BISPHENOL POLYETHER OLIGOMERS, METHODS OF MANUFACTURE, AND POLYCARBONATES MADE THEREFROM
申请人:SABIC Innovative Plastics IP B.V
公开号:US20150183929A1
公开(公告)日:2015-07-02
A bisphenol polyether oligomer composition comprising greater than 90 wt. % of an oligomer of the formula
wherein R
a
, R
b
, and R
c
are each independently a C
1-12
alkyl, C
1-12
alkoxy, or C
1-12
alkylarylene,
each X
a
is independently a single bond, —O—, —S—, —S(O)—, —S(O)
2
—, —C(O)—, or a C
1-18
organic group,
G is H or
p, q, and t are each independently integers of 0 to 4, n is 1 to 10; and wherein the bisphenol polyether oligomer composition comprises: a total halide content of less than 1000 ppm, less than 1000 ppm of —CH
2
OH groups, less than 5 wt. % cyclic oligomers, and less than 100 ppm of a bisphenol of the formula
wherein R
a
, R
b
, X
a
, p and q are the same as in the oligomer.