Abstract: Blends of a perfluoroelastomer with a nitrile containing polyperfluoroether are described. The addition of the polyperfluoroether often improves the properties, processability and/or low temperature properties of the perfluoroelastomer. It is preferred if the perfluoroelastomer contains nitrile groups so that the two polymers can cocure, thereby retarding separation of the polyperfluoroether from the perfluoroelastomer.

Abstract: Hydrocarbon polymers with grafts of polyethers, polylactones, or polyesters from the reaction of phosgene with glycols having from 1 to 4 carbon atoms are disclosed as having good release properties or low adhesion to hydrocarbon rubber materials. The hydrocarbon backbone polymers include EPDM, hydrogenated polybutadiene, and hydrogenated poly(styrene-butadiene) all said polymers having pendant succinic anhydride groups or brominated p-methylstyrene-isobutylene copolymers. The above-referenced graft copolymers along with butadiene-acrylonitrile rubber or epichlorohydrin polymers or copolymers are described as useful polymers to make self-release curing bladders or sleeves for use in making molded articles such as pneumatic tires.

Abstract: New electrically conductive polymer compositions comprisei) an electrically conductive polymer a) of one or more oxidatively polymerizable aromatic compounds andii) a polymer d) having ammonium, phosphonium or sulfonium groups in the polymer chain(s).The polymer compositions comprising polymers a) and d) are prepared by oxidative polymerization of one or more aromatic compounds in the presence of a polymer b) having ammonium, phosphonium or sulfonium groups in the polymer chain(s) and containing a polydentate anionic complex which has a redox potential sufficient for enabling oxidative polymerization of the aromatic compounds. Said polymer b) which has a non-metallic anionic complex such as S.sub.2 O.sub.8.sup.2- is also novel.

Abstract: Coating compositions which comprise:(i) an acid-functional compound having an average of at least two carboxylic acid groups per molecule; and(ii) an anhydride-functional compound having an average of at least two cyclic carboxylic acid anhydride groups per molecule; and(iii) an epoxy-functional compound having an average of at least one epoxy group per molecule; wherein at least one of the compounds (i), (ii), or (iii) comprises a film forming polymer.

Abstract: A composite is formed wherein particles of a conductive polymer are uniformly distributed within a processable non-conductive polymer. In the method of the invention, an inverted emulsion is formed by dispersing an aqueous solution of oxidant in an organic solvent comprising a host polymer and an oil-soluble surfactant. A monomer whose polymerization yields a conductive polymer which is dissolved in a solvent miscible with the organic solvent of the emulsion is then added dropwise to the emulsion with agitation. The composite is separated from the emulsion and the precipitate is washed and dried.

Abstract: An insoluble material for adsorbing a pyrogen comprising a polymer of an aziridine compound. According to the present invention, a large amount of the pyrogen can be easily removed from a solution containing pyrogen, and a large amount of the material for adsorbing the pyrogen can be prepared in easy steps. Therefore, the adsorbing material can greatly contribute to the preparation of medicines.

Abstract: Rigid-rod macromonomers, and methods for preparing such macromonomers, having a polyaromatic backbone, solubilizing side groups, and reactive side groups are provided. The macromonomers are chemically incorporated into polymer systems to provide stronger, stiflened polymers.

Abstract: Resin compositions, comprising (A) a styrene/acrylic polymer and (B) a polyester dispersed therein with an average particle size of not more than 3 .mu., are obtained by quenching a mixture of (A) and (B) melted at 150.degree.-200.degree. C., below the glass transition temperature of the polymer (A) within 5 minutes, and are of good thermal shelf stability and electrical properties and provide toner binders of high hot offset causing temperature and improved low temperature fixing properties.

Abstract: Microfibrils are formed which include conductive conjugated polymer. These microfibrils are incorporated into polymer admixtures which are thermo-formed into conductive shaped articles.

Abstract: In a process for the preparation of polyisocyanates containing uretdione groups by catalytic dimerization of monomeric isocyanates, the catalysts employed are polymers carrying imidazole groups.

Abstract: A curable resin composition utilizing as the crosslinking mechanism thereof an acid catalyzed addition reaction of a cyclic alkylenecarbonate group with an alcoholic hydroxyl group is disclosed. The composition contains a compound or polymer having a plurality of 6-membered cyclic alkylenecarbonate groups and a polymer having a plurality of alcoholic hydroxyl groups. A polymer having pluralities of the cyclic alkylenecarbonate and hydroxyl groups in a single entity may also be used. The composition cures at room or elevated temperatures depending upon the acidity and amount of particular acid catalyst incorporated to the composition.

