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Article: Japanese Inventor Develops Aliphatic Copolyester Resin
- Article from:
- US Fed News Service, Including US State News
- Article date:
- July 11, 2008
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ALEXANDRIA, Va., July 11 -- Yasuteru Kajikawa of Himeji, Japan, has developed an aliphatic polyesters.
An abstract of the invention, released by the U.S. Patent & Trademark Office, said: "In the present invention, there are obtained aliphatic polyesters having a controlled thermal decomposing property, hydrolizability, and biodegradability, in which OH terminals and COOR terminals are decreased to 50% and 30%, respectively, through a ring-opening polymerization of a lactone and lactide by a mono alcohol having a high boiling point or a metal alkoxide, or by further decreasing both terminals through combining produced polymer terminals with a diisocyanate and, from a composition ...