Abstract: An unsaturated acid-functional monomer having the structure: ##STR1## wherein R.sup.1 is hydrogen or methyl and Z is nothing or is a divalent radical of 1 to about 20 carbons.

Abstract: Ionomer compositions which have improved optical properties are disclosed. These compositions comprise ionomers which can be represented as the polymerization product of alpha-olefins having from two to eight carbon atoms, esters of alpha, beta-ethylenically-unsaturated carboxylic acids, metal salts of acrylic and methacrylic acid, and optional alpha, beta-ethylenically-unsaturated comonomers which impart some desired polymer property or properties, such as acidity and/or solvent resistivity. Also disclosed are methods of making these ionomer compositions in a reactive extruder and treating the compositions with acid to impart acidity to the compositions or to only the surface of the compositions.

Abstract: Disclosed is a low-temperature curable composition comprising:(a) an acrylic polymer having a molecular weight of 2,000 to 10,000, which has an acyl carbamate group, and(b) a lactone-modified polyol having a molecular weight of 200 to 20,000 in such an amount that a molar ratio of the acyl carbamate group to a hydroxyl group becomes 0.5 to 2.0.The low-temperature curable composition is useful for a binder of a paint for use in plastics.

Abstract: A process for preparing a polymer comprises polymerizing a conjugated diene monomer and/or a vinylaromatic hydrocarbon monomer in a hydrocarbon solvent in the presence of or in the absence of a randomizer by using a lithium polymerization initiator which is formed by bringing an organolithium compound and at least one secondary amine compound into contact with each other in the polymerization system in the presence of at least said monomer, wherein the polymerization conversion at the time of contact is less than 5%. The secondary amine is an amine compound having two hydrocarbon groups bonded to N or an imine compound in which an NH group and a saturated or unsaturated cyclic structure group form a cyclic structure. The cyclic structure group comprises a hydrocarbon group as the ring member and may also comprise N or O.

Abstract: A process for the preparation of an alkenyl-substituted succinic anhydride wherein the alkenyl substituent has a number average molecular weight of from about 500 to 5000 and the average number of succinic groups per alkenyl group is greater than 1.2 which comprises:(a) reacting a polyolefin having an alkylvinylidene isomer content of less than about 10 percent and a number average molecular weight of about 500 to 5000 with maleic anhydride at a temperature in the range of about 200.degree. C. to 250.degree. C. to provide a mixture of alkenyl succinic anhydride having an average of about 1.0 succinic group per alkenyl group and unreacted polyolefin, and(b) reacting the mixture of alkenyl succinic anhydride and unreacted polyolefin from step (a) with maleic anhydride in the presence of a free radical initiator at a temperature in the range of about 100.degree. C. to 220.degree. C. to thereby provide an alkenyl succinic anhydride having an average of greater than 1.2 succinic groups per alkenyl group.

Abstract: A process for producing a polymer of excellent weatherability, which comprises reacting a polymer having a thioether bond, with a peroxide to oxidize the sulfur atom in the bond to convert it into a sulfone.

Abstract: A novel copolymer of an unsaturated acidic reactant and an atactic vinyl terminated propene polymer (VTPP) and its use in preparation of fuel and lubricant additives is taught. The VTPP has a major amount of polymer chains containing terminal vinyl unsaturation, a number average molecular weight of at least 500, and comprises at least 70 weight per cent propene and 0 to 30 weight per cent of at least one olefin selected from the group consisting of C.sub.2 and C.sub.4 to C.sub.10 olefins. The unsaturated acidic reactant comprises at least one unsaturated C.sub.4 to C.sub.10 carboxylic or dicarboxylic acid or anhydride. An oil soluble dispersant additive of the invention useful in oleaginous compositions is prepared by contacting the atactic VTPP copolymer with at least one nucleophilic reagent selected from the group consisting of amines, alcohols, metal reactants and mixtures thereof under conditions effective to form adducts of the nucleophilic reagent with the copolymer.

Abstract: A functionalized polymer according to the invention includes a polymer molecule having the general formula AYLi where A is a cyclic amine-containing radical having the general formula ##STR1## wherein R.sub.1 is a divalent alkylene, an oxy- or amino-alkylene, or substituted alkylene having from 6 to about 20 carbon atoms; R.sub.2 is a linear-, branched-, or cyclo-alkylene having from about 2 to about 20 carbon atoms; and Y is a divalent polymer radical and Li is a lithium atom bonded to a carbon atom of Y.

