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US 4,379,914 AGranted
Polycaprolactone polymers
AssigneeExxon Research & Engineering Co.
InventorRobert D. Lundberg
Life of this patent
Estimating the term…
Abstract
The instant invention relates to a process for the formation of polylactone polymers which are terminated on one end by a tertiary amine group and on the other end by a hydroxyl group. An .epsilon.-caprolactone is reacted with a diamine in the presence of a catalyst, wherein one of the amine groups of the diamine is a tertiary amine and the other amine group is primary or secondary.
Claims6
A polycaprolactone polymer having the formula:
- ##STR5## wherein R.sub.1 or R.sub.2 is an alkyl, cycloalkyl or aryl group, R.sub.3, R.sub.4 and R.sub.5 is a hydrogen or alkyl, cycloalkyl, or aryl group, and m equals 1 to 20 and n equals 1 to about 500.
Dependencies are inferred from the claim text.