Abrasive tool making process – material – or composition – With synthetic resin
Patent
1986-09-24
1988-03-08
Lieberman, Paul
Abrasive tool making process, material, or composition
With synthetic resin
51308, 51309, C09K 314
Patent
active
047297719
ABSTRACT:
An abrasive sheet having an excellent flexibility, mechanical strength and heat resistance comprises an aromatic imide polymer matrix and abrasive particles having an average size of 0.1 to 50 .mu.m and is prepared by evenly dispersing the abrasive particles in an organic polar solvent, mixing the resultant dispersion with a polymerization mixture consisting of an acid component comprising, as a major acid ingredient, a biphenyltetracarboxylic acid or an dianhydride thereof with a diamine component comprising an aromatic diamine, while polymerizing the acid and diamine components at 0.degree. C. to 80.degree. C. into an aromatic polyamic acid, forming the resultant dope dispersion into a thin layer and solidifying the thin layer while imidizing the aromatic polyamic acid into a corresponding aromatic imide polymer.
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Kunimoto Akihiro
Takabayashi Seiichirou
Lieberman Paul
Thompson Willie J.
Ube Industries Ltd.
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