Abstract: What are disclosed are plastisols comprising a finely divided vinyl chloride polymer and the usual fillers, additives, and plasticizers, to which plastisols is added, as an adhesion promoter, the condensation product formed between (1) a polyaminoamide, comprising polymerized fatty acids and an excess of a polyalkylene polyamine and (2) a carboxylic acid or an ester thereof, and methods for coating or adhering a substrate with such plastisols by applying said plastisols to the substrate and baking at temperatures of 90.degree. C. and up.

Abstract: Articles having reduced thrombogenicity when in contact with blood products containing albumin and methods of their use are provided. The articles comprise at the surface of blood contact a water insoluble polymeric substrate material having covalently attached thereon aliphatic extensions of 14 to 20 carbon units. When exposed to blood the aliphatic chain extensions provide a hydrophobic binding site for albumin. The articles when implemented with whole blood or blood products selectively enhance albumin affinity binding to the exclusion of other blood components, and subsequently minimize thrombus formation.

Abstract: The instant invention relates to thermoplastically processable polyamides which are rendered flame retardant by means of a new flame retarding agent; the conversion product of cyanuric acid and triazine compounds having free --NH.sub.2 in a molar ratio of at least 2 triazine nuclei per mole of cyanuric acid. The properties of polyamide thermoplasts are changed only slightly through the incorporation of the new flame retarding agent.

Abstract: Disclosed is a curable resin composition comprising (a) at least one maleimide compound selected from the group consisting of N-(alkenylphenyl)maleimide derivatives, and dimers and polymers thereof and (b) one or more kinds of epoxy resins, each having at least one epoxy group in the unit molecule thereof. The resin composition may contain, besides the above two components, an amino compound as a further component (c). The resin composition may comprise a prepolymer of any two components among the three components (a), (b) and (c) and the remaining component. The resin compositions are useful as molding materials, for the fabrication of laminates, and as varnishes, including insulation varnishes and impregnating varnishes.

Abstract: Amino-group bearing, low molecular weight 1,3-butadiene polymers used as stabilizers for molded or unshaped plastics in amounts of 0.01 to 2.0 weight percent referred to the plastic, where the amino-group bearing component is derived from a substituted piperidine having the general formula: ##STR1## where R represents similar or different alkyl groups having 1 to 3 carbon atoms.

Abstract: A process for preparation of filler-containing polytetrafluoroethylene fine powder by coagulating polytetrafluoroethylene together with at least one filler selected from the group consisting of polyimide resins, polyamide-imide resins, polyamide resins and carbon fiber powders from their aqueous dispersion, characterized in that a water-insoluble organic liquid having a boiling point of from 30.degree. to 150.degree. C. and a surface tension of not more than 35 dyne/cm at 20.degree. C. is added to the aqueous dispersion under agitation at any stage from the start to the end of the coagulation.

Abstract: Polyamides such as nylon-6 type polyamides are prepared by the reaction or copolymerization of a major amount by weight of a lactam and a minor amount by weight of a graft copolymer of maleic anhydride on a low molecular weight liquid conjugated diene polymer or copolymer or of a copolymer of a conjugated diene and a monovinyl aryl monomer or a nitrile. For example, a graft of maleic anhydride on liquid butadiene/acrylonitrile copolymer is copolymerized with epsilon-caprolactam using an anionic lactam polymerization catalyst (a lactamate salt) like the reaction product of ethyl magnesium bromide and epsilon-caprolactam. The present invention may be useful in a RIM (Reaction Injection Molding) process. The resulting polyamides have improved impact strength and water resistance. They can be used to make automobile and truck bodies and parts.

Abstract: A resin composition comprising (A) a polymer having, in the molecule, at least two groups represented by the following structural formula (I): ##STR1## wherein R.sub.1 is isopropyl, sec-butyl, tert-butyl, a C.sub.5-20 alkyl group, a C.sub.3-20 cycloalkyl group, a C.sub.5-20 alkenyl group, a C.sub.3-20 hydroxyalkyl group, a C.sub.5-20 alkoxyalkyl group, a C.sub.3-20 aminoalkyl group, a C.sub.6-20 aryl group or a C.sub.6-20 arylalkyl group, and n is 0, 1 or 2, and (B) a polymer having an electron attractive group and an .alpha.,.beta.-ethylenic double bond adjacent thereto. Though said composition is stable at room temperature, it is crosslinked and cured at high temperatures because the amino group of the polymer (A) adds to the double bond of the polymer (B). Accordingly, said resin composition is suitable for use as a cathodic electrocoating material.

Abstract: Particles of two different normally solid materials are caused to react by generating free radicals on the surfaces of at least one of the solids by mechanical working, suitably by comminution, at cryogenic temperatures. At least one of the solids is preferably a polymeric material while the other may be a different polymer, a catalyst, a lubricity enhancing material, a filler, a pigment or the like.

Abstract: Vulcanizable polymer compositions, comprising a polymer blend and a curative system, and a process for preparing the compositions are provided. The polymer blend comprises a flux blend of a PVC, a carboxylated nitrile rubber and a nylon having a melting point of less than about 210.degree. C., and stabilizers. Vulcanizates of the polymer compositions have improved properties and may be used, for example, in spinning cots.