Abstract: Compositions are disclosed that are the urea derivatives of succinylated polyolefins (maleated polyolefins). The urea derivatives of succinylated polyolefins are of the formula; ##STR1## wherein R is a polyolefin attached at any point along the hydrocarbon chain. The urea derivative of succinylated polyolefins is useful as a coupling agent to couple polyolefins with dissimilar polymers having an excess of unreacted acid groups such as polyesters.

Abstract: Novel polymers for rendering a nonconductive material conductive are disclosed. The polymers may be block copolymers comprised of a first block of polyoxazine or polyoxazoline and a second block comprising a thioether linkage-containing polyalkylene glycol or ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, X and P are as defined herein or an oxazoline polymer with pendant chains consisting of polyethylene oxide and polythioether. Composites of a nonconductive materials and the novel antielectrostatic polymers, uses of these composite materials, as well as methods for rendering nonconductive materials conductive by incorporating therein an antielectrostatic polymer are also disclosed.

Abstract: The invention relates to a process for preparing a polymer in which in situ polymerization of monomers takes place in the presence of a catalyst, in which the monomers are obtained by in situ activation of precursor monomers.According to the invention a premature polymerization is avoided, but polymerization only starts at the desired moment.

Abstract: Microfibrils are formed which include conductive conjugated polymer. These microfibrils are incorporated into polymer admixtures which are thermo-formed into conductive shaped articles.

Abstract: The present invention relates to a process for preparing a partially crosslinked binder resin useful for electrophotographic toner, which comprises:(1) preparing a partially crosslinked polymer by way of: a non-crosslinking emulsion polymerization of an aromatic vinyl monomer, an acrylic monomer and a cyanide compound in a linear structure, and a cross-linking polymerization of an aromatic vinyl monomer, an acrylic monomer, a cyanide compound and an unsaturated carboxylic acid or an unsaturated monomer containing an epoxy group; and(2) coagulating the polymer latex obtained in step(1) in the presence of a water soluble amine.

Abstract: There is provided a plastisol for use in a electrically conductive molded article comprising non-conductive high polymer particles having surfaces coated with an electrically conductive high polymer or non-conductive high polymer particles having surfaces coated with filler of electrically conductive fine particles, and a plastisizer compatible with the said non-conductive high polymer. The plastisol is excellent in fluidity and good in processability. Said plastisol can provide a molded article having excellent electrical conductivity and is suited for, e.g., production of floor materials or sealing materials having low static properties and formation of an electrically conductive path.

Abstract: Rubber compositions for use in pneumatic tire treads. Specified amounts of NR and/or IR and SBR are combined with a selected class of rubber components of the formula ##STR1## SBR contains in its molecular chains one or more atomic groups of the formula ##STR2## Rebound resilience, skid resistance and fuel saving are greatly improved.

Abstract: The present invention relates to a process for producing water absorbent resin comprising a step of adding a high-molecular crosslinking agent which has at least 2 azetidinium salt groups in the molecule and has at least 1000 weight-average molecular weight to the water absorbent resin paticles having carboxylic groups and carboxylic acid salt groups and a step of efficiently crosslinking the vicinity of the surface of the water absorbent resin particles. In the process for producing water absorbent resin according to the present invention, the use of high-molecular crosslinking agent achieves less permeation of the crosslinking agent into the water absorbent resin particles and enables efficient crosslinking of the vicinity of the surface of the water absorbent resin particles. Consequently, the water absorbent resin having high water absorbency both under pressure-free state and under loading can be manufactured.

Abstract: An internally plasticized vinyl chloride polymer with a polycaprolactone content ranging from 32 to 40% is prepared by polymerizing vinyl chloride in the presence of polycaprolactone. The graft copolymers show good transparency, homogeneity, and processing properties.The copolymers of the present invention can be used to produce materials used in medical applications, such as, blood bags and dialysis tubing.

Abstract: A pressure sensitive adhesive composition is described which is water-dispersible under acidic conditions. The composition comprises a terpolymer of a hydrophobic monomeric acrylic or methacrylic ester of a non-tertiary alcohol (monomer A); a polar monomer copolymerizable with said A monomer and having carboxylic, sulfonic acid or hydroxyl functionality or combinations thereof (monomer B); and a water soluble or water-dispersible macromolecular monomer of the formula X--Y--Z which is copolymerizable with A and B wherein X is a copolymerizable moiety containing a double bond, Y is a divalent linking group and Z is a water-dispersible polymeric moiety (monomer C). The combined acid groups employed in the B monomer are neutralized from 5 to 100% based on the total amount of acid groups in B. The composition further comprises tackifier and/or plasticizers at a level such that the ratio of terpolymer to additives falls within a range of from 0.2:1 to 5:1.

