Abstract: A method of making telechelic oligomers comprises reacting a substrate compound selected from the group consisting of relatively high molecular weight polymers with a chain transfer agent in the presence of an alkali metal catalyst. The telechelic oligomers thus produced may then be reacted with monomers according to known polymerization techniques in order to produce block copolymers.

Abstract: A substantially transparent, moldable, thermoplastic multipolymer composition comprising a methyl methacrylate copolymer containing a predominant amount of methyl methacrylate and a minor amount of one or more ethylenically unsaturated monomers; and an effective amount of from about 1% to 35% by weight of the composition, of a polyetheresteramide to enhance the electrostatic charge dissipation of the copolymer. The polyetheresteramide has a refractive index within about 0.005 units of the refractive index of the copolymer. The composition, when subjected to injection molding, is such that the injection-molded composition exhibits a haze of not greater than about 25% and a light transmission of at least about 60%. The composition may include an impact modifier which also has a refractive index within about 0.005 units of the refractive index of the copolymer. The composition may also include a minor amount of a polyethylene glycol having a weight average molecular weight of about 2,000 to about 10,000.

Abstract: The present invention provides a process for preparing a stable dispersion of a preformed polymer in a polyol in a single mixer. A preformed polymer is mixed under sufficient heat and shear to reduce its particle size to a desired size in the presence of a polyol. The present invention also provides stable dispersions of polymers in polyols and polyurethane formulations containing stable dispersions made by the process of the present invention.

Abstract: A method for preparing an intrinsically conductive copolymer comprising preparing an emulsion latex in a medium; forming a mixture which comprises at least one cyclic heteroatom containing monomer, the emulsion latex in the medium and an additive under first condition effective to maintain the emulsion latex in a first stabilized emulsion state, causing the monomer in the mixture to polymerize under second condition effective to produce the conductive copolymer in a second stabilized emulsion state. Additives include cyclodextrins, partially alkylated cyclodextrins, poly(vinyl alcohol), partially hydrolyzed poly(vinyl acetate), poly(vinyl acetate) and mixtures thereof.

Abstract: A solid cyanoacrylate adhesive composition is disclosed which can be applied to a substrate in solid form and which polymerizes into an adhesive polymer upon liquifying. Preferably the solid cyanoacrylate composition liquefies at temperatures slightly above room temperature and polymerizes upon liquification. &xgr;-caprolactones are used as a solidifying polymer with cyanoacrylate monomers and other additives to form the solid cyanoacrylate adhesive composition. The solid cyanoacrylate adhesive composition is easy to apply, especially stable in solid form and is capable of use in a variety of industrial, consumer and medical applications.

Abstract: A wet-stick pressure-sensitive adhesive is provided wherein the pressure-sensitive adhesive comprises: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 10° C.; at least one copolymerized hydrophilic acidic comonomer; and at least one nonreactive copolymer comprising at least two copolymerized alkylene oxides, at least one of which is hydrophobic and at least one of which is hydrophilic.

Abstract: The rheological properties of a crosslinkable resin system are modified by the presence of a side chain crystalline (SCC) polymer (or a similar crystalline polymer which melts over a narrow temperature range). The polymer dissolves in the curable system at temperatures above the melting point of the crystalline polymer (Tp), but when the system is then cooled to a temperature below Tp, at least partially forms a separate phase in the curable system. Below Tp, this separate phase substantially increases the viscosity of the curable system (i.e. makes it thicker than the same system without the crystalline polymer). This is particularly valuable for sheet molding composites (SMCs) in which the increase in viscosity makes the composites less tacky, and for dry film resists (DFRs). Above Tp, the curable system containing the dissolved crystalline polymer has a viscosity which is substantially less than its viscosity below Tp.

Abstract: A substantially transparent, moldable, thermoplastic multipolymer composition comprising a methyl methacrylate copolymer containing a predominant amount of methyl methacrylate and a minor amount of one or more ethylenically unsaturated monomers; and an effective amount of a polyetheresteramide to enhance the electrostatic charge dissipation of the copolymer. The polyetheresteramide has a refractive index within about 0.005 units of the refractive index of the copolymer. The composition, when subjected to injection molding, is such that the injection-molded composition exhibits a haze of not greater than about 25% and a light transmission of at least about 60%. Preferably, the composition includes an impact modifier which also has a refractive index within about 0.005 units of the refractive index of the copolymer. The composition may also include a minor amount of a polyethylene glycol having a weight average molecular weight of about 2,000 to about 10,000.

