Nippon Paint Compnay, Ltd.

Masami Yabuta

Satoshi Urano

Yasuhiko Nakae

Yutaka Harada

Haruhiko Sato

Atsushi Yamada

Kazuhiko Nishimura

Eiji Yamanaka

A thermosetting powder coating composition prepared by a wet process, which contains a mixture comprising (a) an epoxy-containing acrylic resin, (b) a polycarboxylic acid compound curing agent, (c) fine crosslinked resin particles and, optionally, (d) a resin that exists in the liquid form at room temperature.

Powder coating of epoxy-acrylic resin, polycarboxylic acid and crosslinked resin particles

A thermosetting powder coating composition prepared by a wet process, which contains a mixture comprising (a) an epoxy-containing acrylic resin, (b) a polycarboxylic acid compound curing agent, (c) fine crosslinked resin particles and/or (d) a resin that exists in the liquid form at room temperature.

Powder coating of epoxy-acrylic resin, polycarboxylic acid, crosslinked particles and liquid resin

The present invention provides a method for producing N-acyl carbamate in high yield. The method of the present invention comprises the step of reacting an unsaturated acid halide with a carbamate in the presence of a hindered amine. Another method of the present invention comprises the step of reacting a N,N-diacyl carbamate with an active hydrogen compound.

Method for producing N-acyl carbamate

The present invention provides a novel polyacylurethane, and a process for producing the same. More specifically, the polyacylurethane has a number average molecular weight of 500 to 100,000, and the main chain of said polyacylurethane comprises repeating units of the formula: ##STR1## where R.sub.1 represents an alkylene group or an alkenylene group having a molecular weight of 28 to 30,000, which may contain an alicylcic group, an aromatic group and/or an oxygen atom; and R.sub.2 represents an alkylene group, an arylene group or an alkenylene group having 1 to 8 carbon atoms.

Polyacylurethane and process for producing the same

The present invention provides the compound containing one hydroxyl group and one acyl carbamate group per molecule, which is useful for introducing the acyl carbamate group in chemical materials. By employing the present compound, it becomes possible to introduce the acyl carbamate group in various chemical materials other than acrylic polymers. According to the present process, the compound containing one hydroxyl group and one acyl carbamate group per molecule is provided in excellent yield with a suppressed amount of by-product.

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Ibaragi, Japan

Masami Yabuta