Abstract: A flame retardant levulinic acid-based compound, a process for forming a levulinic acid-based flame retardant polymer, and an article of manufacture comprising a material that contains a flame retardant levulinic acid-based polymer are disclosed. The flame retardant levulinic acid-based compound has variable moieties, which include phenyl-substituted and/or R functionalized flame retardant groups. The process for forming the flame retardant polymer includes forming a phosphorus-based flame retardant molecule, forming a levulinic acid derivative, chemically reacting the phosphorus-based flame retardant molecule and the levulinic acid derivative to form a flame retardant levulinic acid-based compound, and incorporating the levulinic acid-based flame retardant compound into a polymer to form the flame retardant polymer.

Abstract: The present invention relates to a method for preparing a nitrile-based rubber, by which the nitrile-based rubber is prepared by polymerizing a monomer mixture comprising an ?,?-unsaturated nitrile-based monomer and a conjugated diene-based monomer, in the presence of an initiator and an emulsifier comprising a C30 to C60 compound having two or more carboxyl groups, a nitrile-based rubber prepared thereby, and a nitrile-based rubber composition comprising the nitrile-based rubber.

Abstract: The present invention relates to a method of preparing an ABS-based graft copolymer having improved impact strength and an ABS-based injection-molded article including the same. More particularly, the present invention provides an ABS-based copolymer resin having improved impact strength by optimizing structures of large-diameter diene-based rubber latex particles and a matrix structure between ABS-based copolymer particles and a SAN resin through introduction of a multimeric acid of an unsaturated fatty acid or a metal salt thereof as an emulsifier in a large-diameter diene-based rubber latex polymerization step and an ABS graft polymerization step.

Abstract: The present invention relates to a method for preparing a low styrene-butadiene rubber having a low combined styrene content and, more particular, to a method for preparing a low styrene-butadiene rubber, wherein the low styrene-butadiene rubber contributes to an excellent polymerization rate and vulcanization rate by using an aliphatic organic acid and a sulfonate based compound as emulsifiers, and is excellent in heat stability after blending, thereby improving the workability and viscosity in in roll processing, such that the low styrene-butadiene rubber is advantageous to produce a molded article with improved rigidity and hardness when mixed with a high styrene-butadiene rubber.

Abstract: The present invention relates to in-mold coating of a cyclic olefin polymer. More particularly, the present invention relates to methods and compositions for in-mold coating cyclic olefin polymers prepared by ring opening metathesis polymerization (ROMP) reactions and the manufacture of polymer articles via ROMP. Polymer products produced via the metathesis reactions of the invention may be utilized for a wide range of materials and composite applications. The invention has utility in the fields of polymer and material chemistry and manufacture.

Abstract: A method of making a diluted organopolysiloxane containing polymer comprising the steps of:— (i) Preparing an organopolysiloxane containing polymer by reacting a siloxane containing material with:— (a) one or more organopolysiloxane polymers(s) or (b) one or more organic polymers(s) via an addition reaction pathway in the presence of an extender and/or plasticiser, a suitable catalyst and optionally an end-blocking agent; and (iii) Where required quenching the polymerisation process; wherein the extender and/or plasticiser is substantially retained within the resulting diluted organopolysiloxane containing polymer.

Abstract: In-situ plasticized thermoplastic polyurethane (TPU) compositions are made by a process which involves reacting a polyol, glycol chain extender and a polyisocyanate where the reaction is conducted in the presence of a plasticizer. The reactants together with the plasticizer are added to a reaction extruder and reacted to form the in-situ plasticized TPU.

Abstract: The invention relates to methods for obtaining the photochromic latex comprising the polymerization in aqueous emulsion of an initial polymerizable mixture, comprising one or more monomers polymerizable by free-radical mechanism and one or more photochromic compounds and the addition to the initial polymerizable mixture, during the polymerization of the initial polymerizable mixture or to the final latex of at least one agent for stabilizing the photochromic properties. Such latexes can be used in the production of photochromic films. Such films may be used, for example, on optical lenses.

Abstract: The invention relates to methods for obtaining the photochromic latex comprising the polymerization in aqueous emulsion of an initial polymerizable mixture, comprising one or more monomers polymerizable by free-radical mechanism and one or more photochromic compounds and the addition to the initial polymerizable mixture, during the polymerization of the initial polymerizable mixture or to the final latex of at least one agent for stabilizing the photochromic properties.