Abstract: Compositions containing a polymer of PTFE and a polymer capable of exhibiting an anisotropic melt characterized in that the compositions contain between 0.05 and 99.5% of PTFE and 0.5 to 99.95% by weight of the polymer capable of forming an anisotropic melt. The presence of a minor amount of the anisotropic melt-forming polymer, that is, from 0.5 to 50% by weight of the composition enables the processability of PTFE to be improved, even to the extent of providing an injection mouldable PTFE composition. Compositions containing 20 to 50% by weight of PTFE confer benefits on anisotropic melt-forming polymers, such as lubricity and greater versatility in fabrication operations. Concentration of 0.05 to 5.0% by weight of PTFE are particularly suitable for modifying the viscosity characteristics of the low melt viscosity anisotropic melt-forming polymers so that such anisotropic melt polymers are less subject to problems such as flashing and jetting during moulding.

Abstract: Thermosettable resin compositions are disclosed which comprise a mixture of (1) an unsaturated polymerizable monomer, (2) an unsaturated polymerizable resin selected from (a) unsaturated polyester or polyesteramide resins, (b) vinyl ester resins and (c) dicyclopentadiene modified unsaturated polyester of polyesteramide resins and (3) a poly(allyl)poly(alkenylphenol).

Abstract: The invention provides for a coating composition for metal surfaces wherein the binder is made up of (A) 10-80% by weight of a solid, powdered polyamide having a softening point of 110.degree.-230.degree. C. and an average particle size of 0.5-200 .mu. m, (B) 20-90% by weight of a hydroxyl groups-containing polymer having a number average molecular weight of 800-20,000 and a hydroxyl functionality of 1.5-6, and the composition also contains a cross-linking agent for component B in an amount such that the molar ratio of the reactive groups of the cross-linking agent to that of component B is 0.6-1.5, and 40-60% by weight of an organic solvent for component B, the boiling point thereof being 140.degree.-310.degree. C. The invention also relates to a process for coating a metal surface using said coating composition.

Abstract: Compositions containing a polymer of PTFE and a polymer capable of exhibiting an anisotropic melt characterized in that the compositions contain between 0.05 and 99.5% of PTFE and 0.5 to 99.95% by weight of the polymer capable of forming an anisotropic melt. The presence of a minor amount of the anisotropic melt-forming polymer, that is, from 0.5 to 50% by weight of the composition enables the processability of PTFE to be improved, even to the extent of providing an injection mouldable PTFE composition. Compositions containing 20 to 50% by weight of PTFE confer benefits on anisotropic melt-forming polymers, such as lubricity and greater versatility in fabrication operations. Concentration of 0.05 to 5.0% by weight of PTFE are particularly suitable for modifying the viscosity characteristics of the low melt viscosity anisotropic melt-forming polymers so that such anisotropic melt polymers are less subject to problems such as flashing and jetting during moulding.

Abstract: Polyamides from lactams are prepared by the reaction of an initiator compound, a liquid hydroxy containing nitrile copolymer and a lactam using as a catalyst a minor amount of a lactam anionic polymerization catalyst. The resulting polyamides exhibit high impact strength and improved dimensional stability or reduced sensitivity to dimensional change upon exposure to a high humidity environment.

Abstract: By the incorporation of small amounts of specific polyamides into polyalkenes, such as polypropylene and polyethylene, it is possible to significantly improve the dyeing properties, including color intensity, color homogeneity and color fastness, of the polyalkene. Polyamides useful for this purpose are derived from mixed dicarboxylic acids, diamine and triamine containing two primary and one tertiary amine groups.

Abstract: A flame-retardant and radiation-resistant polymer composition comprising a polymer and a halogenated acenaphthylene condensate having a structural unit of the formula (I) or (II): ##STR1## (wherein X is chlorine or bromine, n and n' are each an integer of 2 to 6, R is a substituent other than halogen, m and m' are each an integer of 0 to 4, n (or N')+m(or m').ltoreq.6, and when m or m' is 2 or more, each R may be the same or different) and a flame-retardant and radiation-resistant resin molded product prepared therefrom are herein disclosed.

Abstract: Polyamide molding and extrusion compositions prepared by melt-blending a polyamide resin and a polyamide reactive halogen functional elastomer. The invention includes a process for preparing the resin and the molded or extruded product.

Abstract: Vulcanizable mixes based on elastomeric copolymers of vinylidene fluoride with fluorinated or chlorofluorinated olefins, or with fluorinated vinyl ethers, and which comprise, as processing aid, at least one fluorinated polyamide, are disclosed.

Abstract: An acrylic fiber having improved basic dyeability and hot/wet properties, the fiber being made up of a blend of (a) at least 60 weight percent of a polymer of at least 35 weight percent of acrylonitrile copolymerized with up to 65 weight percent of at least one other mono-olefinic monomer and a minor amount of a sulfonated vinyl monomer with (b) 0.5 to 40 weight percent of the polyterephthalamide of a mixture of 2,2,4 and 2,4,4 trimethyl hexamethylene diamine, the fiber being made up of a two-phase heterogeneous suspension of the polyterephthalamide in a continuous phase of the acrylic polymer. Without the sulfonated vinyl monomer the fiber will have superior hot/wet properties but will show no improvement in dyeability, the dyeability of the fiber being enhanced only when the sulfonated vinyl monomer is present as a part of the acrylic polymer chain.