Abstract: A coating composition having extended pot-life and excellent cure at ambient conditions. The coating composition comprises (i) at least one imine, (ii) a polyisocynate having an average of at least two isocyanate groups per molecule, (iii) at least one polyaspartic ester, and (iv) an anhydride functional polymer; wherein the coating composition is substantially free of hydroxy functionality.

Abstract: An anhydride-functional polymer is obtained by reacting under ene reaction conditions:(i) an unsaturated anhydride having the structure: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl of 1 to about 6 carbons, or alkoxy of 1 to about 6 carbons, or a halogen; and(ii) at least one polyolefin having at least two carbon-carbon double bonds in the polyolefin backbone and having an average of at least three carbon atoms in the polyolefin backbone between the carbon-carbon double bonds.

Abstract: A method for producing esters of hydroxy terminated polybutadiene, including the steps of: (a) providing an anhydride; (b) reacting a hydroxy terminated polybutadiene with the anhydride to form a carboxyl terminated polybutadiene derivative; (c) reacting the derivative with an epoxide. Also a curable composition, including: (a) an ester of hydroxy terminated polybutadiene; (b) a copolymerizable ethylenically unsaturated monomer; and (c) a drier.

Abstract: This invention relates to a polymeric vehicle which reduces or eliminates VOCs in coating compositions by providing a formulated coating composition which does not require an organic solvent for application to a substrate. The polymeric vehicle of the invention comprises at least one linear oligoester diol effective for crosslinking with a crosslinker, and having a number average molecular weight within controlled limits of a polydispersity index effective for controlling the viscosity of the polymeric vehicle.

Abstract: A coating composition based on a low molecular weight anhydride resin having pendant non-cyclic anhydride moieties, an epoxy resin containing glycidyl methacrylate and latent cataylst exhibits excellent stability in a completely formulated state and excellent performance characteristics as a coating.

Abstract: A partially tert-butoxylated poly(p-hydroxystyrene) is prepared by subjecting poly(p-tert-butoxystyrene) to reaction of eliminating some of the tert-butoxy groups in an organic solvent at a temperature of 30.degree.-100.degree. C. in the presence of an acid catalyst at a molar ratio of acid catalyst/t-BuO group of from 0.050 to 2.0. During the elimination reaction, a change of solubility of the resulting partially tert-butoxylated poly(p-hydroxystyrene) is determined to calculate a degree of elimination of tert-butoxy groups. The reaction is terminated when a desired degree of elimination is reached. Through a simple process, partially tert-butoxylated poly(p-hydroxystyrene) having a well controlled t-BuO content is produced in high yields.

Abstract: A novel lactone-modified polyvinyl acetal resin and a novel carboxyl-modified resin thereof are disclosed.The novel resins of the present invention can be used as a polyol resin for coatings curable at ordinary temperatures or heating, adhesives, binders, a processing agent for fibers, a curable resin composition by mixing with a curing agent which can react to hydroxyl groups, and a composition for a magnetic recording medium, etc.The novel resins of the present invention have graft chains containing primary hydroxyl groups bonded to the ester group derived from a lactone compound, or the primary hydroxyl groups and carboxylic groups.

Abstract: A functionalized polymer according to the invention includes a polymer molecule having the general formula AYLi where A is a cyclic amine-containing radical having the general formula ##STR1## R.sub.1 is a divalent alkylene, an oxy- or amino-alkylene, or substituted alkylene having from 6 to about 20 carbon atoms; R.sub.2 is a linear-, branched-, or cyclo-alkylene having from about 2 to about 20 carbon atoms; and Y is a divalent polymer radical and Li is a lithium atom bonded to a carbon atom of Y.

Abstract: Dispersions of polyacrylamide particles are formed and treated with a caustic material to hydrolyze the polymer to form anionic acrylamide polymers. A preferred technique for forming these products comprises the formation of a stabilized water-in-oil emulsion of aqueous acrylamide monomer, polymerizing the monomer, reacting the polymer emulsion thus formed with a hydrolysis agent and inverting the resultant hydrolyzed polymers into solution.

Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Z--O--C(R.sup.1 R.sup.2 R.sup.3)wherein M is an alkali metal; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, aryl or substituted aryl groups, and their employment as initiators in the anionic polymerization of olefin containing monomers in an inert, hydrocarbon solvent comprising reacting an omega-protected-1-haloalkyl with lithium metal dispersion having a particle size between 10 and 300 millimicrons in size, at a temperature between 35.degree. and 130.degree. C. in an alkane solvent containing 5 to 10 carbon atoms.

Abstract: A process for preparing a block copolymer of an .alpha.-olefin and a vinyl compound is here disclosed which comprises the steps of polymerizing an olefin selected from ethylene and the .alpha.-olefin having 3 or more carbon atoms by the use of a divalent or a trivalent rare earth metal complex, and then polymerizing a vinyl compound, a vinylidene compound or a lactone. According to the process of the present invention, a polar group can be introduced into a polyolefin, whereby the characteristics of the polymer can be effectively improved.

Abstract: Rheologically/water retentivity improved aqueous papercoating compositions comprise immixture, in water, of (i) a water-insoluble, non-alkali-swellable latex A of a film-forming polymer having a mean particle size .phi..sub.A ranging from 60 to 300 nm, (ii) a water-insoluble, alkali-swellable latex B of a polymer having a mean particle size .phi..sub.B ranging from 20 to 150 nm measured at a pH of from 2 to 4 and swelling at least 1.5 times in diameter in an alkaline medium, and (iii) an inorganic pigment C which comprises at least 40% by weight of CaCO.sub.3.

Abstract: This invention is directed to fast curing polymer compositions, These compositions comprise a blend of (1) a polymer having pendent activated acetylenic groups and ammonia or a comonomer having at least two functional groups which are reactive with the activated acetylenic groups of the polymer, or (2) a blend of a monomer having at least two activated acetylenic groups and ammonia and/or a comonomer having at least two functional groups which are reactive with the activated acetylenic groups of the monomer.

Abstract: A process for preparing melt spun polymeric fiber made from polymerized amide monomers includes the steps of pigmenting the polymer, incorporating within the polymer sufficient SO.sub.3 H groups or salts thereof to give the polymer a sulphur content of between about 10 and about 160 equivalents per 10.sup.6 grams polymer and thereafter chemically blocking with a chemical blocking agent a portion of amino end groups present in the sulphonated polymer.

Abstract: The present invention pertains to polyethylene glycol (PEG) derivatized graft supports, to methods for making these supports and to methods of using the supports to synthesize peptides by solid-phase synthesis techniques. The PEG-graft supports of this invention comprise functionalized PEG derivatives which are covalently attached to solid supports, such as polystyrene.

Abstract: A process for producing a diolefin polymer or copolymer, comprising the steps of polymerizing 55-100 wt % of a conjugated diolefin with 0-45 wt % of an aromatic vinyl compound as monomers in a hydrocarbon as a solvent, by using initiators: a reaction product [a1] between at least one secondary amine compound (A) and an organic lithium compound and/or a lithium amide compound [a2] of the at least one secondary amine compound (A) as well as a reaction product [b1] between at least one alcohol (B) and an organic lithium compound and/or a lithium alkoxide compound of the at least one alcohol (B). A rubber composition containing not less than 30 wt % of such a diolefin polymer or copolymer with respect to an entire rubber component is also disclosed. This rubber composition exhibits excellent abrasion resistance, high tensile strength, steering stability and low rolling resistance, and is suitable for tires, particularly, as treads of low fuel consumption tires.

Abstract: A process for continuously producing a linear lactide copolymer having a weight-average molecular weight of from 20,000 to 400,000 using a continuous reaction apparatus composed of three or more stirred flow reactors connected in series, which process comprises the steps of continuously feeding from 50 to 98 parts by weight of a lactide and from 2 to 50 parts by weight of a polymer having a hydroxyl group in a molten state or as dissolved in a solvent to the first reactor of said continuous reaction apparatus, and transferring the reaction mixture from said first reactor to the following reactors successively while maintaining the reaction pressure and the reaction temperature in every reactor in the range of from 1 to 5 atm. and of from 140.degree. to 210.degree. C., respectively, to conduct ring opening copolymerization. According to the process of the present invention, the production problems associated with conventional continuous production methods for lactide copolymers, i.e.

