Abstract: The present invention relates to a pre-accelerated resin composition comprising an unsaturated polyester resin and/or a vinyl ester resin, wherein the composition further comprises a. a copper salt, and b. a compound according to formula (1) in which R can be selected from H, optionally substituted C1-C20 alkyl, optionally substituted C6-C20 aryl, and wherein the copper is present in an amount of more than 0.1 mmol/kg resin.

Abstract: Golf ball 2 has core 4, cover 6 and paint layer 12. The base polymer of the cover 6 includes a thermoplastic polyurethane elastomer. The cover 6 includes one or more kinds of ultraviolet ray absorbing agents. The paint layer 12 includes one or more kinds of ultraviolet ray absorbing agents. There are one or more kinds of ultraviolet ray absorbing agents (common ultraviolet ray absorbing agent) included in the cover 6 and the paint layer 12. The cover 6 includes the common ultraviolet ray absorbing agent in an amount of A parts by weight per 100 parts by weight of the base polymer, and the paint layer 12 includes the common ultraviolet ray absorbing agent in an amount of B parts by weight per 100 parts by weight of the resin component, with the ratio (A/B) being preferably 0.1 or greater and 10 or less. Preferably, the thermoplastic polyurethane elastomer is an MDI based polyurethane elastomer.

Abstract: The present invention relates to emulsifying polymers, in particular to the use of these polymers for the stable emulsification of hydrophobic additives in aqueous concrete plasticizers.

Abstract: A plastic lens which absorbs ultraviolet light having wavelength of about 400 nm and suppresses coloring and a process for producing the lens. A plastic lens may be made from a composition which comprises (A) a lens material monomer comprising diethylene glycol bisallylcarbonate, (B) an organic peroxide-based polymerization initiator, (C) a cobalt compound represented by at least one of CoO.Al2O3 and Co.Al2O4, and (D) at least one ultraviolet light absorbent selected from 2-hydroxy-4-octyloxy-benzophenone, 2,2?,4,4?-tetrahydroxy-4-octyloxybenzophenone and 2,2?,4?-trihydroxy-4-octyloxybenzophenone. A process for producing a plastic lens comprises mixing component (A), component (B), a cobalt fluid comprising component (C) in a dispersant and component (D) and a step of casting the mixed fluid into a mold and polymerizing the fluid to obtain a plastic lens.

Abstract: Compositions comprising one or more olefin polymers functionalized by at least one functionalization agent chosen from carboxylic acids, their esters, their anhydrides and their metal salts and one or more stabilizing agents comprising one or more sterically hindered phenol groups and at most one ester functional group. Process for their preparation and use of these compositions for compatibilizing olefin polymers with polymers, fillers and metal substrates which are incompatible with olefin polymers.

Abstract: An optical material, particularly a plastic lens for spectacles, which absorbs almost all UV rays of up to around 400 nm or so and is not too yellow, is obtained by dipping a poly(thio)urethane material or a diethylene glycol bisallylcarbonate polymer material in a solution containing: (1) a dibenzoylmethane compound of a general formula (1): wherein R and R′ each represent a linear or branched alkyl or alkoxyl group having from 1 to 8 carbon atoms; and n and n′ are the same or different integers, each falling between 0 and 3, or (2) a benzotriazole compound of a general formula (2): wherein R″ represents a hydrogen atom, a chlorine atom or a bromine atom; and m and m′ each indicate 1 or 2.

Abstract: An electrically conductive paint for applying to substrates to make articles of manufacture including EMI/RFI shielded housings of electronic components and printing plates comprises a cross-linked organic resin binder containing cross-linkable functional groups such as OH groups, electrically conductive metallic particles, preferably a mixture of silver flakes and silver-coated copper flakes, a solvent, a cross-linking agent which cross-links with itself and with the functional groups of the organic binder and preferably a catalyst which accelerates cross-linking of the cross-linking agent and organic binder. Using such a paint formulation it has been found that thinner coatings can be used while still exceeding the properties needed for EMI/RFI shielding of housing for electronic components.

Abstract: Blends of polycarbonate with ABS resins are effectively stabilized by a combination of selected non-basic hindered amines containing the 3,3,5,5-tetramethyl-2-oxo-1-piperazinyl moiety and UV absorbers such as benzotriazoles, s-triazines and benzophenones, particularly the benzotriazoles and s-triazines.

