Abstract: The present invention relates to a stabilizer composition for halogen-containing polymers and polymer mixtures, comprising at least one hydroquinone compound to prevent or reduce photoblueing of the polymers, polymer compositions comprising the stabilizer compositions, and to methods of using the stabilizer compositions.

Abstract: The invention relates to flame retarded extruded polystyrene foams with a very low halogen content in the final product, i.e. containing a very low content of hexabromocyclododecane or preferably hexabromocyclododecane free, and a process for their preparation. The invention also relates to their use in construction, as building thermal insulating materials, or in transportation.

Abstract: The present invention relates to a stabilizer composition for halogen-containing polymers and polymer mixtures, comprising at least one hydroquinone compound to prevent or reduce photoblueing of the polymers, polymer compositions comprising the stabilizer compositions, and to methods of using the stabilizer compositions.

Abstract: Disclosed is a non-aqueous inkjet ink that includes a polyvinyl chloride resin synthesized by a suspension polymerization method or an emulsion polymerization method; an organic solvent that is a mixed solvent comprising diethylene glycol ethyl methyl ether, diethylene glycol diethyl ether, and diethylene glycol monoethyl ether in which the polyvinyl chloride resin is dissolved; a pigment; and a radical polymerization inhibitor. In another embodiment, the mixed solvent includes N-methyl-2-pyrrolidone, diethylene glycol diethyl ether, and diethylene glycol monoethyl ether. The radical polymerization inhibitor prevents the polyvinyl chloride resin from gelling in a short period and causing a discharge fault, clogging, etc. Also disclosed is an ink set of inkjet inks includes a combination of the non-aqueous inkjet inks above having respective colors and including at least a cyan ink; a magenta ink; a yellow ink; and a black ink.

Abstract: Insulating paint, containing a resin that can form an insulating film by application and baking, and a reducing agent having a boiling point of 160° C. or higher.

Abstract: The invention relates to a one component heat curable powder coating composition comprising a resin containing reactive unsaturations and wherein all said reactive unsaturations are carbon carbon double bonds connected directly to an electron withdrawing group, a thermal initiation system comprising a peroxide chosen from the group of compounds represented by formula (1), wherein R1 and R2 each independently stand for an optionally substituted alkyl of 1 to 30 C-atoms, wherein the 1 to 30 C-atoms do not include the C-atoms of the substituents or for an optionally substituted aryl of 6 to 18 C-atoms, wherein the 6 to 18 C-atoms do not include the C-atoms of the substituents, and a co-crosslinker chosen from the group of vinylethers, vinyletherurethanes, vinylesters, vinylamides, itaconates, enamines, vinylureas and mixtures thereof.

Abstract: Golf balls comprising a core and a cover are disclosed. The core is a dual- or multi-layer core, wherein at least one layer is formed from a rubber composition comprising a base rubber and a quinhydrone. The core layer formed from such rubber composition has a positive hardness gradient such that the difference between the layer's outer surface hardness and inner surface hardness is 5 Shore C units or greater.

Abstract: Golf balls comprising a core and a cover are disclosed. The core is a dual- or multi-layer core, wherein at least one layer is formed from a rubber composition comprising a base rubber, a free radical initiator, and a hydroquinone. A ratio of the amount of the hydroquinone present in the rubber composition, measured in parts by weight, to the amount of free radical initiator present in the rubber composition, measured in parts by weight, is generally from 0.05 to 2. The core layer formed from such rubber composition has a positive hardness gradient such that the difference between the layer's outer surface hardness and inner surface hardness is 5 Shore C units or greater.

Abstract: Golf balls consisting of a core and a cover are disclosed. The core is a solid, single-layer core formed from a rubber composition comprising a base rubber and a quinhydrone. The core has a positive hardness gradient such that the difference between the core's surface hardness and the core's center hardness is 25 Shore C units or greater and/or the core has a diameter of from 1.51 inches to 1.59 inches.

Abstract: Disclosed is a photocurable resin composition which is highly sensitive to ultraviolet light or visible light having a long wavelength, in particular a photocurable resin composition which is useful as a sealing agent. Specifically disclosed is a photocurable resin composition containing a component (a) which is composed of an anthraquinone derivative represented by the formula (I) below, and a component (b) which is composed of a compound having a (meth)acryloyl group in the molecule. The photocurable resin composition is characterized in that a part or the entire of the component (b) further contains an oxiranyl group in the molecule, and the component (a) content is 0.01-10% by mass relative to the component (b) content. [chemical formula 1] (I) (In the formula (I), X represents a phenyl group, an alkyl group having 1-8 carbon atoms, an alcoholic form of the phenyl group or the alkyl group, or a derivative of the alcoholic form.