Abstract: Elastomeric silicones, especially elastomeric silicone polyethers, are prepared by combining and reacting (A) an ≡Si—H containing polysiloxane, (B) a mono-alkenyl polyether, (C) an active ingredient such as a vitamin, antimicrobial agent, sunburn prevention agent, astringent, or sex hormone, (D) an &agr;,&ohgr;-unsaturated hydrocarbon, (E) a platinum catalyst, and (F) an oil. The reaction of components (A)-(F) is allowed to continue, forming a crosslinked three-dimensional gelled network of the elastomeric silicone polyether containing the active ingredient and the oil. The compositions are useful in personal and health care applications, personal hygiene, and household cleaning applications.

Abstract: The present invention relates to an aqueous-based coating composition for forming strippable, protective coating for protecting surfaces, such as glass, metal, ceramic, plastic or other materials of construction. More specifically, the compositions and coatings formed therefrom of this invention are particularly useful in connection with protecting precision surfaces, such as optical lenses, including but not limited to ophthalmic lenses, telescopic lenses, microscopic lenses, and the like, which protection is desirably only of a temporary nature.

Abstract: Low molecular weight siloxane fluids are thickened by silicone elastomers. The silicone elastomers are made by combining in one pot an .tbd.Si--H containing siloxane, a mono-alkenyl polyether, an alpha, omega-diene, and a low molecular weight siloxane fluid. An elastomer, i.e. gel, with polyether groups is produced. The elastomer can be swollen with the low molecular weight siloxane fluid under shear force, to provide a uniform silicone paste. The silicone paste has excellent spreadability upon rubbing, and possesses unique rheological properties in being thixotropic and shear thinning. The silicone paste can be easily emulsified with water to form a stable uniform emulsion, without using a surfactant to allow normally immiscible materials to become intimately mixed.

Abstract: An internal mold release system is provided which comprises (a) a polysiloxane compound; and (b) an amine salt of a carboxylic acid.

Abstract: The present invention provides a (meth)acrylic molding material comprising (A) a (meth)acrylic polymer obtained by polymerization of monomer components essentially containing a monomer having (a) carboxyl group(s) and an alkyl (meth)acrylate monomer, and (B) one or more kinds of monomers containing a vinyl group, wherein 30-600 parts by weight of aluminum hydroxide and 0.01-10 parts by weight of a succinic acid derivative are added for 100 parts by weight of the total of said polymer (A) and monomer (B). The (meth)acrylic molding material is thickened by aluminum hydroxide and the thickening behavior is controlled by the succinic acid derivative to prevent the viscosity from increasing with time, accordingly, the (meth)acrylic molding material shows good workability.

Abstract: The invention relates to the use of a mixture of(a1) a naturally occurring, zwitterionic phosphatide or a mixture of naturally occurring zwitterionic phosphatides and(a2) cholic acid and/or a salt of cholic acid and/or deoxycholic acid and/or a salt of deoxycholic acid and/or ricinoleic acid and/or a salt of ricinoleic acid and/or oleic acid and/or a salt of oleic acidas an emulsifier for the preparation of aqueous polymer dispersions which can be prepared by free radical emulsion polymerization of monomers which can be polymerized by free radicals or mixtures of monomers which can be polymerized by free radicals.

Abstract: This invention relates to mixtures of urethane prepolymers of allophanate-modified diphenylmethane diisocyanates with epoxides. The addition of the epoxide increases the reactivity of these prepolymers. It is now possible to form polyurethanes from these mixtures based on prepolymers of diphenylmethane diisocyanates wherein less catalyst is necessary.

Abstract: The invention provides polyurethane components and compositions capable of providing internal mold release properties in SRIM applications. The polyol composition of the invention has an isocyanate reactive polyol (A) having a number average molecular weight from 100 to about 10,000 and an effective amount of internal mold release composition (B) having a silicon-containing polymer (a) and an at least diester functional compound (b) which is the reaction product of (i) an aromatic carboxylic acid, and (ii) alcohols having from 2 to 30 carbons. The invention further provides an SRIM polyurethane composition useful in the preparation of molded polyurethane articles having internal mold release properties, the composition comprising an isocyanate component (I) and the isocyanate reactive polyol composition (component (II)) disclosed above.

Abstract: A room temperature curable rubber composition of a condensation curing type that comprises as a base polymer a diorganopolysiloxane or a polyoxyalkylene in which both ends of the molecular chain are blocked with a hydrolyzable silyl group, and a carbonyl compound, an amino group containing organic compound, and an .alpha.,.beta.-unsaturated carbonyl compound that are blended with the base polymer. Since the room temperature curable rubber composition is cured with water in the air and at the same time the dehydration condensation of the carbonyl group and the amino group produces water in the composition, the quick curability and deep curability are improved remarkably.

