Abstract: An improved thermoplastic resin composition obtained by subjecting a mixture of at least an engineering plastic and a rubber material containing an .alpha.,.beta.-unsaturated carboxylic acids or their derivatives, to dynamic heat treatment in the presence of a carbon radical inducing agent. The thermoplastic resin composition of the invention excels in thermal resistance, rigidity, impact resistance, and moldability.

Abstract: The invention relates to a hardenable composition containingA) compounds having at least two activated double bonds (I) based on .alpha.,.beta.-unsaturated carbonyl compounds, .alpha.,.beta.-unsaturated carboxylic acid esters or .alpha.,.beta.-unsaturated nitrile groups,B) compounds containing either at least one primary amino group which is blocked by an aldehyde or ketone having not more than 10 C atoms or at least 2 groups which can be hydrolyzed to NH groups, andC) customary additives, if appropriate catalysts, if appropriate pigments and organic solvents.Either component A or component B or components A and B are based on a branched soluble acrylate copolymer P, which is obtainable by copolymerization ofa) 5 to 30% by weight of monomers having at least two ethylenically unsaturated polymerizable double bonds,b) 5 to 60% by weight of monomers having a functional group andc) 5 to 90% by weight of other ethylenically unsaturated monomers,the sum of a, b and c being 100% by weight.

Abstract: A conjugated diene series rubber composition comprises 100 parts by weight of a diene series rubber containing at least 30 parts by weight of a particular modified styrene-butadiene copolymer rubber, and 30-80 parts by weight of a specified carbon black, and is excellent in strength at breakage, abrasion resistance and low fuel consumption after vulcanization.

Abstract: A high volume amine-aldehyde initiator composition for two part acrylic adhesives is disclosed comprising a mixture of the amine-aldehyde condensate and a diluent comprising an epoxy ether, e.g. the diglycidyl ether of bisphenol A. The initiator compositions are designed for use in dispensing two part acrylic adhesives from self-proportioning twin pack cartridge dispensers at adhesive:initiator ratios of 20:1 or less, e.g. 10:1.

Abstract: Coupling of block base copolymers terminated by a lithium atom of the typical formula S-B-Li, in which S is a monovinylaromatic hydrocarbon block and B is a conjugated diene block, by the use of at least one difunctional deactivating coupling agent and at least one polyfunctional deactivating coupling agent in a molar ratio such that the linear polymer obtained by coupling represents 65 to 95% by weight of the total polymer material obtained by coupling.

Abstract: A uniform mixture of a polytetrafluoroethylene molding powder and an organic filler, which can provide moldings having improved properties without lowering the appearance and mechanical property, is obtained without sticking the filler to the wall of a mixer by mixing the molding powder and the filler in the presence of a silane coupling agent and a polar solvent, or by previously treating the organic filler with the silane coupling agent and mixing the treated filler with the molding powder.

Abstract: Gel coating of thermoplastic particles, such as polyimide particles, with a polyketone or polyvinyl alcohol gel, and applying the gel coated particles to reinforcement, e.g. carbon, fibers to form a pre-preg. Such gel coated thermoplastic particles can be mixed with a thermosetting resin to form a pre-preg, which can be cured at elevated temperatures to form a composite having damage tolerance characteristics. The gel coating is applied to the thermoplastic particles by contacting such particles with a polymerizable material such as acetone in a weakly acidic solution to cause the acetone to undergo tautomerism, and in the presence of a polymerization promoter or catalyst, preferably certain anionic surfactants such as sulfated ammonium salts, to convert the tautomer to polyacetone gel of low molecular weight, which coats or encapsulates the thermoplastic particles.

Abstract: A fine-grained polyether-ketone powder, having a particle size with a d.sub.50 value smaller than or equal to 40 .mu.m and a grain size distribution range smaller than or equal to 55 .mu.m, is obtained by cold-grinding of coarse-grained polyether-ketone in a fluid-bed opposed-jets mill, which is provided with a grinding chamber (2) subjected to gas jets, a grinding material-charging device, a screening device (5) for separating coarse material (11) and fine material (10), and a bottom (3) underneath the grinding chamber for added material to be ground and coarse material flowing back from the screening device, the material to be ground and the coarse material flowing back from the screening device being cooled by means of a cryogenic refrigerant.The powders obtained in this way are used for producing surface coatings or composites.

