Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Patent
1998-12-03
2000-02-01
Wu, David W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
528 34, 528 14, 528 17, 528 21, 528 22, C08G 7724
Patent
active
060204508
ABSTRACT:
A room temperature curable fluoropolymer composition is provided which comprises (A) a straight chain fluoropolymer compound containing, in its backbone chain, at least one structure selected from a perfluoroalkylene structure and a perfluoropolyether structure and having a hydrolyzable silyl group at both ends of its molecular chain, (B) an organic compound having at least one carbonyl group per molecule, and (C) one compound selected from (C-1) an organic compound having at least one primary amino group per molecule and (C-2) a compound having at least one proton per molecule and having an acid dissociation constant (pKa) in water of 2 or less. Another room temperature curable composition is also provided which comprises said (A) component, (B') an organosilicon compound having at least two silanol groups per molecule, and (C') a condensation accelerator. These compositions are not only excellent in heat resistance, weatherability, electrical properties, processability, chemical resistance, solvent resistance and oil repellant properties, but also excellent in fast curability and deep-portion curability. A novel compound which is suitable as said fluoropolymer compound (A) is further provided.
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Arai Masatoshi
Kimura Tsuneo
Koike Noriyuki
Matsuda Takashi
Sakamoto Takafumi
Lu-Ruh Caixia
Shin-Etsu Chemical Co. , Ltd.
Wu David W.
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