Abstract: Acrylate copolymers which contain groups are reacted with a 2-hydroxphenylbenzotriazole which contains a carboxyl group. A permanent light stabilization of the acrylate copolymers is thereby achieved. The modified acrylate resins so obtained are particularly suitable for use as binders for coating materials.

Abstract: The present invention is directed to coating compositions comprising a) polyisocyanates having a content of isocyanate groups blocked by blocking agents of about 10 to 35% by weight and containing about 0.5 to 10.0% by weight of structural units corresponding to the formula--CO--NH--NH--CO--and b) polyhydroxy polyacrylates in an amount sufficient to provide an equivalent ratio of blocked isocyanate groups to hydroxyl groups of about 0.5:1.0 to 2.0:1.0.The present invention is also directed to the coatings prepared from these coating compositions.Finally, the present invention is directed to blocked polyisocyanates which have a content of isocyanate groups blocked by blocking agents of about 10 to 35% by weight and about 0.5 to 10.0% by weight (calculated as --CO--NH--NH--CO--, MW 86) of structural units corresponding to the formula--CO--NH--NH--CO--Q--whereinQ represents NH--NH--CO-- or the group R--(CO--NH--NH--CO--).sub.nR is an n+1 valent hydrocarbon radical andn has a value from 1 to 3.

Abstract: The present invention is directed to aqueous compositions of organic diazo compounds which are capable of being readily handled in commercial applications and to the surface modification of polymeric substrates utilizing the subject diazo composition.

Abstract: A process is provided for preparing a terminally functionalized polymer from a living polymer obtained by anionic polymerization of a diene monomer or mixture of a diene monomer and a vinyl aromatic hydrocarbon monomer which comprises reacting the living polymer with a compound having the formula: ##STR1## wherein R.sub.1 and R.sub.2 are selected from the group consisting of H, alkyl, cycloalkyl, aryl, dialkylaminoaryl, aralkyl, and aprotic O, N and S- containing alkyl, cycloalkyl, aryl and aralkyl groups; wherein R.sub.3 is selected from the group consisting of alkyl, cycloalkyl, aryl, dialkylaminoaryl, aralkyl, and aprotic O, N and S- containing alkyl, cycloalkyl, aryl and aralkyl groups; with the proviso that at least one of the R.sub.1, R.sub.2 and R.sub.3 groups must be a dialkylaminoaryl group and that not all of the R.sub.1, R.sub.2 and R.sub.3 groups can be aryl groups.

Abstract: This invention relates to a process for making nitrile rubber characterized by being essentially gel-free and at least about 90% saturated. The process comprising reacting an ethylenically unsaturated polymer in latex from, hydrazine, and an oxidant, followed by coagulation and filtration in order to isolate the reduced rubber. The process utilizes a reaction mixture containing a high molar ratio of hydrazine to unsaturated polymer.

Abstract: A concrete roof tile is coated with an unfilled or aggregate- and/or pigment-filled film of a copolymer containing (a) from 0.03 to 2% by weight of tin in the form of a polymerizable organotin compound (b) from 0.5 to 5% by weight of (meth)acrylic acid, (meth)acrylamide and/or vinylsulfonic acid and (c) from 0.1 to 5% by weight of carbonyl-containing monomers crosslinked with certain dicarboxodihydrazides, besides (d) at least two (meth)acrylic esters of C.sub.1 -C.sub.8 alkanols and/or styrene as copolymerized units in such an amount and such mixing ratios that the copolymer has a glass transition temperature of -15 to +10.degree. C. prior to crosslinking.

Abstract: Polymeric flame retardants comprise halognenated aromatic compounds having acylamino functional groups which are chemically bonded to cyclic imide-containing or imide-forming polymers or copolymers. The polymeric flame retardants are prepared by the reaction of halogenated aromatics containing a reactive hydroazido group with some or all of the anhydride groups of an cyclic alpha, beta-unsaturated dicarboxylic acid anhydride polymer or copolymer to form pendant halogenated-aromatic-substituted imide or amic acid groups. In addition, polymeric flame retardants are used to render thermoplastic resin less flammable under conditions which promote combustion. Novel flame retardant hydrazides are disclosed.

Abstract: The invention provides a method for making optionally active polymers having a carbon-to-carbon backbone chain and pendant "transducer" groups having an azo linkage which involves azo-coupling, in homogeneous solution, a carbon-to-carbon backbone polymer having pendant groups terminating in an aromatic group with an aromatic diazonium salt, and recovering the resultant reaction product.