Abstract: An aromatic polyamide resin composition useful for producing compression-molded resin articles having an excellent impact strength, comprising 3 to 40% by weight of PEEK resin fibers, the balance consisting of an aromatic polyamide resin particles, and optionally, 10% by weight or less of PTFE resin particles, which effectively enhance the abrasion resistance of the compression-molded resin article.

Abstract: A process for preparing a styrene resin composition which comprises subjecting to bulk or bulk-suspension polymerization a solution obtained by dissolving (A) a modified styrene polymer obtained by introducing directly or through another atomic group at least one functional group represented by the general formula>C.dbd.N.sup.+ <into the polymer chain of a styrene polymer obtained by polymerizing 90 to 100% by weight of a styrene monomer with 0 to 10% by weight if a monomer copolymerizable with the styrene monomer, if desired together with (B) a rubber-like polymer in (C) a styrene monomer.

Abstract: A rubber composition comprising, as rubber components, 10-40 % by weight of (1) a styrene-butadiene copolymer rubber obtained by solution polymerization, having a styrene content of less than 20% by weight and a trans-1,4 bond content in butadiene portion, of more than 90% by weight and 60-90% by weight of (2) a diene rubber other than the styrene-butadiene copolymer rubber (1), having a glass transition temperature of -60.degree. C. or below.

Abstract: Improved compositions comprise polymer blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with polyvinyl phenol and polyacetal.

Abstract: For the preparation of hydrophilic polymer resins with functional groups on ligands, one reacts a resin which consists of units of formula I, in which R.sub.1 is hydrogen or an aliphatic residue, with a ligand in the presence of a coupling agent. The reaction is conducted in the presence of a competitive agent which is capable of reacting with the coupling agent at approximately the same rate as the amido group, to achieve a statistical limitation of the reaction of the coupling agent with the polymer. The competitive agent must not react with the resin.The resin is used for the recovery of metal ions from effluents or natural or industrial residual waters.

Abstract: A shape memory polymer resin, consisting essentially of a block copolymer having an A-B-A block structure in the polymer chain, and having a weight average molecular weight within the range of 10,000 to 1,000,000, wherein(a) block A is a polymer block comprising a homopolymer or a copolymer of a vinyl aromatic compound and/or a hydrogenated product thereof;(b) block B is a polymer block comprising a homopolymer or a copolymer of butadiene and/or a hydrogenated product thereof, the content of butadiene and/or the hydrogenated product thereof in block B being at least 80% by weight, and 80 to 91% of the linkages of the butadiene and/or the hydrogenated product thereof being 1,4-linkages;(c) at least 80% by weight of the conjugated diene in the block copolymer being hydrogenated; and(d) the block copolymer comprises 5 to 50% by weight of said block A; and a shape memory resin composition and a shape memorizing molded product thereof.

Abstract: Mixtures containing aromatic polyether ketones based on diphenols corresponding to formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1-8 alkyl, C.sub.5-6 cycloalkyl, C.sub.6-10 aryl and C.sub.7-12 aralkyl,m is an integer of from 4 to 7,R.sup.3 and R.sup.4 may be individually selected for each X and independently of one another represent hydrogen or C.sub.1-5 alkyl andX represents carbon, with the proviso that, at at least one atom X, R.sup.3 and R.sup.4 are both alkyl,and other organic polymers and films of these polymer mixtures.

