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. 18, 2011
Filed:
Apr. 04, 2008
Applicants:
Uwe Keller, Bonn, DE;
Martin Steuer, Liederbach, DE;
Takashi Wakui, Okayama, JP;
Nobuhiro Moriguchi, Okayama, JP;
Inventors:
Uwe Keller, Bonn, DE;
Martin Steuer, Liederbach, DE;
Takashi Wakui, Okayama, JP;
Nobuhiro Moriguchi, Okayama, JP;
Assignees:
Kuraray Europe GmbH, Frankfurt am Main, DE;
Kuraray Co., Ltd., Okayama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 17/10 (2006.01); B32B 27/42 (2006.01); C03C 27/12 (2006.01); C08K 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
Interlayer films useful for laminated glass contain a polyvinyl acetal (A), at least on plasticizer (B), fumed silica (C) and at least one basic compound (D), wherein the difference of refractive index between fumed silica (C) and plasticized polyvinyl acetal (A+B) is 0.015 or less, and the weight ratio of C/(A+B) is 2.7-60/100.