped carriers 50 are ...

METHOD AND APPARATUS FOR TREATING A MAGNETIC RECORDING MEDIUM

... 1437316 Rollers SONY CORP 1 Feb 1974 [3 Feb 1973] 04900/74 Heading F2U Apparatus for treating magnetic tape 13 comprises a metal roller 12 heated to a surface temperature of between 40-200‹ C., a second roller 11 having a polyurethane surface of a hardness of at least 70 degrees Shore D, and means to apply pressure in the direction of arrows 18, 19 of between 50-500 kg/cm. The roller 12 may be made of steel with a stub axle 14 connected to a rotary drive. The roller 11 may be a layer of polyurethane around a shaft 17 of iron or steel and cool air may be blown across its surface to keep the surface temperature below 100‹C. when the surface temperature of the steel roller is maintained at 200‹ C.

FORMING DIES

Heating device

... 1,147,478. Soldering. RAYCHEM CORP. 11 Oct., 1966 [12 Oct., 1965], No. 45340/66. Heading B3R. [Also in Divisions H2 and H5] A heating chamber 22 comprises an ellipsoidal reflector 10 with a heating lamp 23 at one focal point and a work holding mechanism 16 at the other focal point, the end portion 13 of the reflector 10 being mounted on an arm 14 pivotable at 26 to provide access to the mechanism 16, and the heating lamp 23 being in a circuit including a push-button-operable normally-open microswitch 66 and a triggeroperable normally-closed microswitch 65, operation of trigger 15 pivoting the arm 14 and operating the switch 65. Mechanism 16 holds cables 41, 42 for application of a solder sleeve 19 of elastic memory material by means of wires 47, 48 and 49, 50 and is releasable by continued movement of trigger 15 after opening of end portion 15 and operation of switch 65. The lamp circuit may include a timer for controlling the solder melting process. Cap 61 is removable for replacement ...

Improvements in or relating to moulding processes for the production of fibre reinforced resin articles

... 1,149,694. Moulding fibre-resin articles. WESTLAND AIRCRAFT Ltd. 6 Dec., 1967 [13 Dec., 1966], No. 55869/66. Heading B5A. Hollow fibre-resin articles are made by applying the fibre-resin material to a rigid heatexpansible former, enclosing the whole in a layer of heat-shrinkable plastics material and finally heating the assembly to expand the mandrel and shrink the layer thus applying the desired forming pressure to the fibre-resin material. The heat may additionally be utilized to cure the resin and may be applied via the former which may be of aluminium. The plastics layer may be in the form of a wound tape and its action may be enhanced by vacuum. If desired, a removable porous layer which serves to catch air or gas bubbles forced out of the fibre-resin material may be located directly underneath the plastics layer. Silicone rubber may be used as the resin to give flexible articles.

Transfer Mechanism

... 1,199,317. Endless conveyers. W. R. GRACE & CO. 25 Oct., 1968 [30 Oct., 1967], No. 49134/67. Heading B8A. [Also in Divisions B4-B5] Transfer apparatus for carrying articles 13 (as shown, trays) provided with at least two stud-receiving apertures 16a, 20a and two conveyers 1, 5 arranged for movement along non-parallel paths, one conveyer 1 being provided with at least one stud 15a for engaging in an aperture 16a in a tray 13, the other conveyer 5 being provided with at least one further stud 18a adapted to engage in a further aperture 20a in the tray 13, the two conveyers 1, 5 passing close to one another so that a tray 13 may be transferred from one conveyer to another, with engaging movement of the stud of one conveyer with respect to the associated aperture of the tray being in a direction tending to release the stud of the other conveyer from its associated aperture in the tray. As shown, the trays 13 have two key-hole slots 16a, 16b for engaging headed pins 15a, 15b of the conveyer ...

A PROCESS FOR BONDING A METALLIC MEMBER TO A BODY OF MOULDED POLYMERIC MATERIAL

... 1275494 Bonding metallic members to polymeric material NATIONAL CASH REGISTER CO 23 Sept 1970 [6 Oct 1969] 45245/70 Heading B5A In a method of bonding metallic supporting springs 31 to a print hammer 28 of moulded polymeric material, that part of the spring which is to be embedded in the hammer body is coated with a thermosetting adhesive 60 and then positioned in a moulding die, the moulding die then being filled with molten polymeric material which is thereafter solidified to form the hammer body; the adhesive is elastomeric or is cured to an elastomeric state during the bonding process. The spring may be shaped as shown, so as to provide a mechanical anchor age in addition to the adhesive bond. A plug 30, which may be of the same material as the hammer, is positioned within the shaped end of the spring after moulding of the hammer, and is also coated with adhesive before insertion. A positioning pin, which fits inside the curve of the spring, prevents moulding material from entering ...

ZIGZAG COUPLING ELEMENTS

METHOD AND APPARATUS FOR PUNCHING AN OPENING IN A SYNTHETIC PLASTICS CONTAINER SECTION BLANK AND FORMING A RIM THEREON

... 1,222,407. Rim-forming and perforating. BROWN MACHINE CO. OF MICHIGAN Inc. 2 Oct., 1968 [13 Oct., 1967], No. 46722/68. Heading B5A. A hole is punched in the base of a cold plastics container blank B, and an outwardly extending curled rim formed around the hole, by a reciprocating punch 11 which co-operates with a stationary platen 17 having an opening 18 which receives the reduced leading section 20 of the punch. The blank B is provided with an inwardly-directed stiffening rib 15 and a curved fold section 16. In operation the punch is forwarded into the opening 18 and severs the bottom wall 14 of the blank. Further movement of the punch causes the shoulder 21 on the punch to engage the rib 15 thereby causing the section 16 to be deformed under the axial pressure as shown in Fig. 5. The punch is then withdrawn and the fold section, due to the inherent elasticity of the cold plastics material, partially regains its former shape to form the desired rim. In a second embodiment (see Figs. 8- ...

TEXTILE PROCESS AND APPARATUS

... 1,214,543. Slitting webs. ERNEST SCRAGG & SONS Ltd. 2 April, 1969 [3 May, 1968], No. 21073/68. Heading B4B. A method of slitting a film 15 in a plurality of lengthwise disposed slits of finite length comprises the step of guiding the film in a path across part of the circumference of a rotating cylindrical array of cutting edges 11, the speeds of the film and of the cutting edges being different so that the length of each slit is determined by the difference in the speeds and the time for which the cutting edges engage the film. The cutting edges are formed on discs 12 spaced apart by discs 14 and keyed on a shaft 13. The film is fed over the cutting edges by means of feed rollers 16, 17. In a modification, Fig. 3 (not shown), instead of feeding the film in an arcuate path, it is fed along a chord of the cylinder bounding the cutting edges.

