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US 4,288,379 AGranted
Hydrocarbon polyl gem-bis(t-alkylperoxy)alkanoates derived from .beta.-keto-acids
AssigneeThe Dow Chemical Company
InventorDuane B. Priddy
Life of this patent
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Abstract
The title compounds are useful vinyl polymerization initiators of high thermal stability and correspond to the formula: ##STR1## wherein R is an x-valent hydrocarbon whose chain length can be interrupted by one or more ether linkages, R' is an aliphatic moiety of 1 to about 10 carbon atoms, R" is a tertiary hydrocarbon, and x is an integer of at least 2.
Claims8
A hydrocarbon polyl gem-bis(t-alkylperoxy)alkanoate which has a one-hour half-life of at least about 130.degree. C. and corresponds to the formula:
- ##STR6## wherein R is an x-valent hydrocarbon whose chain length may be interrupted by one or more ether linkages;
- R' is an aliphatic moiety of 1 to about 10 carbon atoms;
- R" is a tertiary hydrocarbon;
- and
- x is an integer of at least 2.
2 more elements
Dependencies are inferred from the claim text.