Abstract: Novel styrene-based resin compositions comprising a styrene-based resin having a mainly syndiotactic configuration in compbination with one or more of: (A) thermoplastic resins other than the styrene-based resin, (B) a rubber polyers, and (C) inorganic fillers. The compositions have improved heat resistance and impact resistance over non-syndiotactic styrene-based resin compositions.

Abstract: The invention relates to a flame retardant polyamide composition comprising at least one polyamide and a polymerized bromostyrene. In particular, the invention relates to polyamide compositions comprising a polymerized bromostyrene with a bromine content of more than 61% (wt).

Abstract: Fibers having increased strength and small diameters can be produced from compositions comprising long chain branched syndiotactic vinyl aromatic polymers. Due to the increased fiber strength, less strand breakage occurs during processing which increases process productivity and yield.

Abstract: A thermoplastic composition which may be unvulcanized or vulcanized is provided which comprises a polymer blend of an elastomeric thermoplastic engineering resin and a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene. A process for preparing a dynamically vulcanized composition is also provided.

Abstract: The present invention relates to a golf ball, comprising a cover, a core and optional intermediate layers, wherein the various ball components are formed from compositions comprising a polyamide, in the form of a homopolymer, a copolymer or mixtures thereof. The compositions include a blend of about 1 wt. % to about 99 wt. % of at least one sulfonated and/or phosphonated polymer and about 99 wt. % to about 1 wt. % of at least one polyamide polymer. The polyamides of the present invention comprise polyamides and polyamide copolymers, such as polyamide block copolymers. The sulfonated and/or phosphonated polymer preferably comprises sulfonated thermoplastic elastomers, sulfonated thermoplastic polymers, and mixtures thereof.

Abstract: Homo- or copolymers A composed ofA.sub.1) 40-100% by weight of monomers of the general formula I ##STR1## A.sub.2) 0-60% by weight of monomers of the general formula II ##STR2## and A.sub.3) 0-10% by weight of further monomers capable of free radical polymerization,the percentages by weight of the monomers A.sub.1) to A.sub.3) summing to 100% andR.sup.1 and R.sup.4 being identical or different radicals and each being hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.2, R.sup.3, R.sup.5, R.sup.6 being identical or different radicals and each being hydrogen or C.sub.1 -C.sub.4 -alkyl,with the proviso that at least two radicals from the group consisting of R.sup.1, R.sup.2 and R.sup.3 and from the group consisting of R.sup.4, R.sup.5 and R.sup.6 are hydrogen, andR.sup.7 is alkyl, cycloalkyl, aryl or aralkyl,are used as branching agents for amino-containing thermoplastic polymers.

Abstract: The present invention relates to a modifier composition, a stock mixture and a final composition comprising a fluoro elastomer and a thermoplastic polyamide, as well as to the film obtained from the final composition.

Abstract: Disclosed are a polybutene-1 resin composition comprising a polybutene-1 resin and a Form-II to Form-I crystal transformation accelerator, and a method of accelerating the Form-II to Form-I crystal transformation comprising molding the polybutene-1 resin composition and allowing the molded product to stand at about 0 to 50.degree. C., the crystal transformation accelerator being an amide compound.

Abstract: Fibers having increased strength and small diameters can be produced from compositions comprising long chain branched syndiotactic vinyl aromatic polymers derived from the polymerization of a vinyl aromatic monomer in the presence of from 10 to 1000 ppm, based on the amount of vinyl aromatic monomer, of a multifunctional monomer having more than one olefinic functionality. Due to the increased fiber strength, less strand breakage occurs during processing which increases process productivity and yield.

Abstract: A film for adhering to a molding paste composite during its manufacture, said film being formed from a blend of a film forming polyamide resin and at least one release agent material selected from the group consisting of N, N' ethylene bis amides of the formula R.sub.1 --CO--NH--CH.sub.2 --CH.sub.2 --NH--CO--R.sub.2 wherein R.sub.1 is an aliphatic hydrocarbon chain of about 14 to about 42 carbon atoms, and R.sub.2 is a hydrogen atom or an aliphatic hydrocarbon of about 14 to about 42 carbon atoms, wherein the release agent material is present in an amount such that after the paste composite is formed, substantially all of the film can be removed from the surface of the composite. Also described are processes for making sheet molding and thick molding composites using such films.