SPEED REDUCING TRANSMISSION

... 1,270,266. Toothed gearing; clutches. LORENCE MFG. CORP. 11 April, 1969 [12 April, 1968], No. 18690/69. Headings F2C and F2Q. An input shaft 10 carries diametrically opposed eccentrics 20, 21 on which are mounted stepped gears 23, 25 each having toothed portions 29, 37 adapted to mesh fixed ring gears 30, 38 and toothed portions 33, 41 of larger diameter adapted to mesh teeth 34 of a driven ring gear 35 which carries a sprocket 44. The ring gear 35 is rotatably mounted with respect to fixed end plates 8, 18 by ball bearings 42. In a modification, gears 61, 63, Fig. 4, mesh a ring gear 67 which carries external teeth which mesh pinions 74 journalled on spindles 75. A driven ring gear 78 carries teeth which are engaged by the pinions 74. In a winch assembly, shown in Fig.6, gearing output members 101 are connected to a rotatable drum 110 through a clutch assembly 111 comprising discs 114 keyed to sleeves 103 which are splined to members 101, discs 115 carried by the drum 110, a central disc ...

Flat flexible containers and related valves, and process and apparatus for their manufacture under absolutely sterile conditions

A flat, flexible, sterilizable container for a liquid to be maintained and extracted under sterile conditions, said container comprising: a body having walls formed by a three-layer laminate including an outermost layer of a propylene polymer, an innermost layer of a copolymer of ethylene with a small amount of butylene, and an intermediate layer of an amide polymer; and a valve carried by said body comprising an elastomeric core whose spaced major faces are covered, one, by a three-layer laminate similar to said body wall forming laminate and, the other, by a two-layer laminate including a first layer of a copolymer of ethylene with little butylene and a second layer of an amide polymer.

MOLDING SLIDING CLASP FASTENERS

DIE FOR SEALING ELEMENTS

... 1494215 Moulding seals FEDERALMOGUL CORP 10 Dec 1974 [19 Dec 1973 (2) 13 Nov 1974] 5001/77 Divided out of 1494214 Heading B5A [Also in Divisions F2 and B6] A sawtooth formation on the face of an annular seal element 35 is produced in a multiaction die by coining a web of p.t.f.e. between a first die assembly 40 with an annular spring- supported coining member 80 having a flat gripping portion 81 and a shaped gripping portion defining recesses into which said wafer material cold flows during coining, and a second die assembly 42 having a gripping member 60 opposite said coining member 80. The die also pierces and trims the annular seal member. Reference is made to the parent Specification which claims the seal.

SEALING ELEMENTS

... 1494214 Shaft seals FEDERAL-MOGUL CORP 10 Dec 1974 [19 Dec 1973 (2) 13 Nov 1974] 53470/74 Heading F2B Hydrodynamic grooves 82, 126 are produced in lip seals 35, of difficultly mouldable material, e.g. PTFE, by operations performed on a preformed washer or billet. The grooves may be produced by coining the washers at very high pressures or by machining the billet 132 in a lathe. The coining member 80 may have a flat siirface 81 which is proud of its grooved surface. The washers are trimmed, by means of cutting edges 44 and 48, as they are coined. As the washers are assembled within their casings (10, Fig. 7, not shown), they are simultaneously cold formed, so that the grooved portions (21) extend frusto-conically. The casings (10) may be provided with sealant coatings (92, Fig. 10, not shown). Reference is made to the divisional Specification 1,494,215, which claims the manufacturing dies.

WEATHER AND TRIM STRIP

COMPOSITION FOR DRAWN FILM COLD DRAWN FILM MADE OF SAID COMPOSITION AND PROCESS FOR MANUFACTURE OF SAID FILM

Aspherical optical elements

A method of producing an aspherical optical element comprising a light transmissive glass substrate having an irregular surface finish with a profile which follows in part a desired aspherical profile and a coating of a light transmissive polymeric material thereon. The glass substrate 2 is first prepared with the part aspherical profile 3 for example by casting, machining or grinding and then the substrate is supported in a mould tool in close proximity to an optically polished surface of a negative profile of the desired aspherical profile. The region between the facing surfaces of the glass substrate and mould is filled with the polymeric material 1 and the polymeric material is bonded to the surface of the glass substrate. Thereafter the topical element thus formed is released from the mould tool. The surface of the glass substrate may be produced in the first process stage by mass production methods using automatically controlled machine tools. The surface may have a tolerance defect ...

MANUFACTURE OF PACKAGING CONTAINERS

... 1454465 Apparatus for producing parallelepiped packages TETRA PAK DEVELOPPEMENT SA 11 Jan 1974 [18 Jan 1973] 51917/75 Divided out of 1454464 Heading B8C The subject matter of this specification is substantially the same as that described in Specification 1,544,464, but the claims are concerned with a packaging machine for forming parallelepiped packages including an arrangement for feeding a web and cutting pouring holes and/or flap defining slits in the web.

PACKAGED CONTAINERS AND A METHOD FOR THEIR MANUFACTURE

... 1515858 Portable containers ZIRISTOR AB 13 Oct 1975 [18 Oct 1974] 41806/75 Heading B8D [Also in Division B5] A packaging container 1 is formed by lapseaming the ends of a heat shrinkable rectangular blank of foamed plastics covered on either side with homogeneous plastics material to form a tubular body, inserting an end number 10 into an end portion of the foamed body, and heat shrinking the end portion at least into underlying sealing engagement with the end number. As shown, the blank is wound, and the blank ends heat sealed together to form a longitudinal lap-seam 6, Fig. 1 (not shown), on a cylindrical portion 13 of a mandrel 12. The cylindrical body formed is then pushed downwardly so that it extends beyond the end of a lower frusto-conical mandrel portion 14. The end member is raised by a device 15 and held against the mandrel by vacuum. The body is then heated, e.g. by hot air, so that it shrinks into conformity with the mandrel and the lower edge folds under the edge of the end ...

Shape memory materials comprising polyelectrolyte segments

The present invention concerns shape memory materials comprising polyelectrolyte segments. These segments can be used for fixing a permanent shape and/or such segments can also be employed as switching segments responsible for the fixation and release of the temporary shape.

