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Title:
METHOD FOR MOLDING CYCLIC OLEFINIC POLYMER AND MOLDED PRODUCT
Document Type and Number:
Japanese Patent JP2006056920
Kind Code:
A
Abstract:

To provide a molded product of a cyclic olefinic polymer maintaining transparency and suppressing discoloring or fading.

The method for producing the molded product of the cyclic olefinic resin is carried out as follows. A polymer represented by general formula (7) or (8) {wherein, x and y denote each the copolymerization ratio and are each a real number satisfying (50/50)≤y/x≤(95/5); n denotes the number of substitution of substituents Q and is an integer of 0≤n≤2; R1s are each one or two or more kinds of (2+n)-valent groups selected from the group of 2-20C hydrocarbon groups; R2s are each one or two or more kinds of monovalent groups selected from a hydrogen atom and ≥1C to ≤10C structural groups composed of carbons and hydrogens; R3s are each one or two or more kinds of bivalent groups selected from the group of 2-10C hydrocarbon groups; and Qs are each one or two or more kinds of bivalent groups selected from structural groups represented by COOR4} is polymerized, then directly plasticized and molded with a molding machine without carrying out heat melting. The molded product is obtained by the method.


Inventors:
Uchida, Osamu
Kato, Hisahiro
Application Number:
JP2004000237246
Publication Date:
March 02, 2006
Filing Date:
August 17, 2004
Export Citation:
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Assignee:
MITSUI CHEMICALS INC
International Classes:
C08F232/00; C08F210/00; C08G61/08