Patent ID: 11879050
Assignee: SI GROUP, INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A polymeric composition comprising:
a polyolefin; and
an antidegradant blend, comprising:
(a) an antioxidant comprising:
(i) a phenolic antioxidant;
(ii) an organic phosphite antioxidant; and

(b) an inorganic antioxidant or reducing agent comprising a hydrated metal hypophosphite;
wherein the antidegradant blend is absent any metal carboxylate and absent any buffering agent having the capacity to buffer in aqueous solution at a pH range from 4 to 8, wherein the organic phosphite antioxidant is present in an amount from about 40% to about 90% by weight of the antidegradant blend.