SHAPE-MEMORY POLYMER WITH INTEGRAL RESISTIVE HEATING ELEMENT

A method of making a reconfigurable three-dimensional shape includes the following steps: (i) moving multiple print heads in three dimensions relative to a printing surface, where the print heads include a conductor print head and a polymer print head; (ii) depositing a conductive material from the conductor print head; and (iii) depositing a shape-memory polymer from the polymer print head. The depositing steps form a volumetric shape of a shape-memory polymer, capable of changing shape, with a conductive material capable of acting as a heating element integrally formed in the volumetric shape. The method can further include the steps of heating the shape-memory polymer above a transition temperature, changing the shape of the volumetric shape following the heating step, and then allowing the shape-memory polymer to cool below the transition temperature to fix the new volumetric shape. 1. A method of making a reconfigurable three-dimensional shape , comprising the steps of:moving multiple print heads in three dimensions relative to a printing surface, where the print heads include a conductor print head and a polymer print head;depositing a conductive material from the conductor print head; anddepositing a shape-memory polymer from the polymer print head;whereby the depositing steps form a volumetric shape of a shape-memory polymer, capable of changing shape, with a conductive material capable of acting as a heating element integrally formed in the volumetric shape.2. A method as set forth in or any other method claim claim 1 , where the depositing steps take place at the same time.3. A method as set forth in or any other method claim claim 1 , where the depositing steps take place sequentially in a common layer.4. A method as set forth in or any other method claim claim 1 , where the step of depositing the conductive material includes depositing an electrically-conductive resistance element.5. A method as set forth in or any other method claim claim 1 , comprising ...

METHOD FOR MANUFACTURING NANOMETRIC OBJECTS USING THE RUPTURE OF A LAYER DEFORMED BY WRINKLES

A method for manufacturing a nanoscale object from a structure including a strained elastic layer on a foundation in a solid state present at a surface of a rigid substrate, the method reiterating: melting the foundation for a duration higher than or equal to 50 ns, thickness of the foundation being at least 20 nm and lower than a predetermined thickness corresponding to a theoretical peak-to-peak amplitude of wrinkles, the melting generating a simultaneous deformation of the elastic layer and of the foundation and a localized contact between the elastic layer and the rigid substrate insulating the regions from the foundation; solidifying the foundation to bring the foundation back to the solid state; until the foundation reaches yield point of the elastic layer. 110-. (canceled)11: A method for manufacturing a nanoscale object from a structure including a strained elastic layer on a foundation in a solid state present at a surface of a rigid substrate , the method comprising:melting the foundation to bring the foundation to a liquid state for a duration higher than or equal to 50 ns, thickness of the foundation being at least 20 nm and lower than a predetermined thickness corresponding to a theoretical peak-to-peak amplitude of wrinkles, the melting resulting in a stress relaxation of the elastic layer which generates a simultaneous deformation, by formation of wrinkles, of the elastic layer and of the foundation, the formation of the wrinkles being accompanied by a localized contact between the elastic layer and the rigid substrate separating regions of the foundation;solidifying the foundation to bring the foundation back to a solid state, the solidification forming a solid structure having wrinkles at the surface;the melting and solidification being reiterated to increase an interval between separated regions of the foundation until the foundation reaches a yield point of the elastic layer.121: The method according to claim , wherein the melting is made by a ...

Sequential joint behavior sheet using photo deformation and method of controlling folding and unfolding thereof

Provided are a sequential joint behavior sheet using photo deformation and a method of controlling folding and unfolding thereof. The sequential joint behavior sheet includes at least three rigid parts, a first joint part joining two of the rigid parts that are adjacent to each other, and a second joint part joining two of the rigid parts that are adjacent to each other and spaced apart from the first joint part. Here, the first and second joint parts have a first state in which the same rigid state as the rigid parts is maintained, and a second state in which one rigid part performs a folding behavior with respect to the other rigid part of the two adjacent rigid parts between the first and second joint parts, the second state being reached when light is absorbed, and print patterns having different degrees of transparency are formed on a transparent high-molecular-weight polymer in the first and second joint parts, and thus a folding behavior is sequentially performed at the first and second joint parts due to different times taken to reach the second state through radiation of light according to degrees of transparency of the first and second joint parts.

Object Of Additive Manufacture With Encoded Predicted Shape Change And Method Of Manufacturing Same

The combination of 3D printing technology plus the additional dimension of transformation over time of the printed object is referred to herein as 4D printing technology. Particular arrangements of the additive manufacturing material(s) used in the 3D printing process can create a printed 3D object that transforms over time from a first, printed shape to a second, predetermined shape. 1. A method for additive manufacturing of an object , the method comprising:dispensing a multiplicity of layers of a first polymerizable formulation from a three-dimensional printer, the first polymerizable formulation being a first additive manufacturing material;dispensing a multiplicity of layers of a second polymerizable formulation from a three-dimensional printer, the second polymerizable formulation being a second additive manufacturing material;wherein post-polymerization and in response to an external stimulus, the second polymerizable formulation is lower swelling than the first polymerizable formulation;the first and second additive manufacturing materials arranged relative to each other to form first and second joints in series that enable a predicted transformation of the object from a first manufactured shape to a second manufactured shape in response to an external stimulus, the external stimulus being non-biasing with respect to the predicted transformation from the first manufactured shape to the second manufactured shape;wherein for each of the first and second joints, the second additive manufacturing material is arranged to form a planar member within the joint, at least two members that extend outward from the joint, and at least two members within the joint that contact each other during the predicted transformation to restrict degree of curvature of the joint;wherein for each of the first and second joints, the first additive manufacturing material is arranged on the planar member of the joint; andwherein the planar members of the first and second joints are not ...

Composite material with elasticized portions and a method of making the same

A method of making a composite material having elasticized portions includes supplying a web of temperature sensitive elastic material, applying a microwave sensitive material to selected regions of the elastic material and subsecting the composite material to microwave energy. The microwave energy may be converted into heat by the microwave sensitive material thereby heating the microwave sensitive material and activating regions of the temperature sensitive elastic material adjacent the microwave sensitive material. The activated regions of the elastic material provide the elasticized portions in the composite material. Alternatively, the microwave sensitive material may reflect the microwave energy which may then directly heat and activate the regions of the elastic material opposite the selected regions to which the microwave sensitive material is applied. The method is particularly useful in the manufacture of garment-type articles such as disposable absorbent articles.

