Title:
ポリオキシメチレン共重合体およびその成形品
Document Type and Number:
Japanese Patent JP4172274
Kind Code:
B2
Abstract:
A polyoxymethylene copolymer which is a polyoxymethylene copolymer obtained by copolymerizing trioxane and 8 to 20 mol, per 100 mol of the trioxane, of 1,3-dioxolane and which (i) has a crystallization time period of 10 to 2,000 seconds at 143 DEG C, (ii) withstands 30 to 1,000 cycles of a bending durability test and (iii) has residence heat stability for 40 minutes or more, and a molded article formed of the copolymer. According to the present invention, there can be provided a polyoxymethylene copolymer excellent in bending durability and heat stability and excellent in moldability, and a molded article formed thereof.
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Inventors:
Naohiro Nakamura
Furukawa Masanori
Akira Okamura
Daigo Nakatani
Masumoto Isamu
Furukawa Masanori
Akira Okamura
Daigo Nakatani
Masumoto Isamu
Application Number:
JP2002576506A
Publication Date:
October 29, 2008
Filing Date:
March 26, 2002
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
C08G2/18; C08J5/00; C08K3/22; C08K5/3492; C08L59/04
Domestic Patent References:
| JP9085832A | ||||
| JP8325341A | ||||
| JP11012337A | ||||
| JP4339831A | ||||
| JP2000290336A | ||||
| JP2080416A | ||||
| JP5070537A | ||||
| JP8059767A | ||||
| JP2000086736A | ||||
| JP7090161A | ||||
| JP9278851A | ||||
| JP48016998A |
Attorney, Agent or Firm:
Masataka Oshima