Process for producing polyglycolic acid resin composition

Details Process for producing polyglycolic acid resin composition Process for producing polyglycolic acid resin composition

2006-09-20

2010-06-01

Boykin, Terressa M (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

28, C528S271000, C528S361000, C560S179000, C560S185000, C562S587000

Reexamination Certificate

active

07728100

ABSTRACT:
A particulate polyglycolic acid resin composition suitable as a material for various forming processes in produced through a process characterized by comprising: cooling a polyglycolic acid resin composition having a residual glycolide content of at most 0.6 wt. % in a molten state by contact with an aqueous cooling medium to solidify the composition, and pelletizing the composition.

REFERENCES:
patent: 2005/0032947 (2005-02-01), Takahashi et al.
patent: 2000-302855 (1999-04-01), None
patent: 2000-302855 (2000-10-01), None
patent: 2001-064400 (2001-03-01), None
patent: 2005-053870 (2003-08-01), None
patent: 2005-246718 (2004-03-01), None
patent: 2005-162873 (2005-06-01), None
patent: 2005-246718 (2005-09-01), None
patent: WO2005/090438 (2005-09-01), None
International Search Report of PCT/JP2006/318581 mailed Oct. 17, 2006.
PCT International Preliminary Report on Patentability and Written Opinion of the International Searching Authority mailed Sep. 9, 2008, in English.

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