Abstract: A polymer-bound linkable dye comprisinga) a water-soluble polymer backbone,b) a dye covalently bound thereto, andc) functional groups which enable the polymer-dye to link covalently with biological materials,in which the water-soluble polymer backbone is a copolymer which contains arcylamide, methacrylamide, N-C.sub.1 -C.sub.4 alkyl(meth)acrylamide, N,N-C.sub.1 -C.sub.4 dialkylacrylamide, N-vinylpyrrolidone, N-vinylpiperidone, N-vinylcaprolactam, N-vinylformamide, N-vinylacetamide, N-vinyl-N-methylacetamide, N-vinyl-O-methylurethane, ethene or vinylmethylether as nonionic monomer blocks. The polymer-bound dye can be linked to a biologically active material such as an antibody or nucleic acid and used analytically.

Abstract: This invention provides a pressure sensitive adhesive composition comprising an acrylic copolymer component (A) which is at least in part an acetoacetyl group-containing acrylic copolymer and at least one curing component (B) selected from the class consisting of isocyanate compounds, epoxy compounds, aldehyde compounds, non-amino resin amine compounds, metal salts, metal alkoxides, metal chelate compounds, ammonium salts and hydrazine compounds.This adhesive composition is well-balanced in the triad of tack, adhesion, cohesion in adhesion technology and can be advantageously used in various applications such as adhesive tapes and labels.

Abstract: Polymer bound antioxidants are provided in which the antioxidant stabilizer groups are chemically bound to polymers or copolymers by an acylaminoimide or diacylhydrazide function. The polymer bound antioxidants are prepared by reacting hydrazido substituted antioxidants with some or all of the anhydride groups of anhydride containing polymers or copolymers. The concentration of the stabilizers bound to the polymer may be readily varied depending upon the particular end-use of said polymer. Polymer with high concentrations of bound antioxidants can be used as masterbatches to stabilize other polymer systems.

Abstract: Hydrazide functionalized benzotrialzole and oxanilide ultraviolet absorbers (Formulas I and II) useful for stabilizing coreactive or inert polymeric compositions and novel intermediates (Formula III used to make certain types of compounds of Formula I) are disclosed and have the general formulas: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, X, Y, all substituents thereof, and n are set forth in the Summary of the Invention.

Abstract: Molded articles formed of polystyrene or other polymers containing an aromatic moiety can be derivatized on the surface of the article by subjecting the molded article to a chemical reaction wherein the reaction media utilizes tetramethylsulfone as the reactant solvent and a suitable substituent group which is substituted on to the aromatic moiety of the polystyrene or other polymer by electrophilic substitution. By choosing the substituent group to further include a leaving group, further substitution of the primary substituent can be effected normally by nucleophilic substitution reaction. In this way, biologically important molecules can be attached to a polystyrene or other aromatic containing polymer without effecting certain properties of the molded article such as its optical or spectroscopic clarity.

Abstract: Acrylic coating resins with attached light stabilizer functional groups are provided.The polymer bound light stabilizer coating resins are prepared by reacting light stabilizer hydrazides, LS--C(.dbd.O)--NR.sup.3 --NH.sub.2, with an acrylic prepolymer containing at least two different types of reactive functional groups, one of which is a hydroxyalkyl ester group and the other is carboxyl, anhydride, epoxy or isocyanate. LS is a light stabilizer moiety, and R.sup.3 is hydrogen, primary alkyl of 1 to 8 carbons, secondary alkyl of 3 to 8 carbons, aralkyl of 7 to 12 carbons or cycloalkyl of 5 to 12 carbons. The reaction may be carried out in an inert solvent or in the bulk state.The acrylic resins so produced with chemically bound light stabilizer groups are particularly useful in the stabilization of coatings. Enamel or lacquer coatings containing the polymer bound light stabilizer resins exhibit outstanding weatherability and durability.

Abstract: Polymer bound hindered amine light stabilizers are prepared by reacting hindered amine light stabilizers containing reactive hydrazide functionalities with anhydride containing polymers or copolymers. The reactions may be carried out in an inert solvent or in a melt blending step. The polymer bound hindered amine light stabilizers are useful alone or may also be used to stabilize other polymers, copolymers or polymer blends against the deleterious effects of heat and/or light.