Abstract: A hydroxyl functional acrylic addition polymer, useful in producing refinish compositions having a good balance of solids at a given viscosity and final film hardness, which comprises units derived from isobornyl methacrylate and units derived from 4-hydroxybutyl acrylate.

Abstract: Copolymers of vinyl aromatic monomers and propoxylated allyl alcohols having an average of 2 or less oxypropylene groups are disclosed. The copolymers, which have hydroxyl numbers of 80-260 mg KOH/g and number average molecular weights from 500-3500, are particularly useful for polyurethanes, alkyd resins and coatings, melamine-based coatings, and unsaturated polyester resins.

Abstract: The present invention relates to a thermoset powder coating composition and method of application. The coating includes a copolymer having a reactive functionality selected from the group consisting of epoxy, carboxy, and hydroxy functionalities and mixtures thereof, a suitable crosslinking agent capable of reaction with the reactive functionality on the copolymer, and an aliphatic or aromatic crystalline, hydroxyl containing compound having a melting point of between 30.degree. C. and 150.degree. C. and a flow control agent. The powder coating is a pigmented or clear coat powder composition applied over a primer layer.

Abstract: The specification discloses an aqueous dispersion for coatings consisting essentially of water and a water dispersible component, wherein the water dispersible component is provided by reacting maleic anhydride with a rosin ester to provide a maleated rosin ester, adding wax and preferably also an ethylene vinyl acetate copolymer to the maleated rosin ester, and adding a tertiary amino alcohol to the mixture to yield the water dispersible component as a reaction product thereof. When used in a coating formulation for paper, clay and/or latex may be added to the formulation. In one preferred embodiment, the dispersion is applied as a coating to paper to enhance toner adhesion to the surface of the paper while also providing a relatively low friction surface.

Abstract: The present invention provides a functionalized styrenic polymer or copolymer which contains functionalized para-alkystryene moiety having the formula: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are independently selected from hydrogen, alkyl and primary and secondary halo alkyl, and R.sub.4 is selected from a group having the formula: ##STR2## wherein x is an integer of from 2 to about 10, y is an integer from ranging from 0 to about 20 and A is a linear hydrocarbyl group of from 2 to about 10 carbon atoms or a branched hydrocarbyl group of from 3 to about 10 carbon atoms.

Abstract: A powder coating composition which is curable at 120.degree. to 150.degree. C. and contains A) one or more copolymers prepared from olefinically unsaturated monomers and containing epoxy groups and optionally hydroxyl groups, B) one or more curing agents containing carboxylic acid or carboxylic acid anhydride groups, and C) one or more polyaddition compounds which contain uretdione groups, have a melting point or range of 40.degree. C. to 120.degree. C. and are prepared from (cyclo)aliphatic diisocyanates; and its use for coating of heat-resistant substrates, especially automotive substrates.

Abstract: An air curing polymer composition is disclosed which contains acetoacetate functional polymer and an autoxidizable material. The composition cures on exposure to oxygen. One pack stable ambient curing compositions and a method of stabilizing acetoacetate functional groups to prevent hydrolysis are also disclosed.

Abstract: The present invention relates to an acrylate copolymer containing amino groups, carboxyl groups and, if appropriate, hydroxyl groups which is characterized in that it has been produced by preparing an acrylate copolymer containing amino groups and, if appropriate, carboxyl groups, by means ofA) free-radical solution polymerization, using azo initiators at temperatures from 80.degree. to 150.degree. C., ofa.sub.1) 1 to 20% by weight of vinylimidazole and/or dimethylaminopropylmethacrylamide,a.sub.2) 0 to 50% by weight of one or more monomers containing hydroxyl groups,a.sub.3) 0 to 50% by weight of one or more monomers containing carboxyl groups, anda.sub.4) 30 to 85% by weight of at least one further ethylenically unsaturated copolymerizable monomer,the total of the proportions by weight of the components a.sub.1 to a.sub.4 always being 100% by weight, and the proportions by weight of the components a.sub.2 and a.sub.