Abstract: Disclosed herein is a melt-stable poly(arylene thioether-ketone) prepreg, which comprises in integral combination (A) 20-90 wt. % of a fibrous reinforcing material which comprises long fibers and/or at least one shaped long fiber body, said fibers and/or body being formed of inorganic fibers and/or organic fibers; and (B) 10-80 wt. % of a a thermoplastic matrix material composed principally of a melt-stable poly(arylene thioether-ketone) having predominant recurring units of the formula ##STR1## and having a melting point, Tm of 310.degree.-380.degree. C., a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C/10 min) of at least 10 J/g, a melt crystallization temperature, Tmc (420.degree.C./10 min) of at least 210.degree. C. and a reduced viscosity of 0.2-2 dl/g. A melt-stable molded or formed product can also be obtained by shaping the above prepreg or an arrangement or laminate of prepregs of the same type as the above prepreg at 140.degree.-450.degree. C. under stresses.

Abstract: Vinyl halide polymer compositions exhibiting reduced gas permeability are described which comprise a mixture of(a) at least one vinyl halide polymer; and(B) from about 1 to about 40 parts by weight per 100 parts of vinyl halide polymer (A) of at least one olefinic nitrile polymer.The vinyl halide polymers preferably are vinyl chloride homopolymers and copolymers, and the olefinic nitrile polymers are copolymers of an olefinically unsaturated nitrile such as acrylonitrile and one or more monomers from the group of conjugated dienes, monoolefins, olefinically unsaturated carboxylic acid esters, and vinyl aromatic compounds. The olefinic nitrile polymer can be chosen or manufactured to have a refractive index which is similar to the refractive index of the vinyl halide polymer thereby resulting in a more transparent composition.

Abstract: Novel thermoplastic compositions are provided comprising a blend of a polyindane resin and an engineering thermoplastic such as polyphenylene ethers, polysulfones, polycarbonates, polyether ether ketones, polyarylates, polyamides, polyimides and polyphenylene sulfides. Blends of thermoplastic block copolymers with polyindane resins are also provided. These blends provide improved processability with good physical properties including high impact strength and high heat distortion temperature.

Abstract: Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,4-cyclohexanedimethanol and 1,4-butanediol. The copolyesters exhibit unusually high tensile strengths.

Abstract: Disclosed are copolyesters comprising an acid component of 4,4'-biphenyldicarboxylic acid and a glycol component comprising 1,4-cyclohexanedimethanol and 1,6-hexanediol. The copolyesters exhibit unusually high tensile strengths.

Abstract: An extrudable composition comprising hydrocarbon polymer, organophosphite or organophosphate compound and fluorocarbon polymer. The organophosphite or organophosphate and the fluorocarbon polymer are present in the composition in such relative proportions and concentrations as to reduce the occurrence of melt defects during the extrusion of said thermoplastic hydrocarbon polymer.

Abstract: Blends comprising(A.) at least one poly(aryl) ether ketone), and(B.) at least one polyimide having repeating units of the formula ##STR1## wherein R.sup.1 is a substituted or unsubstituted tetravalent radical having benzenoid unsaturation, andR.sup.2 is a substituted or unsubstituted divalent group having aromatic unsaturation which is essentially free of (i) backbone ether oxygen bonded directly to the aromatic ring forming an imide linkage and (ii) amide linkages bonded through carboxyl groups bonded to the aromatic ring forming an imide linkage. The blends exhibit good melt processability and wear resistance greater than the individual blend components.

Abstract: Dispersion-process-produced, non-melt-processible, particulate, core-shell, tetrafluoroethylene copolymer comprising recurring units of tetrafluoroethylene and modifying recurring units of at least one ethylenically unsaturated comonomer that is copolymerizable with the tetrafluoroethylene, the number of recurring units of comonomer in the shell being sufficient to enable the copolymer to compound uniformly with an elastomer or plastic without forming visible agglomerates, and blends thereof with elastomeric and plastic resins.

Abstract: Thermoplastic molding materials contain, as essential components,(A) from 2 to 97.9% by weight of a nylon,(B) from 2 to 97.9% by weight of a polyaryl ether ketone and(C) from 0.1 to 30% by weight of a polymeric component containing hydroxyl groupsand in addition(D) from 0 to 50% by weight of an impact-modifying rubber and(E) from 0 to 60% by weight of fibrous and/or particulate fillers.

