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:
Aug. 17, 1993
Filed:
Oct. 29, 1990
Hirokazu Inoguchi, Fukushima, JP;
Keiichi Kato, Fukushima, JP;
Nitto Boseki Co., Ltd., Fukushima, JP;
Abstract
The present invention provides a method for producing a glass cloth which is suitable as a reinforcing material for making resin laminates and which comprises subjecting filaments of glass fibers to a sizing treatment with a sizing agent containing at least one water-soluble film forming agent selected from the group consisting of an amine-modified epoxy resin, an ethylene oxide-added epoxy resin and ethylene oxide-added bisphenol A as film forming component, forming glass yarns from the thus treated filaments, weaving the glass yarns to make a glass cloth, washing the glass cloth with water until the loss of ignition of the sizing agent to the glass cloth reaches 0.25% by weight or less, and then treating this glass cloth with a solution of a surface treating agent.