Method for filling holes in printed wiring boards

Elastomeric systems having unusual memory characteristics

This invention involves a process for the utilization of an unusual memory characteristic which is present in neutralized sulfonated elastomeric materials, wherein the process includes the steps of distorting or compressing the neutralized sulfonated elastomeric article, then heating the article to a selected elevated temperature, holding the article at the elevated temperature for a limited time while maintaining the distorted shape, cooling the article to near room temperature, and releasing it from the device used to compress or distort it. The released cooled elastomer does not return to its original form, but rather substantially retains the distorted shape for an indefinite period of time. The elastomer in the distorted shape is heated to an appropriate elevated temperature thereby allowing the article to recover towards its original undistorted shape.

Composite material with flexible parts and method for producing the material

FIELD: medicine. SUBSTANCE: method involves supplying fabric manufactured from flexible material sensitive to temperature, superimposing material sensitive to microwave radiation power over some flexible material areas and treating the composite material with microwave radiation. The microwave radiation is convertible into heat by means of material sensitive to microwave radiation power causing in this way the material sensitive to microwave radiation power to heat and activate areas of material sensitive to temperature adjacent to the material sensitive to microwave radiation. The activated areas of the flexible material build flexible zones in the composite material. The material sensitive to microwave radiation could be selected in particular cases as one reflecting microwave radiation that is usable for heating and activating in direct way the flexible material areas in front of separate areas bearing the material sensitive to microwave radiation. Composite material has flexible areas for producing absorbing articles. Absorbing articles have optional flexible parts. EFFECT: enhanced effectiveness in producing cloth articles like single use absorbing articles. 39 cl, 3 dwg $58 10СсС ПЧ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВО "”_2 207 834 ° ©С2 ПМ А 61Е 13/45, А 61 Ё 15/16 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2000114238/14, 30.10.1998 (24) Дата начала действия патента: 30.10.1998 (30) Приоритет: 03.11.1997 Ш$ 08/963.155 (43) Дата публикации заявки: 20.06.2002 (46) Дата публикации: 10.07.2003 (56) Ссылки: 4$ 5340431 А, 23.08.1994. КЦ 1793810 СЛ, 10.04.1995. (85) Дата перевода заявки РСТ на национальную фазу: 05.06.2000 (86) Заявка РСТ: 1$ 98/23069 (30.10.1998) (87) Публикация РСТ: М/О 99/22686 (14.05.1999) (98) Адрес для переписки: 103064, Москва, ул. Казакова, 16, НИИР Канцелярия "Патентные поверенные Квашнин, Сапельников и партнеры", пат.пов. Квашнину В.П., рег.№ 0004 (71) Заявитель: . КИМБЕРЛИ-КЛАРК ...

Method for producing polyethylene heat-shrinkable film

인쇄 배선 기판 홀 충진 방법 및 인쇄 배선 기판

본 발명은 인쇄 배선 기판(printed wiring board: PWB)의 홀(hole)을 충진(filling)시키는 방법 및 그 결과의 PWB를 개시한다. 제조의 중간 단계(intermediate stage) 동안, PWB는 여러 층상에 금속화부분을 가진 적층된 유전체 시트(lamination of dielectric sheets) 및 도금된 관통 홀(plated through hole:PTH)을 포함한다. 광결상 물질(photoimageable material)을 유전체 시트 적층체의 표면에 형성하여 PTH를 덮는다. PTH를 덮는 영역의 광결상 물질을 노광에 의해 부분적으로 경화(cure)시킨다. 광결상 물질의 나머지를 현상하여 제거한다. 그 다음, PTH를 덮는 영역내에 있는 부분적으로 경화된 광결상 물질에 압력을 가해 그 물질이 PTH내로 들어가게 해서 플러그(plug)를 형성한다. 압력을 인가하는 단계 동안 또는 그 단계 후에 열을 가하여, 플러그를 더욱 경화시켜 강성화시킨다. 어떤 응용의 경우에는, 플러그를 기계적으로 연마(abrade)하여 플러그의 표면이 유전체 시트 적층체의 한쪽 표면 또는 양쪽 표면과 동일한 높이로 되게 한다. 이 플러그는 땜납 마스크(solder mask)로서 이용될 수 있거나, 또는 이 플러그는 점도(viscosity)가 낮은 광결상 물질의 또다른 층이 유전체 시트 적층체위에 형성될 수 있게 하여, 홀이, 현재는 막혀있는데, 그러한 추가적인 층의 형성을 방해하지 않도록 한다.

Method of shrinking heat-shrinkable sleeve with heating

熱収縮チユ−ブの加熱収縮法及び加熱収縮装置

(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。

Patent JPS5923687B2

Heat recoverable plastics artefacts

Heat recoverable article

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Patent JPS6030705B2

Patent JPS5741330B2

Heat treatment for heat-shrinkable tube

Heat-shrinkable polyester film

(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。

OPTICAL FIBER CONNECTION METHOD

Patent FR2337888B1

POLYETHYLENE-TEREPHTHALATE SHRINKABLE SHEET, ESPECIALLY FOR PACKAGING

Patent FR2476663B1

Tape for wrapping packages

Coating method for cylindrical thermocontractive film

Process for making a stretched film

Irradiated polymer

ABSTRACT Crosslinking, for example, by irradiation, of a polymer comprising poly(tetramethylene terephthalate) is made possible by the addition of N,N'-m-phenylenedimaleimide. The resulting crosslinked modified polymer may be rendered heat-recoverable.

Label

本发明通过得到接缝起封性极好、生产率极高、在印刷等的加工时不易在长度方向断裂的热收缩性聚酯膜，提供由这种热收缩性膜形成的撕裂性良好的标签。该标签是将以膜宽度方向为主收缩方向进行热收缩的热收缩性膜作为基材，并根据包装对象物进行裁剪，在膜宽度方向上粘接了两端的环状体进行热收缩而覆盖包装对象物的外周的至少一部分的标签，其中，与主收缩方向正交的方向(膜长度方向)的直角抗撕强度为100N/mm～310N/mm，且与主收缩方向正交的方向(膜长度方向)的拉伸破坏强度为50MPa以上300MPa以下。

Patent JPS5923685B2

Silicone rubber enclosure element and method of using

TITLE: SILICONE RUBBER ENCLOSURE ELEMENT AND METHOD OF USING ABSTRACT OF THE DISCLOSURE A silicone rubber enclosure element and method of using in which the enclosure element, such as a length of tubing formed of silicone rubber, such as methyl vinyl polysiloxane and/or trifluoropropylmethyl vinyl polysiloxane, is treated with a fluorocarbon, such as trichlorotrifluoroethane, to effect expanding the inner diameter of the enclosure element about 50%. After the enclosure element is mounted about a supporting structure while in the expanded form, the fluorocarbon is allowed to evaporate at room temperature and cause the silicone element to shrink about the supporting structure, forming a secure connection, as the element returns to substantially its original dimensions.