Abstract: The present invention relates to water-based pressure sensitive adhesives comprising at least one water-based polymer and at least one aminoplast resins such as melamine-formaldehyde resins, urea-formaldehyde resins, alkylated melamine-formaldehyde resins and combinations thereof. More particularly, the invention relates to water-based pressure sensitive adhesives comprising the reaction product of aqueous polymer dispersions and water dispersible melamine-formaldehyde resins. The pressure sensitive adhesives are characterized as having enhanced bonding characteristics including loop tack, peel strength, and shear strength making them particularly useful for the manufacture of dry-bonded laminates, tapes, labels, medical patches and devices, flexible packages, furnace ducts, exterior insulating finish system and the like.

Abstract: A polycarbonate/polyolefin resin composition which has excellent wear property, mechanical strength and flame retardancy and which is adapted for use as a material for OA equipment, home appliance, automobile components, medical apparatus, and the like is provided. The polycarbonate/polyolefin resin composition contains a polycarbonate resin (A), a polyolefin resin (B), a modified polyolefin resin (C), a compound (D) represented by the formula (d): HOOC—R—NH2, a styrene copolymer resin (E), and a brominated polycarbonate oligomer and said diantimony tetraoxide and/or said diantimony pentaoxide (F) in a particular combination. The production process and an article molded from such resin composition are also provided.

Abstract: According to the present invention, a resin composition having flame retardancy, high tracking resistance and excellent mechanical properties can be obtained by compounding aluminum borate whiskers with a thermoplastic resin that has been flame-retarded with a halogen-based flame retardant.

Abstract: A process for polymerizing a vinyl chloride monomer wherein the vinyl chloride monomer is subjected to homopolymerization or (co)polymerization with a monomer copolymerizable with the vinyl chloride monomer in an aqueous solvent, comprising applying in advance a coating liquid containing a cocondensation product obtained by reacting either a phenothiazine derivative and an aldehyde or a phenothiazine derivative, a naphthol derivative and an aldehyde to give an initial condensation product and then reacting the initial product with a polyphenol, to an inner wall of a polymerization tank and parts of an apparatus in contact with the monomers during the polymerization process. The process makes it possible to apply the cocondensation product as an aqueous solution to, e.g., an inner wall of a polymerization tank; to quite effectively prevent polymer adhesion in, e.g.

Abstract: A bioerodible cement system, which, upon mixing of the system parts, forms a cured bioerodible cement, said system comprising a first part comprising a first bioerodible polymer capable of producing acidic products upon hydrolytic degradation; and a second part comprising a second bioerodible scaffolding polymer which upon crosslinking provides a biopolymeric scaffolding or internal reinforcement for said cured cement is disclosed. In a preferred embodiment, the second bioerodible polymer comprises polypropylene fumarate (PPF), which is cross-linked during curing, desirably by a vinyl monomer such as vinyl pyrrolidone (VP) to form the biopolymeric scaffolding which provides the cured cement with dimensional and geometric stability.

Abstract: Flow improving agents for binder suspensions containing cement are described, which consist of:a) Graft polymers which have been prepared by radical grafting of a polyalkylene oxide of the general formula (I) with an ethylenically unsaturated mono- or dicarboxylic acid or the anhydride thereof, and then by derivatizing with a primary or secondary amine and/or alcohol, and also ofb) Casein.These flow improving agents have the advantage that the ability to flow is considerably improved in comparison, for example, with casein alone, and the improved ability to flow is preserved over a longer period of time.

Abstract: An adhesive composition for surgical use including an .alpha.-cyanoacrylate adhesive composition with a polymer characteristic for biodegrading and bioabsorbing the adhesive into the body of a living organism. It is preferred that the polymer is a co-polymer of DL-lactic acid and .epsilon.-caprolactone or a co-polymer of DL-lactic acid, ethylene glycol and .epsilon.-caprolactone, or a co-polymer of ethylene glycol and .epsilon.-caprolactone.