Abstract: Aqueous coating composition having a basis of a dispersion of an addition polymer (acting as binder), particularly as a base coat which is to be covered with a clear coat. To obtain layers having improved mechanical properties use is made of an addition polymeer which is obtained in two or more steps by emulsion polymerization. In a first step copolymerization is effected of 60-95 parts b.w., based on 100 parts b.w. of addition polymer, of a monomer mixture comprising (A) 65-100 mol % of a mixture of 60-100 mole % of a (cyclo)alkyl (meth)acrylate, in which the (cyclo)alkyl group contains 4-12 C-atoms, and 0-40 mole % of a di(cyclo)alkyl maleate and/or a di(cyclo)alkyl fumarate, in which the (cyclo)alkyl groups contain 4-12 C-atoms, and 0-35 mole % of another, copolymerizable, monoalkylenically unsaturated monomer, and in a subsequent step of 5-40 parts b.w., based on 100 parts b.w.

Abstract: A process for preparing an azodicarboxylate composition by chemically bonding dialkyl azodicarboxylates onto an insoluble solid polymer support. This process comprises the immobilization of hydrazodicarboxylates onto an insoluble solid polymer support and oxidizing the hydrazodicarboxylates to azodicarboxylates. The azodicarboxylate-polymer composition may be used in Mitsunobu-type reactions. After use in Mitsunobu-type reactions, the azodicarboxylate-polymer composition is recoverable and may be reused.

Abstract: This invention relates to novel reactive amino or hydrazino peroxides (hereinafter generally referred to as "AHP's") and derivatives all having a Structure A:(P--R11--X--(--NH--).sub.x --R22--).sub.y --Q].sub.z Ain which the definitions of P, R11, R22, X, Q and x, y and z are given in the Summary of The Invention section, for example, 4,4-di-(t-butylperoxy)pentanohydrazide (I-1), and the use of these novel compounds in curing unsaturated polyester resins, in initiating polymerization of ethylenically unsaturated monomers, for modifying rheology, for crosslinking and curing olefin polymers and elastomers, for producing novel graft and block copolymers, and for producing novel polymers with covalently bound performance additive functions.

Abstract: A liquid crystalline copolymer contains a comonomer to which a radical ##STR1## is bonded, where X is a chemical bond, O or NR.sup.1, Y is a chemical bond or --CO--, R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl and A is a linear or branched C.sub.2 -C.sub.20 -alkylene group which may be interrupted by --O-- or ##STR2## The liquid crystalline copolymers have very good lightfastness, high dichroism and a high absorption.

Abstract: Compositions comprising a free radical sensitive compound and a thermally stable substituted diazene which upon exposure to electromagnetic radiation is convertible to a thermally unstable substituted diazene may be formed and processed utilizing thermally intense techniques and thereafter the free radically initiated changes initiated by exposing the substituted diazene to light and heat.

Abstract: Aqueous polymer dispersions which have a long shelf life are obtainable by dispersing a mixture of from 15 to 70% by weight of a copolymer (A) of(I) from 1.5 to 15% by weight of copolymerizable compounds of 3 to 10 carbon atoms which contain a carboxyl or carboxylic anhydride group,(II) from 65 to 98.5% by weight of C.sub.1 -C.sub.20 -alkyl acrylates or methacrylates,(III) from 0 to 20% by weight of vinylaromatics,(IV) from 0 to 20% by weight of copolymerizable carbonyl compounds and(V) from 0 to 10% by weight of further copolymerizable organic compounds not stated under (I) to (IV), and from 30to 85% by weight of a copolymer (B) of from 60 to 100% by weight of the monomers (II) and from 0 to 40% by weight of the monomers (III) to (V), with the proviso that the copolymers (A) and (B) together contain, as components, more than 65% by weight of alkyl (meth)acrylates (II) whose homopolymers have glass transition temperatures of less than 0.degree. C.

Abstract: A fluorine-containing elastomer composition comprising a fluorine-containing elastomer, at least one of oxide and hydroxide of divalent metal, a polyhydroxyaromatic compound, and a quaternary ammonium salt compound represented by the general formula: ##STR1## wherein R' is a piperidino or a pyrrolidinyl radical, and if desired, further containing 1,8-diazabicyclo-[5,4,0]-undec-7-ene or 1,5-diazabicyclo[4,3,0]-non-5-ene, has good storage stability as green elastomer composition and gives distinguished physical properties to the vulcanized products.

