The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 1999
Filed:
Jul. 12, 1996
Hiroshi Akita, Wako, JP;
Hiroto Kobayashi, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An aromatic heterocyclic compound and an aromatic diamino compound are allowed to separately react with a dicarboxylic acid derivative in an organic solvent, thereby synthesizing two kinds of oligomers, and these two kinds of oligomers are allowed to react with each other in an organic solvent to synthesize a block copolymer precursor, or an aromatic heterocyclic compound, an aromatic diamino compound and a dicarboxylic acid derivative are allowed to react in an organic solvent, thereby synthesizing a random copolymer precursor. The block or random copolymer precursor and a matrix polymer are dissolved in an organic solvent, then, the solvent is removed from the solution, and the resulting coagulum is heated to induce a ring-closing reaction, thereby obtaining a molecular composite material in which the copolymer is dispersed finely and homogeneously in the matrix polymer.