Abstract: A blend of tetrafluoroethylene and a poly(oxy-p-phenyleneisophthaloyl-phenylene/oxy-p-phenyleneterephthaloyl- p-phenylene) (PEKK) results in improved processing of the fluoroelastomer at temperatures below the melting temperature of the PEKK and improves physical properties of cured fluoroelastomer.

Abstract: Disclosed herein is a melt-stable poly(arylene thioether-ketone) composition, which comprises:(A) 100 parts by weight of a melt-stable poly(arylene thioether-ketone) having predominant recurring units of the formula ##STR1## and having a melting point, Tm of 310.degree.-380.degree. C., a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) of at least 10 J/g, a melt crystallization temperature, Tmc (420.degree. C./10 min) of at least 210.degree. C. and a reduced viscosity of 0.2-2 dl/g;(B) 0-400 parts by weight of at least one of thermoplastic resins; and(C) at least one of fibrous fillers and/or at least one of inorganic fillers in a proportion of 0-400 parts by weight per 100 parts by weight of the sum of said components (A) and (B).At least either one of the components (B) or (C) is contained in a proportion of at least 0.1 part by weight per 100 parts by weight of the component (A).

Abstract: Disclosed herein are poly(arylene thioetherketone) fibers obtained by melt-spinning a thermoplastic material which comprises 100 parts by weight of a melt-stable poly(arylene thioether-ketone) (PTK) and optionally, up to 50 parts by weight of at least one of thermoplastic resins. The PTK has predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other, and has a melting point, Tm of 310-380.degree. C., a residual melt crystallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) of at least 10 J/g, a melt crystallization temperature, Tmc (420.degree. C./10 min) of at least 210.degree. C., and a reduced viscosity of 0.3-2 dl/g as determined by viscosity measurement at 25.degree. C. and a polymer concentration of 0.5 g/dl in 98 percent by weight sulfuric acid. The PTK fibers of this invention have high heat resistance and strength.

Abstract: Disclosed herein is a molded or formed poly(arylene thioether-ketone) article made of a thermoplastic material which comprises 100 parts by weight of a melt-stable poly(arylene thioether-ketone) (PTK) and if desired, up to 100 parts by weight of at least one of thermoplastic resins and/or up to 300 parts by weight of at least one of fibrous fillers and/or least one of inorganic fillers. The PTK has predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other, and has a melting point, Tm of 310.degree.-380.degree. C., a residual melt cyrstallization enthalpy, .DELTA.Hmc (420.degree. C./10 min) of at least 10 J/g, a melt crystallization temperature, Tmc (420.degree. C./10 min) of at least 210.degree. C., and a reduced viscosity of 0.2-2 dl/g as determined by viscosity measurement at 25.degree. C. and a polymer concentration of 0.5 g/dl in 98 percent by weight sulfuric acid.

Abstract: A polymer blend of 2-80 wt % of an acrylic or methacrylic ester base polymer and the balance of a ternary copolymer of vinylidene fluoride (VDF), hexafluoroacetone (HFA) and tetrafluoroethylene (TFE) is very high in transparency and serves as a thermoplastic resin useful for optical purposes. The first polymer of the blend can be selected from homopolymers and copolymers of C.sub.1 -C.sub.4 alkyl acrylates and methacrylates. The second polymer is preferably made up of 2-15 mol % of HFA, 5-60 mol % of TFE and the balance of VDF. The polymer blend has a relatively low index of refraction, which can be controlled by selecting the first and second polymers and/or by varying the blending ratio. The polymer blend is soluble in various organic solvents. Besides, the polymer blend serves as a thermochromic material that becomes opaque by heating and resumes transparency by cooling.