Abstract: Acrylic coating resins with attached light stabilizer functional groups are provided.The polymer bound light stabilizer coating resins are prepared by reacting light stabilizer hydrazides, LS--C(.dbd.0)--NR.sup.3 --NH.sub.2, with an acrylic prepolymer containing at least two different types of reactive functional groups, one of which is a hydroxyalkyl ester group and the other is carboxyl, anhydride, epoxy or isocyanate. LS is a light stabilizer moiety, and R.sup.3 is hydrogen, primary alkyl of 1 to 8 carbons, secondary alkyl of 3 to 8 carbons, aralkyl of 7 to 12 carbons or cycloalkyl of 5 to 12 carbons. The reaction may be carried out in an inert solvent or in the bulk state.The acrylic resins so produced with chemically bound light stabilizer groups are particularly useful in the stabilization of coatings. Enamel or lacquer coatings containing the polymer bound light stabilizer regins exhibit outstanding weatherability and durability.

Abstract: A reversible thermosensitive recording material is disclosed, which comprises (a) a support, and (b) a reversible thermosensitive recording layer formed thereon, which comprises as the main components a matrix resin, at least one higher monocarboxylic fatty acid having 16 or more carbon atoms, and at least one aliphatic saturated dicarboxylic acid or a derivative thereof, with the ratio by weight of the amount of the higher monocarboxylic fatty acid to the amount of the aliphatic saturated dicarboxylic acid or a derivative thereof being in the range of (95:5) to (20:80).

Abstract: Copolymers of monoalkyl maleates and vinyl alkyl ethers are prepared by free radical copolymerization of maleic anhydride and a vinyl alkyl ether followed by reaction with an alkanol, by a process in which the vinyl alkyl ether component is present in excess in the reaction mixture in each phase of the polymerization, the free radical copolymerization is carried out in acetone and the acetone is removed by distillation during or after ester formation at up to 70.degree. C.

Abstract: A composition and process for making an alternating copolymerization of acceptor monomers such as acrylic acid and derivatives thereof and donor monomers containing free amine groups therein such as an aminostyrene compound. The free amine groups are initially protected by conversion to an imide derivative such as phthalimide, or the like, and then reacted with the acceptor monomers. After copolymerization, the free amine is regenerated. The alternating copolymerization reaction is usually carried out in the presence of Lewis acids which act as complexing agents. The alternating copolymers of the present invention are useful as antistatic agents or as thickening agents as in oil recovery.

Abstract: An ammonium slat represented by the formula ##STR1## wherein X represents aliphatic group or alicyclic group, each of which may contain halogen, oxygen, nitrogen or sulfur in the group;n is an integer of 1 or more; and R and R' each independently represent hydrogen or an alkyl having 1 to 12 carbon atoms, and may conjointly form a ring;is useful as a modifier for rubber, particularly to improve dynamic properties of rubber. The process for producing the ammonium salt is also disclosed.

Abstract: Ultraviolet light stabilizers are chemically bound to anhydride containing polymers or copolymers. The polymeric stabilizers are prepared by the reaction of primary amino or hydrazido-substituted UV absorbers with some or all of the anhydride groups of the polymer or copolymer to form pendant stabilizer substituted imide or amic acid groups. The polymer bound stabilizers are not lost from the polymer system by volatilization, migration, or extraction, even at high temperature. The polymer of this invention may be used as they are or as concentrates to stabilize other polymer systems.

Abstract: Polymer bound stabilizer compounds are provided in which two or more different classes of stabilizers are chemically bound to anhydride containing polymers or copolymers. The polymeric stabilizers are prepared by the reaction of primary amino or hydrazido substituted stabilizers (i.e., antioxidants, light stabilizers, etc.) with some or all of the anhydride groups of the polymer or copolymer to form pendant stabilizer substituted imide or amic acid groups. The polymer bound stabilizers are not lost from the polymer system by volatilization, migration or extraction, even at high temperatures. The polymer bound stabilizer compounds may be used as concentrates to stabilize other polymer systems.

Abstract: Polymer bound hindered amine light stabilizers are prepared by reacting hindered amine light stabilizers containing reactive hydrazide functionalities with anhydride containing polymers or copolymers. The reactions may be carried out in an inert solvent or in a melt blending step. The polymer bound hindered amine light stabilizers are useful alone or may also be used to stabilize other polymers, copolymers or polymer blends against the deleterious effects of heat and/or light.

Abstract: Polymer bound antioxidants are provided in which the antioxidant stabilizer groups are chemically bound to polymers or copolymers by an acylaminoimide or diacylhydrazide function. The polymer bound antioxidants are prepared by reacting hydrazido substituted antioxidants with some or all of the anhydride groups of anhydride containing polymers or copolymers. The concentration of the stabilizers bound to the polymer may be readily varied depending upon the particular end-use of said polymer. Polymer with high concentrations of bound antioxidants can be used as masterbatches to stabilize other polymer systems.

