Abstract: The invention provides a radiation curable gel coat composition for fibers reinforced substrates, comprising a gel coat resin and at least one diluent monomer (B), wherein the gel coat resin comprises urethane (meth)acrylate reaction products (A) of a reaction mixture comprising: (a) a hydroxy-terminated polyol having a weight average molecular weight of about 200 to about 4000, this polyol being a polycaprolactone polyol or a [(poly)carbonate-(poly)caprolactone]polyol; (b) a diisocyanate; and (c) a hydroxyalkyl (meth)acrylate, and wherein both the diluent monomer (B) and the reaction product (A) contain polymerizable ethylenic unsaturated groups, preferably (meth)acrylate groups. Such gel coat composition provides adequate surface appearance and maintain color and high gloss when exposed to outdoor circumstances.

Abstract: A radiation curable and at least partially biobased urethane (meth)acrylate for use in a one-component coating composition for cladding an outdoor surface of a building, obtained from the reaction of at least the following compounds: a. A polyisocyanate compound having a biobased carbon content of at least 20%, preferably at least 50%, as determined by method A of the standard ASTM D6866-12: 2008, and b. A (meth)acrylate compound, different from compound a, and containing a reactive group capable to react with isocyanate groups.

Abstract: The present invention relates to an UV-curable pressure sensitive acrylic adhesive obtainable by reacting in a first step a mixture comprising: (i) at least one acrylic monomer of formula (I) wherein R1 is H or CH3; and wherein R2 and R3 are both H or both CH3; and n is an integer from 0 to 22; or mixtures thereof; and (ii) at least one monomer which comprises a pendant reactive functional group selected from cycloaliphatic epoxides, oxetanes, mono-substituted oxiranes or mixtures thereof; and in a second step reacting the obtained mixture from the first step with (iii) at least one cationic photoinitiator; and (iv) optionally further additives. An article comprising this adhesive, and a method of manufacturing the article.

Abstract: The present invention relates to a radiation curable composition comprising: (I) A radiation curable component comprising a compound having at least one ethylenically unsaturated group and (II) A chlorinated polyester component that is prepared from (A) A polyol component which is substantially free of any Bisphenol A derivative compound and which is substantially free of any cyclic ether polyol compound, said polyol component comprising a polyol compound (Ai) which is cyclic and which has at least two hydroxyl groups, and (B) A polycarboxylic acid component comprising a compound (Bi) having at least one chlorine group and at least two carboxyl groups, (C) optionally at least one monoalcohol compound, (D) optionally at least one monocarboxylic acid compound, (III) optionally at least one polycarboxylic acid compound substantially free of chlorine groups.

Abstract: The present invention relates to an UV-curable pressure sensitive acrylic adhesive obtainable by reacting in a first step a mixture comprising: (i) at least one acrylic monomer of formula (I) wherein R1 is H or CH3; and wherein R2 and R3 are both H or both CH3; and n is an integer from 0 to 22; or mixtures thereof; and (ii) at least one monomer which comprises a pendant reactive functional group selected from cycloaliphatic epoxides, oxetanes, mono-substituted oxiranes or mixtures thereof; and in a second step reacting the obtained mixture from the first step with (iii) at least one cationic photoinitiator; and (iv) optionally further additives. An article comprising this adhesive, and a method of manufacturing the article.

Abstract: The present invention relates to a process for the preparation of a radiation curable composition comprising at least one (meth)acrylic copolymer A and at least one radiation curable compound B, said process comprising a first copolymerization step, and a subsequent ring opening step.