Abstract: An aqueous printing ink or its semiaqueous or substantially nonaqueous concentrates exemplified as comprising a substantially homogeneous system of the components:(1) from about 4 to about 90 weight % of one or more polyester materials having an acid component of from about 75 to about 84 mole % isophthalic acid and conversely from about 25 to about 16 mole % 5-sodiosulfoisophthalic acid, and having a glycol component of from about 45 to about 60 mole % diethylene glycol and conversely from about 55 to about 40 mole % 1,4-cyclohexanedimethanol or ethylene glycol or mixtures thereof;(2) from none to about 70 weight % of pigment material;(3) from about 0.01 to about 90 weight % of water; and(4) one or more acetylacetonates of the formula M[CH--(COCH.sub.3).sub.2 ].sub.n wherein M is Al, Zr, Ni, Ca, V, or Fe, and n is the chemical valence of M, the weight ratio of polyester to total acetylacetonates being from about 10,000/1 to about 10/1.

Abstract: Unsaturated hydrocarbon polymers are hydrogenated in the presence of a catalyst obtained by combining a Group VIII-A metal alkoxide or carboxylate and an alkyl or hydride of a metal selected from Groups I-A, II-A and III-B and then functionalized by contacting the hydrogenated polymer with a functionalizing agent before the hydrogenation catalyst is quenched or otherwise deactivated. The hydrogenation is, generally, accomplished at relatively mild conditions to avoid degradation of the polymer and, in the case of unsaturated copolymers comprising aromatic unsaturation, to avoid any significant hydrogenation of the aromatic unsaturation. Generally, the hydrogen partial pressure employed will be below about 1000 psig and the hydrogenation temperature will be below about 125.degree. C.

Abstract: Self-cyclisable polymer such as polyacrylonitrile formed within aromatic polymer matrix is heat treated to improve the glass transition temperature and flow characteristics of the aromatic polymer. Polyaryletherketones are preferred as the matrix.

Abstract: Hybrid star polymers with functional acrylic arms and crosslinked cores.

Abstract: The present invention relates to a rubber-like polybutadiene or a rubber-like butadiene-styrene copolymer suited for use in tire treads which are obtained by polymerization of the monomer(s) in the presence of an organolithium catalyst, followed by reacting a carbodiimide with the reactant product thereof so as to subject it to reaction at its living point, and if necessary, further reacting the product thus obtained with a trifunctional or higher-order coupling agent. The invention further relates to a process for the production thereof, and a rubber composition containing more than a definite amount of said polymer.

Abstract: A shaped article comprised of a tetrafluoroethylene polymer with a number average molecular weight of at least about 10.sup.6 which exhibits specific heat shrinking properties represented by an average maximum expansion ratio of from 2 to 10, a least maximum shrinkage ratio of 0.71 or less, an orientation release stress at 200.degree. C. of less than 5 Kg/cm.sup.2 and a shrinking starting temperature of at least 80.degree. C. The shaped article has excellent compression creep resistance, compression resistance, impact strength, dimensional stability, gas barrier property and tensile strength. Accordingly, it can be advantageously utilized as a sealant, a lining material, a bearing pad, a sliding pad, etc.

Abstract: Blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) a thermoplastic copolyester thermoplastic polymer having either linkages in one recurring unit of the polymeric chain, exhibit high surface gloss and improved processability without deterioration in impact strength.

Abstract: Non-miscible blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with (b) a polyvinylidine fluoride polymer of predominantly vinylidine fluoride exhibit improved appearance, melt stability, and impact resistance.

Abstract: Blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a poly(.alpha.-olefin) exhibit improved processability.

Abstract: Polymer blends having a major proportion of a linear alternating copolymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor proportion of a copolymer of a vinyl aromatic compound and an alpha,beta-unsaturated cyclic anhydride are provided which demonstrated improved processability and melt stability.

Abstract: A molecularly miscible blend of a linear alternating polymer of carbon monoxide and an ethylenically unsaturated hydrocarbon and a polyvinyl phenol.

Abstract: The present invention relates to an impact resistant polymeric composition comprising a polyester and a thermally stable modified selectively hydrogenated high 1,2 content block copolymer wherein at least one graftable functional molecule is grafted to the block copolymer in the vinylarene block.

