Title:
RAW MATERIAL FOR THE PRODUCTION OF HEAT-RESISTANT RESIN, HEAT-RESISTANT RESIN AND PROCESS FOR THE PRODUCTION OF THE RESIN
Document Type and Number:
WIPO Patent Application WO/1997/011978
Kind Code:
A1
Abstract:
N-Cyclohexylmaleimide having a cyclohexylaminosuccinic anhydride content of 0.001 to 1 wt.% is used as the main raw material for the production of heat-resistant resins. The resins are produced by a process of copolymerizing the above material with at least one monomer copolymerizable therewith which is characterized by the use of a monomer having a low yellowness, the addition of a compound which can inhibit the evaporation of the non-radical compounds contained in the monomer through reactions, the addition of an antioxidant, the use of a solvent containing alcohol, or the presence of a non-radical-polymerizable acid anhydride or carboxylic acid. The heat-resistant resins produced by the use of the above raw material or the above process are excellent in transparency, i.e., less discolorable, even when an increased amount of N-cyclohexylmaleimide is used for the purpose of imparting more excellent heat resistance. Accordingly, the heat-resistant resins can be suitably used in the fields necessitating both a low discolorability and a high heat resistance.
Inventors:
KANTO TERUYUKI (JP)
UEDA KENICHI (JP)
FUJIOKA KAZUMI (JP)
KISHINO KAZUO (JP)
UEDA KENICHI (JP)
FUJIOKA KAZUMI (JP)
KISHINO KAZUO (JP)
Application Number:
PCT/JP1996/002763
Publication Date:
April 03, 1997
Filing Date:
September 25, 1996
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND (JP)
KANTO TERUYUKI (JP)
UEDA KENICHI (JP)
FUJIOKA KAZUMI (JP)
KISHINO KAZUO (JP)
KANTO TERUYUKI (JP)
UEDA KENICHI (JP)
FUJIOKA KAZUMI (JP)
KISHINO KAZUO (JP)
International Classes:
C08F220/18; C08F222/40; (IPC1-7): C08F222/40; C08F220/14
Foreign References:
JPH05310843A | 1993-11-22 | |||
JPH0586105A | 1993-04-06 | |||
JPH03170515A | 1991-07-24 | |||
JPH0641249A | 1994-02-15 | |||
JP6088971B2 | 2017-03-01 | |||
JPH05247145A | 1993-09-24 | |||
JPH06116331A | 1994-04-26 | |||
JPH0472302A | 1992-03-06 |
Other References:
See also references of EP 0794201A4
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