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US 9,080,004 B2Granted
Diethylene glycol monomethyl ether resistant coating
AssigneePRC-DeSoto International, Inc.
InventorsSiamanto Abrami, Jin Song, Guangliang Tang
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Abstract
Diethylene glycol monomethyl ether resistant coatings include a base component including a sulfur-containing, epoxy functional polyol, and an activator component including an isocyanate curing agent.
Claims27
A coating composition comprising:
- a) a sulfur-containing, epoxy functional polyol, wherein the sulfur-containing, epoxy functional polyol comprises a compound represented by Formula (7):
- wherein Z comprises a polythioether or polysulfide linkage;
- R3 comprises an alkyl group or an aromatic group or a combination thereof, and comprises at least two hydroxyl functional groups;
- m is an integer ranging from 1 to 4;
- and
- each of R1 and R2 is independently an alkyl group or an aromatic group or a combination thereof;
- and
- b) an isocyanate curing agent;
- wherein an isocyanate to hydroxyl ratio of the coating composition is from 15:1 to 20:1 by equivalent weight.
6 more elements
A coating composition comprising:
- a) a sulfur-containing, epoxy functional polyol;
- and
- b) an isocyanate curing agent;
- wherein the coating composition has an isocyanate to hydroxyl ratio from 15:1 to 20:1 by equivalent weight.
1 more element
A coating composition comprising:
- a) a compound represented by Formula 7:
- wherein,
- each of R1 and R2 independently comprise an alkyl group or an aromatic group or a combination thereof;
- R3 comprises an alkyl group or an aromatic group or a combination thereof, and comprises at least two hydroxyl functional groups;
- m is an integer ranging from 0 to 4;
- and
- Z comprises a polythioether or polysulfide linkage;
- and
- b) an isocyanate curing agent;
- wherein the coating composition has an isocyanate to hydroxyl ratio from 15:1 to 20:1 by equivalent weight.
7 more elements
Dependencies are inferred from the claim text.