Abstract: This invention relates to medical technique and more particularly it relates to biodestructive materials used to manufacture elements for fixation of bone fragments.Said material contains a matrix of non-toxic polymer resolvable in the body consisting of hydrophilic and hydrophobic repeat units, and a reinforcing component of non-toxic fibres or threads resolvable in the body. The matrix polymer is preferably a copolymer of methyl methacrylate and N-vinyl pyrrolidone, and the reinforcing component is preferably fibre or threads of polyamide and oxycellulose.Said material can be used in medicine for fixation of bone fragments in fractures or injuries of bones.

Abstract: A binder composition which comprises (A) from 99 to 50% by weight of copolymer consisting of copolymerized units of (a) from 5 to 90% by weight of at least one aliphatic (meth)acrylate containing from 1 to 8 carbon atoms in the alcohol moiety; (b) from 0 to 60% by weight of at least one aromatic vinyl or isopropylene compound containing from 8 to 14 carbon atoms; (c) from 1 to 40% by weight of at least one comonomer selected from (I) at least one mono (meth)acrylate of an alcohol containing from 2 to 8 carbon atoms and having from 2 to 4 hydroxyl groups; and/or (II) at least one maleic acid semi-ester corresponding to the following general formula ##STR1## wherein R.sub.1 represents hydrogen or methyl; and R.sub.2 represents hydrogen, methyl, ethyl, propyl, i-propyl or phenyl; and (d) from 0 to 60% by weight of at least one other olefinically unsaturated comonomer; and (B) from 1 to 50% by weight of a saturated lactam.

Abstract: Compatibilized blends and composites of materials containing nitrile functionality with materials normally incompatible therewith are formed by mixing the components in the presence of an acid compatibilizing agent.

Abstract: Poly(meta-phenylene isophthalamide) comprising encapsulated filler, a process for the preparation of these compositions by addition of the filler to the polymer solution before precipitation, and molded articles prepared from these materials characterized by increased strength at equal filler loadings.

Abstract: Durable excellent water absorption property and antistatic property can be given to synthetic fiber by a simple method. In the method, a polymerization initiator is absorbed in the fiber and then the fiber is applied with a water-soluble polymerizable monomer and heat treated to form a polymer thereon.

Abstract: Novel lubricating oil polymer additives are obtained by the following:(1) by preparing, by anionic polymerization, a living diene polymer of Mn of between about 20,000 and 300,000;(2) by functionalizing the said polymer by means of an N-substituted lactam of the type of N-alkylcaprolactam, N-binylcaprolactam, and particularly of the type of N-alkylpyrrolidione and N-vinylpyrrolidone; and(3) by hydrogenating the said functionalized polymer.A variant method of preparing the said polymers comprises subjecting the living polymer to a metalation operation before functionalization; the hydrogenation operation is carried out before metalation or after functionalization.The said polymers may be used as additives which improve the viscosity index and the dispersing power of lubricating oils. The amount of additive added is between about 0.1 and 10 percent by weight.

Abstract: A stabilized synthetic polymer composition comprising(1) 100 parts by weight of a synthetic polymer,(2) 0.001 to 5 parts by weight of a poly(alkylated alkenylphenol) composed substantially of monomeric units represented by the following formula (I) ##STR1## wherein R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; R.sub.1 represents an alkyl group having 1 to 18 carbon atoms; and R.sub.2 represents a hydrogen atom or an alkyl group having 1 to 18 carbon atoms; and(3) 0.001 to 5 parts by weight of an auxiliary stabilizer selected from the group consisting of polyhydric alcohol esters of alkylthioalkanoic acids, polyesters of thiodipropionic acid and organic phosphite compounds.

Abstract: This invention relates to fiber blends, yarns and fabrics for use in lightweight garments offering protection against brief exposure to extreme thermal fluxes, the fiber blend comprising a component that fuses within 10 seconds upon exposure to a heat flux of 2 cal./cm..sup.2 /sec. and a component that in fabric form exhibits a flame strength of at least 20 mg. per denier for at least 10 seconds during exposure to a heat flux of 2 cal./cm..sup.2 /sec.

Abstract: 6-Nylons and 12-nylons having primary amino end-groups and an average degree of polymerization of about 5-60 are grafted onto elastomeric trunk polymers having anhydride groups, vicinal carboxylic groups, or carboxylic groups adjacent to alkoxycarbonyl groups by heating a mixture of the nylon and the trunk polymer, preferably under high shear conditions for about 1 minute or less to 30 minutes or more above the melting temperature of the nylon. The resulting elastomeric graft polymers are suitable for fabricating into a variety of articles, such as, for example, wire jacketing, hose, belts, seals, gaskets, and low pressure tires.