The present invention provides mixture of at least two novolak resins with a molecular weight distribution overlap of at least 50% and having dissolution rates which differ by a factor of at least 2.0. A method is also provided for producing such novolak resin mixtures.
申请公布号
DE69314965(T2)
申请公布日期
1998.02.26
申请号
DE1993614965T
申请日期
1993.09.24
申请人
HOECHST CELANESE CORP., SOMERVILLE, N.J., US
发明人
LU, PING-HUNG, BRIDGEWATER, NEW JERSEY 08807, US;CANIZE, ANTHONY, FLEMINGTON, NJ 08822, US;KHANNA, DINESH, N., EAST GREENWICH, RI 02818, US;RAHMAN, M., DALIL, FLEMINGTON, NJ 08822, US
