Welcome Guest to Coatings World    Login || Register
Last Updated Sunday, October 4 2015

PPG patents low temp 2-component

Published October 14, 2005
Patent No. U.S. 6,884,845 B2
PPG Industries has been granted a patent for a stable aqueous dispersion of a polyester polyol and a carboxylic acid-containing acrylic polymer polyol as a first component, prepared by polymerizing a mixture of ethylenically unsaturated polymerizable monomers, in the absence of solvent. It is comprised of at least one carboxylic acid group-containing monomer; at least one primary alcohol group-containing monomer; at least one glycidyl ester of an aliphatic saturated monocarboxylic acid; and at least one polyester polyol. The polymerization is carried out by feeding a mixture comprising the carboxylic acid, primary alcohol and polyester polyol to a reaction vessel over a period of time. The equivalent ratio of the carboxylic acid groups from the carboxylic acid group-containing monomer to the epoxy group of the glycidyl ester of an aliphatic saturated monocarboxylic acid is greater than 1:1; the weight ratio of polyester polyol to acrylic polymer polyol is in the range of 10:90 to 30:70 and a polyisocyanate crosslinking agent as a second component, wherein the equivalent ratio of hydroxyl groups in to isocyanate functional groups in is from 0.8:1 to 1.7:1.

blog comments powered by Disqus

Receive free Coatings World emails
Sign up now to receive the weekly newsletter, and more!

Enter your email address:
Company Spotlight
BASF Corporation
100 Campus Drive
Florham Park, NJ, 07932
View Profile
Shamrock Technologies, Inc.
Foot of Pacific Street
Newark, NJ, 07114
View Profile
Siltech Corporation
225 Wicksteed Avenue
Toronto, ON, M4H 1G5
View Profile
Micro Powders, Inc.
580 White Plains Rd.
Tarrytown, NY, 10591
View Profile
Houchi Chemical Co., Ltd
No.56, Fu Chow Street
Taipei, Taipei, 100
View Profile
18F, No.85, Sec. 1, Chung-Shiao E. Rd.
Taipei, Taiwan, 100
View Profile
AZ Electronic Materials Co., Ltd.
No. 458-6, Sinsing Road Hu Kou Township Hsinchu Country 303, Taiwan
Hsinchu Country, Taiwan, 303
View Profile
Sunin Machine Co., Ltd.
No.96, Chiao Ho Rd ,Chungho Dist
New Taipei City, Taiwan , 235
Taiwan Roc
View Profile
Follow Coatings World On