Process for preparing poly (2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate)
摘要
This invention relates to a polycarbonate represented by the formula (I):wherein R1 is H, alkyl, aryl,R2 is alkyl, aryl, or alkoxy, R3 and R4 are alkyl or aryl having 1 to 20 carbons, and n is from 100 to 100,000.
申请公布号
US6255437(B1)
申请公布日期
2001.07.03
申请号
US19990453975
申请日期
1999.12.02
申请人
EASTMAN CHEMICAL COMPANY
发明人
WALKER THEODORE ROSEUELT;DARNELL WILLIAM RONALD;FLEISCHER JEAN CARROLL
