Patent ID: 11952505
Assignee: SWIMC LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 12:
13. The waterborne one-component coating composition of claim 1, wherein the coating composition, when dried as a film, is tested for chemical resistance of each of (1) ethanol, (2) brake fluid, (3) methyl ethyl ketone, (4) 25% aqueous sodium hydroxide, (5) 10% aqueous acetic acid, and (6) 30% aqueous hydrochloric acid according to ASTM 01308-02 (2013); and wherein each test is graded on a scale of:
1—substrate visible
2—severe color change, rust, blistering, delamination, very soft
3—slight to moderate blistering, delamination and/or wrinkling, loss of gloss, color change, or slightly soft
4—very slight change in color and gloss at close inspection but seemingly no change at arm's length
5—no apparent change in color and gloss, no change in film appearance at close inspection; and
wherein the chemical resistance of each test is added to yield a total chemical resistance score, and wherein the coating composition exhibits a total chemical resistance score of 25 to 30.