Radiation-curable, polyester acrylate-containing compositions (I) obtainable by reacting 0.5 to 20 mol % of a polyester polyol (A) and 0.5 to 30 mol % of a polyester diol (B) with 1 to 10 mol % of phthalic anhydride (C) and 65 to 75 mol % of (meth)acrylic acid (D) in the presence of an acidic esterification catalyst, a hydrocarbon (L), and a polymerization inhibitor. Reaction temperatures range from 60 to 140 C. The hydrocarbon (L) functions as solvent, forms an azeotropic mixture with water, and is removed distillatively after esterification. Water formed in the reaction is removed azeotropically. After neutralization of the esterification catalyst, free (meth)acrylic acid is reacted with an epoxide compound (E) in an amount equivalent to the acid number of the reaction mixture. The compound (E) has at least two epoxide groups per molecule. The compositions are suitable for coating the surfaces of solid substrates.

The invention relates to a process for the preparation of a RMA crosslinkable composition comprising at least one crosslinkable component comprising reactive components A and B each comprising at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons CH in activated methylene or methine groups and the at least 2 reactive groups of component B are activated unsaturated groups CC and base catalyst C and one or more NH group containing reactivity moderating component D that are also a Michael addition donor reactable with component B under the action of catalyst C, characterized in that the one or more reactivity moderating components D have a melting temperature above 60 C. and is first dissolved in one or more crosslinkable components comprising reactive components A or B and the obtained pre-dissolved product is later mixed with other components of the RMA crosslinkable composition.

The invention relates to a process for the preparation of a RMA crosslinkable composition comprising at least one crosslinkable component comprising reactive components A and B each comprising at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons CH in activated methylene or methine groups and the at least 2 reactive groups of component B are activated unsaturated groups CC and base catalyst C and one or more NH group containing reactivity moderating component D that are also a Michael addition donor reactable with component B under the action of catalyst C, characterized in that the one or more reactivity moderating components D have a melting temperature above 60 C. and is first dissolved in one or more crosslinkable components comprising reactive components A or B and the obtained pre-dissolved product is later mixed with other components of the RMA crosslinkable composition.

This invention relates to a thermally and/or high-energy radiation curable waterborne or 100% solid coating with high bio-based content. The coating formulation according to the present invention is derived or partially derived from melt polycondensation of a carboxylic acid and a diol with dicyclopentadiene-maleic acid half-ester or nadic acid-maleic acid half-ester or methyl nadic acid-maleic acid half-ester.

An aqueous alkyd resin coating composition, comprising (a) at least one alkyd resin as a dispersed phase; (b) an emulsifier based on styrenated phenols that have been converted into reactive surfactants by first reaction with one or more equivalents of an allyl glycidyl ether to provide pendant allyl groups and then oxyalkylated and (c) water. The invention also provides a method for preparing these aqueous alkyd resin coating compositions from solvent borne alkyd compositions.

An aqueous alkyd resin coating composition, comprising (a) at least one alkyd resin as a dispersed phase; (b) an emulsifier based on styrenated phenols that have been converted into reactive surfactants by first reaction with one or more equivalents of an allyl glycidyl ether to provide pendant allyl groups and then oxyalkylated and (c) water. The invention also provides a method for preparing these aqueous alkyd resin coating compositions from solvent borne alkyd compositions.

Provided herein are methods, compositions, devices, and systems for the 3D printing of biomedical implants. In particular, methods and systems are provided for 3D printing of biomedical devices (e.g., endovascular stents) using photo-curable biomaterial inks (e.g., or methacrylated poly(diol citrate)).

Provided herein are methods, compositions, devices, and systems for the 3D printing of biomedical implants. In particular, methods and systems are provided for 3D printing of biomedical devices (e.g., endovascular stents) using photo-curable biomaterial inks (e.g., or methacrylated poly(diol citrate)).

The invention relates to a glass-reinforced plastic pipe liner of improved impact performance comprising layer B) from unsaturated polyester resin, optionally mixed with vinyl ester resin reinforced by non-woven fibres and a layer C) from unsaturated polyester resin, optionally mixed with vinyl ester resin reinforced by chopped fibre strands. At least one of these layers B) or C) comprises colour pigments at 0.2-5.0 wt %. The invention provides flexible liners for pressure and non-pressure GRP pipes. It improves impact performance of the pipe liner whilst offering also improvements in abrasion resistance, water jet resistance for high pressure cleaning without liner damage, increased expected lifetime by improved resistance to internal pressure and permits pigmentation of the liner. The invention also encloses a process for producing the glass-reinforced plastic pipe liner.

A thermosetting resin composition, a thermosetting resin composition for protective films, a thermosetting resin composition for planarizing films, and a method for producing a cured film, a protective film, or a planarizing film by using the resin composition. A thermosetting resin composition has a polymer having a structural unit of Formula (1) below, a curing agent in an amount of 0% by mass to 30% by mass with respect to the polymer, and a solvent. When the thermosetting resin composition includes the curing agent, the curing agent is at least one compound selected from polyfunctional (meth)acrylate compounds and polyfunctional blocked isocyanate compounds: ##STR00001##
(wherein A.sup.1 is a C.sub.2 or C.sub.3 alkenyl group or alkynyl group, and A.sup.2 is a C.sub.2 alkenylene group or alkynylene group).