Abstract: The ferrules and feeding head and supply elements, insulating or exothermic, are obtained by blowing or manual molding from a formulation which comprises aluminum silicate hollow micro beads, with an alumina content below 38% in weight, an agglomerant and optional loads, in non fibrous form. Depending on the density of the micro beads, appropriate formulations may be obtained for the manufacture of ferrules and insulating and exothermic feeding head and supply elements. the ferrules obtained, have an external and internal dimensional exactness and may be coupled to the mold after production, without additional handklings and in a manual or automatic manner. Said ferrules are of interest in the production of metallic ferreous or non ferreous parts.

Abstract: The present invention relates to a container preform comprising: a polymer suitable for the production of a stretch blow molded bottle and at least one organic or metallated organic near infrared absorbing compound which absorbs at least twice as much light between about 700 nm and about 1200 nm as between about 400 mn and about 700 nm wherein said near infrared absorbing compound is present in an amount sufficient to improve reheat rate of said preform. Suitable near infrared absorbing compounds include phthalocyanines, 2,3-napthalocyanines, squaraines (squaric acid derivatives), croconic acid derivatives, substituted indanthrones and certain highly substituted anthraquinones. A process for improving the reheat rate of a container preform is also disclosed.

Abstract: Improved carbon black concentrates and extrusion compositions produced therefrom are provided. The extrusion compositions are resistant to thermo-oxidative degradation and have significantly improved carbon black dispersion rendering them useful for wire and cable and other applications. The concentrates are mixtures of a mercaptobenzimidazole compound, carbon black and polyolefin resin.

Abstract: A thermoplastic polycarbonate molding composition having improved resistance to gamma radiation-induced yellowing is disclosed. Particularly suitable for the manufacture of devices geared for medical applications, the composition contains an additive amount of a stabilizing compound conforming structurally to where R1 denotes a C1-30-alkyl group and R2 denotes an aryl radical.

Abstract: A thermoplastic polycarbonate molding composition having improved resistance to gamma radiation-induced yellowing is disclosed. Particularly suitable for the manufacture of devices targeted for medical applications, the composition contains additive amounts of a first stabilizing compound conforming structurally to wherein in the embodiment where n is 1, R1 is an unsubstituted or substituted carbocyclic or heterocyclic aromatic ring system, and where in the embodiment where n is 2, R1 is unsubstituted or C1-4-alkyl or hydroxy substituted phenylene or naphthylene, and R2, R3, R4 and R5 independently of one another are hydrogen, C1-25-alkyl groups or phenyl. and a saccharine compound.

Abstract: The present invention provides polyamide compositions comprising a polyamide, nylon 2,2, and a phosphorous-containing whitening agent having Formula I: Formula I: wherein R is hydrogen, an alkyl group with 1 to 6 carbons, a cycloalkyl group with 5 to 6 carbons, or a phenyl or methylphenyl aromatic group, and M is hydrogen or a metal. In a preferred embodiment, the polyamide is nylon 6,6 (polyhexamethylene adipamide) and the phosphorous-containing whitening agent is a hypophosphorous acid or a metal hypophosphite. Sodium hypophosphite is especially preferred. The polyamide compositions of the present invention have improved molding cycle times, and are tough, white and color-stable.

Abstract: The invention relates to binder fibers made from copolyesters, the copolyesters themselves and catalysts and processes for producing the copolyesters. More particularly, the invention relates to copolyesters formed from 1,4-cyclohexanedimethanol, ethylene glycol and terephthalic acid, napthalenedicarboxylic acid, 1,4-cyclohexane dicarboxylic acid and esters or anhydrides thereof. Such copolyesters may be formed into a variety of products, especially binder fibers for nonwoven fabrics.