Abstract: Electrically conductive polymers, especially polypyrroles, are formed with a charged polymeric dopant supplying the necessary counter-ions to stabilise the charged conductive form of the conductive polymer. The physical properties of the conductive polymer can thus be usefully modified in ways different from those achieved by non-polymeric dopants or by forming the conductive polymers in pre-existing bodies of non dopant (i.e. uncharged) polymers.

Abstract: The present invention is directed to a pigment dispersant for use in coating compositions. The dispersant is the reaction product of a functionalized copolymer, a polyalkylene glycol monoalkyl compound to impart water soluble character to the copolymer, and a compound having a pigment interactive substituent including hydrazine derivatives and oxime containing compounds.

Abstract: A thermosetting coating composition contains (a) an acrylic resin having hydroxyl groups and epoxy groups in a molecule thereof; (b) a resin prepared from a monomer having an unsaturated group and an acid anhydride group the acid anhydride group being half-esterified, half-thioesterified and/or half-amidized; (c) at least one of hydroxyl group-containing resin selected from the group consisting of an acrylic resin containing hydroxyl groups and carboxyl groups, a fluorine-containing copolymer resin and a polyester resin; and (d) a melamine resin.

Abstract: A coating composition is described comprising two components that are reactable with each other to cure the coating. The two components are:(a) a carboxyl-functional polyurethane component that is the reaction product of:(i) a polyisocyanate compound, and(ii) a compound comprising at least one acid group and at least one isocyanate-reactive group,(b) a component comprising at least two groups that are reactive with the epoxy groups on the polyurethane compound.

Abstract: A package comprised of at least one compounding ingredient for unvulcanized rubber contained in a protective film of a thermoplastic polycaprolactone. The invention further relates to a compounded rubber comprised of a mixture of unsaturated rubber and a package of compounding ingredients contained in the polycaprolactone film. For such purposes, the polycaprolactone film can be in the form of a bag thereof.

Abstract: Stabilizers for organic polymers, consisting of one or more compounds of the classis of the sterically hindered amines (HALS) are directly added to the reaction mixture during the (co)polymerization of the .alpha.-olefins or of their mixtures with other unsaturated monomers.The so-obtained polymeric compositions result perfectly stabilized and show a thermo- and photo-oxidative resistance higher than that of the same polymeric compositions to which the same stabilizers are added by a traditional route.

Abstract: A second order nonlinear optically-active azo monomer comprising a benzimidazole moiety. The monomers can be incorporated into both linear and crosslinked polymers useful in electrooptical devices.

Abstract: The invention relates to the production of a graft copolymer of polycaprolactone and of polyethylene containing functional groups. The copolymer shows good strength properties compared to linear low density polyethylene.

Abstract: A coating composition which is capable of curing at ambient temperature to form a coating comprises (A) an anhydride-functional polymer containing at least two cyclic carboxylic acid anhydride groups per molecule and (B) an amine-functional polymer and is characterized in that the amine-functional polymer (B) contains at least two secondary amine groups per molecule, the polymer (B) being substantially free from hydroxy and ether oxygen atoms and amine nitrogen atoms in the alpha and beta positions with respect to the amine nitrogen atoms, and the carbon atoms directly bonded to the amine nitrogen atoms not being tertiary carbon atoms.

Abstract: Thermoplastic elastomer compositions comprise a blend of polyester resin and a covalently-crosslinked acrylate rubber. Such compositions can be prepared by dynamic vulcanization of the rubber in admixture with the polyester and can exhibit high temperature dimensional stability and low oil swell.

Abstract: The invention relates to dispersions of polythiophenes made up of structural units corresponding to the following formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another represent hydrogen or a C.sub.1-4 alkyl group or, together, form an optionally substituted C.sub.1-4 alkylene group,in the presence of polyanions, to the production of these dispersions and to their use for the antistatic treatment of plastic mouldings.

Abstract: A composition including a thermoplastic saturated norbornene group polymer and a partially etherified product of a polyhydric alcohol having at least 3 hydroxyl groups incorporated thereinto. The composition exhibits excellent adhesion to the recording film of an optical disk and adhesion to a hard coating film or a protective film formed by coating an acrylic ultraviolet curing coating material or like films without deteriorating the excellent heat resistance and transparency inherent to thermoplastic saturated norbornene group polymers. An optical disk substrate formed of this composition and an optical disk including the optical disk substrate and an information recording film and/or a light reflecting film and a protective film laminated thereon are also disclaimed.