Abstract: The present invention has for subjects, novel benzopyran derivatives, substituted in position 2 with an adamantyl group as well as the compositions and (co)polymer matrices containing such derivatives. Said derivatives possess interesting photochromic properties.

Abstract: Compatible polymer compositions and optically clear, degradable films containing from 55 to 90 wt % of a poly(hydroxy acid) polymer composition and from 10 to 45 wt % of one or more compatible thermoplastic polymers are disclosed. The films are prepared by melt processing the materials to obtain uniform composition, and forming the composition into a film of thickness from 0.01 to 2 mm. The films can be used in packaging and conventional applications.

Abstract: The improved water-soluble photosensitive resin composition comprises a high-polymer compound represented by the general formula (I): ##STR1## (where X is Na, K or NH.sub.4) and a water-soluble polymer which is either polyvinylpyrrolidone or a copolymer of vinylpyrrolidone and vinylimidazole or both. The composition is applied to a substrate, exposed through a mask pattern and developed to form a photocured pattern and, thereafter, a light absorber is applied to the entire surface of the substrate and dried, followed by stripping away the photocured pattern and the overlying light absorber to form a black matrix pattern. The composition is suitable for use as a photoresist in the manufacture of black matrices as on color CRTs and capable of efficient formation of photocured patterns with high sensitivity by shorter times and lower intensities of exposure.

Abstract: A biodegradable polymer is provided for use in providing syringeable, in-situ forming, solid biodegradable implants for animals. The polymer is placed into the animal in liquid form and cures to form the implant in-situ. A thermoplastic system to form said implant comprises the steps of dissolving a non-reactive polymer in biocompatible solvent to form a liquid, placing the liquid within the animal, and allowing the solvent to dissipate to produce the implant. An alternative, thermosetting system comprises mixing together effective amounts of a liquid acrylic ester terminated, biodegradable prepolymer and a curing agent, placing the liquid mixture within an animal and allowing the prepolymer to cure to form the implant. Both systems provide a syringeable, solid biodegradable delivery system by the addition of an effective level of biologically active agent to the liquid before injection into the body.

Abstract: The present invention is a water-responsive fiber. More particularly, the present invention is a fiber comprising a blend of a polyvinyl alcohol and a polylactide and a method of making such fibers. In a preferred embodiment, the invention is a fiber comprising a blend of polyvinyl alcohol and modified polylactide and a method of making such fibers. The fibers are useful as a component in flushable and degradable articles.

Abstract: Tetrahydrofuran/but-2-yne-1,4-diol copolymers containing C--C triple bonds and having an average molecular weight M.sub.n of from 500 to 3500 Dalton and a content of from 0.5 to 3 mol of triple bonds/mol of copolymer and blends of these copolymers with polytetrahydrofuran having an average molecular weight M.sub.n of from 500 to 3500 Dalton, processes for their preparation and their use.

Abstract: A surgical bonding material includes a continuous phase and a discontinuous phase. The continuous phase is formed from a polymerizable liquid. The discontinuous phase includes particles of bioabsorbable polymer. The bonding material may be partially or completely bioabsorbable.

Abstract: Compositions for bone repair have been developed based on linear hydrophobic degradable polymers and monomers or macromers, at least one of which includes an anhydride linkage. The monomers and/or macromers crosslink each other but not to the linear polymer to form semi-interpenetrating networks. The compositions can include various excipients, therapeutic and/or diagnostic agents. The compositions can be polymerized in the presence of dissolvable particles such as inorganic salts and proteinaceous materials to provide a porous polymer network. The compositions can be injected into a patient and polymerized in situ or can be polymerized ex vivo and implanted. When polymerized ex vivo, the composition can be shaped into various articles, such as pins, screws, and hollow tubes, which can be used to repair broken bones.

Abstract: A continuous process for the preparation of highly stable, finely divided, low viscosity polymer polyols of small average particle size wherein in the first step an intermediate is prepared by reacting (1) a mixture of at least two ethylenically unsaturated monomers, preferably styrene and acrylonitrile, in a mixture comprising (2) a base polyol and (3) a macromer in the presence of (4) a free radical initiator, (5) a solvent having moderate chain transfer activity, and, optionally, (6) a reaction moderator at a temperature of at least 100.degree. C., such that the intermediate contains at least about 12% by weight of macromer, based on the weight of the base polyol and macromer, and a solids content of at least about 15% by weight and less than about 30% by weight, based on the weight of the base polyol, macromer and ethylenically unsaturated monomers.