Abstract: A novel, continuous process for the manufacture of novel higher molecular weight and higher acid numbered maleated polypropylenes with lower color at higher efficiencies involving specified ratios of polypropylene, maleic anhydride, and free radical initiator is described. The novel maleated polypropylenes have an acid number greater than 4.5, a yellowness index color of no greater than 76, and a number average molecular weight of at least 20,000. The process entails continuously forming an intimate mixture of molten polypropylene and molten maleic anhydride at one end of a reactor, continuously introducing a free radical initiator, and continuously removing high acid number high molecular weight maleated polypropylene of low color from the opposite end of the reactor.

Abstract: Plastic compositions, containers useful in the storage of red blood cells, and methods for providing such red blood cell storage containers and for storing red blood cells are disclosed. The plastic composition includes a polyolefin copolymer and a plasticizer. The flexibility of such plastic compositions and containers made thereof is substantially unchanged upon heating to a high temperature relative to its flexibility before such heating.

Abstract: A fine fiber-reinforced elastomer composition (A) having a high elastic modulus, mechanical strength and creep resistance includes (a) 100 parts by weight of elastic component having a glass-transition temperature of 0.degree. C. or less, (b) 30 to 500 parts by weight of a polyolefin component and (c) 10 to 500 parts by weight of a polyamide component dispersed in the fine fiber form in the matrix consisting of the components (a) and (b), these components (a), (b) and (c) being chemically bonded to each other through a binding agent (d), for example, a silane coupling agent, and is useful for producing an elastic material having a high elastic modulus, an excellent fatigue resistance and a high isotropy, by admixing an additional elastic component (B) to the elastomer composition (A).

Abstract: A composition comprising a polyamide, a polyolefinic modifier, and an ethylene/acrylic acid copolymer.

Abstract: Novel maleimide copolymers have at least two monomeric units, a maleimide unit and a vinyl unit having a pendant group, the pendant group having two to twenty-one carbon atoms, at least one nitrogen atom and at least one oxygen atom. The copolymer has an average molecular weight between about 1,000 and about 6,000,000. Preferred maleimide copolymers include acrylamide/maleimide copolymers, N-vinyl amide/maleimide copolymers, vinyl lactam/maleimide copolymers, alkenyl cyclic imino ether/maleimide copolymers, and acryloylamide/maleimide copolymers. The substantially water soluble maleimide copolymers are useful for inhibiting the formation of clathrate hydrates in a fluid having hydrate-forming constituents by reducing the rate of nucleation, growth, and/or agglomeration of gas hydrate crystals in a petroleum fluid stream, thereby inhibiting the formation of a hydrate blockage in the pipe conveying the petroleum fluid stream.

Abstract: A long fiber-reinforced polymer alloy resin composition (C) is provided which is obtained by blending a master batch (A) containing a long fiber reinforcement (a2) having a length of 3 to 30 mm in a resin matrix of a polyamide resin (a1), with a substantially polymer-alloyed resin diluent (B) obtained by melt kneading 45 to 20% by weight of a crystalline polyolefin resin (b1) and 55 to 80% by weight of a polyamide resin (b2), the crystalline polyolefin resin (b1) containing a modified olefin crystalline polymer (b11) having been substantially modified with unsaturated carboxylic acids. In this resin composition (C), the amount of the long fiber reinforcement (a2) is in the range of 10 to 60% by weight, and the amount of the crystalline polyolefin resin (b1) in resin components ((a1)+(b1)+(2)) other than the long finer reinforcement (a2) is in the range of 20 to 45% by weight. This resin composition (C) is excellent in tensile strength and particularly excellent in repeated impact resistance properties.