Memory polymer optical fiber splicer and methods

The present invention involves an optical fiber splicer which is made of a unistructural mass (21c) of inherent shaped memory polymer material. The uni­structural mass has a longitudinal dimension with opposite ends which includes a first bore (25c) at one end and a second bore (29c) at the other end wherein the bores go into the mass and to each other. In a preferred embodiment, the first bore and the second bore are merely a single continuous oriface. The unistruc­tural mass has a first shape and a second shape and the first shape is a unique, recoverable, pre­determined inherent shape wherein the first bore and second bore each have a preset diameter to accommodate and tightly hold end segments of denuded optical fibers (31,35) of predetermined diameter in spliced, butted alignment with one another. The second shape is a deformed shape caused by solvent swelling and partial shrinking of the inherent memory polymer material such that the first bore and second bore each have swollen predetermined diameters which are greater than the diameters of the end segments of the denuded optical fibers so as to loosely and freely receive the end segments of the denuded optical fibers. Thus, the unistructural mass of inherent shape memory polymer material is initially formed in the first shape, also known as the inherent shape, and is then swollen and partially shrunk to its second or deformed shape and is capable of being returned to its first shape by application of a non-mechanical stimulus thereto, such as heat (Fig. 6). The invention is also directed to the method of preparing the optical splicer as well as the method of using the optical splicer to obtain a butt-to-butt splicing of end segments of optical fibers.

POLY (VINYL CHLORIDE) THERMORETRECISSABLE TUBE FOR PROTECTING CUT FLOWERS

L'INVENTION A POUR OBJET UN TUBE THERMORETRECISSABLE EN POLY(CHLORURE DE VINYLE) POUR PROTEGER LES TIGES DE FLEURS COUPEES. CE TUBE PRESENTE LES PROPRIETES SUIVANTES : A.UN RETRAIT A 60C DE 8 OU MOINS DANS LA DIRECTION LONGITUDINALE ET DE 10 A 20 DANS LA DIRECTION CIRCONFERENTIELLE; B.UN RETRAIT A 80C DE 20 OU MOINS DANS LA DIRECTION LONGITUDINALE ET DE 35 A 45 DANS LA DIRECTION CIRCONFERENTIELLE; C.UNE TEMPERATURE D'AMORCAGE DU RETRAIT DANS LA DIRECTION CIRCONFERENTIELLE DE 40C A 55C; D.UNE TEMPERATURE DE RAMOLLISSEMENT DE 40C A 55C; ET E.UNE EPAISSEUR DE 50M A 100M. PROTECTION DES MARGUERITES, NARCISSES, TULIPES ET AUTRES FLEURS POUR EMPECHER LES TIGES DE PLOYER SOUS LE POIDS DES TETES DES FLEURS. THE OBJECT OF THE INVENTION IS A THERMORETRECISSABLE POLY (VINYL CHLORIDE) TUBE FOR PROTECTING CUT FLOWER STEMS. THIS TUBE SHOWS THE FOLLOWING PROPERTIES: A. A RETREAT AT 60C OF 8 OR LESS IN THE LONGITUDINAL DIRECTION AND OF 10 TO 20 IN THE CIRCUMFERENTIAL DIRECTION; B. A RETREAT AT 80C OF 20 OR LESS IN THE LONGITUDINAL DIRECTION AND OF 35 TO 45 IN THE CIRCUMFERENTIAL DIRECTION; C. AN INITIAL TEMPERATURE OF WITHDRAWAL IN THE CIRCUMFERENTIAL DIRECTION OF 40C TO 55C; D. A SOFTENING TEMPERATURE OF 40C TO 55C; AND E. A THICKNESS OF 50M TO 100M. PROTECTION OF DAISIES, NARCISSES, TULIPS AND OTHER FLOWERS TO PREVENT THE STEMS FROM BENDING UNDER THE WEIGHT OF THE FLOWER HEADS.

Patent IT619656A

Amorphous memory polymer alignment device

ABSTRACT OF THE DISCLOSURE The present invention is directed to a device and method for precise positioning, or alignment of one or more articles with respect to the device or to each other. The device comprises one or more elements of Unistructural Mass of Inherent Memory Polymer with one or more internal cavities which have inherent shapes with at least one cross-sectional configuration which is congruent to a cross-sectional configuration shape of the said article(s) in the positioned or aligned position(s). The unistructural mass has cross-sectional configurations which are the same or smaller than those corresponding to the positions of the articles. The unistructural mass is deformed such that the articles can be readily inserted into the corresponding cavities. In one embodiment, a single unistructural mass has a single cavity for precision positioning of the article. In another embodiment, the mass has at least two cavities for article alignment. In another embodiment, a plurality of unistructural masses are aligned or connected and each contains at least one such cavity. Once the articles are inserted into their corresponding cavities, the inherent memory polymer is returned to its inherent shape by non-mechanical stimulus to force the articles into precisely defined position.

Thermally restorable article

(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。

Shape-changing structure member with embedded spring

A shape-changing structural member has a shape-changing material, such as a suitable foam material, for example a polymer foam capable of withstanding at least 300% strain or a metal alloy foam capable of withstanding at least 5% strain. Springs, such as one or more coil springs, provide structural support for the shape-changing material. The springs may also be used to provide forces to expand and contract the shape change material. The springs may include pairs of concentric springs, one inside of another. The concentric springs may surround an underlying skeleton structure that supports the shape-changing material and/or aids in changing the shape of the material. The concentric springs may or may not be wrapped around the underlying skeleton structure. Multiple springs or pairs of springs may be coupled together using a sheet metal connector.