Abstract: A Mannich base of a high molecular weight acrylamide polymer can be made by reacting, in aqueous solution, the polymer with a Mannich base of a low molecular weight compound such as urea. A composition of the polymer and the Mannich base is preferably substantially non-aqueous.

Abstract: The invention relates to novel compositions comprising an admixture of (a) a semi-crystalline, thermoplastic poly(arylene ether ketone) having a crystalline melting point above about 320.degree. C. and (b) a substantially non-crystalline fluorocarbon polymer capable of withstanding temperature above about 320.degree. C. for at least about 5 minutes without substantial degradation, said fluorocarbon polymer comprising a copolymer of tetrafluoroethylene wherein the tetrafluoroethylene content of the copolymer is about 5 to about 85% by weight based on the weight of the copolymer, said composition being capable of being melt processed at a temperature above the crystalline melting point of the poly(arylene ether ketone). The compositions exhibit high temperature processability, resistance to solvents, and improved dielectric properties. The compositions can be further used as substrate coatings or formed into articles.

Abstract: The invention is an optical fiber having a core formed of either an inorganic glass or an organic polymer such as polymethyl methacrylate and a cladding layer formed of a ternary copolymer of vinylidene fluoride, hexafluoroacetone and either trifluoroethylene or tetrafluoroethylene. This cladding material is superior particularly in transparency and flexibility.

Abstract: A seal and seal assembly for use with well tools, such particularly as well packers, for sealing the annulus between the well packer mandrel and the wall of a well tubing such as casing. The seal is fabricated of an elastomeric-like material comprising fluorocarbon resins, poly arylene ketone, and carbon fibers mounted between end retainer assemblies each comprising a mesh anti-extrusion ring, a tapered mesh backup ring, and a metal backup shoe. The seal has internal longitudinally spaced V-shaped recesses to cause the seal to buckle radially outwardly as it is compressed longitudinally to increase the stress along the middle portion of the seal where the seal meets the well casing inner wall. The seal is useful at high temperatures and pressures such as 550 degrees F. and greater than 15,000 psi.

Abstract: Poly(alloocimene) is functionalized by reaction with an electrophile to obtain polymers useful as a film-former in a coating composition.

Abstract: UV stabilized polyphenylene ether polymers and blends thereof are provided by this invention. This is accomplished by bonding UV absorbers directly to the polyphenylene ether chain or by polymerizing monomers to which the UV absorbers are bound.

Abstract: A process for the preparation of a stable aqeuous ketone resin or ketone/aldehyde resin dispersions and a process for the production of surface coating binders. For this purpose, a melt or a highly concentrated solution of the ketone resin or ketone/aldehyde resin is dispersed in water in the presence of an organic protective colloid. These aqueous resin dispersions can be used, in combination with other film formers, as surface coating binders.

Abstract: A blend polymer composition, which is superior to polyvinylidene fluoride (PVDF) in impact resistance and retains favorable properties of PVDF, is obtained by blending 1-100 parts, and preferably 1-50 parts, by weight of a copolymer of vinylidene fluoride (VDF) and hexafluoroacetone (HFA) with 100 parts by weight of PVDF. Preferably the mole ratio of copolymerized VDF to HFA is from 96:4 to 50:50.

Abstract: A thermoplastic resin composition useful for optical purposes is obtained by blending a polymer of an acrylic ester with a copolymer of vinylidene fluoride (VDF) and hexafluoroacetone (HFA). The blending ratio is not limited, though very good transparency is ensured when the acrylic ester polymer amounts to at least 20 wt %. It is preferable to use a polymer of an acrylic ester with an alkyl alcohol having not more than 4 carbon atoms. When using the resin composition in optical fibers or cylindrical lenses it is suitable to use a VDF/HFA copolymer containing not more than 20 mol % of HFA. The refractive index of a member formed of the resin composition is lower than that of the acrylic ester polymer and falls in the range of about 1.37-1.48. The resin composition is soluble in various organic solvents and accordingly can be used for adhesing and coating purposes too. Besides, this resin composition serves as a thermochromic material.