Abstract: Novel dibenzoylresorcinol-based compounds are disclosed wherein the dibenzoylresorcinol is bonded to the residue of either an alcohol or a carboxylic acid group, via a methylene carboxylate linking group; and wherein the dibenzoylresorcinol is bonded directly to a substituted or unsubstituted aryl group which does not include a pendent hydroxyl group. The groups attached to the dibenzoylresorcinol may contain a wide variety of functional sites which permit further reaction, e.g., copolymerization. The described compounds are very useful as UV light absorbers and may be used to form improved coating compositions which usually include a transparent, polymeric matrix material. The coating compositions may be applied to various substrates, e.g., thermoplastics, to afford a selection of enhanced properties, such as UV light resistance and abrasion resistance.

Abstract: An undercoating composition layer to intervene between the surface of a substrate, e.g., a silicon wafer, and a photoresist layer to prevent noxious reflection of exposure light on the substrate surface in the photolithographic patterning work for the manufacture of semiconductor devices comprising: (A) a nitrogen-containing organic compound, as a crosslinking agent, having, in a molecule, at least two amino groups each substituted by at least one substituent selected from the group consisting of hydroxyalkyl groups and alkoxyalkyl groups; and (B) a homopolymer of or a copolymer of a mixture of monomers of which one is a (meth)acrylic acid ester of an aromatic hydroxyl compound selected from the group consisting of bisphenylsulfone compounds having at least one hydroxyl group in a molecule and benzophenone compounds having at least one hydroxyl group in a molecule in a specified proportion.

Abstract: A polycarbonate substrate coated with an acrylic coating containing at least one polybenzoylresorcinol, and optionally a silicone hardcoat on the acrylic coating, wherein said at least one polybenzoylresorcinol has the formula ##STR1## wherein each A is independently a substituted or unsubstituted monocyclic aromatic radical wherein any substituents are hydrogen, halogen, alkoxy, C.sub.1-8 alkyl, or hydroxy, and R is hydrogen or a linear or branched aliphatic radical having less that about 10 carbon atoms.

Abstract: The ultraviolet- and infrared-ray absorbing polymer composition contains 0.01-1 part by weight of an organic ultraviolet-ray absorbent and 0.001-2 parts by weight of an organic infrared-ray absorbent onto 100 parts by weight of a polycarbonate resin which implies 10-100% by weight of copolyestercarbonate, manufactured by heat-molding process at 210.degree.-245.degree. C. from a mixture of those components. This polymer composition is manufactured easily by an ordinary screw extruder or injection molding machine without strict control of heat-molding temperature, at a high non-defective ratio, said product having a stable effect in absorbing ultraviolet rays and infrared rays, while allowing transmittance of visible radiation rays, thus making it suitable for a wide variety of uses.

Abstract: A fluorine-containing benzophenone derivative of the formula (1), (2) or (3):.PHI..sup.1 (--X.sup.1 --Q.sup.1 --R.sub.f.sup.1).sub.n (1).PHI..sup.2 --X.sup.2 --Q.sup.2 --R.sub.f.sup.2 --Q.sup.3 --X.sup.3 --.PHI..sup.3 (2).PHI..sup.4 --X.sup.4 --Q.sub.f --X.sup.5 --.PHI..sup.5 (3)wherein .PHI..sup.1 is a 2-hydroxybenzophenone structure of the formula ka-1: ##STR1## (wherein Y is a hydrogen atom or a hydroxyl group, each of k and m indicates the number of bond sites, k is an integer of from 0 to 3, and m is an integer of from 0 to 3, provided that 1.ltoreq.(k+m).ltoreq.4), n corresponds to (k+m) and is an integer of from 1 to 4, each of .PHI..sup.2, .PHI..sup.3, .PHI..sup.4 and .PHI..sup.5 is a 2-hydroxybenzophenone structure of the formula ka-1 wherein (k+m) is 1, each of X.sup.1, X.sup.2, X.sup.3, X.sup.4 and X.sup.5 is a single bond or an oxygen atom, Q.sup.1 is a single bond or a bivalent linking group having a carbon atom directly bonded to X.sup.1, each of Q.sup.2 and Q.sup.