COMPOSITE WITH ELASTIC SECTIONS AND METHOD FOR PRODUCING THE SAME

Composite material with elasticized portions and method of making the same

制造具有弹性部分的复合材料(10)的方法包括供给成幅的温度敏感弹性材料(12)、将微波敏感材料(14)涂布到此弹性材料(10)的选定区域上并给此复合材料施加微波能。此微波能可由此微波敏感材料(14)转变为热而加热微波敏感材料(14)并激活与其相邻的温度敏感弹性材料(12)的一些区域,使这些激活区域形成了复合材料(10)的弹性部。或者,微波敏感材料(14)可以反射微波能,直接加热和激活弹性材料中与加有微波敏感材料的选定区域相对的区域。此方法特别适用于制造穿戴型的制品如一次性吸湿制品。

Shrink wrapping film

(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。

Patent FR2294823B1

Patent FR2247493B1

METHOD AND DEVICE FOR ASSEMBLING LONGITUDINAL OBJECTS

Heat-shrinkable film of block copolymer

(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。

Manufacture of car body frame made of fiber reinforced resin

(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。

Making inflatable elements

Heat shrinkable tube of polyvinyl chloride for protecting stem of cut flowers

ABSTRACT A heat shrinkable tube of polyvinyl chloride for covering the stem of cut flowers, said heat shrinkable tube having the following properties: (a) a shrinkage at 60°C of 8% or less in the lengthwise direction, and from 10% to 20% in the circumferential direction; (b) a shrinkage at 80°C of 20% or less in the lengthwise direction, and from 35% to 45% in the circumferential direction; (c) a shrinkage-initiating temperature in the circumferential direction of from 40°C to 55°C; (d) a softening temperature of from 40°C to 55°C; and (e) a thickness of from 50 µm to 100 µm.

TUBE MADE FROM POLYVINYL CHLORIDE FOR PROTECTION OF THE STEM OF CUT FLOWERS.

Heat deformable elastomeric articles

Elastomeric articles which can be shrunk by the application of heat are made from a blend of a cured polychloroprene elastomer and a polychloroprene elastomer having a Williams Plasticity Number of more than 1,000* at 100* F. and less than 350* at 150* F.

Manufacture of heat-shrinkable polyolefin tube

POLYIMIDE THERMORETRECABLE FILMS AND PROCESS FOR PRODUCING THE SAME

LA PELLICULE THERMORETRECISSABLE SELON L'INVENTION COMPREND UNE PELLICULE DE POLYIMIDE PREPAREE PAR CONVERSION EN POLYIMIDE D'AU MOINS ENVIRON 50 EN POIDS DU POLYAMIDE-ACIDE OBTENU PAR REACTION D'UN DIANHYDRIDE D'ACIDE DIPHENYLE-TETRACARBOXYLIQUE REPRESENTE PAR LA FORMULE GENERALE: (CF DESSIN DANS BOPI) AVEC UNE DIAMINE AROMATIQUE, ET ETIREE DANS AU MOINS UNE DIRECTION POUR DONNER LA PROPRIETE DE THERMORETRECISSEMENT. APPLICATION: EMBALLAGE D'OBJETS PAR ENVELOPPEMENT SUIVI DE RETRECISSEMENT A CHAUD. THE HEAT SHRINKABLE FILM ACCORDING TO THE INVENTION INCLUDES A POLYIMIDE FILM PREPARED BY CONVERSION TO POLYIMIDE OF AT LEAST APPROXIMATELY 50 BY WEIGHT OF THE POLYAMIDE-ACID OBTAINED BY REACTION OF A DIANHYDRIDE OF DIPHENYL-TETRACARBOXENT ACID: THE REPRACARBOXENT FORMULA: CFHENYL-TETRACARBOXENT FORMULA: DRAWING IN BOPI) WITH AN AROMATIC DIAMINE, AND STRETCHED IN AT LEAST ONE DIRECTION TO GIVE THE PROPERTY OF THERMORETHING. APPLICATION: PACKAGING OF OBJECTS BY WRAPPING FOLLOWED BY HOT SHRINKING.

Recoverable polyethylene composition and article

ABSTRACT RECOVERABLE POLYETHYLENE COMPOSITION AND ARTICLE This invention discloses a recoverable composition an article comprising cross-linked polyethylene. The polyethylene has a molecular weight greater than about 3.0 million.

APPARATUS FOR LIGATING ELONGATED OBJECTS SUCH AS OPTICAL FIBERS

APPAREIL ET PROCEDE POUR CONTRACTER LA GAINE, POUVANT RETRECIR SOUS L'EFFET DE LA CHALEUR, D'UNE LIGATURE, AUTOUR DE DEUX OBJETS ALLONGES A LIGATURER, PLACES A L'INTERIEUR DE CETTE LIGATURE. L'APPAREIL COMPORTE UN SOCLE RIGIDE POURVU D'UN LOGEMENT PROPRE A RECEVOIR LA LIGATURE, AINSI QUE DES MOYENS PROPRES A RETENIR LESDITS OBJETS ALLONGES DE SORTE QU'ILS CONSERVENT UN POSITIONNEMENT CORRECT DANS LA LIGATURE, ET UN MICROSCOPE MONTE SUR LE SOCLE, PERMETTANT D'OBSERVER LES EXTREMITES DES OBJETS A TRAVERS UNE FENETRE PRATIQUEE DANS LA LIGATURE. UN DISPOSITIF DE CHAUFFAGE DISPOSE SOUS LE SOCLE PERMET DE CREER DE L'AIR CHAUD TRAVERSANT UNE OUVERTURE DU SOCLE DEBOUCHANT DANS LE LOGEMENT, GRACE A QUOI LA LIGATURE PEUT SE RETRECIR AUTOUR DES OBJETS A LIGATURER. PRINCIPALES APPLICATIONS : LIGATURE DE FIBRES OPTIQUES. APPARATUS AND METHOD FOR CONTRACTING THE SHEATH, CAPABLE OF SHRINKING UNDER THE EFFECT OF HEAT, OF A LIGATURE AROUND TWO ELONGATED OBJECTS TO BE LIGATURED, PLACED INSIDE THIS LIGATURE. THE APPARATUS INCLUDES A RIGID BASE PROVIDED WITH A PROPER HOUSING TO RECEIVE THE LIGATURE, AS WELL AS PROPER MEANS TO RETAIN THE SAID ELONGATED OBJECTS SO THAT THEY KEEP CORRECT POSITIONING IN THE LIGATURE, AND A MICROSCOPE MOUNTED ON THE BASE, TO OBSERVE THE ENDS OF OBJECTS THROUGH A WINDOW IN THE LIGATURE. A HEATING DEVICE PROVIDED UNDER THE BASE ALLOWS HOT AIR TO BE CREATED THROUGH AN OPENING IN THE BASE LEADING INTO THE HOUSING, THANKS TO THE LIGATURE MAY TIGHTEN AROUND THE OBJECTS TO BE LIGATED. MAIN APPLICATIONS: LIGATURE OF OPTICAL FIBERS.

