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:
Dec. 11, 1979
Filed:
May. 20, 1977
Takaho Kaneda, Chiba, JP;
Seiji Ishikawa, Ichihara, JP;
Hiroshi Daimon, Ichihara, JP;
Toshio Katsura, Ichihara, JP;
Tatsuaki Maeda, Ichihara, JP;
Tadahiro Hondo, Chiba, JP;
Ube Industries, Ltd., Yamaguchi, JP;
Abstract
Fibers of a copolyamide derived from a diamine component including 10 to 50 mole % of benzidine sulfone or 2,7-diaminophenanthridone and 90 to 50 mole % of p-phenylene diamine and a dicarboxylic acid component derived from a reactive derivative of terephthalic acid are disclosed. The fibers have an initial modulus of elasticity of at least 400 g/d and a tensile strength of at least 16 g/d. The fibers have in combination various desirable properties, such as excellent initial modulus of elasticity, high tensile strength, high knot strength, high heat resistance and good adhesiveness to various plastics, rubbers and adhesives, and they are valuably used in various industrial fields as fibrous reinforcers and for production of fiber-reinforced plastics and rubber products.