Abstract: A polyolefin composition which comprises: (a) a polyolefin containing transition metal catalyst residue (excluding metallic co-catalyst residues) at a level below 5 ppm based on the weight of the polyolefin; (b) optionally a first stabilizing component consisting of a phenolic antioxidant or mixture of phenolic antioxidants; (c) optionally a second stabilizing component consisting of a phosphite antioxidant or a mixture of phosphite antioxidants; and (d) a third stabilizing component which acts also as a color suppressant and which is a polyfunctional alcohol, amine or amide or mixtures thereof, with at least one of (b) and (c) present and with the proviso that if the phosphite antioxidant is trilauryl phosphite it must be used in combination with another phosphite. The preferred stabilizing components (b) is 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6 dimethyl,benzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione or mixed tocopherols.

Abstract: The present invention relates to curable compositions which are capable of safely and sufficiently bonding components of electrical devices. In particular, the invention relates to two-part, halogen-free curable compositions which are capable of rapidly curing at room temperatures as well as at elevated temperatures.

Abstract: The present invention relates to a cross-linked polyethylene composition having outstanding sweat-out inhibition and insulation properties. The composition of the invention characteristically comprises (A) 100 weight part of polyethylene; (B) 0.2-0.6 weight part of a mixture of a liquid antioxidant and a hindered phenol or thio ester antioxidant; (C) 0.2-0.9 weight part of polyethylene glycol having a molecular weight of 5,000-70,000; and (D) 1-4 weight part of a cross-linking agent.

Abstract: The present invention is directed to a golf ball having at least one layer formed from a rubber composition comprising a base rubber, a free radical initiator, and a quinhydrone. The free radical initiator is generally present in the rubber composition in an amount of at least 0.05 parts by weight per 100 parts of the base rubber. The quinhydrone is generally present in the rubber composition in an amount of at least 0.05 parts by weight per 100 parts of the base rubber. The rubber composition may be present in any one or more of a core layer, a cover layer, or an intermediate layer.

Abstract: Disclosed herein is a resin composition for the manufacture of coatings such as polymeric concretes, terrazzos and finishes, comprising: a) from 15 to 50% by weight of methyl methacrylate (MMA) monomer; b) from 25 to 75% by weight of a mixture of equal parts of polyester resins of: i) an isophthalic polyester resin; ii) an orthophthalic polyester resin; and iii) a neopentyl polyester resin; c) up to 8% by weight of an epoxy resin obtained from bisphenol A and epichlorohydrin; and d) up to 5% by weight of an aliphatic or aromatic polyurethane resin.

Abstract: The present invention relates to a cross-linkable or cross-linked rubber composition which is usable to constitute a tire tread having improved wear resistance, to such a tread and to a tire incorporating this tread. A rubber composition according to the invention comprises a diene elastomer of a number-average molecular weight Mn of less than 2000 g/mol which has a glass transition temperature Tg of greater than ?25° C., and it is such that said elastomer comprises one or more units resulting from the polymerisation of a vinylaromatic monomer, such as styrene. The invention applies in particular to tires of passenger-vehicle type.

Abstract: A curable composition includes a functionalized poly(arylene ether), an olefinically unsaturated monomer, about 0.2 to about 5 parts by weight of a curing initiator per 100 parts by weight total of the functionalized poly(arylene ether) and the olefinically unsaturated monomer, and about 0.005 to about 1 part by weight of a curing inhibitor per 100 parts by weight total of the functionalized poly(arylene ether) and the olefinically unsaturated monomer. The weight ratio of the curing initiator to the curing inhibitor is about 1.2:1 to about 50:1. The composition provides improved and reproducible flow during the early stages of molding without compromising curing time. The composition is useful for preparing plastic-packaged electronic devices.

Abstract: A heat-sensitive adhesive material includes a substrate, a heat-sensitive adhesive layer containing a thermoplastic resin and a solid plasticizer formed on the substrate, and a heat-fusible substance capable of depressing the solidifying point of the solid plasticizer in at least one of the heat-sensitive adhesive layer and a layer adjacent to the heat-sensitive adhesive layer. The heat-fusible substance satisfies the following condition (A): E1<E2 where E1 is heat energy to fuse the solid plasticizer; and E2 is heat energy to fuse the heat-fusible substance.

