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:
May. 27, 2014
Filed:
Dec. 28, 2010
Applicants:
Tatsuya Iwamoto, Kouka, JP;
Kohei Kani, Kouka, JP;
Inventors:
Tatsuya Iwamoto, Kouka, JP;
Kohei Kani, Kouka, JP;
Assignee:
Sekisui Chemical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 7/02 (2006.01); B32B 17/10 (2006.01); B32B 27/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an interlayer film for a laminated glass which can suppress bubble formation and bubble growth in the laminated glass. An interlayer filmfor a laminated glass includes a first layerand a second layerlaminated on one faceof the first layer. Each of the first layerand the second layercontains a polyvinyl acetal resin and a plasticizer. The polyvinyl acetal resin in the first layeris obtained by acetalizing a polyvinyl alcohol resin that has a degree of polymerization exceeding 3000.