High energy irradiated polycarbonates containing organic borates

Details High energy irradiated polycarbonates containing organic borates High energy irradiated polycarbonates containing organic borates

1985-01-02

1987-08-11

Hoke, Veronica P.

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

524183, 524184, 524185, C08K 555, C08J 328

Patent

active

046862455

ABSTRACT:
A composition sufficiently irradiated to achieve sterilization comprising an aromatic carbonate polymer in admixture with an anti-yellowing upon exposure to sterilization irradiation effective amount of a boron compound having part of its structure at least one ##STR1## group wherein R is selected from alkyl of one to twenty-four carbon atoms, inclusive, alkenyl of two to twenty-four carbon atoms, inclusive, cycloalkyl of four to fourteen carbon atoms, inclusive, aryl of six to fourteen carbon atoms, inclusive; and substituted phenyl wherein there are one to three substituents which are the same or different and are alkyl of one to six carbon atoms, inclusive, alkoxy of one to six carbon atoms, inclusive, and halo; and R' is selected from the same group as R with a further hydrogen atom replaced by a bond to the second oxygen.

REFERENCES:
patent: 2942021 (1960-06-01), Groszos et al.
patent: 2967877 (1961-01-01), Groszos
patent: 3106573 (1963-10-01), Bamford
patent: 3156673 (1964-11-01), Bamford
patent: 3161606 (1964-12-01), Rash
patent: 4211679 (1980-07-01), Mark et al.
patent: 4275174 (1981-06-01), Tadokoro et al.

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