Abstract: An object of the invention is to provide a flame-retardant polycarbonate resin composition which can provide a sliding property of a molding product formed of a flame-retardant resin composition obtained by blending a polycarbonate resin and a styrene resin with a phosphate ester compound and having a good flowability without decreasing an appearance of a molding product. The invention relates to a flame-retardant polycarbonate resin composition including 100 parts by weight of a resin composed of (A) from 60 to 99% by weight of a polycarbonate resin and (B) from 40 to 1% by weight of a styrene resin, (C) from 1 to 30 parts by weight of a phosphate ester compound and (D) from 0.3 to 3 parts by weight of a silicone oil having a viscosity of from 1,000 to 20,000 cs.

Abstract: The present invention relates to a polyamide resin composition comprising a polyamide resin, a modified ethylene copolymer, an amide-based dispersant and an electroconductive material, said composition having not more than 1011 &OHgr;·cm of an intrinsic volume resistivity and not less than 30 KJ/m2 of an Izod impact strength measured according to ASTM D256.

Abstract: An interface material for use in forming a coating interposed along a heat dissipating path between a solid state electronic device and a heat sinking surface. The coating consists of a formulation of a thermally stable wax which is formed as an alkyl substituted poly (hydro, methyl-siloxane) wax polymer wherein the alkyl substituted group has a chain length of between 18 and 22 carbon atoms, and being blended with a plasticizer and a solid particulate consisting of alumina, boron nitride, among others. The wax has a melting point of between 30 degrees C. and 90 degrees C., and preferably about 65 degrees C.

Abstract: A biodisintegratable nonwoven material having improved fluid management properties. The nonwoven material may be produced using a thermoplastic composition that comprises a unreacted mixture of an aliphatic polyester polymer selected from the group consisting of a polybutylene succinate polymer, a polybutylene succinate-co-adipate polymer, a polycaprolactone polymer, a mixture of such polymers, or a copolymer of such polymers; a multicarboxylic acid; and a wetting agent. The thermoplastic composition exhibits substantial biodegradable properties yet is easily processed. The biodisintegratable nonwoven materials may be used in a disposable absorbent product intended for the absorption of fluids such as body fluids.

Abstract: Paint or coating compositions are stabilized by spiroindane compounds of the following formula wherein the numbered radicals R have he meanings given in claim 1, and optionally phosphite stabilizers and phenolic antioxidants.

Abstract: Filler-containing polytetrafluoroethylene granular powder, which has a large apparent density, a small average particle size and a sharp particle size distribution and a superior powder flowability, and gives a molded product having a superior tensile strength, elongation and surface roughness, and a process for preparing the same. The granular powder is prepared by granulation of a mixture of a PTFE powder and a filler in water with stirring in the presence of an organic liquid forming liquid-liquid interface with water and a nonionic surfactant.

Abstract: Crosslinkable powder compositions are provided which are redispersible in water and comprise a) from 30 to 95 parts by weight of one or more water-insoluble, film-forming polymers of one or more free-radically polymerizable, ethylenically unsaturated monomers, b) from 5 to 70 parts by weight of one or more water-soluble polymers, where at least one of the polymer components a) and b) comprises one or more comonomer units containing crosslinkable groups, and the parts by weight of a) and b) add up to 100 parts by weight, and c) from 0.5 to 30% by weight, based on the total weight of a) and b), of inorganic or organic solids which are insoluble in water and in organic solvents and have a mean particle size of from 5 nm to 100 &mgr;m, which solids have, chemically bound to their surface, functional groups capable of forming covalent bonds with the crosslinkable groups of the polymers a) and b).

Abstract: Improved flame retardant compositions suitable for insulating wire and cable products comprised of ethylene-alkoxy silane copolymer, halogenated organic compound, antimony trioxide, silane condensation catalyst and magnesium hydroxide are provided. Additionally, antioxidant(s), other mineral fillers and other conventional compounding ingredients may be included in the formulations. The compositions have good processability and are capable of being cured under ambient conditions to provide products which meet all of the specifications of SAE J-1128 for thin wall crosslinked polyolefin low tension primary cable insulation. Wire and cable products comprising a metal conductor coated with from 2 to 100 mils of the flame retardant insulation are also disclosed.