Abstract: This invention provides a primer composition comprising (A) a polyorganosiloxane resin containing at least 0.01 mole of hydroxyl groups per 100 g of the resin represented by the average composition formula: (R.sup.1).sub.a SiO.sub.(4-a)/2 wherein each R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group, and a is a value of 0.4 to 1.8; (B) an alkoxytitanium or a partially hydrolyzed product thereof; (C) an acid; and (D) a solvent. The primer composition can strongly adhere a condensation type room temperature curable silicone elastomer to the surface of the coated metal formed by applying a fluororesin coating, an acrylic resin coating or the like to a metal.

Abstract: An adhesive silicone composition comprising (A) an alkenyl group-containing organopolysiloxane, (B) an organohydrogen-polysiloxane having at least three hydrogen atoms each directly bonded to a silicon atom in a molecule, (C) a compound having at least one aliphatic unsaturated group and at least two phenyl skeletons in a molecule, and (D) a platinum catalyst is well adhesive to both metals and reins, and even to difficult-to-adhere resins such as nylon, polycarbonate and acryl resins.

Abstract: This invention relates to a polyurea-imide RIM composition, molded articles of a polyurea-imide RIM composition, and a method of forming a polyurea-imide molded article.

Abstract: An aqueous ambient dry paint coating based on vinyl acetate matrix polymer containing a chlorinated hydrocarbon modifier selected from a chlorinated hydrocarbon having a Tg below -20.degree. C. and a number average molecular weight between 150 and 5,000, where the coating is free of organic coalescing solvents as well as other volatile organic compounds (VOC). The matrix polymer is produced by mixing the chlorinated modifier with the vinyl acetate monomer and other ethylenic monomers, if any, to form an organic mixture, providing an aqueous micro dispersion of the organic mixture phase having droplet size less than 5 microns, and copolymerizing the monomer to produce a polymeric binder of vinyl acetate polymer containing chlorinated modifier, where the polymeric binder system and coating is free of coalescing organic solvent.

Abstract: An aqueous ambient dry paint coating based on vinyl acetate matrix polymer containing a chlorinated hydrocarbon modifier selected from a chlorinated hydrocarbon having a Tg below -20.degree. C. and a number average molecular weight between 150 and 5,000, where the coating is free of organic coalescing solvents as well as other volatile organic compounds (VOC). The matrix polymer is produced by mixing the chlorinated modifier with the vinyl acetate monomer and other ethylenic monomers, if any, to form an organic mixture, providing an aqueous micro dispersion of the organic mixture phase having droplet size less than 5 microns, and copolymerizing the monomer to produce a polymeric binder of vinyl acetate polymer containing chlorinated modifier, where the polymeric binder system and coating is free of coalescing organic solvent.

Abstract: A non-polymerizable polycarboxylate imparts greater wet strength to nonwovens bound by an emulsion polymer containing a polymerizable cross-linker.

Abstract: A process for preparing a self-crosslinkable aminosiloxane emulsion, comprising:dispersing by emulsification in water in the presence of a cationic surface active agent and a nonionic surface active agent:(A) a specific organosilicon compound that may have a hydroxyl group and/or an alkoxy group;(B) a specific organosilicon compound having a nitrogen-containing monovalent hydrocarbon group; and(C) a specific organosilane having a hydroxyl group and/or an alkoxy group, and or a partial hydrolysis-condensation product thereof;subsequently carrying out emulsion polymerization in the presence of an alkaline catalyst; andthereafter neutralizing the reaction product.The resulting emulsion is useful as softening agents, smoothing agents or feeling improver for all sorts of textiles, and binders between fibers.

Abstract: The present invention relates to a polyethylene terephthalate based copolyester modified by aliphatic dicarboxylic acid containing not less than 9 carbon atoms and poly(tetramethylene oxide)glycol, and to a polyester resin composition comprising said copolyester.Said polyester resin composition exhibits excellent toughness, impact strength and moldability without harming the inherent characteristics of polyethylene terephthlate.

Abstract: Polyol mixtures having about 10 to 60 weight percent of a ricinoleate compound and 90 to 40 weight percent of a C.sub.2 -C.sub.6 hydrocarbon polymer having at least one hydroxyl group. Polyurethane compositions comprising the reaction product of this polyol mixture with an organic isocyanate compound. These compositions may optionally include certain extender compounds. Also, a method for lowering the viscosity of C.sub.2 -C.sub.6 hydrocarbon polymer having at least one hydroxyl group by adding a ricinoleate compound thereto.

