The present description provides a Michael Addition curable composition, comprising A) at least one reactive donor capable of providing two or more nucleophilic carbanions; B) at least one reactive acceptor comprising two or more carbon-carbon double bonds; and C) at least one catalyst for catalyzing the Michael Addition crosslinking reaction between the at least one reactive donor and the at least one reactive acceptor. The present description further provides a coating composition containing the composition and a coated article made therefrom.

The invention provides a gelcoat composition for coating a sanitised water pool, the composition comprising: curable polymeric components comprising: (i) an unsaturated polyester base resin and (ii) a polyester-polyurethane prepolymer, wherein the polyester-polyurethane prepolymer is terminally functionalised with polymerizable ethylenically unsaturated functional groups; and reactive diluent, wherein the unsaturated polyester base resin is present in an amount of greater than 50 wt. % of the curable polymeric components, and wherein the polyester-polyurethane prepolymer is present in an amount of no more than 25 wt. % of the gelcoat composition.

The invention provides a gelcoat composition for coating a sanitised water pool, the composition comprising: curable polymeric components comprising: (i) an unsaturated polyester base resin and (ii) a polyester-polyurethane prepolymer, wherein the polyester-polyurethane prepolymer is terminally functionalised with polymerizable ethylenically unsaturated functional groups; and reactive diluent, wherein the unsaturated polyester base resin is present in an amount of greater than 50 wt. % of the curable polymeric components, and wherein the polyester-polyurethane prepolymer is present in an amount of no more than 25 wt. % of the gelcoat composition.

The disclosure provides a resin having unsaturated functionality effective for self-cross linking in compositions that are at least substantially free of external cross linkers and still achieve desired performance for internal and/or external food or beverage can coating applications. Unsaturation may be provided by reactants having a carbon-carbon double bond less reactive than a carbon-carbon double bond of maleic anhydride.

The disclosure provides a resin having unsaturated functionality effective for self-cross linking in compositions that are at least substantially free of external cross linkers and still achieve desired performance for internal and/or external food or beverage can coating applications. Unsaturation may be provided by reactants having a carbon-carbon double bond less reactive than a carbon-carbon double bond of maleic anhydride.

A UV-cured cross-linked liquid resin reinforced with ceramic inorganic nano-particles and ceramic inorganic abrasion-resistant powder, comprised of 30%-45% by weight resin, wherein the resin is at least one of 2-propenoic acid, homopolymer, isophthalic acid, 1,4-Dimethoxybenzene, saturated polyester resin, and maleic anhydride; 10%-20% by weight industrial ceramic inorganic nano-materials; 30%-45% by weight industrial ceramic inorganic abrasion-resistant powder; and styrene, wherein the styrene is less than 25% by weight of the UV-cured cross-linked liquid resin reinforced with ceramic inorganic nano-particles and ceramic inorganic abrasion-resistant powder.

A UV-cured cross-linked liquid resin reinforced with ceramic inorganic nano-particles and ceramic inorganic abrasion-resistant powder, comprised of 30%-45% by weight resin, wherein the resin is at least one of 2-propenoic acid, homopolymer, isophthalic acid, 1,4-Dimethoxybenzene, saturated polyester resin, and maleic anhydride; 10%-20% by weight industrial ceramic inorganic nano-materials; 30%-45% by weight industrial ceramic inorganic abrasion-resistant powder; and styrene, wherein the styrene is less than 25% by weight of the UV-cured cross-linked liquid resin reinforced with ceramic inorganic nano-particles and ceramic inorganic abrasion-resistant powder.

A UV-cured cross-linked liquid resin reinforced with ceramic inorganic nano-particles and ceramic inorganic abrasion-resistant powder, comprised of 30%-45% by weight resin, wherein the resin is at least one of 2-propenoic acid, homopolymer, isophthalic acid, 1,4-Dimethoxybenzene, saturated polyester resin, and maleic anhydride; 10%-20% by weight industrial ceramic inorganic nano-materials; 30%-45% by weight industrial ceramic inorganic abrasion-resistant powder; and styrene, wherein the styrene is less than 25% by weight of the UV-cured cross-linked liquid resin reinforced with ceramic inorganic nano-particles and ceramic inorganic abrasion-resistant powder.

Thermosetting powder coating compositions and processes for making the thermosetting powder coating compositions and processes for coating an article with the thermosetting powder coating compositions are disclosed. Cured thermosetting powder coating compositions are obtained by curing of the thermosetting powder coating compositions of the invention. Articles are provided having coated thereon the thermosetting powder coating compositions as well as to articles having coated and cured thereon the thermosetting powder coating compositions. The thermosetting powder coating compositions exhibit a substantially lower T.sub.chalk-free, that is a ΔT.sub.chalk-free which is in the range of from and including 5 up to and not including 10° C., wherein ΔT.sub.chalk-free=T.sub.chalk-free.sup.REF−T.sub.chalk-free.sup.A where T.sub.chalk-free.sup.A is the T.sub.chalk-free of a thermosetting powder coating composition according to the invention (TPCC-A) and T.sub.chalk-free.sup.REF is the T.sub.chalk-free of a thermosetting powder coating composition not according to the invention (TPCC-REF) that is comparable to TPCC-A.

Thermosetting powder coating compositions and processes for making the thermosetting powder coating compositions and processes for coating an article with the thermosetting powder coating compositions are disclosed. Cured thermosetting powder coating compositions are obtained by curing of the thermosetting powder coating compositions of the invention. Articles are provided having coated thereon the thermosetting powder coating compositions as well as to articles having coated and cured thereon the thermosetting powder coating compositions. The thermosetting powder coating compositions exhibit a substantially lower T.sub.chalk-free, that is a ΔT.sub.chalk-free which is in the range of from and including 5 up to and not including 10° C., wherein ΔT.sub.chalk-free=T.sub.chalk-free.sup.REF−T.sub.chalk-free.sup.A where T.sub.chalk-free.sup.A is the T.sub.chalk-free of a thermosetting powder coating composition according to the invention (TPCC-A) and T.sub.chalk-free.sup.REF is the T.sub.chalk-free of a thermosetting powder coating composition not according to the invention (TPCC-REF) that is comparable to TPCC-A.