Stabilized polymerizable compositions
AssigneeICI United States Inc.
InventorAlfred Joseph Restaino
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Abstract
Compositions stabilized against premature polymerization are disclosed. These compositions contain A. a vinyl or vinylidene monomer capable of free radical polymerization, and B. a polymerization inhibitor having the following general formula: ##STR1## wherein R' is hydrogen or an alkyl group containing from 1 to 4 carbon atoms, R.sub.1, r.sub.2, r.sub.3 and R.sub.4 are alkyl groups containing from 1 to 5 carbon atoms, and R.sub.5, r.sub.6, r.sub.7 and R.sub.8 are hydrogen or alkyl groups containing from 1 to 5 carbon atoms provided that only two of these may be a secondary or a tertiary alkyl group.
Claims9
A polymerizable composition stabilized against premature polymerization comprising
- a. at least about 30 percent by weight based on the total weight of the composition of a vinyl or vinylidene monomer capable of free radical polymerization, and
- b. a polymerization inhibitor having the following general formula ##STR9## wherein R' is hydrogen or an alkyl group containing from 1 to 4 carbon atoms,
- R.sub.1, r.sub.2, r.sub.3 and R.sub.4 are alkyl groups containing from 1 to 5 carbon atoms, and
- R.sub.5, r.sub.6, r.sub.7 and R.sub.8 are hydrogen or alkyl groups containing from 1 to 5 carbon atoms provided that only two of these may be a secondary or a tertiary alkyl group.
Dependencies are inferred from the claim text.