Abstract: The present invention provides a solid golf ball having exceptional rebound characteristics and flight performance, as well as good shot feel. The present invention relates to a solid golf ball comprising at least one layer of a core, and at least one layer of a cover formed on the core, wherein at least one layer including the inmost layer of the core is formed by vulcanizing a rubber composition comprising a base rubber, a co-crosslinking agent, a vulcanization initiator and a filler, the core has a center hardness in JIS-C hardness of 40 to 60, a surface hardness in JIS-C hardness of 80 to 95 and a hardness difference (B?A) between a hardness in JIS-C hardness at a distance of 5 mm from the center point of the core (B) and the center hardness (A) of not less than 1 to less than 10.

Abstract: A composition comprising: (i) polyethylene, and, based on 100 parts by weight of component (i), (ii) about 0.3 to about 0.6 part by weight of 4,4?-thiobis(2-methyl-6-t-butylphenol); 4,4?-thiobis(2-t-butyl-5-methylphenol); 2,2?-thiobis(6-t-butyl-4-methylphenol); or a mixture of said compounds, and (iii) about 0.4 to about 1 part by weight of a polyethylene glycol having a molecular weight in the range of about 1000 to about 100,000.

Abstract: Novel additive systems for metallocene based filled cable insulation are disclosed. These systems provide excellent protection against thermal degradation, better cure state and reduced dissipation factor after prolonged heat exposure. The additives may contain one or more hindered amine light stabilizers and amine antioxidants.

Abstract: A process for producing a vinyl chloride polymer, the process including the steps of charging into a polymerization vessel, vinyl chloride or a monomer mixture containing vinyl chloride, water, and other materials necessary for polymerization, and polymerizing in an aqueous medium the vinyl chloride or the monomer mixture. An antioxidant is added to a mixture of materials before polymerization, or to a polymerization reaction mixture during polymerization or after polymerization. The antioxidant is added in the state of an aqueous dispersion and by means of a uniaxial eccentric screw pump. The aqueous antioxidant dispersion can be added at a constant rate and stably, without causing any block-up of the interior of the pump even when the polymerization vessel is held at a high internal pressure. Hence, vinyl chloride polymers having less uneven plasticizer absorption and having good anti-initial discoloration properties and thermal stability can be produced stably.

Abstract: The present invention is directed to a golf ball containing a cover layer and a core layer, where the core layer is molded from a scorch retarding composition comprising a scorch retarding peroxide, an elastomeric polymer and a cross-linking agent. Preferably, the scorch retarding peroxide is present in an amount sufficient to delay cross-linking of the elastomeric polymer during core layer formation for a time sufficient to substantially prevent backrinding on the molded core layer. The golf balls of the invention may further comprise at least one intermediate layer interposed between the cover layer and the core layer, at least one of the layers being molded from a scorch retarding composition comprising a scorch retarding peroxide, an elastomeric polymer and a cross-linking agent. A method of making such golf balls is also disclosed.

Abstract: A composition comprising: (a) polyethylene; (b) as a scorch inhibitor, 4,4′-thiobis(2-methyl-6-t-butylphenol); 2,2′ thiobis(6-t-butyl-4-methylphenol); or mixtures thereof; (c) optionally, a cure booster; and (d) an organic peroxide.

Abstract: A composition comprising: (a) polyethylene; (b) as a first scorch inhibitor, a substituted hydroquinone or 4,4′-thiobis(2-t-butyl-5-methyl phenol); (c) as a second scorch inhibitor, distearyl disulfide; and (d) an organic peroxide.

Abstract: A composition comprising: (a) a low density homopolymer of ethylene prepared by a high pressure process; (b) a scorch inhibitor selected from the group consisting of a substituted hydroquinone; 4,4′-thiobis(2-methyl-6-t-butylphenol); 2,2′-thiobis(6-t-butyl-4-methylphenol); and 4,4′-thiobis(2-t-butyl-5-methylphenol) in an amount of about 0.02 to about 0.07 part by weight of scorch inhibitor per 100 parts by weight of homopolymer; (c) a cure booster; and (d) an organic peroxide.

Abstract: A composition comprising:(a) polyolefin;(b) as a scorch inhibitor, 4,4'-thiobis(2-methyl-6-t-butyl phenol); 2,2'-thiobis(6-t-butyl-4-methylphenol); or mixtures thereof;(c) hydroquinone; a substituted hydroquinone; or mixtures thereof in an amount sufficient to control color formation; and(d) an organic peroxide.