Shrinkable film of styrene resin

(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。

Manufacture of optical elements

1364393 Optical elements MULLARD Ltd 22 Nov 1972 53952/72 Heading C1M [Also in Division B3] An optical element is produced by supporting a glass blank B with one surface Bs in proximity with a mould M provided with a surface S having a profile which is a negative of a desired optical profile Bg and is magnification thereof, filling the space between with a resin R which shrinks on curing to deform the blank, securing the other outer surface Bs<1> of the deformed blank to a supporting surface D, releasing the first surface from the resin with the blank held deformed by the supporting surface D, optically working flat the one surface Bs, and releasing the worked blank from the surface D so that the worked surface assumes the required profile. Specifcation 1,362,993 is referred to.

Multi-shape product

Multi-shape products of the present disclosure comprise two components: a matrix component and a fiber component that is embedded or otherwise disposed in the matrix component. The matrix component exhibits certain shape memory properties. The fiber component interpenetrates the matrix component to facilitate fixing of the multi-shape product in various temporary shapes.

Heat shrinkable polyvinyl chloride film

ABSTRACT OF THE DISCLOSURE A heat shrinkable polyvinyl chloride film which shrinks more than 60% in one direction or more than 80% as an area shrinkage is prepared by stretching a film comprising 5 to 20 wt. parts of a vinyl chloride-vinyl acetate type copolymer having a vinyl acetate content of 10 to 15 wt. % and an average polymerization degree of more than 700 and 100 wt. parts of polyvinyl chloride at a special high stretch ratio.

Making shrink-fit objects

Silane is grafted upon polymer molecules and the material is shaped (e.g., extruded or injection-molded) and caused to cross-link. Both steps must be completed before expanding (following reheating, if necessary) and cooling the object at the expanded state. Cap- and sleeve-making is disclosed, including internal as well as external exposure to water for cross-linking, possibly combined with the requisite preheating for the expansion.

Low temperature shrinkable tubular polyvinyl chloride film for heat-shrinkable package and its preparation

(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。

Polyalkene shrink film - by stretching primary film after irradiation

Polyalkene stretched films with powerful shrinkage on heating are made by irradiating primary polyalkene films (esp. ethylene (co)polymer films) contg. =10% of a light-sensitising agent with non-ionising continuous high energy sources (esp. a swirl flow plasma arc) of 350 watt/cm2 steradian at source, in which =30% of the radiation has a wave length of 4000 angstroms and >=70% of the radiation has a wave length of >4000 angstroms, after which the film is stretched by >=100% in >=1 direction. Pref. polyethylene film 0.13-1.3 mm thick contg. 0.5-2 wt % of a light sensitising agent such as benzophenone is biaxially oriented by >=300% in each direction to give a shrink film with better heat resistance, and high shrink at elevated temp. making it esp. suitable as a packaging film. Irradiation also allows faster stretching of the film, thus giving higher rates of prodn.

High speed manufacturing using shape memory polymer composites

Structurally strong composites are formed with shape memory polymer resins to create composites with shape memory properties. A system and method for using these composite structures to quickly manufacture composite products involves: 1) creating a preform composed of a shape memory polymer composite (2); 2) heating or otherwise activating the shape memory polymer; 3) using a mold (4) to deform the composite material to a desired shape; and 4) cooling or otherwise deactivating the shape memory polymer so that the composite structure retains the desired mold shape.

Recoverable polyethylene composition and product

(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。

Heat-shrinkable polyimide film and production thereof

Oriented films of ethylene polymers

Heat shrinkable tube of polyvinyl chloride for protecting stem of cut flowers

A heat shrinkable tube of polyvinyl chloride for covering the stem of cut flowers, said heat shrinkable tube having the following properties: (a) a shrinkage at 60° C. of 8% or less in the lengthwise direction, and from 10% to 20% in the circumferential direction; (b) a shrinkage at 80° C. of 20% or less in the lengthwise direction, and from 35% to 45% in the circumferential direction; (c) a shrinkage-initiating temperature in the circumferential direction of from 40° C. to 55° C; (d) a softening temperature of from 40° C. to 55° C; and (e) a thickness of from 50 μm to 100 μm.

Poly(tetramethyleneterephthalate) crosslinked by irradiation

Crosslinking, e.g., by irradiation, of a polymer comprising poly(tetramethyleneterephthalate) is made possible by the addition of a member selected from the group consisting of triallyl cyanurate and N,N'-m-phenylenedimaleimide. The resulting crosslinked modified polymer may be rendered heat recoverable.

Patent FR2221408A1

Patent JPS62501695A

(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。

Process for the production of shrinkable films of polyolefines or copolymers thereof

Patent JPS596215B2

Process for the production of shrink articles

RESETTABLE POLYETHYLENE COMPOSITION AND ITEM.

Heat restoration type molding and its preparation

Komprimerad platta innefattande en kropp av ett poroest elastiskt material

Película de poliéster termorretráctil y envases

Una película de poliéster termorretráctil hecha de una resina de poliéster que comprende poli(tereftalato de etileno) como componente principal y contiene al menos 13% en moles de al menos un componente monómero capaz de formar un componente amorfo en los componentes totales de la resina de poliéster, que satisface los siguientes requisitos (1) a (4): (1) la contracción en agua caliente, en la dirección longitudinal, es de no menos el -2% y no más del 4%, cuando la película de poliéster termorretráctil se trata en agua caliente a 80ºC durante 10 segundos; (2) la contracción en agua caliente, en la dirección de la anchura es de no menos de 50% y no más del 80%, cuando la película de poliéster termorretráctil se trata en agua caliente a 95ºC durante 10 segundos; (3) el número de roturas iniciales, que es el número de roturas antes de una extensión del 5%, es de no más de 7 cuando la película de poliéster termorretráctil es sometida repetidamente a un ensayo de tracción 10 veces en la dirección longitudinal, usando un equipo de ensayo de tracción con una distancia entre mordazas de 100 mm después de envejecer en una atmósfera con el 85% de HR a 30ºC, durante 672 horas; y (4) la fuerza de rasgado perpendicular a la dirección longitudinal por espesor unidad es de no menos de 300 N/mm y no más de 410 N/mm después de que la película de poliéster termorretráctil se contraiga en un 10% en la dirección de la anchura en agua caliente a 80ºC, En donde la película de poliéster termorretráctil es (i) una película de una única capa o (ii) una película estratificada que tiene una estructura en capas X/Y/X, en donde X es una capa de una resina de poliéster de alta viscosidad intrínseca (VI), e Y es una capa de una resina de poliéster de baja VI, en donde la viscosidad intrínseca de la capa X y de la capa Y difieren, una de otra, entre 0,01 dl/g y 0,08 dl/g.