Abstract: Hydrophilic composite polymer articles are provided which comprise at least one hydrophilic polymer in a powder form and one or more liquid components of which at least one is hydrophilic and which can be polymerized with said hydrophilic polymer. This composition is produced from a homogeneously mixed paste which can be molded or cast into a desired shape which will subsequently set. The resulting article has a shape-retaining, non-tacky flexible consistency which allows the shape to be further modified, if necessary.Such object can be then cured by any of the conventional curing methods to retain its shape permanently. The final properties of the composite can be tailored to suit the final application by using fillers or modifiers. In the medical field, such articles can be utilized as a sustained release devices as they can be loaded with the desired therapeutic drugs. These articles can be made non-toxic and biocompatible and used as prosthetic devices.

Abstract: The object of the present invention is to provide a powder coating excellent in storage stability and in coat surface smoothness.The present invention relates to a powder coating comprising a binder resin and a curing agent, characterized in that said curing agent has particle size characteristics such that the average particle size is 0.3 to 7 .mu.m and particles having a particle size not smaller than 20 .mu.m account for not less than 10% by weight of all curing agent particles.

Abstract: A process for the modification of .alpha.-olefin (co)polymers to introduce branching, is disclosed. More particularly, the present invention relates to a process of branching .alpha.-olefins by contacting said .alpha.-olefins with a peroxide compound containing an activated unsaturated group at a temperature above 120.degree. C. The process may be carried out under a nitrogen atmosphere or in the melt form under an oxygen-containing atmosphere.

Abstract: A core functionalized star block copolymer formed of a vinyl aromatic hydrocarbon and/or a conjugated diene and a polyalkenyl aromatic coupling agent wherein the core functionalization is provided by reaction of the star polymer core with an asymmetric bi- or polyfunctional capping agent.

Abstract: A fire retardant polymeric resin is disclosed. The resin comprises a polymer having grafted thereto a fire retardant effective amount of a monomer composition selected from among salts of acidic monomers, mixtures of salts of acidic monomers, and mixtures of acidic monomers and salts thereof. Related additives are also disclosed.

Abstract: The invention relates to an acrylic polymer latex comprising the polymerization product of an acetoacetate moiety of the structure ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of C.sub.1 -C.sub.22 alkyl groups and X is a halogen, in amounts effective to improve the water resistance of the acrylic latex; and at least one monomer(s) selected from the group consisting of C.sub.3 -C.sub.6 monocarboxylic acids, C.sub.4 -C.sub.6 dicarboxylic acids and their C.sub.1 -C.sub.4 half esters, C.sub.1 -C.sub.10 alkyl esters of acrylic acid, C.sub.1 C.sub.10 alkyl esters of methacrylic acid, styrene, halogenated styrene and substituted styrene and latex compositions containing the novel latexes.

Abstract: Polyvinylamine derivatives having hydrophilic centers, processes for their preparation and the use of the compounds as a medicament, active compound carrier and foodstuff auxiliary.Polyvinylamine derivatives containing hydrophilic centers, of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, X, w, x, y and z have the meanings given, and a process for their preparation, and the use of these compounds as medicaments, active compound carriers and foodstuff auxiliaries are described. Highly pure polyvinylamines having the recurring unit of the formula Ia ##STR2## the preparation of which is likewise described, are used in particular as starting substances for the preparation.

Abstract: Oil-soluble polymer improving the viscosity index of lubricating oils, endowed with dispersant properties and capable of lowering the pour point ("pour point depressant"), obtained by means of a first step of reaction between a polyolefinic copolymer and a mixture of C.sub.8 -C.sub.25 alcohol (meth)acrylates and (meth)acrylic acid and a second step of condensation of the so modified copolymer with a polyamine.

Abstract: The invention provides a crosslinking agent comprising a compound having at least two noncyclic acid anhydride groups and represented by the following formula ##STR1## wherein R is a monovalent hydrocarbon group having 2 to 50 carbon atoms, R' is a bivalent hydrocarbon group having 2 to 50 carbon atoms, the hydrocarbon groups R and R' containing or not containing an ether linkage, urethane linkage or ester linkage, and n is an integer of 1 to 500.The invention also provides a curable composition including (A) at least one resin selected from the group consisting of (i) a resin having at least one epoxy group and at least one hydroxyl group in the molecule, (ii) a resin mixture of a resin having at least two epoxy groups in the molecule and a resin having at least two hydroxyl groups in the molecule, and (iii) a resin having at least two epoxy groups in the molecule, and (B) the above-mentioned crosslinking agent.

