Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2011-08-23
2011-08-23
Yoon, Tae H (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S120000, C524S127000, C524S128000, C524S539000, C528S271000, C528S354000
Reexamination Certificate
active
08003721
ABSTRACT:
Polyglycolic acid and polylactic acid having a weight-average molecular weight of at most 50,000 are melt-kneaded in the presence of a thermal stabilizer to obtain a polyglycolic acid-based aliphatic polyester composition. The aliphatic polyester composition alleviates the too fast crystallizability of polyglycolic acid which has been problematic in forming or molding of polyglycolic acid alone or in combination with another thermoplastic resin, thus showing a crystallization speed which has been lowered and can be controlled in a wide range.
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Sato Hiroyuki
Suzuki Yoshinori
Watanabe Takahiro
Yamane Kazuyuki
Kureha Corporation
Wenderoth , Lind & Ponack, L.L.P.
Yoon Tae H
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