Gamma radiation resistant polycarbonate compositions

Details Gamma radiation resistant polycarbonate compositions Gamma radiation resistant polycarbonate compositions

1989-01-18

1990-10-16

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524110, 524265, 524290, 524367, C08K 554, C08K 515, C08K 510, C08K 506

Patent

active

049635980

ABSTRACT:
The invention relates to thermoplastic polycarbonate molding compositions which are rendered resistant to gamma-radiation by incorporating therewith about 0.1 to about 10 percent by weight of a stabilizing agent conforming to ##STR1## wherein R.sub.1 denotes a hydrogen atom or a C.sub.1 -C.sub.4 alkyl, R.sub.2 denotes a hydrogen atom, a C.sub.1 -C.sub.30 alkyl or acyl radical, silyl or pyranyl where said alkyl and acyl radicals may be either branched or linear, n is an integer of from 0 to 70, p is 0 or 1 and m is 1 to 4.

REFERENCES:
patent: 4451641 (1984-05-01), Sublett et al.
patent: 4460445 (1984-07-01), Rekers
patent: 4624972 (1986-11-01), Nace

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