Abstract: A detectable molecule of the formulaA.sup.3 --(--X--R.sup.1 --E--Det.sup.b).sub.mwhere A.sup.3 is A.sup.2 or a polymer, where A.sup.3 has at least one modifiable reactive group selected from the group consisting of amino, hydroxy, cis .OH, halides, aryl, imidazoyl, carbonyl, carboxy, thiol or a residue comprising an activated carbon; --X-- is selected from the group consisting of ##STR1## a C.sub.1 -C.sub.10 branched or unbranched alkyl or aralkyl, which may be substituted by --OH; --Y-- is a direct bond to --E--, or --Y-- is --E--R.sup.2 -- where R.sup.2 is a C.sub.1 -C.sub.10 branched or unbranched alkyl; Z.sub.a is chlorine, bromine or iodine; E is O, NH or an acylic divalent sulfur atom; Det.sup.b is a chemical moiety capable of being detected, preferably comprising biotin or a metal chelator of the formula: ##STR2## or the 4-hydroxy or acyloxy derivative thereof, where R.sup.3 is C.sub.1 -C.sub.4 alkyl or CH.sub.

Abstract: Mixtures of azolakanes of varying thermal stabilities at least one of which is an unsymmetrical azoalkane (R--N.dbd.N--R'), are prepared by reacting 4 equivalents of a mixture of two or more primary alkyl, cycloalkyl or aralkylamines with 1 equivalent of sulfuryl chloride in an inert solvent and oxidizing the resulting mixture of sulfamide products with basic bleach. The unsymmetrical azoalkanes can be separated from the symmetrical azoalkanes by a variety of conventional techniques. The azoalkane mixtures are excellent polymerization initiators for vinyl monomers and curing agents for unsaturated polyester resins.

Abstract: A photosensitive resin composition contains a co-polymer of a glycidyl (meth)acrylate or glycidyl (.alpha.-methyl)vinyl ether with a (meth)acrylic amide or ester having a quaternary ammonium salt structure, and an aromatic azide as a photosensitizer. A color filter can be prepared by coating the composition on a substrate, and exposing and developing the coated composition to form a pattern. The resultant pattern is then dyed.

Abstract: A multi-layer Langmuir-Blodgett film having non-linear optical properties is described. Alternate layers of the film are composed of first and second elongate chromophore molecules extending transverse to the plane of the film in a Y-configuration. The molecules are sythesised so that when deposited in a Y-configuration they are non-centrosymmetric and therefore exhibit significant optical nonlinearity.

Abstract: The terminally functionalized polymers are prepared from living polymers obtained by anionic polymerization of olefinically unsaturated monomers by reacting the living polymers first with capping reagents comprising nitrogen compounds of the general formulae I to VII: ##STR1## where R.sup.1 and R.sup.4 are each H, alkyl cycloalkyl or aryl, R.sup.2, R.sup.3 and R.sup.5 are each alkyl, cycloalkyl or aryl and A is a substituted or unsubstituted bridge which, in addition to the C members, can also contain N or O members and ##STR2## where R.sup.6 and R.sup.7 are each alkyl or aryl, A is a single-membered substituted or unsubstituted carbon bridge and B is a 2- to 12-membered bridge of which at least those members adjacent to the nitrogen atom comprise --C(R.sup.8, R.sup.9) radicals, where R.sup.8 and R.sup.9 can be identical or different and are H, alkyl, cycloalkyl or aryl, and the nonadjacent members can be not only --C(R.sup.8, R.sup.

Abstract: Polymeric compositions which undergo crosslinking after drying at room temperature or elevated temperatures and are dissolved or dispersed in water are prepared by reacting polymeric organic compounds containing carbonyl and carboxyl groups with polyhydrazides in the presence of monoketones or monoaldehydes and are dissolved or dispersed in water by partially or completely neutralizing the carboxyl groups.They are useful as crosslinking agents and as binders for coatings on sheet-like substrates.

Abstract: Crosslinkable polymeric compositions which are dissolved or dispersed in an organic solvent, a process for their preparation and their use.These polymeric compositions which undergo crosslinking at room temperature or elevated temperatures after drying are obtained by reacting polymeric organic compounds containing carbonyl groups with polyhydrazides in the presence of monoketones or monoaldehydes.They are useful as crosslinking agents for polyepoxide compounds.