Abstract: A process for producing an aqueous emulsion having a solid content of 70% by weight or more, a viscosity of 5,000 mPa.s or less and containing an ethylene-vinyl acetate copolymer having 10-40% by weight of ethylene unit and 90-60% of by weight of vinyl acetate unit.

Abstract: Painting composition based on fluoropolymers in an aqueous dispersion, comprising a partially fluorinated non ionic polymeric compound as an additive for the control of the viscosity and in general of the rheological characteristics of the composition itself.

Abstract: The present invention relates to rubber compositions containing organo-nitriles of the formula: N≡C—R—C≡N  (I) wherein R is selected from the group consisting of alkylenes having from 2 to 10 carbon atoms, alkylenes having from 2 to 8 carbon atoms which are substituted with N, O, S, hydroxy, alkoxy having from 1 to 3 carbon atoms or an alkyl having from 1 to 3 carbon atoms, arylenes having from 6 to 10 carbon atoms and alkarylenes having from 7 to 10 carbon atoms.

Abstract: A pneumatic tire having a tread layer. A rubber composition of the tread layer includes a specific diene-based rubber component, and either a specific zinc dithiophosphate vulcanization accelerator, or a specific zinc dithiophosphate vulcanization accelerator and a benzothiazole vulcanization accelerator. The zinc dithiophosphate vulcanization accelerator is contained in an amount of 0.2 to 5.0 parts by weight per 100 parts by weight of the rubber component. A molar amount of the benzothiazole vulcanization accelerator is one-half or more of a molar amount of the zinc dithiophosphate vulcanization accelerator. Further, the rubber composition contains a white filler in an amount of 15 parts by weight or more per 100 parts by weight of the rubber component. Produceability of the pneumatic tire is excellent, and a low heat build-up performance thereof is improved without any adverse effects on gripping performance.

Abstract: Flame-retardant, thermoplastic molding materials containing A) at least one polyphenylene ether, B) at least one vinylaromatic polymer and C) at least one flameproofing agent, comprise D) an amount of expandable graphite which increases the resistance of the molding material to dripping and are used for the production of flame-retardant moldings, fibers and films.

Abstract: A hard-type high-structure carbon black capable of providing the rubber comprising the carbon black with a high modulus, superior abrasion resistance, and gripping performance, exhibiting high abrasion resistance corresponding to the modulus, and suitable for tire treads, and a rubber composition. The hard-type high-structure carbon black of the present invention having characteristics of 70≦CTAB≦250, 130≦DBP, 115≦24M4DBP, DBP-24M4DBP≦40, &Dgr;Dst/Dst≦0.8, and a correlation factor f calculated by the following formula (1) satisfying the following formula (2). f=(Tint/CTAB)·(24M4DBP/Dst)/(N2SA/IA)  (1) 1.2≦f≦1.6  (2) The rubber composition comprising 20-150 parts by weight of the above carbon black for 100 parts by weight of natural rubbers, synthetic rubbers, or blends of these rubbers.

Abstract: The invention provides thickeners based on carboxyl- and carboxamido-containing addition polymers obtainable by free-radical emulsion or suspension polymerization of: a) from 30 to 70% by weight of carboxyl-containing, ethylenically unsaturated monomers, b) from 10 to 70% by weight of carboxamido-containing, ethylenically unsaturated monomers, and c) from 0.1 to 30% by weight of further ethylenically unsaturated monomers in the presence of at least 5% by weight of one or more water-soluble protective colloids from the group consisting of polyvinyl alcohols, polyvinyl pyrrolidones and (meth)acrylate-(meth)acrylic acid copolymers, the percentages by weight being based in each case on the overall weight of the comonomers.

