Title:
【発明の名称】熱可塑性ポリイミド系樹脂組成物
Document Type and Number:
Japanese Patent JP2796543
Kind Code:
B2
Abstract:
PURPOSE:To obtain the title composition improved in nonstickiness, mechanical strengths and sliding properties by adding a copolymer of 3,3,3-trifluoro-2- trifluoromethylpropene with 1,1-difluoroethylene to a specified thermoplastic polyimde resin. CONSTITUTION:A polyamic acid obtained by reacting 4,4-bis(3-aminophenoxy) biphenyl of formula I with pyromellitic acid is cyclized through dehydration to obtain a thermoplastic polyimide resin (A) comprising repeating units of formula II and having a melt viscosity of 0.35-0.80dl/g. 3,3,3-Trifluoro-2- trifluoromethylpropene is copolymerized with 1,1-difluoroethylene in a molar ratio of (1:9)to (9:1) at -15 to 80 deg.C to obtain a copolymer (B) having repeating units of formula III. 10-90 pts.wt. component B is added to 100 pts.wt. component A.
Inventors:
SATOJI FUMITADA
Application Number:
JP11944690A
Publication Date:
September 10, 1998
Filing Date:
May 09, 1990
Export Citation:
Assignee:
ENU TEI ENU KK
International Classes:
C08L79/08; C08L87/00; C08L27/12; (IPC1-7): C08L79/08; C08L27/12
Domestic Patent References:
| JP638455A | ||||
| JP5959764A | ||||
| JP3292365A | ||||
| JP3205451A |
Attorney, Agent or Firm:
Bunji Kamata