Abstract: The present invention concerns polymer blends and processes for the preparation thereof. The present blends contain a) 5 to 95 parts by weight of poly(2,6-dimethyl-1,4-phenylene)ether, b) 95 to 5 parts by weight of a second polymer which is immiscible therewith, and c) a component (a compatibilizer) which enhances the compatibility of the polymers. According to the invention the component enhancing the compatibility of the polymers comprises 0.1 to 10%, preferably about 1.5 to 10%, calculated on basis of the total weight of components a and b, of at least one compound C, which has the formulaA.sub.i --B.sub.j IwhereinA stands for a group which contains at least one ring with 3 to 7 members, capable of forming ring-to-ring interactions with the phenyl rings of poly(2,6-dimethyl-1,4-phenylene)ether,B is a polar group,i is an integer 1 to 20, andj is an integer 0 to 20,whereati+j is greater than or equal to 2,the melting point of compound C is above 50.degree. C. and the boiling point thereof above 200.degree.

Abstract: An antigel agent composed of four types of antioxidants that allows polyamides to be blended with acrylonitrile/butadiene polymers with minimum generation of gels and yields a blend which can be extruded or sheeted to give a uniformed shaped product, for example, sheets and molded articles and is essentially free of plugging the screens of extruder used to extrude hose tube or sheet.

Abstract: The present invention is drawn to a polyurethane-polyester hybrid resin system wherein the components of the system have improved shelf life stability. The resin system comprises an A-Side comprising a multifunctional isocyanate and a free radical initiator. The hybrid resin system also comprises a B-Side comprising a hydroxyl-terminated unsaturated polyester polyol, an ethylenically unsaturated monomer, a polyurethane catalyst, a polymerization inhibitor, and optionally a peroxide promoter, chain extender and filler. The B-Side polymerization inhibitor of the present invention comprises substituted hindered phenol-type compounds with ring substituents producing activated benzylic hydrogens, nitrophenols with or without benzylic-type substituents, naphthoquinones, stabilized radical compounds, and mixtures thereof.

Abstract: Polyphenylene ethers are decolorized by contact in the melt or in solution with a hydroxy compound containing either another hydroxy group or a double or aromatic bond in a specific location in the molecule. Illustrative decolorizing compounds are benzopinacol, benzoin and acetoin.

Abstract: A coating composition useful, for example, in the preparation of automotive gaskets and the like, the composition comprising:(1) a fluoroelastomer;(2) a quaternary ammonium or quaternary phosphonium salt accelerator;(3) a polyol;(4) an acid acceptor;(5) an oil-soluble chelating agent; and(6) an organic solvent.

Abstract: The present invention relates to storage-stable advanced polymaleimide compositions and prepreg products manufactured therefrom comprising (A) an advanced polymaleimide reaction product resulting from the advancement reaction of a polyimide and an alkenyl phenol; and (B) a phenothiazine added to component (A) after advancement.

Abstract: A phenolic resin molding material for molding at lower than normal pressures, comprising as resin components a combination of (A) a crystalline phenolic compound having two or more hydroxyphenyl groups and (B) a compound having two or more hydroxyl groups in the benzene ring, or (A), (B) and (C) a phenolic resin.

Abstract: A coating composition useful, for example, in the preparation of automotive gaskets and the like, the composition comprising:(1) a fluoroelastomer;(2) a quaternary ammonium or quaternary phosphonium salt accelerator;(3) a polyol;(4) an acid acceptor;(5) an oil-soluble chelating agent; and(6) an organic solvent.

Abstract: Double-component acrylic adhesive compositions are disclosed, in which:(a) the adhesive component comprises a mono-functional acrylic monomer, a loro-sulfonated polyolefin and a crosslinker selected from difunctional silicon derivatives;(b) the activating component is a typical aldehyde-amine condensation product.

Abstract: In plastic molding compositions, in particular those based on olefin polymers, which contain phenolic stabilizers and metal ions as catalyst residues, the discoloration at the processing temperature is reduced if they contain triglycerol or ditrimethylolpropane as catalyst deactivators.

Abstract: A novel neopentyl .alpha.-cyanoacrylate composition is provided. The composition which includes neopentyl .alpha.-cyanoacrylate has superior adhesive properties even at high temperatures and is characterized by the absence of the whitening phenomenon.

Abstract: Disclosed is a concrete non-cure material for preventing the surface of cement mortar, which maintains contact with said material, from setting or hardening. This invention also discloses a concrete product or concrete structure with surface decorations produced by affixing the concrete non-cure material to the surface of the decorative material or to the inner surface of a form for a concrete molding and production methods therefor.