Abstract: New ethylene/acid copolymer ionomers which contain both (meth)acrylic acid and certain dicarboxylic acid monomers are described. The polymers may be melt processed as readily as ethylene/(meth)acrylic acid dipolymer ionomers, in contrast to ethylene/acid copolymer ionomers containing only dicarboxylic acid monomer derived in-chain acid units. Polymers with typical levels of (meth)acrylic acid and low levels of diacid provide ionomers comparable to existing ionomers, but which have adhesive and polymer blend compatibilizing characteristics, while polymers with higher levels of diacid will exhibit properties which depend on in-chain diacid derived units.

Abstract: Polyalkenylaromatic-polyethylene copolymers are prepared using protected functional organolithium initiators. Polymerization of an alkenylsubstituted aromatic monomer followed by ethylene, results in a protected functional block polystyrene-co-polyethylenyllithium. Termination with a functionalizing agent followed by deprotection produces polymeric products with high functionalization at the initiating chain-end and at least partial functionalization at the terminal chain-end.

Abstract: Thermoplastic elastomers having improved surface properties are provided by incorporating a copolymer of a functionalized polyolefin and a polyamide into a thermoplastic elastomer selected from(A)(a) a thermoplastic polyolefin homopolymer or copolymer, and(b) an olefinic rubber which is fully crosslinked, partially crosslinked or not crosslinked, and optionally(c) common additives;(B)(a) a block-copolymer of styrene/conjugated diene/styrene and/or its hydrogenated derivative, optionally compounded with(b) a thermoplastic polyolefin homopolymer or copolymer and/or(c) common additives and(C) any blend of (A) and (B).The invention further relates to a process of making these modified thermoplastic elastomers, their use and shaped articles comprising them.

Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Z--O--C(R.sup.1 R.sup.2 R.sup.3)wherein M is an alkali metal; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl groups containing lower alkoxy, lower alkylthio, and lower dialkylamino groups, aryl or substituted aryl groups containing lower alkoxy, lower alkylthio, and lower dialkylamino groups, and their employment as initiators in the anionic polymerization of olefin containing monomers in an inert, hydrocarbon solvent comprising reacting an omega-protected-1-haloalkyl with lithium metal dispersion having a particle size between 10 and 300 millimicrons in size, at a temperature between 35.degree. and 130.degree. C. in an alkane solvent containing 5 to 10 carbon atoms.

Abstract: Post consumer recyclable plastics are combined with a ethylene-octene copolymer and a polyamide to prepare a resin composition that can be used in conventional molding processes to fabricate new and useful plastic articles of manufacture.

Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Q.sub.n --Z--OA(R.sup.1 R.sup.2 R.sup.3)wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is an aromatic substituted saturated hydrocarbyl group produced by the incorporation of one or more alkenyl substituted aromatic hydrocarbons containing 8-25 carbon atoms into the M--Z linkage; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; A is an element selected from carbon and silicon; R.sup.1, R.sup.2, and R.sup.

Abstract: A polyamide resin comprising the reaction product obtained by the reaction of an acid component comprised of a major concentration of a dimer acid and minor concentration of a monobasic acid and an amine component comprised of a major concentration of a short-chain alkylenediamine, a first minor concentration of a medium-chain alkylenediamine and second minor concentration of a polyoxyalkylene diamine having a molecular weight greater than about 500 is provided. The polyamide resin is used to form a blend of containing the polyamide in a major amount by weight and a first minor amount by weight of a polar wax and a second minor amount by weight of a polyolefin elastomer. The composition is used to reinforce a footwear upper, e.g. as a print on box toe material.

Abstract: The invention relates to a process for increasing the molecular weight of polycondensates, which comprises heating a polycondensate in the temperature range below the melting point and above the glass transition temperature in the solid phase of the polymer with additionof at least one sterically hindered hydroxyphenylalkylphosphonic ester or monoester.

Abstract: The present invention provides a retainer made of synthetic resin for a rolling-contact element such as a roller of a rolling-contact bearing or a one-way clutch, which is used in a lubricating oil. The retainer comprises an aliphatic polyamide resin as a matrix and a hydrocarbon polymer having no oil resistance and good compatibility with the matrix, which is dispersed in the matrix. Examples of the thermoplastic hydrocarbon polymer include olefin polymer and styrene polymer.

Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Z--O--C(R.sup.1 R.sup.2 R.sup.3)wherein M is an alkali metal; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, aryl or substituted aryl groups, and their employment as initiators in the anionic polymerization of olefin containing monomers in an inert, hydrocarbon solvent comprising reacting an omega-protected-1-haloalkyl with lithium metal dispersion having a particle size between 10 and 300 millimicrons in size, at a temperature between 35.degree. and 130.degree. C. in an alkane solvent containing 5 to 10 carbon atoms.

Abstract: The present invention relates to a pressure sensitive adhesive foam with a percentage of theoretical density less than 90 wherein the foam has an intrinsic adhesion of greater than about 1 N/cm and a compression set under constant deflection of less than about 60%. The present invention further includes a pressure sensitive adhesive foam comprising a thermoplastic block copolymer; a tackifying resin; an isocyanate terminated monomer or oligomer; a polymer comprising a backbone of selected from the group consisting of polybutadiene, polyester and polyether, wherein the polymer contains at least 2 active hydrogens capable of reacting with the isocyanate terminated monomer; and expandable particulate materials. The invention finally further comprises a method of forming the above film.

Abstract: Polyamide resin compositions which are useful for molding parts with excellent malleability, thoughness, rigidity, and high heat deformation temperatures are prepared from 10 to 89% by weight of a polyamide resin, 1 to 30% by weight of at least one type of elastomer selected from among elastomers composed of ethylene/propylene/dienes, elastomers composed of ethylene/unsaturated carboxylic acid unsaturated carboxylic acid esters, and elastomers obtained by graft-modifying these elastomers, and from 10 to 60% by weight of a copolymer of ethylene and cyclic olefin that is noncrystalline and has a glass transition temperature of from 100.degree. to 190.degree. C.

Abstract: Hoses are often reinforced with fabric to improve their performance characteristics, such as burst strength. For instance, radiator hose used in automotive applications is generally reinforced with continuous yarn. However, it is a labor-intensive process to manufacture such hoses which include fiber reinforcements. A substantial amount of material waste also generally occurs in the manufacture of such fiber-reinforced hose. By utilizing the technique of this invention, hose which has a high level of burst strength can be manufactured without including continuous yarn reinforcement.

Abstract: There are disclosed a styrenic resin composition which comprises 1 to 95% by weight of a (a) styrenic polymer having syndiotactic configuration (SPS) or modified SPS; 1 to 95% by weight of a (b) thermoplastic resin having a polar group; 1 to 50% by weight of a (c) rubbery elastomer having an affinity for the component (a); and 0.1 to 10% by weight of a (d) compatibilizer having a polar group, a styrenic resin composition same as above except that the component (c) has a polar group capable of reacting with the component (b) as well as an affinity for the component (a) and a styrenic resin composition further comprising 1 to 350% parts by weight of an (e) inorganic filler based on 100 parts by weight of the above resin components. According to the present invention, there are obtained styrenic resin compositions that are well suited for various industrial materials and excellent in rigidity, heat resistance, impact resistance and water resistance.

Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.

Abstract: A combination of polymeric components provides desired characteristics in forming medical instruments such as catheters and balloons for dilatation catheters. For example, a balloon material is formed from a blend of polymeric components, including a first crystalline polymeric component and a second softening polymeric component. Where the first two components are generally incompatible, the balloon material can also include a third compatibilizing agent to facilitate blending the first two polymeric components together. The first polymeric component can be a branched or straight chain polyamide having a molecular weight of at least about 5000, or a polyester prepared from aromatic dicarboxylic acids having 8 to 14 carbon atoms or aliphatic dicarboxylic acids having from 2 to 12 carbon atoms, and at least one glycol having the formula HO(CH.sub.2).sub.n OH, where n is an integer from 2 to 10, neopentyl glycol and cyclohexane dimethanol.