Abstract: The use of a thermoplastic molding composition differing from ABS and comprising, based on a total of 100% by weight of amounts of components A and B, and, if desired, C and/or D, a: as component A, from 1 to 99% by weight, preferably from 15 to 60% by weight, in particular from 25 to 50% by weight, of a particulate emulsion polymer with a glass transition temperature of below 0° C. and with a median particle size of from 50 to 1000 nm, preferably from 50 to 500 nm b: as component B, from 1 to 99% by weight, preferably from 40 to 85% by weight, in particular from 50 to 75% by weight, of at least one amorphous or partly crystalline polymer, c: as component C, from 0 to 50% by weight of polycarbonates, and d: as component D, from 0 to 50% by weight of fibrous or particulate fillers or mixtures of these for producing sheet-like wall elements and fastening parts therefor.

Abstract: The present invention provides a resin composition containing the following components (1) and (2): (1) 100 parts by weight of a resin blend formed of an aromatic polycarbonate resin (A) in an amount of 40-80 wt. % and an aromatic polyester resin (B) in an amount of 60-20 wt. %; (2) 2-10 parts by weight of an epoxy-modified block polymer (G) or (H), wherein the epoxy-modified block polymer (G) is a polymer which is obtained by epoxidation of double bonds derived from the conjugated diene compound in a block copolymer (E) which comprises in the molecule a polymer block (C) predominantly comprising an aromatic vinyl compound and a polymer block (D) predominantly comprising a conjugated diene compound; and the epoxy-modified hydrogenated block polymer (H) is a polymer which is obtained by epoxidation of residual double bonds in a partially hydrogenated block polymer (F) which is formed by partial hydrogenation of double bonds derived from the conjugated diene compound in the above block copolymer (E).

Abstract: The present invention relates to polyurethane-polyacrylate hybrid dispersions comprising A) 20 to 99% by weight, based on resin solids, of a polyurethane wherein i) the polyurethane is rendered hydrophilic by ionic and/or nonionic hydrophilic groups and ii) the polyisocyanate component used to prepare the polyurethane contains an aliphatic or cycloaliphatic polyisocyanate containing allophanate groups, and B) 1 to 80% by weight, based on resin solids) of a polyacrylate polymer, wherein the sum of components A and B is 100%, based on the total weight of A) and B). The present invention also relates to the use of these hybrid dispersions for coating substrates, in particular wood.

Abstract: A particulate silica which has been treated with a polymer oil jelly.

Abstract: The present invention teaches heterocyclic amine modified siloxanes and their use, a preferred of which is as adjuvants for pesticides. The heterocyclic amine modified siloxanes have siloxane backbones with pendant, terminal or intermediate heterocyclic amine groups, which may contain one or more heteroatoms, i.e., nitrogen, sulfur or oxygen. The heterocyclic amine groups or the siloxane may be functionalized further with alkyl or alkyleneoxide groups.

Abstract: A dispersant of general Formula I T—(A)n(B)p—Z   (1) wherein T is hydrogen or a polymerisation terminating group; Z is an acidic or basic group or a moiety containing either an acidic or basic group; A and B are each, independently, oxyalkylene carbonyl groups derivable from &dgr;-valerolactone, &egr;-caprolactone or alkyl substituted &egr;-caprolactone provided that both are not &egr;-caprolactone or &dgr;-valerolactone; n and p are integers; and n+p is from 2 to 100; including salts thereof. Specific examples of dispersants are the reaction product of lauric acid, &dgr;-caprolactone, 7-methyl-&egr;-caprolactone with PEI, the reaction product of lauric acid, &egr;-caprolactone, &dgr;-valerolactone with PEI and the phosphate of the reaction product of dodecanol, &egr;-caprolactone and &dgr;-valerolactone.

Abstract: In a first aspect, the invention provides a diol latex composition comprising: (a) latex polymer particles comprising a residue of an ethylenically unsaturated monomer, wherein the latex polymer particles have a size below 1000 mn; (b) a surfactant; and (c) a continuous liquid phase comprising a diol component, wherein the diol component comprises from 60 to 100% by weight of the continuous phase, wherein the latex polymer particles are dispersed in the continuous phase.