Abstract: The present invention provides a thermoplastic composition excellent in heat resistance and water resistance which includes a thermoplastic saturated norbornene polymer which has a number-average molecular weight (Mn) of 50,000-500,000 and a weight-average molecular weight (Mw) of 100,000-2,000,000 which are measured by high performance liquid chromatography, and a molecular weight distribution (Mw/Mn) of 2.2 or more, and a volatile content of at most 0.3% by weight higher. The composition is suitable for optical materials, electroconductive composite materials and optical recording media.

Abstract: Disclosed are novel nitrogen containing heterocyclic compounds and novel vinyl terminated polyurethane/polyamide polymers together with the use of both of these compounds in a novel adhesive and coating composition. The nitrogen containing heterocyclic compounds of the invention contain two vinyl-terminated substituents and at least one carbamylmethyl substituent and have a nucleus selected from melamine, oligomers of melamine, benzoguanamine, and oligomers of benzoguanamine, glycoluril and oligomers of glycoluril. The vinyl terminated polyurethane compounds of the invention have a molecular weight of from about 3000 to about 80000, and contain at least two vinyl end groups.

Abstract: Polyphenylene ether- polyamide compositions having improved resistance to water absorption and swell are provided by incorporating therein a phenolic compound.

Abstract: Polyesters and polyester urethanes are stabilized against discoloration and hydrolytic degradation by inclusion therein of an aromatic carbodiimide and either a benzohydroquinone or a naphthohydroquinone compound, and at the same time, the quantity of isocyanate eliminated from polyester urethanes is considerably reduced.

Abstract: Improved thermal stability and melt stability is demonstrated by stabilized compositions comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon having incorporated therein a stabilizing quantity of a phenolic compound of defined structure.

Abstract: A sulfur curable rubber compound containing a 2,5-diorganohydroquinone. The invention particularly relates to a pneumatic rubber tire having at least one component compound of such rubber compound.

Abstract: Polyphenylene ether-polyamide compositions having improved resistance to water absorption and swell are provided by incorporating therein a phenolic compound.

Abstract: A process and nylon release sheet for manufacturing printed circuit boards from epoxy prepregs is disclosed. In such process layers of the prepregs are separated from one another by a release sheet. The release sheet comprises an aliphatic or aromatic nylon or nylon copolymer which is a condensation product of a dicarboxylic acid and a diamine. The nylon film contains a heat stabilizer and an inorganic particulate antiblock additive, e.g. diatomaceous earth, glass beads, amorphous silica, talc, mica and molybdenum disulphide. The nylon may be toughened by the addition of a phosphorus-containing catalyst or an epoxide.

Abstract: A method for stabilizing an unsaturated organosilicone is disclosed wherein a stabilizing amount of a hydroxylamine compound is added to the organosilicone to prevent thermal polymerization of the latter. The organosilicone may be an alkoxysilane or an organopolysiloxane having in its molecule a reactive organic group bearing at least one radical selected from acryloxy, methacryloxy, acrylamide, methacrylamide, styryl or vinylbenzyl radicals. The hydroxylamine compound may be added either to the organosilicone or during the preparation of the alkoxysilane from its respective reactants.

Abstract: Polymer dihydroxy compounds corresponding to the following formula ##STR1## in whichR.sup.1, R.sup.2, R.sup.3 =H or C.sub.1 -C.sub.4 alkyl,R.sup.4 =H or C.sub.1 -C.sub.4 alkyl,R.sup.5 =--C.sub.6 H.sub.5, --C.sub.6 H.sub.4 CH.sub.3, --CH.dbd.CH.sub.2, or --CO.sub.2 R.sup.7,R.sup.6 =C.sub.1 -C.sub.4 alkyl, aryl, or H,R.sup.7 =C.sub.1 -C.sub.4 alkyl,m=0 or 1,n=5 to 100,q=0 or 1,a process for their production and their use in thermoplastic molding compositions.

Abstract: Stabilized vinyl halide compositions are provided by adding to said vinyl halide compositions an effective amount of a stabilizer having the substituted hydroquinone structure: ##STR1## wherein ##STR2## wherein p is 1 or 2 andq is 0 or 1;provided that p+q=1 or 2.The groups R.sub.1, R.sub.2, R.sub.3, R.sub.4, Z and W are defined hereafter.The stabilizer is added at any point in the process after the desired state of polymerization is achieved.