Abstract: The present invention relates to new hydroxybenzophenones containing an ester functional group and to the use of these compounds as UV absorbers in organic polymers. More precisely, the new hydroxybenzophenones are 1,3-di(4-benzoyl-3-hydroxyphenoxy)-2-propanol carboxylates which preferably have a molecular mass of at least 500.These benzophenones can be employed as anti-UV agents in organic polymers, either by themselves or jointly with known benzophenones of lower molecular mass, such as 2-hydroxy-4-alkoxybenzophenones.

Abstract: A syndiotactic polypropylene resin composition comprising a polypropylene having a substantially syndiotactic structure and a nucleating agent. The syndiotactic polypropylene may be a homopolymer of the propylene, a copolymer of the propylene and a smaller amount of another olefin or a mixture of the above-mentioned (co)polymer and an isotactic polypropylene. The resin composition preferably has a higher crystallization temperature than a polypropylene containing no nucleating agent by 5.degree. C. or more, as measurement is made by a differential scanning thermal analysis.

Abstract: A weather resistant resin composition comprising a resin, a UV light absorber and a hypophosphite, which has improved weather resistance.

Abstract: Disclosed is a coating composition comprising (A) 10 to 70 parts by weight of a poly(meth)acrylate of mono- or polypentaerythritol, (B) 5 to 50 parts by weight of a urethane poly(meth)acrylate having at least two unsaturated double bonds in the molecule, (C) 5 to 50 parts by weight of a poly[(meth)acryloyloxyalkyl] (iso)cyanurate, (D) 2 to 30 parts by weight of an ultraviolet absorber, (E) 0.1 to 10 parts by weight of a photopolymerization initiator, and (F) 0.1 to 5 parts by weight of a hindered amine type light stabilizer, provided that the combined amount of components (A) to (F) is 100 parts by weight. This coating composition can form a crosslinked and cured film having excellent abrasion resistance, surface smoothness, thermal resistance, chemical resistance, durability, weather resistance and adhesion to the substrate.

Abstract: Moldable weather-resistant polyacetal resin compositions exhibiting low surface gloss characteristics are a melt-blend of (A) 100 parts by weight of a polyacetal base resin, (B) between 0.01 to 5 parts by weight of a weather stabilizer, and (C) a surface gloss reducing effective amount of between 1 to 50 parts by weight of a core-shell polymer having a rubbery polymer as the core and a glassy vinyl copolymer having at least one oxygenic polar group as the shell. Molded articles formed of such polyacetal compositions exhibit weather-resistance properties and a reduced surface gloss of at least 35%. Moreover, the ability to imprint a grain-like appearance on the surfaces of the molded articles is enhanced.

Abstract: The present invention is directed to the use of polymer blend films consisting of polycarbonate and polyalkylene terephthalate supports for diagnostic test strips.

Abstract: A weather-resistant polyacetal resin composition which comprises(A) 100 part by weight of a polyacetal resin,(B) 0.01 to 5 parts by weight of a weathering (light) stabilizer and(C) 0.5 to 60 parts by weight of a graft copolymer comprising (a) an olefin (co)polymer and (b) one or more vinyl (co)polymers which are chemically bonded to each other to form a branched or crosslinked structure.The surface of a molded article made from the composition is excellent in weathering resistance, so that it undergoes less crack and reduced discoloration.

Abstract: Polyvinyl chloride compositions as well as flexible sheets and swimming pool liners of such compositions which contain significant quantities of an ultra high molecular weight polyvinyl chloride resin together with a heat stabilizer, plasticizer and optional additives are disclosed. In preferred compositions: the PVC resin is a mixture of high molecular weight and ultra high molecular weight PVC: the heat stabilizer is a mixed zinc-barium-alkyl phosphite stabilizer; and the composition contains 2-hydroxy-4-(2-hydroxyethoxy) benzophenone as an ultraviolet light absorber.

Abstract: Tannin block properties in surface coating compositions are increased by admixing a sol or gel containing one or more salts with a polymer and a surface coating paste stock. A novel surface coating composition containing a polymer and salt homogeneously distributed in the composition is prepared from the sol or gel and has increased tannin block properties compared to a composition without the admixed sol or gel.