Abstract: This invention discloses non-crosslinked, poly-branched polymers having a comb-burst configuration and a process for preparing such polymers.

Abstract: A photodegradable and fully biodegradable plastic material, which can be molded using conventional molding techniques and which has good physical and mechanical properties includes a blend of polyisoprene and polycaprolactone resins. The material biodegrades in soil and sea water environments. All blend ingredients are completely decomposed by microorganisms. Polyisoprene is a natural polymer present in a large variety of plant species or is man made. Polycaprolactone is a synthetic polymer resin known to be decomposed by microorganisms. The plastic material has thermoplastic properties which permits processing of the material using conventional plastic working techniques. The presence of C.sub.1 -C.sub.15 saturated fatty acids and organic peroxide compatibilizers improve the properties of the blend, especially when large quantities of polyisoprenes are used which allows the production of high quality blown films.

Abstract: Thermoplastic molding compositions are made from a blend of high molecular weight and low molecular weight polycaprolactones. The blends have lower viscosity, and can have higher modulus, than a composition containing only high molecular weight polycaprolactone. The blends are especially useful for dental impressioning.

Abstract: A biodegradable polymer is provided for use in providing syringeable, in-situ forming, solid biodegradable implants for animals. The polymer is placed into the animal in liquid form and cures to form the implant in-situ. A thermoplastic system to form said implant comprises the steps of dissolving a non-reactive polymer in biocompatible solvent to form a liquid, placing the liquid within the animal, and allowing the solvent to dissipate to produce the implant. An alternative, thermosetting system comprises mixing together effective amounts of a liquid acrylic ester terminated, biodegradable prepolymer and a curing agent, placing the liquid mixture within an animal and allowing the prepolymer to cure to form the implant. Both systems provide a syringeable, solid biodegradable delivery system by the addition of an effective level of biologically active agent to the liquid before injection into the body.

Abstract: Water-soluble graft polymers are described which have been produced bya) radical grafting of a polyalkylene oxide of the general formula I ##STR1## in which R.sup.1 =--H, --C.sub.n H.sub.2n+1, --C.sub.6 H.sub.4 --C.sub.n H.sub.2n+1, ##STR2## --(CH--R.sup.2).sub.m NHR.sup.2, --(CH--R.sup.2).sub.m OH, --(CH--R.sup.2).sub.m --COOH, --CO--R.sup.5R.sup.2 =--H, --CH.sub.3, --C.sub.2 H.sub.5R.sup.3 =--H, --C.sub.n H.sub.2n+1, --C.sub.m H.sub.2m --SO.sub.3 Na, --(CH--R.sup.2).sub.m NHR.sup.2, --(CH--R.sup.2).sub.m OH, --(CH--R.sup.2).sub.m --COOH, --CO--R.sup.5R.sup.4 =--H, --(CH--R.sup.2).sub.m --COOH, --CO--R.sup.5R.sup.5 =--C.sub.m H.sub.2m+1, --C.sub.6 H.sub.5, --(CH--R.sup.2).sub.m --COOH, --C.sub.6 H.sub.4 --COOHn denotes 1-18, m denotes 1-5, x denotes 2-200, y denotes 0 or 1with an ethylenically unsaturated mono or dicarboxylic acid or their anhydride and subsequentlyb) derivatising with a primary or secondary amine and/or alcohol.

Abstract: Absorbable polymers and blends of acrylated poly(alkylene diglycolate)s and aliphatic polyesters based on lactone monomers such as lactide, glycolide, e-caprolactone, p-dioxanone, and trimethylene carbonate are described. The polymers and blends exhibit a broad range of properties, useful in a variety of medical devices.

Abstract: A polymer material formed from the reaction between ingredients comprising an azido polymer containing at least about 5 weight percent azido groups; and at least one multifunctional dipolarophile having reactive groups selected from an acrylic and an acetylenic ester or amide, the resulting polymer material comprising triazoline and/or triazole groups. Also, a method of improving the burn rate of an azido polymer including the steps of reacting an azido polymer with the above-described multifunctional dipolarophile.