Abstract: Water treatment, e.g. antiscaling, polymer compositions are marked or labelled with activated groups which are attached to the polymer chain backbone by carbon-carbon bonds. These activated groups are subjected to color forming reactions, e.g. by reaction with a diazonium aromatic compound, thus enabling the polymers to be detected at very low concentrations in water.

Abstract: In one embodiment this invention provides a nonlinear optical substrate which is a transparent film of a thermoplastic polymer containing recurring units corresponding to the formula: ##STR1##

Abstract: Compounds of the general formula I ##STR1## where R is hydrogen or C.sub.1 -C.sub.6 -alkyl and X is chlorine or bromine, with the proviso that X is only bromine when R is H, possess pigment properties and are distinguished by high color strength, brilliance and very good fastness properties.

Abstract: A water soluble copolymer of polymerizable esters of unsaturated carboxylic acids having the hydrazide group as a substituent comprises a major proportion of monomer units which are methyl acrylate and/or methyl methacrylate and a minor proportion of co-monomer units which are one or more alkyl esters of acrylic acid or methacrylic acid wherein the alkyl group comprises at least four carbon atoms. The copolymer has film forming properties which make it useful for use in protective coatings. The invention includes a film forming composition comprising the copolymer and a cross-linking agent which cross-linking agent is an aldehyde or an organic thermosetting resin containing methylol or methoxy groups, the copolymer and cross-linking agent being dissolved in an aqueous medium in amounts such that they will form a film when applied to a surface. The composition is applied to a surface and heated at 120.degree. to 180.degree. C. for from 5 mins.

Abstract: Product constituted by a polymer or a copolymer having in its chain substitutable groups to which are statistically fixed X and Y groups, in which X represents SO.sub.3 --R.sup.1, with R.sup.1 being a hydrogen atom or a physiologically acceptable metal, wherein the Y groups have the formula --SO.sub.2 --R.sup.2, in which R.sup.2 represents a radical derived from arginine or an arginine derivative, bonded by its amino function --NH-- to the radical --SO.sub.2 --.The invention also relates to a process for preparing such a product and to a process of the separation and purification of thrombin.

Abstract: The improved polymeric hydrogel suitable for use in forming soft contact lenses is described. The hydrogel is improved by means of its resistance to the formation of calcium, lipid and protein deposits thereon. This resistance is achieved by means of covalent modification of the hydrogel with a surfactant.

Abstract: Polymer compounds which have recurring ##STR1## units are disclosed. These polymers provide active methylene groups which serve as points of attachment for organic groups--particularly azo functionality-containing groups. These azo links can be cleaved by bacteria in the mammalian lower bowel, thereby releasing the corresponding amino groups. This mechanism can effect programmed delivery of pharmaceutically desirable species to the lower bowel.

Abstract: There is proposed a negative-working photoresist coating composition of an improved resolution, which comprises a cyclized polyisoprene having a weight-average molecular weight of 10,000 to 100,000 and a molecular weight distribution of not more than 1.9, an organic solvent of the cyclized polyisoprene, and a bisazido compound as a crosslinking agent.

Abstract: A stable aqueous dispersion of a room temperature curing polymer effective for forming films resistant to water and organic solvents, said polymer being a water-dispersible vinyl addition polymer containing a sufficient proportion of pendant N-methylolhydrazide groups to cause the polymer to cure in situ on a substrate when said dispersion is applied to the substrate and dried at ambient temperature. The polymer preferably sufficient pendant carboxylic salt groups to render the polymer water-dispersible or water soluble.

Abstract: A hydroxyl-functional polymer is reacted with a compound ZCO.N(H).sub.x.N(H).sub.x.CO.OR, where Z is halogen or aryloxy, x is 0 or 1 and R is hydrocarbon, and the reaction product is if necessary oxidized to give an azodicarboxylate functional polymer having the formula QOCO.N:N.CO.OR where Q is an inert polymer group. This polymer is used to react with ethylenically unsaturated natural or synthetic rubber so as to graft groups derived from the polymer on the rubber backbone.

Abstract: A surface modifying composition for vulcanized rubber comprises a halogen-releasable halogenoid and a waxy substance having a melting point of not more than 100.degree. C. and is non-solvent type. In the surface modification of vulcanized rubber, the surface coated with the surface modifying composition is heated at 60.degree.-150.degree. C.

Abstract: The present invention relates to colored latex products, and especially to colored synthetic polymer emulsions, the finely divided colored polymers obtainable therefrom, and methods for making the colored polymer emulsions as well as the polymers as colored, finely divided solids.