Abstract: A linear, crystalline polypropylene having a branching coefficient of substantially 1, and a specified relation between melt-tensile strength and intrinsic viscosity, a specified relation between crystallization temperature and melting point, a boiling xylene-extraction residue % of 1 wt. % or less and if necessary, a specified ratio of weight average M.W./number average M.W.; a molded product from the above polypropylene; and a process for producing a polypropylene having the above polypropylene blended with di-2-ethylhexyl peroxydicarbonate, are provided, the above polypropylenes having a very high melt-tensile strength and crystallization temperature and also superior stiffness and moldability, to thereby broaden the restricted application fields of conventional polypropylene.

Abstract: A method is disclosed for forming emulsion copolymers of (meth)acrolein by:(1) emulsion polymerizing from about 0.1% to about 25%, by weight, based on the total weight of the copolymer, of an acetal derivative of (meth)acrolein with from about 75% to about 99.9% by weight, based on the total weight of the copolymer, of at least one .alpha.,.beta.-ethylenically unsaturated comonomer; and(2) adjusting the pH of the copolymer to less than about 5 to hydrolyze the acetal derivative of (meth)acrolein to (meth)acrolein.The emulsion copolymers of (meth)acrolein formed by the method of the present invention demonstrate performance properties equivalent to those formed by conventional polymerization techniques without the attendant safety and health concerns while handling and transporting the monomer.

Abstract: Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70% Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly lower viscosities at 30% to 70% 1,2-addition than similar polymers having either higher or lower amounts of 1,2-addition. The polymers are useful in making coatings, sealants, binders, and block copolymers with polyesters, polyamides, and polycarbonates.

Abstract: The object of the present invention is a polymer material with reactive sites which is insoluble particularly in aqueous media, characterised in that it consists of a chemically inert polymer which is insoluble particularly in aqueous media and sufficiently reticulated to be usable in a defined configuration such as a membrane or tube configuration, and onto this polymer is grafted a monomer having at least one carboxyl group and/or a polymer of this monomer, all or part of the carboxyl groups of this insoluble and grafted reticulated polymer being converted into condensed groups which are more reactive than the corresponding carboxyl groups. It also relates to a method of preparing this material and to applications thereof.

Abstract: This invention relates to novel hydroxy-functional polyester diluents, and more particularly, to acrylic-modified hydroxy-functional polyester reactive diluents useful for blending with a variety of thermosetting or thermoplastic film-forming polymers. More specifically, the hydroxy-functional polyester reactive diluents are essentially low molecular weight polyesters derived from triols, and a combination of unsaturated monocarboxylic acids and saturated monocarboxylic acids. These hydroxy-functional polyester diluents may be copolymerized with one or more acrylic monomers, i.e. hydroxy-functional acrylic monomers, and blended with a variety of thermosetting or thermoplastic film-forming polymers. These blends of the film-forming polymers and the hydroxy-functional polyester diluents can be crosslinked with conventional crosslinking agents such as isocyanates and used in the formulation of low VOC paint compositions particularly useful as automotive topcoats.

Abstract: The emission of the highly toxic volatile products, such as methyl bromides or iodides, or ethyl bromides or iodides, during the cure with peroxides of fluoroelastomers containing bromine or iodine atoms is substantially reduced by adding to the cure mix small amounts of substances capable of combining with the radicals which give rise to the aforesaid toxic products, thereby preventing them from forming. This procedure does not sensibly affect the cure trend and results.

Abstract: The invention relates to a process for preparing organic monomeric or polymeric compounds carrying tert-butyloxycarbonyl groups, wherein a monomeric or polymeric organic compound, which possesses at least one heteroatom with an acidic proton, such as an aliphatic or aromatic alcohol, an amide, imide or lactam, is reacted with di-tert-butyl dicarbonate in an inert solvent in the presence of about 0.01 to about 10 mol percent, relative to the compound to be converted, of a catalyst at a temperature from about 0.degree. to about 80.degree. C. The reaction solution can be used for further processing, or the reaction product can be isolated by evaporation of the solvent or by precipitation in water and drying. The compounds are preferably used in light-sensitive coatings.

Abstract: The present invention relates to a thermally stable modified selectively hydrogenated high 1,2 content block copolymer wherein a functional group is grafted to the block copolymer in the vinylarene block.