Abstract: Polymer films are formed by electrocodeposition of solutions containing a dispersion of charged particles of a first polymer and charged particles of a second polymer. Microheterogeneous films are obtained having micro-domains of a minor component polymer dispersed in the major component polymer. Processes for preparing dispersions for electrocodeposition are also provided In a first process, two polymers are dissolved in a common solvent and then dispersed as small charged particles in another solvent which is a precipitant for both polymers. In another process, a dispersion of a first polymer is prepared by adding a solution of the first polymer to a dispersant solvent, and then a solution of a second polymer is dispersed in the dispersion of the first polymer. In another process, a solution of the second polymer is added to a dispersion of the first polymer which contains only a single non-solvent for the second polymer.

Abstract: Provided are polymers containing methine linkages. Also provided are shaped or formed articles comprised of the light absorbing polymers either alone or admixed with other thermoplastic polymers to form a light absorbing thermoplastic polymer composition.

Abstract: An environmentally degradable composition comprises blends of a physical mixture of a poly(lactic acid), comprising about 1 to 99 weight percent of the composition, and an elastomeric blend compatible polymer, such as a segmented polyester, that provides improved impact resistance to the poly(lactic acid) and is discrete and intimately bound; plasticizer is added to the blend that is selected from the group consisting of lactide monomer, lactic acid oligomer, lactic acid, and mixtures thereof. Other plasticizer that may be added includes one or more derivatives of an oligomer of lactic acid, its esters and copolymer.

Abstract: Biodisintegrable thermoplastic resin moldings and a process for producing same are disclosed, the biodisintegrable thermoplastic resin moldings being comprised of a thermoplastic aliphatic polyester resin as a matrix resin having dispersed therein an other type of thermoplastic resin in a proportion of 40-75 weight % based on the whole resin. The biodisintegrable thermoplastic resin moldings is easily disintegrable after disposal in an environment where microorganisms exist so that the moldings can be reduced in bulkness and give no harmful effect on the life of natural plants and animals. Thus, the present invention affords an effective means for solving various problems in the treatment of disposed plastic articles.

Abstract: This invention relates to mixtures of short fibers of varying lengths, diameters and aspect ratios composed of an anisotropic polymer, to compositions containing said fibers and one or more thermoplastic or thermoset resins, and to a process for forming said mixtures.

Abstract: A conductive polymeric blend comprises an intrinsically conductive polymer, an insulating thermoplastic material and at least one additive selected from the group consisting of an impact modifier, an ester-free plasticizer and an acidic surfactant. The thermoplastic material comprises a thermoplastic polymer. The conductive polymeric blend has a conductivity of greater than about 10.sup.-9 S/cm. A process for preparing conductive polymeric blends comprises the steps of forming a blend comprising an intrinsically conductive polymer, an insulating thermoplastic material and at least one additive selected from the group consisting of an impact modifier, an ester-free plasticizer and an acidic surfactant. The thermoplastic material comprises a thermoplastic polymer. The conductive polymeric blend has a conductivity of from of greater than yabout 10.sup.-9 S/cm.

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: An environmentally degradable composition comprising blends of a physical mixture of poly(lactic acid), and a polymer selected from the group consisting of poly(ethylene terephthalate), a polymer or copolymer of styrene, ethylene, propylene, vinyl chloride, vinyl acetate, alkyl methacrylate, alkyl acrylate, and physical mixtures thereof; plasticized with D-lactic acid, L-lactic acid, racemic D,L-lactic acid, D-lactide, L-lactide, meso D,L-lactide, racemic, D,L-lactide, oligomers of lactic acid, oligomers of lactide, derivatives of oligomers of lactic acid, or various mixtures thereof.

Abstract: Lubricant systems are provided in which a polyolefin or polyolefin/polytetrafluoroethylene blend functions as a lubricant in a polymer matrix material. The resulting polymer composites containing about 1 to 30 weight percent of the novel lubricant or lubricant blend have greatly improved friction and wear properties, including lower coefficients of friction and increased surface wear resistence. The polyolefin does not remain as discrete, identifiable particles after mixing with the polymer matrix, and has an average molecular weight of less than 500,000.

