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:
Nov. 13, 2018
Filed:
Dec. 19, 2013
E. I. Du Pont DE Nemours and Company, Wilmington, DE (US);
Steven C. Pesek, Orange, TX (US);
Charles Anthony Smith, Vienna, WV (US);
E. I. DU PONT DE NEMOURS AND COMPANY, Wilmington, DE (US);
Abstract
Provided herein are glass laminates, preferably safety glass laminates, that comprise a polymeric interlayer sheet formed of an acid copolymer composition. The acid copolymer composition comprises an ethylene acid copolymer which, in turn, comprises copolymerized units of ethylene, about 5 to about 90 wt % of copolymerized units of a first α,β-unsaturated carboxylic acid having 3 to 10 carbon atoms; and optionally about 2 to about 40 wt % of copolymerized units of a derivative of a second α,β-unsaturated carboxylic acid having 3 to 10 carbon atoms. Optionally, a portion of the carboxylic acid groups of the copolymerized units of the ethylene acid copolymer are neutralized to form carboxylate salts. The acid copolymer composition also includes a hydroxyl-containing crosslinking agent and may also include an adjuvant. The glass laminates have superior resistance to creeping due to the properties of the acid copolymer composition, which may optionally be cross-linked.