Abstract: Thermoplastic elastomers (TPEs) containing side chain crystalline (SCC) blocks. The SCC blocks my be hard (A) blocks or the soft (B) blocks (or both) in the TPE. Some of these TPEs are novel, e.g. those in which A blocks are SCC blocks, and the B blocks are polyethers, polyacrylates, polyamides, polyurethanes or polysiloxanes. The SCC-containing TPEs are particularly useful as matrix materials for other components which are dispersed therein, e.g. energetic solids and other thermally responsive materials.

Abstract: Combinations of IPN type molecular or intramolecular materials, which are thermoadhesive at temperatures not exceeding 90.degree. C. and which can be molded and shaped at said temperature, are characterized in that they contain a first rubber-like elastoviscous constituent having a softening point not exceeding 90.degree. C. and a second, semi-cristalline constituent essentially of the polyester type having a fusion temperature of 35.degree. to 80.degree. C. These combinations have controlled adhesiveness and adequate fluidity for application by hand particularly in do it yourself applications, orthopedics, sport and physiotherapy, and as an adhesive material on rough or porous bodies.

Abstract: Copolymers which are obtainable by free radical copolymerization of a mixture of(a) from 20 to 95% by weight of 1-vinylpyrrolidone, a 1-vinylimidazole or a mixture of 1-vinylpyrrolidone and/or 1-vinylimidazoles which may contain up to 20% by weight of other monoethylenically unsaturated monomers and(b) from 5 to 80% by weight of water-insoluble polymers which contain at least one ethylenically unsaturated double bond and/or one mercapto group in the molecule, processes for the preparation of the copolymers by copolymerization of the compounds of groups (a) and (b) in the abovementioned amounts in water, an alcohol, an ester or a ketone in the presence of free radical initiators, and the use of the copolymers thus obtainable and of copolymers of from 20 to 95% by weight of 1-vinylpyrrolidone or a mixture of 1-vinylpyrrolidone with up to 20% by weight of other monoethylenically unsaturated monomers andfrom 10 to 80% by weight of styrene as additives for detergents for inhibiting the dye transfer during the wash

Abstract: Thermoplastic molding compositions are made from a mixture of thermoplastic material (for example, polycaprolactone), a free-radically polymerizable resin (for example, a urethane diacrylate oligomer), and free-radical initiator (for example, a visible-light cure photoinitiator). The mixture is solid at 38.degree. C., has a melting or softening point that comfortably can be withstood by oral tissues, and can be imprinted with a heat-stable custom shape memory and semi-thermoplastic properties by shaping the composition to a desired shape and then causing or permitting the resin to undergo polymerization.

Abstract: Compatibilized blends of a biodegradable hydrophobic polyester, unmodified starch or other similar polysaccharide containing less than 1% water by weight, other biodegradable polymers that may be hydrophobic, plasticizer, and other additives. The blends are produced in the absence of water. The preferred polyester polymer is poly(.epsilon.-caprolactone) and the preferred starch is from corn. A small amount of a unique stretching agent is incorporated to provide high elongations at break, especially in film forming compositions containing a significant amount of starch. The starch is a discontinuous phase that may be completely or partially plasticized and the polyester polymer is the continuous phase. The preferred polymers have unique film forming properties and are resistant to water and moisture.

Abstract: The present invention provides polymer polyols and a method for preparing polymer polyols which have (1) exceptional dispersion stability, especially at high styrene contents, and (2) substantially smaller particle sizes than polymer polyols having equivalent viscosity. In a preferred embodiment of the present invention, a first reaction product is obtained by feeding the following materials to a first continuous reactor in the presence of a free radical initiator or catalyst: (a) less than about 50 wt. % of a total monomer proportion or monomer mixture, preferably comprising styrene/acrylonitrile at a ratio preferably greater than about 50/50 wt. %; (b) at least about 50 wt. % of a total base polyol proportion; (c) a majority of a precursor stabilizer; and, (d) a polymer control agent (PCA).