Abstract: A process for manufacturing polyamide molded articles having improved resistance to discoloration while also having good heat stability involving preparing masterbatch pellets of at least a polyamide and a heat stabilizer, diluting the polyamide masterbatch pellets with a dilution polyamide resin to form a polyamide mixture, and molding the polyamide mixture into a molded article.

Abstract: A method of improving the tribological properties of a polyketone polymer are presented in which polyketone polymer starting materials are blended with an aramide. Blends produced according to this process are also presented. The blend is particularly useful in the manufacture of articles used in applications where surfaces are in contact during motion.

Abstract: There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a block of a polymer of a conjugated diene, different from that of formula (1), of at least 4 carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from an aryl-substituted olefin, such as styrene, and the conjugated diene used to polymerize the block I, the second middle polymer block of the diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block.

Abstract: Laminar articles having improved barrier properties to organic solvents and gases, fabricated directly from polyolefin and modified polyamide, are disclosed. The modified polyamide is a blend of 97-40 wt % polyamide and 3-60 wt % of compatabilizer which is a polyether ester amide block copolymer or a mixture of the block copolymer and alkylcarboxyl-substituted polyolefin.

Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Q.sub.n --Z--OA(R.sup.1 R.sup.2 R.sup.3)wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenylsubstituted aromatic hydrocarbons; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; A is an element selected from carbon and silicon; R.sup.1, R.sup.2, and R.sup.

Abstract: The present invention relates to a multiphase thermoplastic composition based on polyamide resin containing at least one ethylene/alkyl (meth) acrylate/unsaturated epoxide terpolymer.

Abstract: Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles.

Abstract: A milled carbon fiber reinforced polymer having increased abrasion resistive characteristics. The reinforced polymer comprises a base resin selected from the group consisting of polyolefins and polyamides. The base resin is combined with an amount of milled carbon fibers and further may be combined with polytetrafluoroethylene. The resulting composite materials have excellent friction and wear characteristics and are useful in the production of injection molded parts. The molded parts have a high impact strength, exhibit dimensional stability, are abrasion resistive, and are static dissipative, with the composite materials having particular utility as support fixtures for semiconductors during certain processing operations.

Abstract: A pregellable adhesive containing several polymers, of which at least one is olefinically unsaturated and the other capable of curing by esterification, prepared in such a way that it cures by two different chemical reaction mechanisms which can be activated successively and catalyzed at least substantially independently of one another.

Abstract: The invention relates to impact modifiers for polyamide compositions which improve the impact strength of the polyamides without adversely affecting the flexural modules of the composition. The impact modifiers comprise blends of general purpose rubbers and a halogenated copolymer of a C.sub.4 to C.sub.7 isomonoolefin and an alkylstyrene. In addition, the invention is drawn to a polyamide composition containing such impact modifiers.

Abstract: A melt-processable block copolyesterimide comprising the repeating units (I), (II) and (III) and, optionally, a repeating unit (IV), wherein (I) is a repeating unit of the formula ##STR1## wherein R is an aliphatic polyether chain and/or a polysiloxane chain; (II) and (III) are repeating units of the formulas ##STR2## wherein Z is hydrogen, alkyl, alkoxy, aryl, halogen and w is zero or one; and (IV) is a repeating unit of the formula ##STR3## wherein Z' is hydrogen, alkyl, alkoxy, aryl or halogen and the phenylene ring is substituted in by Z' in the m- or p-positions. The repeating unit of formula (I) is present in an amount of 5 to 50 mole-%, the repeating unit of formula (II) is present in an amount of 10 to 80 mole-%, the repeating unit of formula (III) is present in an mount of 5 to 50 mole-% and the repeating unit of formula (IV) is present in an amount of 0 to 45 mole-% of the block copolyesterimide.