Abstract: The methods for producing a UV-curable acrylic copolymer is disclosed. The method includes polymerizing a mixture of monomers comprising (i) 40-95 wt % of at a (meth)acrylate monomer, (ii) 5-60 wt % of a copolymerizable monomer, wherein said monomer is selected from those whose homopolymers have a glass transition temperature of higher than ?30° C., and (iii) optionally 0.5-20 wt % of a copolymerizable functional monomer having a functional group selected from the group consisting of a hydroxyl group and a carboxyl group to form an acrylic copolymer. The method includes reacting the acrylic copolymer with at least one type of monomer comprising a UV-curable functional group in the presence of a catalyst to form the UV-curable acrylic copolymer. Also encompassed are UV-curable acrylic copolymers thus formed, adhesive composition comprising the UV-curable acrylic copolymers, methods for manufacturing adhesive sheets comprising the UV-curable acrylic copolymers, and use of the UV-curable acrylic copolymers.

Abstract: The present invention provides for an ethylenically unsaturated hydroxyl-terminated polyurethane (I) obtained by reacting (i) at least one ethylenically unsaturated compound (A) containing at least two reactive groups capable of reacting with isocyanate groups and at least one ethylenically unsaturated group; with (ii) at least one saturated alcohol component (B) comprising: (iia) at least one saturated hydroxylated compound (B1) containing hydrophilic groups capable of rendering the polyurethane dispersible in aqueous medium either directly or after the reaction with a neutralizing agent to provide a salt, and at least one compound (B2) that is selected from saturated polyester polyols (B21) and/or from saturated polycarbonate polyols (B22); and/or (iib) at least one compound (B3) that is selected from saturated polyester polyols (B31) containing compound (B1) moieties and/or from saturated polycarbonate polyols (B32) containing compound (B1) moieties; and, optionally, one or more of compounds (B1) and/or (B

Abstract: The present invention relates to an ethylenically unsaturated hydroxyl-terminated polyurethane (I) obtained by reacting (i) at least one ethylenically unsaturated compound (A) containing at least two reactive groups capable of reacting with isocyanate groups and at least one ethylenically unsaturated group; with (ii) at least one saturated alcohol component (B) comprising: (iia) at least one saturated hydroxylated compound (B1) containing hydrophilic groups capable of rendering the polyurethane dispersible in aqueous medium either directly or after the reaction with a neutralizing agent to provide a salt, and, optionally, at least one compound (B2) that is selected from saturated polyester polyols (B21) and/or from saturated polycarbonate polyols (B22); and/or (iib) at least one compound (B3) that is selected from saturated polyester polyols (B31) containing compound (B1) moieties and/or from saturated polycarbonate polyols (B32) containing compound (B1) moieties; and, optionally, one or more of compounds (B1

Abstract: The present invention relates to an aqueous composition comprising from 5 to 90% by weight of a polymerizable ethylenically unsaturated water dispersible polyurethane (A) and from 1 to 60% by weight relative to the weight of polyurethane (A) of a least one polymerizable ethylenically unsaturated compound (B) having a water solubility at 25° C. of less than 50 g/l, and it use for making high gloss coatings as well as wood stains.

Abstract: The present invention relates to a process for the preparation of a radiation curable composition comprising at least one (meth)acrylic copolymer A and at least one radiation curable compound B, said process comprising a first copolymerization step, and a subsequent ring opening step.

Abstract: The present invention relates to an ethylenically unsaturated hydroxyl-terminated polyurethane (I) obtained by reacting (i) at least one ethylenically unsaturated compound (A) containing at least two reactive groups capable of reacting with isocyanate groups and at least one ethylenically unsaturated group; with (ii) at least one saturated alcohol component (B) comprising: (iia) at least one saturated hydroxylated compound (B1) containing hydrophilic groups capable of rendering the polyurethane dispersible in aqueous medium either directly or after the reaction with a neutralizing agent to provide a salt, and, optionally, at least one compound (B2) that is selected from saturated polyester polyols (B21) and/or from saturated polycarbonate polyols (B22); and/or (iib) at least one compound (B3) that is selected from saturated polyester polyols (B31) containing compound (B1) moieties and/or from saturated polycarbonate polyols (B32) containing compound (B1) moieties; and, optionally, one or more of compounds (B1

