Composition of antioxidants of reduced volatility

Details Composition of antioxidants of reduced volatility Composition of antioxidants of reduced volatility

1975-07-07

1977-02-22

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4595C, C08K 537, C08K 513

Patent

active

040091473

ABSTRACT:
For incorporation in normally oxidizable polymers, polymeric antioxidants characterized by repeating hindered bisphenolic units, the average number of said units per polymeric chain in said composition being from about 2 to 10, preferably about 2 to 7, most preferably about 2 to 4. The antioxidants are prepared by oxidative coupling of appropriate bisphenols, as by reaction with a ferricyanide coupling agent. Polymer-antioxidant combinations formed according to the invention have excellent high temperature oxidative stability, high resistance to polymer damage by massive doses of ionizing radiation and the antioxidant does not release significant amounts of condensable species when subjected simultaneously to conditions of high vacuum and elevated temperatures.

REFERENCES:
patent: 2239534 (1941-04-01), Mikesa
patent: 2905737 (1959-09-01), Webb
patent: 2956982 (1960-10-01), McCall et al.
patent: 3082187 (1963-03-01), Fuchsman
patent: 3450671 (1969-06-01), Thalstrup
patent: 3843600 (1974-10-01), Robin
patent: 3856728 (1974-12-01), Akramoff
Wire and Wire Products-36 (4) p. 465 (1961) article by Tarbox.

Affiliated with

Also associated with

Rating

Composition of antioxidants of reduced volatility does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composition of antioxidants of reduced volatility, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition of antioxidants of reduced volatility will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-323475