Patent ID: 11932775
Assignee: DOW SILICONES CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A curable coating composition comprising:
(1) a silicone imine resin which in the presence of sufficient amounts of water forms an amino-functional silicone resin of the fully condensed formula

RxSiO(4-x)/2 where

(a) x is a number from 1.0 to 2.1;
(b) the amino-functional silicone resin is comprised of the Si units R3SiO1/2, R2SiO2/2, RSiO3/2, and SiO4/2 in polymerized form, where at least 5 mole percent of the total amount of Si units of the amino-functional silicone resin comprise (i) RSiO3/2 groups, (ii) SiO4/2 groups or (iii) mixtures thereof;
(c) each R is independently an alkyl group, an aryl group, or an amino-functional hydrocarbyl group, provided that the —NH— equivalent mass of the amino-functional silicone resin is from 50 to 750; and

(2) an acrylic copolymer which has, in polymerized form, epoxy functionalized groups and cure compatibility groups; and
wherein the coating composition has a molar ratio of amine NH functionality from hydrolyzed imine functionality on the silicone imine resin, to epoxy functionality, in the range of from 0.5 to 1.3.