Patent ID: 11952514
Assignee: PPG INDUSTRIES OHIO, INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC B  C

Claim 5:
6. The adhesive composition of claim 1, wherein the alpha-hydroxy amide blocking agent, the alpha-hydroxy ester blocking agent, or the alpha-hydroxy thioester blocking agent is represented by the following structure:, wherein:
X is N(R2), O, or S; and n is 1 to 4;
when n=1 and X═N(R2), R is hydrogen, a C1 to C10 alkyl group, an aryl group, a polyether, a polyester, a polyurethane, a hydroxy-alkyl group, or a thio-alkyl group;
when n=1 and X═O or S, R is a C1 to C10 alkyl group, an aryl group, a polyether, a polyester, a polyurethane, a hydroxy-alkyl group, or a thio-alkyl group;
when n=2 to 4, R is a multi-valent C1 to C10 alkyl group, a multi-valent aryl group, a multi-valent polyether, a multi-valent polyester, or a multi-valent polyurethane;
each R1 is independently hydrogen, a C1 to C10 alkyl group, an aryl group, or a cycloaliphatic group;
each R2 is independently hydrogen, a C1 to C10 alkyl group, an aryl group, a cycloaliphatic group, a hydroxy-alkyl group, or a thio-alkyl group; and
R and R2 together can form a cycloaliphatic, heterocyclic structure.