Abstract: Novel block polymers which are thermoplastic elastomers which are thermoplastic elastomers are provided for use as binders in high-energy compositions such as propellants, explosives, gasifiers or the like. The block polymers have an ABA structure wherein the A blocks are crystalline at temperatures below 60.degree. C. and the B blocks are amorphous at temperatures above -20.degree. C. Both the A and B blocks are polyethers formed from monomers of oxetanes and/or tetrahydrofuran. The block polymers melt in the range of 60.degree. C. to 120.degree. C. and have low viscosities above their melting points due to mutual miscibility of the A and B blocks.

Abstract: A method of imparting hydrophobic or abhesive properties to a substrate. A composition including a compound selected from the group consisting of(a) a compound of the formulaR.sub.1 R.sub.2 C.dbd.CR.sub.3 R.sub.4and an oligomer of polymer thereof;(b) a compound of the formula--(CR.sub.1 R.sub.2 --CR.sub.3 R.sub.4).sub.n --(c) a compound of the formula ##STR1## and an oligomer or polymer thereof wherein R.sub.1, R.sub.2 and R.sub.3 are independently CH.sub.3 or C.sub.2 H.sub.5 ; R.sub.4 is H, CH.sub.3 or C.sub.2 H.sub.5 ; A and B are independently H, CH.sub.3, C.sub.2 H.sub.5 or --(CR.sub.1 R.sub.2 --CR.sub.3 R.sub.4).sub.n --; and n is an integer between 1 and 20,000,000 is applied to the surface of the substrate. When the composition cures, the substrate possesses superior water-proof and release properties.

Abstract: The present invention relates to a stabiliser composition for polypropylene, comprising:A) one or more triazine compounds containing groups of the formula (I) in which R is hydrogen, C.sub.1 -C.sub.4 alkyl, O.cndot., OH, C.sub.1 -C.sub.8 alkoxy, C.sub.5 -C.sub.8 cycloalkoxy, C.sub.3 -C.sub.6 alkenyl, C.sub.7 -C.sub.9 phenylalkyl or C.sub.1 -C.sub.8 acyl, andB) one or more oxides and hydroxides of Mg, Ca, Ba, Zn, Al and Sn, preferably Mg and Zn.

Abstract: Toughenable polymer compositions cross-linkable thermally or by the effect of U.V. radiation are composed of:1) A polyphenylene ether (PPE) deriving from the (co)polymerization of one or more substituted phenols by oxidative coupling;2) At least one mono-unsaturated monomer compound able to (co)polymerize in the presence of radical initiators;3) Optionally, at least one polyunsaturated monomer compound able to (co)polymerize in the presence of radical initiators;4) At least one radical polymerization initiator;5) Possibly at least one (co)polymer with elastomeric characteristics;6) Usual additives, stabilizers, accelerators and flame retardant agents.Finished articles essentially composed of an intimately copenetrated polymer blend are obtained by thermal treatment or U.V. radiation of these compositions contained in suitable moulds either along or in combination with other reinforcement materials.

Abstract: A non-woven fabric, the fibers of which are comprised of:(i) polyethylene;(ii) polycaprolactone; and, optionally,(iii) a copolymer of ethylene and carbon monoxide and, optionally, one or more ethylenically unsaturated monomeric organic compounds having 3 or more carbon atoms wherein ethylene is present in major proportion, by weight, and carbon monoxide is present in an amount of about 1.5 to about 7 percent by weight, all based on the weight of the copolymer.

Abstract: Disclosed herein are block and random graft copolymer compositions comprising a base polymer of crystalline polyolefin to which is grafted at least one side or end chain of a hydroxy-ended polylactone, the process for making said graft copolymer compositions, and use thereof in engineering thermoplastic resins.

Abstract: An improved method for the preparation of crosslinked polycarbonates comprises the reaction at elevated temperature of a composition containing cyclic polycarbonate oligomers with at least one polyglycidyl acrylate copolymer formed by the reaction of at least one olefinic compound with a glycidyl acrylate monomer. Further disclosed are network polycarbonates wherein the carbonate chains are linked to each other via polyglycidyl acrylate copolymer groups, and prepreg compositions which comprise a filler and a mixture of cyclic polycarbonate oligomers with a polyglycidyl acrylate copolymer.

Abstract: A composition comprising (a) at least one oxidized polycationic polyheteroaromatic compound and (b) at least one polyanion of a film-forming thermoplastic polymer containing sulfated alcohol groups ##STR1## in repeating structural units. The composition has high electrical conductivity and good mechanical properties, especially after drawing at temperatures below the melt/decomposition temperature. The material may be used as electrodes, electrically conductive filaments or components for electromagnetic screening.