Aromatic polycarbonate composition having improved thermal stabi

Details Aromatic polycarbonate composition having improved thermal stabi Aromatic polycarbonate composition having improved thermal stabi

1997-01-24

1999-06-15

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524100, 524107, 524114, 524119, 524151, 524152, 524121, 524128, 524304, 524414, 524417, C08K 551

Patent

active

059122897

ABSTRACT:
Disclosed is a thermally stable aromatic polycarbonate composition comprising an aromatic polycarbonate, which is substantially free of a chlorine-containing compound, and a thermal stabilizer, the aromatic polycarbonate comprising a plurality of aromatic polycarbonate chains, each comprising recurring aromatic carbonate units and having a terminal aryl carbonate group and a terminal hydroxyl group, wherein each recurring unit has a divalent aromatic or pyridylene group comprising one or more divalent constituent aromatic or pyridylene groups, and wherein the plurality of aromatic polycarbonate chains collectively contain at least one constituent aromatic or pyridylene group substituted with at least one methyl group in an amount of 0.0001 or less in terms of the molar ratio of the methyl group substituted constituent group or groups relative to all constituent groups in the aromatic polycarbonate chains.

REFERENCES:
patent: 4831105 (1989-05-01), Schissel
patent: 4920200 (1990-04-01), Brunelle et al.
patent: 4994547 (1991-02-01), Brunelle et al.
patent: 5401826 (1995-03-01), Sakashita et al.
patent: 5405934 (1995-04-01), Oshino et al.
patent: 5470940 (1995-11-01), Otani et al.
patent: 5625025 (1997-04-01), Kuze et al.
The Condensed Chemical Dictionary-10th edition (1981) pp. 88 and 872, ed. Hawley, Van Nostrand Reinhold Co. Pub., 1981.

Affiliated with

Also associated with

Rating

Aromatic polycarbonate composition having improved thermal stabi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aromatic polycarbonate composition having improved thermal stabi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aromatic polycarbonate composition having improved thermal stabi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-403056