Abstract: The invention relates to a translucent and flexible polyamide-based composition, which is easy to process, in particular by extrusion, comprising: (A) from 50 weight-% to 95 weight-% 1) of at least one polyamide resin (I), 2) of various additives (IV) such as stabilizers, mould-release agents, lubricants, crystallization accelerators, pigments, organic and/or inorganic fillers or dyes, or antioxidizing agents, 3) optionally of at least one plasticizing agent (V), and (B) from 5 weight-% to 50 weight-%: (a) of at least one ethylene-alkyl (meth)acrylate-unsaturated dicarboxylic acid anhydride terpolymer (II), (b) of at least one ethylene-alkyl (meth)acrylate copolymer (III) with 1/30.ltoreq.(b)/(a).ltoreq.2. In accordance with the present invention, the flexural modulus of the composition, measured according to ISO standard 178, is less than or equal to 2/3 of the flexural modulus of the PA resin (I) alone and is strictly less than 750 MPa.

Abstract: A polyamide hot melt adhesive is provided. It comprises the polyamide condensation product of substantially equivalent quantities of (a) an acid component consisting essentially of one or more polymeric fatty acids and one or more dicarboxylic acids and (b) an amine component consisting essentially of (i) two or more non-cyclic aliphatic diamines and (ii) one or more amine-terminated polyglycol diamines. The amine component is substantially free of piperazine-containing polyamines. The adhesive has an open time of at least 120 seconds. Preferred non-cyclic aliphatic diamines are ethylenediamine and 1,6-diaminohexane, preferably present in about equimolar amounts. The composition may further comprise an aromatic sulfonamide plasticizer. The adhesive is particularly useful for spraying applications.

Abstract: The present invention provides a polyamide resin composition which has low water absorption and simultaneously has satisfactory combustion properties. Illustrative compositions contain 20-80 parts by weight of polyamide resin and 80-20 parts by weight of polyphenylene ether resin or a mixture of this resin and polystyrene resin, as well as 0.01-10 parts by weight of a compatibilizer, 1-50 parts by weight of an uncured phenol novolak resin, and 0-80 parts by weight of a rubber component wherein the weights of the compatibilizer, uncured phenol novolak resin and rubber component is based on a total of 100 parts by weight of polyamide and polyphenylene ether resins.

Abstract: The synthesis and characterization of a series of novel (AB).sub.n multiblock copolymers, typically thermoplastic elastomers, containing polyisobutylene as the soft phase and polyamides as the hard phase are described. First, carboxyl ditelechelic polyisobutylene prepolymers and isocyanate ditelechelic polyisobutylene prepolymers were synthesized, both of which were subsequently reacted under solution polycondensation conditions with dicarboxylic acids and diisocyanates. The melting points of the polyamide hard phases were in the 223.degree.-284.degree. C. range. The decomposition temperatures (296.degree.-337.degree. C.) in air and nitrogen of these thermoplastic elastomers were quite similar; in contrast, these properties of polytetrahydrofuran-based thermoplastic elastomers are noticeably lower in air. Melt processing of these novel polyisobutylene-based thermoplastic elastomers is possible.

Abstract: Thermoplastic elastomers containing ethylene, alpha-olefin, vinyl norbornene elastomeric polymers provide superior cure levels to thermoplastic elastomers containing ethylene, alpha-olefin, diene monomer elastomeric polymers with other dienes than vinyl norbornene. The elastomeric polymers, along with a thermoplastic, curative, and other components will have cure levels in excess of 95 percent. Lower diene incorporation into the polymer combined with lower curative levels yield a fabricated article with improved resistance to compression set and improved heat aging.

Abstract: Bilayer filaments and fused cords thereof are described. The product is particularly useful for tire cord and filaments include a core of a partially crystalline, oriented polymer and a shell or sheath formed of a blend of robber and a relatively low melting polymer. A particularly preferred embodiment includes a poly(ethylene terephalate) core as well as a sheath of copolyester blended with poly(styrene-elastomer-styrene) elastomer.

Abstract: A composition that includes an olefinic-terminated polyalkadiene that includes carboxy ester linking groups and at least one nascent secondary hydroxyl group that is capped with a monoisocyanate. The composition also includes a free radical-polymerizable monomer such as an olefinic monomer and, optionally, a second polymeric material. In a preferred embodiment the composition is an adhesive that also includes a phosphorus-containing compound and an ambient temperature-active redox catalyst system.