Title:
POLYOXYMETHYLENE COPOLYMER AND MOLDED ARTICLE THEREOF
Document Type and Number:
WIPO Patent Application WO/2002/077049
Kind Code:
A1
Abstract:
A polyoxymethylene copolymer obtained by copolymerizing trioxane with 1,3-dioxolane in a molar ratio of 100/(8-20), characterized by having the following properties: (i) the crystallization time at 143 °C is 10 to 2,000 seconds; (ii) the number of cycles in a folding endurance test is 30 to 1,000; and (iii) the thermal stability in residence is 40 minutes or longer. Also provided is a molded article formed from the copolymer. The polyoxymethylene copolymer is excellent in folding endurance and thermal stability and has satisfactory moldability.
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Inventors:
NAKAMURA TAKAHIRO (JP)
FURUKAWA MASANORI (JP)
OKAMURA AKIRA (JP)
NAKAYA DAIGO (JP)
MASUMOTO ISAMU (JP)
FURUKAWA MASANORI (JP)
OKAMURA AKIRA (JP)
NAKAYA DAIGO (JP)
MASUMOTO ISAMU (JP)
Application Number:
PCT/JP2002/002920
Publication Date:
October 03, 2002
Filing Date:
March 26, 2002
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
NAKAMURA TAKAHIRO (JP)
FURUKAWA MASANORI (JP)
OKAMURA AKIRA (JP)
NAKAYA DAIGO (JP)
MASUMOTO ISAMU (JP)
NAKAMURA TAKAHIRO (JP)
FURUKAWA MASANORI (JP)
OKAMURA AKIRA (JP)
NAKAYA DAIGO (JP)
MASUMOTO ISAMU (JP)
International Classes:
C08G2/18; C08K5/3492; C08L59/04; (IPC1-7): C08G2/18; C08J5/18; C08K3/22; C08K5/3492; C08L59/04
Foreign References:
| JPH07330848A | 1995-12-19 |
Other References:
See also references of EP 1275671A4
Attorney, Agent or Firm:
Ohshima, Masataka (Yotsuya 4-chome Shinjuku-ku, Tokyo, JP)
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