| 摘要 |
A copolymer of (a) an unsubstituted 4-hydroxystyrene monomer and (b) a substituted 4-hydroxystyrene monomer of the formula <CHEM> wherein A, B, C, and D are independently H or C1 to C3 alkyl and wherein at least one of A, B, C and D is C1 to C3 alkyl; and wherein said copolymer has a molecular weight of from about 800 to about 100,000; and wherein the mol ratio of monomer (a) to monomer (b) ranges from about 3:1 to about 1:3. |
| 申请人 |
HOECHST CELANESE CORP., SOMERVILLE, N.J., US;INTERNATIONAL BUSINESS MACHINES CORP., ARMONK, N.Y., US |
发明人 |
VICARI, RICHARD, CHATHAM TOWNSHIP NEW JERSEY, US;GORDON, DOUGLAS J., SOMERVILLE NEW JERSEY, US;HINSBERG, WILLIAM D., III, FREMONT CALIFORNIA 94539, US;MC KEAN, DENNIS R., CUPERTINO CALIFORNIA 95014, US;WILLSON, CARLTON G., SAN JOSE, CALIFORNIA 95126, US |