Abstract: "Living" polymerization methods are described wherein a bimetallic lanthanide complex initiator is reacted with a monomer. Using these methods, link-functionalized polymers can be formed that are capable of being modified after polymerization with various reactants, or to be biodegraded through oxidation or reduction or cleavage. The bimetallic lanthanide complex initiator can be used to polymerize methyl methacrylate in a living fashion. A two-step method of forming a triblock polymer using the bimetallic lanthanide complex initiator is also disclosed.

Abstract: Polymer polyols prepared by a semi-batch process using a small amount of a seed polymer polyol are disclosed. The final polymer polyol has a broader particle size distribution as compared to an identically prepared polymer polyol prepared in the absence of the seed polymer polyol. The polymer polyols are suitable for use in producing polyurethanes, particularly polyurethane foams.

Abstract: A grafted block copolymer having a backbone and grafts produced by monomers, the backbone consisting of sequentially distributed units wherein at least one block of the backbone is soluble in the monomer composition from which the grafts are produced and in that at-least one block of the said backbone is insoluble in the said monomer composition and the process of making such grafted block copolymer by radical grafting and radical polymerization of a monomer on the backbone are preformed.

Abstract: Spherical resin particles having a sharp particle size distribution and a method for producing such particles are disclosed. Resin particles according to this invention contain at least a polyester polymer and a polymer formed from a polymerizable monomer, and have an average diameter (D) of 1 to 500 .mu.m. At least 70% by weight of the particles have a diameter in the range of 0.5 D to 2.0 D. Such resin particles can be produced by swelling polyester-containing seed particles with a polymerizable monomer and then polymerizing the polymerizable monomer in swelled seed particles.

Abstract: A moisture curable hot melt composition comprises:(a) a first isocyanate-terminated polyurethane prepolymer that is the reaction product of a crystalline polyester polyol and a polyisocyanate;(b) a crystalline, reactive wax; and(c) optionally, a second isocyanate-terminated polyurethane prepolymer that is the reaction product of a polyisocyanate and a hydroxy-functional polymer that is different than the crystalline polyester polyol.

Abstract: A polymer comprising at least one polymer chain is produced by polymerizing, in the presence of a radical generating source and an iodide compound, at least one monomer M.sub.1 having a radically polymerizable unsaturated bond between a carbon atom and an iodine atom constituting a carbon-iodine bond of the iodide compound to form at least one polymer chain between the carbon atom and the iodine atom, wherein the polymerization reaction is carried out in the presence of a monomer M.sub.2 which is different from the monomer M.sub.1 and has a larger addition reactivity with a carbon radical which is generated by cleavage of the carbon-iodine bond of the iodine compound than that of the monomer M.sub.1.

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: Spherical resin particles having a sharp particle size distribution and a method for producing such particles are disclosed. Resin particles according to this invention contain at least a polyester polymer and a polymer formed from a polymerizable monomer, and have an average diameter (D) of 1 to 500 .mu.m. At least 70% by weight of the particles have a diameter in the range of 0.5 D to 2.0 D. Such resin particles can be produced by swelling polyester-containing seed particles with a polymerizable monomer and then polymerizing the polymerizable monomer in swelled seed particles.

Abstract: The present invention provides polymer polyols and a method for preparing polymer polyols which have (1) exceptional dispersion stability, especially at high styrene contents, and (2) substantially smaller particle sizes than polymer polyols having equivalent viscosity. In a preferred embodiment of the present invention, a first reaction product is obtained by feeding the following materials to a first continuous reactor in the presence of a free radical initiator or catalyst: (a) less than about 50 wt % of a total monomer proportion or monomer mixture, preferably comprising styrene/acrylonitrile at a ratio preferably greater than about 50/50 wt %; (b) at least about 50 wt % of a total base polyol proportion; (c) a majority of a precursor stabilizer; and, (d) a polymer control agent (PCA).

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: Novel cyclic imino ether compositions containing one or more mesogenic moieties, when polymerized, result in products having improved properties.

Abstract: Graft copolymers containing a vinyl polymer as a trunk polymer component, and both organopolysiloxane and polylactone as a branch polymer component, and methods of producing them. Covering compositions containing said graft copolymers as a major component can form coats excellent in not only heat resistance and hardness, but also flexibility, weather resistance, water repellability, stain resistance, mold releasability, lubricity and so on.

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.