Abstract: Ultra-violet screening compounds have been combined with hydrophobic fluid and solid-repellent compounds to provide a spray, and ultimately a thin solid adherent layering, deposit or coating for fabrics and the like that simultaneously imparts both fade or photodegradiation-resisting properties, and fluid and soil repellent properties.

Abstract: A cycloaliphatic epoxy compound in combination with a 2-hydroxy-substituted benzophenone compound and a polyalkyl-substituted dipiperidine compound provides a UV stabilizer that exhibits synergistic behavior. The compounds can be formulated into a composition that is coated on, or impregnated into, the surface of a plastic article or, alternatively, they can be incorporated into a thermoplastic composition which can be thereafter molded into a shaped article. The stabilizer combination succeeds in upgrading the resistance of polyphenylene ether resins and blends against the photo-deteriorative effects of sunlight and bright indoor light, for example, fluorescent lighting.

Abstract: A primer composition dilluted with a suitable organic solvent comprising (A) an organic copolymer comprising an alkoxysilylated monomer, vinyl acetate and other monomers copolymerizable therewith, (B) a polyalkyl (meth)acrylate, (C) a crosslinking agent for said copolymer (A), and (D) an ultraviolet absorber. This primer composition is a very effective primer in forming an organopolysiloxane coating layer excellent in adhesion, endurance, weathering resistance of the surface of a molded article of a thermoplastic resin.

Abstract: A thermoplastic resin composition comprising 0.01 to 10 parts by weight of at least one ultraviolet ray absorbent having a peak absorption wavelength at 240-300 nm in the range of 240-400 nm and 100 parts by weight of methacrylimide group-containing polymer containing at least 5% by weight of imide ring structural unit expressed by the following structural formula is disclosed: ##STR1## (wherein R.sub.1 is a hydrogen atom, or a substituted or non-substituted alkyl group having 1-20 carbon atoms, cycloalkyl group, aryl group, alkalyl group, alalkyl group, or allyl group.)This composition has an improved weather durability and thermal resistance as well as light transmittance.

Abstract: Polyolefins are stabilized against the harmful effects of U.V.-light by incorporating therein certain organosulfides. The organosulfides may be used alone or in synergistic combination with two classes of known light stabilizers, namely the benzophenones and the esters of aromatic acids.

Abstract: Polyvinyl chloride resin stabilizer compositions are provided, comprising a 2,2,6,6-tetramethyl piperidinyl compound and an ammonium or metal perchlorate; and also stabilized polyvinyl chloride resin compositions containing such stabilizers, and optionally including a plasticizer, and particularly as molded articles with polyurethane foam backing.

Abstract: Aqueous-based, film-forming and ambient-temperature autoxidisably crosslinkable coating composition comprising an aqueous latex of a film-forming copolymer having residual unsaturation for autoxidative cross-linking puuposes, an autoxidation catalyst, preferably a drier salt, and optionally a multi-functional crosslinking material, wherein the copolymer has a gel fraction of at least 5% by weight which has been formed by the early addition of a multi-functional comonomer in the copolymerization, with a low reactivity multi-functional comonomer being added late in the copolymerization to provide the residual unsaturation.

Abstract: Polyphenylene sulfide resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol) having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.

Abstract: A cycloaliphatic epoxy compound in combination with a 2-hydroxy-substituted benzophenone compound and a polyalkyl-substituted dipiperidine compound provides a UV stabilizer that exhibits synergistic behavior. The compounds can be formulated into a composition that is coated on, or impregnated into, the surface of a plastic article or, alternatively, they can be incorporated into a thermoplastic composition which can be thereafter molded into a shaped article. The stabilizer combination succeeds in upgrading the resistance of polyphenylene ether resins and blends against the photo-deteriorative effects of sunlight and bright indoor light, for example, fluorescent lighting.

Abstract: The ultraviolet light stability of polyphenylene ether resins and blends is improved by the addition of small amounts of certain 2-hydroxy-4-hydroxylated alkyl ether benzophenones and hindered amines in combination. The benzophenones are specifically characterized by an alkoxy substituent which contains one or more pendent hydroxy groups. Comparison with the closest prior art shows better UV performance. Plasticized, flame retardant and filled versions are also disclosed.

