Stabilization of poly(hydroxy acid)s derived from lactic or glycolic acid

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United States of America Patent

PATENT NO 5382617
SERIAL NO

08107646

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Abstract

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Stabilization of poly(hydroxy acid)s, particularly poly(lactic acid), to thermal processing with selected boron compounds is disclosed. The most preferred stabilizer is boric oxide (B.sub.2 O.sub.3).

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Patent Owner(s)

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ECOLOGICAL CHEMICAL PRODUCTSCONCORD PLAZA NAAMANS BLDG SUITE 200 3500 SILVERSIDE ROAD WILMINGTON DE 19810

International Classification(s)

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  • 1993 Application Filing Year
  • C08K Class
  • 795 Applications Filed
  • 388 Patents Issued To-Date
  • 48.81 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19931994199519961997199819992000200120020255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baird, Richard L Wilmington, DE 2 3
Kelly, Jr William E Wilmington, DE 4 130

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  • 2 Citation Count
  • C08K Class
  • 4.32 % this patent is cited more than
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1923411147164411301 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 90020406080100120140160180200220240260

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