Polyether ester elastomer comprising polytrimethylene ether ester soft segment and trimethylene ester hard segment
First Claim
Patent Images
1. A polyether ester elastomer comprising about 90-about 60 weight % polytrimethylene ether ester soft segment and about 10-about 40 weight % trimethylene ester hard segment.
3 Assignments
0 Petitions
Accused Products
Abstract
A polyether ester elastomer comprising about 90-about 60 weight % polytrimethylene ether ester soft segment and about 10-about 40 weight % trimethylene ester hard segment, and use thereof in fibers and other shaped articles. The fibers have excellent physical properties, including superior strength and stretch recovery.
88 Citations
38 Claims
- 1. A polyether ester elastomer comprising about 90-about 60 weight % polytrimethylene ether ester soft segment and about 10-about 40 weight % trimethylene ester hard segment.
-
27. A polyether ester comprising a soft segment represented by the structure:
-
and a hard segment represented by the structure;
where x is about 17 to about 86 and R and R′
, which may be the same or different, are divalent radicals remaining after removal of carboxyl functionalities from dicarboxylic acid equivalent.
-
Specification