Abstract: Polycarbonate resin compositions are provided having improved light stability and comprising an alkylidene bis(benzotriazolyl phenol)having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about eleven carbon atoms;R.sub.2 is selected from the group consisting of alkyl having from one to about twelve carbon atoms; and arylalkyl having from seven to about eighteen carbon atoms; andX is selected from the group consisting of hydrogen; halogen; alkyl having from one to about twelve carbon atoms; aryl alkyl having from seven to about eighteen carbon atoms; alkoxy having from one to about twelve carbon atoms; phenoxy; arylalkoxy having from seven to about eighteen carbon atoms; and phenyl.

Abstract: Bis-(2,2,6,6-tetramethyl-piperidyl)diimides are provided, having the formula: ##STR1## in which R is selected from the group consisting of hydrogen; oxyl; alkyl and alkenyl having from one to about eighteen carbon atoms; epoxy and hydroxyalkyl having from two to about eight carbon atoms; acyl having from two to about eight carbon atoms; and phenalkyl having from seven to about twelve carbon atoms; and Z is a tetravalent aliphatic or cycloaliphatic hydrocarbon group having from two to about eighteen carbon atoms; and stabilizer and synthetic polymer compositions containing such diimides having improved resistance to deterioration when exposed to light.

Abstract: A polyacetal resin composition comprises a polyacetal resin as the matrix, (A) 0.01 to 2.0 percent by weight of a stabilizer selected from a benzotriazole compound, a benzophenone compound and an aromatic benzoate compound and (B) 0.01 to 2.0 percent by weight of a hindered amine compound and is improved in whetherability.

Abstract: A coating composition useful as an exterior for automobiles and trucks and as a refinish composition containing a film forming binder and a carrier for the binder; wherein the binder contains(1) a reactive component of the formula ##STR1## where R is a divalent or trivalent aliphatic or cycloaliphatic group,R.sup.1 is an alkyl group having 1-4 carbon atomsn is 2-3(2) a hydroxy containing acrylic polymer having drying oil fatty acid moieties and a hydroxyl number of 20-500 and(3) an organo metallic alkylate selected from the group of an aluminum, titanium, zirconium alkylate, or mixtures thereof.The composition can be applied by conventional techniques such as spraying and cures at ambient temperatures or can be baked at relatively low temperatures.

Abstract: A coating composition containing a film forming binder and a carrier for the binder; wherein the binder consists essentially of(1) a reactive polyurethane of the formula ##STR1## where R is a divalent or trivalent aliphatic or cycloaliphatic group,R.sup.1 is an alkyl group having 1-4 carbon atoms, n is 2-3;(2) a hydroxy containing polymer having a hydroxyl number of 50-200 and having pendent ester groups;(3) an organo metallic alkylate catalyst selected from the group of an aluminum alkylate, zirconium alkylate, titanium alkylate or mixtures thereof.The composition can be applied by conventional techniques such as spraying and can be cured at relatively low baking temperatures.

Abstract: A light stabilizer for recording media subjected to exposure with radiant energy which comprises between about 10 and about 40 parts by weight of a vinyl ether/maleic acid ester copolymer and one part by weight of a hydroxylated benzophenone dissolved in an inert solvent to provide a clear solution and the process of coating said exposed recording media with said composition to a thickness of from about 5 to about 30 micrometers.

Abstract: The object of the present invention are new thermoset resins having quickened curing, a process for their preparation, and their applications. The resins according to the invention consist, at least in part, of the products resulting from the polycondensation of one or more pyridine derivatives containing at least two methyl groups in the 2, 4 or 6 positions, with one or more aromatic dialdehydes, and the addition of one or more additives consisting of phenol compounds. These resins are used to the fabrication of composite materials.

Abstract: The present invention is directed to a process for the preparation of a segmented, aliphatic-aromatic polyether-copolycarbonate containing structural units conforming to ##STR1## wherein --D-- is a diphenolate radical and units conforming to ##STR2## wherein --O--Polyether--O-- is an aliphatic polyether-diolate radical, by the phase boundary process in which aliphatic polyether diol and a mixture of dihydroxy compounds are reacted with a carbonic acid halide which is employed in molar excess in relation to the dihydroxy compounds and in which the aqueous phase is kept at a pH value of at least 13 and where the polycondensation reaction is carried out in a reactor by addition of an amine catalyst.The invention is further directed to the polyether polycarbonate which is obtained by the process and to the preparation of membranes from said polyether copolycarbonate.

