Stabilizers for halopolymer compositions
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United States of America Patent
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Apr 6, 1993
Issued Date -
N/A
app pub date -
Apr 15, 1992
filing date -
Jan 16, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A composition comprising an ethylene/chlorotrifluoroethylene copolymer and an effective stabilizing amount of a phenolic complex of the formula: ##STR1## wherein at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 is --OH, and wherein the remaining R.sub.1 through R.sub.5 is hydrogen or an aliphatic hydrocarbon, and wherein each of R.sub.1 through R.sub.5 may be the same or different provided that at least one of R.sub.1 through R.sub.5 is --OH, and each of R.sub.6 and R.sub.7 is an alkylene group having from 1 to about 10 carbon atoms, and each of R.sub.6 and R.sub.7 may be the same or different. The composition may further include a phosphite, a thioester or sulfide compound, and/or an inorganic filler such as tricalcium aluminate hexahydrate. Such compositions show improved melt stability at high temperatures and are useful as wire and cable coatings, films, and pipes.
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