Abstract: A polymer useful as an inorganic pigment dispersant is provided. The polymer is derived from monomers consisting essentially of an ethylenically unsaturated aromatic monomer, an ethylenically unsaturated dicarboxylic acid monomer, and an ethylenically unsaturated monocarboxylic acid monomer. The total amount of said ethylenically unsaturated acid monomers is sufficient to permit said polymer to associate with an inorganic pigment in an aqueous medium in a manner which disperses said inorganic pigment in said aqueous medium to form a stable aqueous dispersion of said inorganic pigment, and the amount of said ethylenically unsaturated aromatic monomer is sufficient to reduce the water sensitivity of a dried coating of a latex paint comprised of said stable aqueous dispersion of said inorganic pigment. A process of preparing a polymer useful as an inorganic pigment dispersant and a method of preparing an inorganic pigment dispersion useful in the preparation of latex paints are also provided.

Abstract: The present invention features coating compositions and methods for improving the quality of images printed on a paper substrate. The novel coating compositions contain a coating agent selected from one of (a) an azetidinium polymer, (b) a guanidine polymer, (c) a mixture of an azetidinium polymer and a guanidine polymer, and (d) a copolymer of an azetidinium monomer and a guanidine monomer. When applied to a sized paper substrate, the coating compositions provide a coated paper substrate that provides high quality printed images when printed with an ink containing a reactive dye having ionizable and/or nucleophilic groups capable of reacting with the coating agent. Images printed on a paper substrate coated with the coating composition of the invention are bleed-resistant, water-resistant (e.g., water-fast), and/or are characterized by an enhanced chroma and hue.

Abstract: The invention pertains to an electrically conductive copolymer of the general formula I: wherein A is a first polymerizable monomer which produces an electrically conductive polymer when polymerized, and represents a polymerized unit of said monomer A in the electrically conductive polymer; B is a second polymerizable monomer which when copolymerized with monomer A produces an electrically conductive polymer, and represents a polymerized unit of said monomer B in the electrically conductive polymer; w is an integer greater than or equal to 0; x is an integer greater than or equal to 1; y is an integer greater than or equal to 0; z is an integer greater than or equal to I; 11, and 12 are each independently covalent linkers or spacer arms; 13 is substituent group having a desired chemical functionality; and Bt′ is selected from the group consisting of biotin and complexes of biotin with a molecule selected from the group consisting of avidin, streptavidin, derivatives of avidin

Abstract: A curable resin composition contains (A) a curable resin and (B) a ketimine structure-bearing organosilicon compound obtained by reacting an amino-functional alkoxysilane with a monocarbonyl compound, the organosilicon compound having a monomer purity of 50-95% and an amino group blockage of at least 90%. The composition has good shelf stability and tight adhesion and is useful as an adhesive.

Abstract: Thermosetting coating compositions, e.g., powder coating compositions, are provided and comprise: (a) a first reactant having functional groups, e.g., an epoxide functional (meth)acrylic polymer; (b) a second reactant having functional groups that are co-reactive with the functional groups of the first reactant, e.g., a carboxylic acid functional crosslinking agent; and (c) a polymeric flow control agent. The flow control agent is a block copolymer prepared by controlled radical polymerization and comprises: (i) a first block containing residues of at least one first ethylenically unsaturated radically polymerizable monomer that is free of hydroxy functionality; and (ii) a second block containing residues of at least one second ethylenically unsaturated radically polymerizable monomer that is free of hydroxy functionality. The second monomer of the flow control agent has a calculated Tg of at least 20° C. greater than that of the first monomer.

Abstract: This invention is directed towards golf balls comprising at least a cover and a core, and optionally one or more intermediate layers, wherein the cover and/or the intermediate layer(s) are formed from a high crystalline copolymer or its ionomer derivatives and blends thereof, wherein the high crystalline copolymer is formed from an ethylene/carboxylic acid copolymer comprising about 5 to about 35 percent by weight acrylic or methacrylic acid, wherein the copolymer is polymerized at a temperature of about 130° C. to 200° C. at pressures of at least 20,000 psi to about 50,000 psi, wherein up to about 70 percent of the acid groups are neutralized with a metal ion.

