Morton International, Inc.

Rohm and Haas Company

Other

Leo T Grundowski

Andrew T Daly

Owen H Decker

Karl R Wursthorn

Frank R Houda

Carl W Ernst

Systems, apparatus combinations and methods for producing a coating powder are provided wherein a stream of a powder coating precursor including at least one resin and at least one additional powder coating ingredient is contacted with a process fluid effective to reduce the viscosity of the powder coating precursor to allow processing of the powder coating precursor at a lower temperature.

Continuous processing of powder coating compositions

Systems and apparatus combinations for producing a coating powder are provided wherein a stream of a powder coating precursor including at least one resin and at least one additional powder coating ingredient is contacted with a process fluid effective to reduce the viscosity of the powder coating precursor to allow processing of the powder coating precursor at a lower temperature.

System for continuous processing of powder coating compositions

Systems, apparatus combinations and methods for producing a powder coating are provided wherein a stream of a powder coating precursor including at least one resin and at least one additional powder coating ingredient is contacted with a process fluid effective to reduce the viscosity of the powder coating precursor to allow processing of the powder coating precursor at a lower temperature.

A coating powder composition for providing a smooth, heat-resistant coating contains A) between about 60 and about 95 parts by weight or a polyester resin which has either hydroxyl functionality of 2 or greater or carboxylic acid functionality of 2 or greater, B) between about 5 and about 40 parts by weight of a curative for the polyester resin A), A) and B), in total, being 100 parts resin, C) between about 50 and about 150 parts per hundred resin by weight (phr) silicone resin, D) between about 20 and about 100 phr of a filler selected from calcium silicate, silica, magnesium aluminum silicate, calcium carbonate, barium sulfate, and mixtures thereof, E) between about 1 and about 10 phr silicone rubber, and F), up to about 50 phr mica.

Coating powders for producing heat-resistant coatings

A heat-resistant coating powder is comprised of A) between about 20 and about 83 wt % based on resin content of A) plus B) of a silicone resin having organic moieties selected from aryl and C.sub.1 -C.sub.4 alkyl, a degree of substitution of about 1.5 or less, and an --OH content of between about 2.5 and about 7.5 wt. %, B) between about 17 wt % and about 80 wt % based on resin content of A) plus B) of an acrylic resin having an acid number of between about 20 and about 100 and a hydroxyl number of about 5 or below, and C) an acid-reactive cross-linking agent(s) at a stoichiometry of between about 70 and about 110% of the acid functionality of said acrylic resin B).

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Reading, PA, United States of America

Leo T Grundowski