Abstract: Process for the preparation of polymer dispersions with particle diameters of 50 to 1000 nm, wherein there are employed, as emulsifiers for the emulsion polymerization citric acid derivatives of the general formula (I) ##STR1## in which, independently of one another, R.sub.1, R.sub.2 and R.sub.3 denote C.sub.6 -C.sub.20 -alkyl, (including cycloalkyl) hydrogen, sodium, potassium, lithium or ammonium andR.sub.4 denotes hydrogen or acetyl,with the proviso that at least one of the radicals R.sub.1 to R.sub.3 denotes alkyl, and as initiators water-soluble agents which form free radicals or redox systems with at least one water-soluble component.

Abstract: The process for preparing polyurethanes by the reaction of a bicyclic amide acetal and a polyisocyanate in the presence of a plasticizer such as dioctyl phthalate and a polyurethane catalyst such as stannous octoate is described.

Abstract: This invention relates to a mould material binding agent system for the manufacture of foundry mould parts. This binding agent system contains, as components, a solution of a phenol-containing polyol having at least two OH-groups in the molecule and a polyisocyanate, optionally in the form of a solution, having at least two NCO-groups in the molecule, which react with each other to a cold-hardening binding agent with formation of polyurethane. As polyisocyanate component there are used (optionally phenyl-substituted) diphenyl-4,4', diisocyanates having a content of more than 10% by wt. (referred to the total quantity of polyisocyanate), preferably more than 20% by wt., of the isomeric diphenyl-2,4'-diisocyanate (likewise optionally phenyl-substituted), which also contain an addition of a small quantity of acid chlorides and/or chlorosilanes.

Abstract: An antistatic additive for polymers, particularly polyurethanes is disclosed comprising an ionizable metal salt and an enhancer comprising a non-ionizable salt or ester of an organic acid.

Abstract: Hydrolysis-resistant, thermoplastic molding compositions are made from high-molecular weight, linear polybutylene terephthalate and 0.1-10 mole %, based on the amount of the dicarboxylic acid component of the polyester, of a salt of Formula (A)[(-O.sub.3 S).sub.x R--CO.sub.2.sup.-).sub.2 ]M, (A)whereinM is an alkali or alkaline earth metal cation,R is an aromatic or cycloaliphatic residue or an aliphatic residue of 2-20 carbon atoms in the carbon chain, andx is 0 or 1.

Abstract: Room temperature stable organopolysiloxane compositions containing organosilicon compounds having Si-bonded hydrogen atoms and aliphatic multiple bonds, a platinum catalyst which promotes the addition of Si-bonded hydrogen atoms to the aliphatic multiple bonds and an inhibitior which prevents premature crosslinking at room temperature selected from the group consisting of a maleinimide and a maleic acid derivative of the formula ##STR1## where R.sup.1 is a hydroxyl group or a trimethylsiloxy group and R.sup.2 is a monovalent hydrocarbonoxy radical having from 1 to 20 carbon atoms per radical, which is bonded to the carbon atom of the ##STR2## group or a monovalent hydrocarbonoxy radical having from 1 to 20 carbon atoms per radical, which is bonded to the carbon atom of the ##STR3## group and which is substituted with at least one triorganosilyl group.

Abstract: A phenol-aldehyde resole resin is disclosed which is produced in the presence of a plasticizing amount of a phenolic ester reaction product of an unsaturated fatty acid with a phenol. These compositions are characterized by improved flexibility and moisture resistance. The resins are especially useful for impregnating cellulosic materials. Particular utility has been found for these compositions as filter elements wherein the impregnated cured paper can be corrugated after curing without cracking to provide an economical and superior filter paper.

Abstract: Room temperature stable organopolysiloxane compositions containing organosilicon compounds having Si-bonded hydrogen atoms and aliphatic multiple bonds, a platinum catalyst which promotes the addition of Si-bonded hydrogen atoms to the aliphatic multiple bonds and an inhibitor which prevents premature crosslinking at room temperature selected from the group consisting of a maleinimide and a maleic acid derivative of the formula ##STR1## where R.sup.1 is a hydroxyl group or a trimethylsiloxy group and R.sup.2 is a monovalent hydrocarbonoxy radical having from 1 to 20 carbon atoms per radical, which is bonded to the carbon atom of the ##STR2## group or a monovalent hydrocarbonoxy radical having from 1 to 20 carbon atoms per radical, which is bonded to the carbon atom of the ##STR3## group and which is substituted with at least one triorganosilyl group.