Abstract: The ultraviolet light stability of polyphenylene ether resins and blends is improved by the addition of small amounts of ortho-hydroxy-substituted alkoxybenzophenones and tetraalkyl dipiperidinyl aliphatic diesters in combination, as described. Plasticized, flame retardant and mineral filled versions are also disclosed.

Abstract: Disclosed are stabilized polyester compositions having significantly improved weatherability, said polyesters consisting of homopolyesters derived from a dicarboxylic acid component wherein at least a major portion of which is 1,4-cyclohexanedicarboxylic acid (or ester) having a trans isomer content of at least 65% and a glycol component wherein at least a major portion of which is 2,2,4,4-tetramethyl-1,3-cyclobutanediol and copolyesters thereof with modifying aliphatic glycols and/or aliphatic dicarboxylic acids, said polyesters being stabilized with the combination of at least one ultraviolet light stabilizing compound compatible with said polyester and at least one hindered amine light stabilizer having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.

Abstract: Disclosed are stabilized polyester compositions having significantly improved weatherability. These polyesters consist of copolyesterethers derived from a dicarboxylic acid component comprising about 80-100 mole % 1,4-cyclohexanedicarboxylic acid having a trans isomer content of at least 70% and about 0-20 mole % of a second dicarboxylic acid and a glycol component comprising about 70-95 mole % 1,4-cyclohexanedimethanol and about 5-30 mole % of a polyalkylene ether glycol having a molecular weight of about 600 to about 3000. The copolyesterether compositions further comprise a stabilizing effective amount of the combination of (1) at least one hindered phenolic antioxidant, (2) at least one ultraviolet light stabilizing compound compatible with said copolyesterether and (3) at least one hindered amine light stabilizing compound having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.

Abstract: The present invention provides an aqueous dispersion for the production of corrosion- and weather-resistant coatings on work materials, especially on synthetic fibre fabrics, said aqueous dispersion comprising:20 to 50% by weight polyvinylidene fluoride,20 to 50% by weight water,1.5 to 25% by weight of an acrylic co-polymer,1.5 to 5% by weight of a pigment and/or a filling material,0.05 to 0.75% by weight, referred to the polyvinylidene fluoride, of a light-protection agent and4 to 20% by weight of a low boiling alcohol or of a mixture of a low boiling alcohol and of a high boiling solvent.The present invention also provides a process for the production of corrosion- and weather-resistant coatings on work materials, wherein the above dispersion is applied to a work material, followed by heating in.

Abstract: A polyphenylene ether resin composition comprising(A) a polyphenylene ether resin,(B) at least one compound selected from the group consisting of 2-(o-hydroxyphenyl)benzotriazoles represented by the following formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and each represents a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group, an alkoxy group, an alkoxycarbonylalkyl group, an aryl group or an aralkyl group, and X represents a halogen atom,and 2-hydroxybenzophenones represented by the following formula (II) ##STR2## wherein R.sup.5 represents a hydrogen atom, a hydroxyl group or an alkoxy group, R.sup.6 represents a hydrogen atom or a hydroxyl group, R.sup.7 represents a hydrogen atom or a sulfonic acid group, and R.sup.8 represents a hydrogen atom, an alkyl group or an aromatic acyl group,(C) an organic phosphite, and(D) a sterically hindered phenol.

Abstract: Ester-carbonate interchange in blends of aromatic polycarbonates and poly(alkylene dicarboxylates) is inhibited by adding thereto an ortho-disubstituted hydroxyaromatic compound of the formula ##STR1## wherein X is hydrogen, lower alkyl or lower aryl.

Abstract: Heat curable hard coat compositions are provided of aqueous colloidal silica and copolymer of an alkylacrylate and a polyalkoxysilylacrylate or a mixture of an alkylacrylate-acrylic acid copolymer and an epoxyalkoxysilane. The heat curable hardcoat composition can be applied onto various substrates, for example, a polycarbonate substrate, and thereafter heat cured to produce coated articles having adherent and abrasion resistant coatings.

Abstract: A method of preparing phosphor suspensions for coating fluorescent lamps wherein the temporary organic binder is an association compound of purified carboxy methyl cellulose and polyethylene oxide in such proportions as to avoid the gelation caused by ionizable phosphors releasing multivalent cations.