Abstract: The present invention provides for an ethylenically unsaturated hydroxyl-terminated polyurethane (I) obtained by reacting (i) at least one ethylenically unsaturated compound (A) containing at least two reactive groups capable of reacting with isocyanate groups and at least one ethylenically unsaturated group; with (ii) at least one saturated alcohol component (B) comprising: (iia) at least one saturated hydroxylated compound (B1) containing hydrophilic groups capable of rendering the polyurethane dispersible in aqueous medium either directly or after the reaction with a neutralizing agent to provide a salt, and at least one compound (B2) that is selected from saturated polyester polyols (B21) and/or from saturated polycarbonate polyols (B22); and/or (iib) at least one compound (B3) that is selected from saturated polyester polyols (B31) containing compound (B1) moieties and/or from saturated polycarbonate polyols (B32) containing compound (B1) moieties; and, optionally, one or more of compounds (B1) and/or (B

Abstract: The present invention relates to a process for the preparation of a radiation curable composition comprising at least (meth)acrylic copolymer A and at least one radiation curable epoxy based compound B, said process comprising a first copolymerization step, and a subsequent esterification step.

Abstract: The present invention relates to an aqueous composition comprising from 5 to 90% by weight of a polymerizable ethylenically unsaturated water dispersible polyurethane (A) and from 1 to 60% by weight relative to the weight of polyurethane (A) of a least one polymerizable ethylenically unsaturated compound (B) having a water solubility at 25° C. of less than 50 g/l, and it use for making high gloss coatings as well as wood stains.

Abstract: The invention relates to a process for producing carbamoyloxy(meth)acrylates which comprises transesterification of hydroxyalkyl carbamates with an (meth)acrylate of formula CH2?CR29—COOR30 wherein R29 is hydrogen or methyl and R30 represents an alkyl group comprising from 1 to 8 carbon atoms, in the presence of an organotitanate, an organozirconate catalyst or an organotin catalyst, the carbamoyloxy(meth)acrylates thereby obtained and their use in radiation curable compositions.

Abstract: The invention relates to a process for producing carbamoyloxy (meth)acrylates which comprises transesterification of hydroxyalkyl carbamates with an (meth)acrylate of formula CH2?CR29—COOR30 wherein R29 is hydrogen or methyl and R30 represents an alkyl group comprising from 1 to 8 carbon atoms, in the presence of an organotitanate, an organozirconate catalyst or an organotin catalyst, the carbamoyloxy (meth)acrylates thereby obtained and their use in radiation curable compositions.

Abstract: The invention relates to urethane(meth)acrylates and to a process for their production which comprises transesterification of hydroxyalkyl carbamates with an (meth)acrylate of formula [CH2?CR29—CO—O—]t—R30 wherein R29 is hydrogen or methyl, and R30 represents an alkyl, optionally substituted by hydroxy, which may contain from 1 to 10 ether bridges group, from 1 to 10 —CO— bridges and/or from 1 to 5 —O—CO— bridges, and at least one carbonate of formula (IX) and/or a diester of formula (X) wherein each R31, each R32, each R33, each R34 is, independently, chosen from the group of alkyl and aryl, and R35 is alkylene, alkenylene or arylene.

Abstract: The invention relates to a process for producing carbamoyloxy (meth)acrylates which comprises transesterification of hydroxyalkyl carbamates with an (meth)acrylate of formula CH2?CR29—COOR30 wherein R29 is hydrogen or methyl and R30 represents an alkyl group comprising from 1 to 8 carbon atoms, in the presence of an organotitanate, an organozirconate catalyst or an organotin catalyst, the carbamoyloxy (meth)acrylates thereby obtained and their use in radiation curable compositions.

Abstract: The present invention relates to a process wherein a cyclic carbonate compound is reacted with a compound containing a nucleophilic group, especially an amine group, in the presence of a catalyst comprising a lithium compound. Such reactions permit to obtain urethane groups useful in polymer preparation, such as polyurethanes, or other urethane-containing polymers.