Aliphatic copolyester resin, a preparation method, an...

Details Aliphatic copolyester resin, a preparation method, an... Aliphatic copolyester resin, a preparation method, an...

2007-05-22

2007-05-22

Hess, Bruce H. (Department: 1774)

Stock material or miscellaneous articles

Thermal transfer donor

Specialized heat source contacting layer on support

C503S227000, C156S235000

Reexamination Certificate

active

10991658

ABSTRACT:
This invention relates to aliphatic polyesters having a controlled thermal decomposition, hydrolizability, and biodegradability, in which OH terminals and COOH terminals are decreased through a ring-opening polymerization of a lactone and lactide by a mono alcohol or a metal alkoxide, or by decreasing both terminals through combining polymer terminals with diisocyanate. From a composition containing the polyesters, this invention provides a controlled release composition for agriculture. From a resin primarily containing fatty acid cellulose ester derivatives, this invention provides a base film for a marking film without volatilization and plasticizer migration problems; a picture image formable heat-sensitive transfer recording material with excellent strippability, coloring concentration, and brightness; a conductive coating composition with excellent storage stability, adhesion, and conductivity; a single-liquid type coating for a moisture-curable graft copolymer, and a non-toxic and non-irritating coating composition with excellent dryability. The copolymers of this invention also have excellent heat and impact resistance.

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Database: CA 'Online!, Chemical Abstracts Service, Columbus, Ohio, US; retrieved from STN, database accession No. 128:127554/DN, HCAPLUS, XP002201467.

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