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US 4,309,333 AGranted
Filled polyolefin compositions and filler material
AssigneeStauffer Chemical Company
InventorJoseph Silberberg
Life of this patent
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Abstract
Filled polyolefin compositions having improved thermal stability characteristics are formed by incorporation therein of an effective amount for improvement of such a characteristics of a di(polyoxyalkylene)hydroxyalkyl phosphonate. In most filled polyolefin compositions, the phosphonate also results in color improvement.
Claims8
A filled polyolefin composition having improved thermal stability comprising a polyolefin resin, a filler, and an effective amount for said improved stability of a neutral dipolyoxyalkylene hydroxyalkyl phosphonate having the formula:
- ##STR2## where R,R' and R" are independently C.sub.1 -C.sub.3 alkyl and the sum of m and n is an interger from 2 to 10.
Dependencies are inferred from the claim text.