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:
Jan. 30, 2018
Filed:
Apr. 01, 2016
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Hirokazu Wakabayashi, Chiyoda-ku, JP;
Hiroshi Shimoda, Chiyoda-ku, JP;
ASAHI GLASS COMPANY, LIMITED, Chiyoda-ku, JP;
Abstract
To provide a manufacturing method of a composite film for laminated glass, the method enabling the high-yield manufacture of the composite film that causes less appearance failure in the obtained laminated glass, while ensuring smooth workability. A manufacturing method of a composite film composed of a resin intermediate film and a plastic film for laminated glass, including: feeding the resin intermediate film with 0.04 to 0.4 N/cm tension and the plastic film, between a two rolls whose surface temperatures are 25 to 50° C., and pressing these to obtain a laminate; and feeding the laminate between a third roll whose surface temperature is 60° C. or higher and lower than Tg of a resin in the plastic film and a fourth roll whose surface temperature is lower than this by 15 to 30° C., so as to bring the plastic film into contact with the third roll, and pressing the laminate.