Title:
NORBORNENE-BASED POLYMER AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3465335
Kind Code:
B2
Abstract:
PURPOSE: To obtain the subject polymer excellent in transparency, heat resistance, mechanical strength, moisture resistance and moldability by addition polymerization of a specific norbornene-based compound in the presence of a palladium catalyst.
CONSTITUTION: This polymer 0.1-10dl/g in intrinsic viscosity [ηinh] made up of structural unit of formula II is obtained by addition polymerization, in the presence of a palladium catalyst, of a norbornene-based compound of formula I [A and B are each H or a 1-10C hydrocarbon; X and Y are each H, a 1-10C hydrocarbon, a halogen, (CH2)COOR1 (R1 is a 1-20C hydrocarbon; (n) is 0-10), etc.] (pref. 8-methyl-8-carboxymethyltetracyclo[4,4,0,12,517,10-]-3-dodecene) or its mixture with another comonomer.
Inventors:
Tatsuya Sakai
Yasuo Matsuki
Noboru Ohshima
Yasuo Matsuki
Noboru Ohshima
Application Number:
JP1141194A
Publication Date:
November 10, 2003
Filing Date:
January 06, 1994
Export Citation:
Assignee:
JSR Corporation
International Classes:
C08F32/00; C08F32/04; (IPC1-7): C08F32/04
Domestic Patent References:
| JP762028A | ||||
| JP5239148A | ||||
| JP5334890A |