Abstract: Vulcanized rubber parts suitable to dampen vibrations generated by mechanical devices are disclosed. The parts are based on a cured composition comprising one or a mixture of a diolefin polymers, e.g., natural rubber, a halogenated copolymer of a C4 to C7 isomonoolefin, e.g., isobutylene, and a para-alkylstyrene, filler and a curing system. The vulcanized parts exhibit improved aging and high temperature resistance and reduced deterioration of dynamic properties after long term exposure to high temperatures.

Abstract: The present invention relates to compositions containing impact copolymer compositions that are a blend of a propylene polymer phase and a rubber phase in which the ethylene content of the rubber phase is between about 75 to about 95% by weight. The rubber content of the impact copolymer composition ranges between about 35% by weight to about 60% by weight. The crystallinity of the high ethylene-content rubber phase provides overall improvement in film properties and also balance of film tensile properties in the machine and transverse directions. Compared to traditional impact copolymer compositions having a low ethylene content-rubber phase, the inventive copolymers have significantly enhanced melting and crystallization peaks due to polyethylene-like crystallinity in the rubber phase.

Abstract: A novel composition is disclosed comprising about 85 to about 99 weight percent based on the composition of a polymeric ethylenic containing component having a density no greater than 0.94 g/cc, and about 1 to about 15 weight percent based on the composition, of a propylene polymer comprising 0 to less than about 1 weight percent based on the polymer, of olefin comonomer units and from about greater than 99 to 100 weight percent propylene, based on the polymer, the propylene polymer having a viscosity of about 1 to about 2,000 mPa.s at 190° C. and a needle penetration of about 5 to about 50 dmm at 23° C. Also disclosed are films produced from the composition, both blown and cast, and both monolayer and multilayer. Also disclosed are processes for stretch wrapping and forming blown film.

Abstract: Blends of syndiotactic 1,2-polybutadiene and rubbery elastomers are prepared by a process that comprises polymerizing 1,3-butadiene monomer into syndiotactic 1,2-polybutadiene within a rubber cement of at least one rubbery elastomer by using an iron-based catalyst composition that is formed by combining an iron-containing compound, a hydrogen phosphite, and an organoaluminum compound.

Abstract: Elastomeric block copolymers comprising at least one hard block A composed of styrene monomers and at least one elastomeric block (B/A) composed of styrene monomers and dienes, the glass transition temperature Tg of the block A being more than 25° C. and that of block (B/A) being less than 25° C. and the phase volume ratio of block A to block (B/A) being chosen so that the proportion of the hard phase in the total block copolymer is from 1 to 40% by volume and the amount by weight of the diene is less than 50% by weight, and the relative proportion of 1,2 linkages of the polydiene, based on the sum of 1,2- and 1,4-cis/trans linkages, being below 15%, are prepared by anionic polymerization by means of a lithium alkyl in a nonpolar solvent in the presence of a soluble potassium salt and are used for the production of shaped articles.

Abstract: The present invention provides a rubber composition for a tire tread which comprises 100 parts by weight of a rubber component comprising 50 parts by weight or more of SBR and the remaining amount of a synthetic rubber and/or natural rubber, 25 parts by weight or more of a softener, and 0.5 to 5.0 parts by weight of a vulcanization accelerator, such as bis(4-methylbenzothiazolyl-2)-disulfide, bis(5-methylbenzothiazolyl-2)-disulfide, mercapto-4-methylbenzothiazole, and mercapto-5-methylbenzothiazole, and a pneumatic tire produced by using this rubber composition. A tire having excellent controllability and ride quality throughout tire life can be provided.

Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure: M—Qn—Z—O—[A(R1R2R3)] wherein M is an alkali metal selected from the group consisting of lithium, sodium and potassium; Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons, alkenylsubstituted aromatic hydrocarbons, and mixtures thereof into the M—Z linkage; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; A is an element selected from carbon and silicon; R1, R2, and R3 are independently selected from hydrogen, alkyl, substituted alkyl groups containing lower alkyl, lower alkylthio, and lower dialkylamino groups, aryl or substituted aryl groups containing lower alkyl, lower alkylthio, and lower dialkylamino groups, and n is an integer from 1 to 5, monof

Abstract: A functionalized polymer of the formula A—Z—X where A is a block of vinylaromatic monomers of 8 to 20, preferably 8 to 12, carbon atoms, Z is a basic building block of a compound having sterically hindering groups and X is a functionalized basic building block, the degree of functionalization of the polymer being at least 65%, preferably greater than 85%, particularly preferably at least 90%, a process for its preparation, thermoplastic molding materials containing said polymer, processes for their preparation, the use for the production of moldings, and moldings containing said molding materials.

Abstract: A dispersant comprises a polystyrenesulfonic acid having a weight-average molecular weight in the range of 2,000 to 100,000 or a salt thereof, wherein at least 70% of the terminals of the polymer chain have an indane ring of the formula (I): wherein X represents a cation selected from the group consisting of a hydrogen, alkali metals, alkaline earth metals, ammonium and organic amines, and n and m each represent 0 or an integer of at least 1. The dispersant has excellent properties of dispersing organic and inorganic substances and an effect of remarkably improving the stability of a dispersion system such as a coal/water slurry.

Abstract: An olefin ring-opening metathesis polymer is hydrogenated to obtain a hydrogenated product thereof in high yield.

Abstract: In producing chlorinated polyvinyl chloride resin having chlorination degree of 60-73% by weight, wherein polyvinyl chloride resin is suspended in an aqueous medium and chlorine gas is blown into said suspension under beam of a mercury lamp in the temperature range of 40-90° C., an organic peroxide compound having a 10 hour half-life in the range of 40-90° C. is added into the reaction vessel in the ratio of 0.01-1 parts to 100 parts of the polyvinyl chloride resin by weight before the chlorination reaction is started. By this method, the time for chlorination reaction can be shortened without sacrificing the initial coloring and the heat stability, whereby chlorinated polyvinyl chloride can be produced with significantly improved productivity.

Abstract: Solutions of graft polymers of a polymer having reactive hydrogen groups and grafted through reactive hydrogen groups an alkoxy metallic compound wherein the metal is titanium, zirconium and/or hafnium are useful as photoresist materials which are resistant to plasma. Also, compounds and graft polymers wherein the alkoxy metallic compound also contains silicon, tin or germanium are provided.

Abstract: A method for the preparation of a succinimide copolymer by the catalytic co-polymerization of aspartic acid with a selected polyfunctional monomer in the presence of a cyclic carbonate solvent. Succinimide copolymers of relatively high weight average molecular weight and high purity can be produced in relatively high yields while employing a relatively low catalyst loading.

Abstract: A process for preparing a polymer composition useful as a prepreg comprises (a) melt-mixing at least one thermoplastic polymer above the glass transition temperature or melt temperature of the thermoplastic polymer with either (i) an uncured epoxy resin or (ii) an epoxy curing agent or a catalyst; (b) melt-mixing above the glass transition temperature or melt temperature of the thermoplastic polymer, the other of (i) an uncured epoxy resin or (ii) an epoxy curing agent or a catalyst to form a substantially uncured but essentially curable and/or polymerizable composition; (c) optionally forming a shaped product from the melt-mixed composition of (b); and (d) fast-curing and/or fast-polymerizing the optionally formed shaped product.

Abstract: A process is disclosed for the particle form polymerization of olefins. The process employs a titanium-containing having hydrocarbon soluble titanium components. The resulting catalyst is pretreated with an organometallic reducing agent prior to the introduction of the catalyst into the polymerization zone to give a catalyst which can be used satisfactorily in a loop reactor with lower levels of cocatalyst.