Olefinic and urethane-terminated ester polyalkadiene

Details Olefinic and urethane-terminated ester polyalkadiene Olefinic and urethane-terminated ester polyalkadiene

1995-12-11

1998-01-20

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

5253319, 5253332, C08G 6352

Patent

active

057102350

ABSTRACT:
An olefinic-terminated polyalkadiene that includes carboxy ester linking groups and at least one nascent secondary hydroxyl group that is capped with a monoisocyanate. This polyalkadiene can be made by reacting a hydroxyl-terminated polyalkadiene with a saturated cyclic acid anhydride to form a carboxylic acid-terminated polyalkadiene, reacting the carboxylic acid-terminated polyalkadiene with an olefinic monoepoxide to form an olefinic-terminated polyalkadiene, then reacting the olefinic-terminated polyalkadiene with a monoisocyanate.

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