Fluorpolymermischungen.

Hochgeschwindigkeitsfertigung unter verwendung von formgedächtnis-polymerverbundwerkstoffen

Formgedächtnis-polymer

Multistage foaming of foamable preform

Sensor enthaltend formgedächtnismaterialien mit polyelektrolytsegmenten

Komprimeret plade omfattende et legeme af et porost materiale

Fluorpolymermischungen.

Рама к термоусадочному устройству с электрообогревом термоусадочных пленок или кожухов, которыми обернут штабель предметов

Использование: изобретение касаетс  рамы к термоусадочному устройству с электрообогревом термоусадочных пленок или кожухов, которыми обернут штабель предметов . Сущность изобретени : рама содержит патрубок дл  подключени  к воздухозаборнику , воздухораспределительные и воздуховодные каналы и канал дл  выхода нагретого воздуха. В воздуховодных каналах размещены электронагревательные элементы . Дл  того чтобы удлинить путь нагретого электронагревательными элементами воздуха, каждый воздуховодный канал в плоскости перпендикул рного сечени  рамы образован параллельными участками стенки рамы, ее криволинейным участком и перегородкой, расположенной между параллельными участками стенки рамы, с образованием V-образного пути дл  потока воздуха. Нагревательные элементы должны быть расположены по крайней мере в одном из V-образных колен пути потока. 23 з.п.ф- лы, 4 ил.

立体造形物及其制造方法

本发明提供立体造形物及其制造方法。该立体造形物，是由热塑性树脂构成的片状的基材在棱线处弯曲变形而成的，其特征在于，在至少上述棱线处的、上述基材的弯曲而成为外侧的面上覆盖有热膨胀层，该热膨胀层在被加热到上述热塑性树脂的热变形温度以上的情况下膨胀，上述热膨胀层在上述棱线处膨胀。

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热收缩性聚酯系膜的制造方法、热收缩性聚酯系膜及包装体

本发明提供一种缝纫眼启封性非常好、且作为饮料容器用的标签使用时的保存后的耐裂性优良的热收缩性聚酯系膜。其是由以对苯二甲酸乙二醇酯为主要的构成成分、在全部聚酯树脂成分中含有13摩尔％以上能够成为非晶质成分的1种以上单体成分的聚酯系树脂所构成的热收缩性聚酯系膜，其中，具有特定的热收缩特性和特定的热收缩处理后的力学特性。

Process for manufacturing heat-shrinkable polyester-based film, heat-shrinkable polyester-based and package

热收缩性聚酯系膜及包装体

本发明提供一种缝纫眼启封性非常好、且作为饮料容器用的标签使用时的保存后的耐裂性优良的热收缩性聚酯系膜。其是由以对苯二甲酸乙二醇酯为主要的构成成分、在全部聚酯树脂成分中含有13摩尔％以上能够成为非晶质成分的1种以上单体成分的聚酯系树脂所构成的热收缩性聚酯系膜，其中，具有特定的热收缩特性和特定的热收缩处理后的力学特性。

Heat-shrinkable polyester film, packages and labels

Thermoplastisches Polyesterharz und daraus hergestellte isolierter Draht, elektrisch isoliertes Kabel und wärmeschrumpfbares Rohr

Multistage foaming of foamable preform

オーバーモールドインサート及びそれを形成するための方法

オーバーモールドインサート及びそれを形成するための方法。本開示は、内部残留応力が低減されたオーバーモールドインサート（１００）及びオーバーモールドインサートを形成するための対応する方法に関する。オーバーモールドインサートは、高分子ハウジングと、金属又は金属合金テーパ状インサート（１０４、３０２）と、ハウジングとテーパ状インサートの遠位端との間に配置された圧縮要素（１０６、３０４）とを有する。形成中、テーパ状インサート及び圧縮要素はモールド内に配置される。高分子ハウジング材料は加熱され、且つモールドに充填される。高分子ハウジングが冷却されるにつれて、圧縮要素は高分子ハウジングとテーパ状インサートとの間で圧縮される。形成されたオーバーモールドインサートは、非テーパ状インサートから形成される対応するインサートに比して低減された内部残留応力を有する。【選択図】図３（ｂ）

Verfahren zur herstellung von einer mikrostrukturierten optischen faser

包覆模制插入件及其形成方法

包覆模制插入件及其形成方法。本披露涉及具有降低的内部残余应力的包覆模制插入件(100)以及用于形成这些包覆模制插入件的相应方法。这些包覆模制插入件具有聚合物壳体；金属或金属合金锥形插入件(104，302)和布置在该壳体与该锥形插入件的远端之间的压缩元件(106，304)。在形成过程中，将该锥形插入件和压缩元件放置在模具内。聚合物壳体材料被加热并且填充到该模具中。随着该聚合物壳体冷却，该压缩元件在该聚合物壳体与该锥形插入件之间被压缩。相对于由非锥形插入件形成的相应插入件，所形成的包覆模制插入件具有降低的内部残余应力。

Covering method

立体造形物及其制造方法

本发明提供立体造形物及其制造方法。该立体造形物，是由热塑性树脂构成的片状的基材在棱线处弯曲变形而成的，在至少上述棱线处的、上述基材的弯曲而成为外侧的面上覆盖有热膨胀层，该热膨胀层在被加热到上述热塑性树脂的热变形温度以上的情况下膨胀，上述热膨胀层在上述棱线处膨胀。

热缩绝缘管连续扩张工艺及装置

本发明提供一种热缩绝缘管连续扩张工艺及装置，其中，所述热缩绝缘管连续扩张工艺包括如下步骤：S1.将热缩绝缘管进行辐照处理；S2.将经过辐照处理的热缩绝缘管进行预热处理；S3.完全预热后，将整根热缩绝缘管进行连续扩张，扩张后，冷却成型；S4.对经步骤S3处理后的热缩绝缘管进行表面清洗；S5.对清洗后的热缩绝缘管进行自动裁切。本发明的热缩绝缘管连续扩张工艺减少了在分段扩张中的繁杂工序，且提高了自动化程度，形成了完整自动的扩张程序，并且提高了工作效率，大大降低了人工成本。