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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.:

US 11613107 B1

PDFFull Text
Date of Patent:
Mar. 28, 2023

Filed:

Oct. 11, 2017

Multilayer interlayer having sound damping properties over a broad temperature range

Applicant:

Solutia Inc., St. Louis, MO (US);

Inventors:

Jun Lu, East Longmeadow, MA (US);

Wenjie Chen, Amherst, MA (US);

Assignee:

Solutia Inc., St. Louis, MO (US);

Attorney:

Michelle Bugbee

Primary Examiner:

Callie E Shosho

Assistant Examiner:

Krupa Shukla

Int. Cl.
CPC ...
B32B 27/30 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01); B32B 27/42 (2006.01); B32B 17/10 (2006.01); B32B 7/022 (2019.01); B32B 27/22 (2006.01); B60J 1/20 (2006.01); E06B 5/12 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 7/022 (2019.01); B32B 17/10761 (2013.01); B32B 27/22 (2013.01); B32B 27/30 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 27/42 (2013.01); B60J 1/2094 (2013.01); E06B 5/12 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2250/246 (2013.01); B32B 2270/00 (2013.01); B32B 2307/102 (2013.01); B32B 2307/536 (2013.01); B32B 2307/56 (2013.01); B32B 2419/00 (2013.01); B32B 2605/006 (2013.01);
Abstract

A polymer interlayer having improved sound insulation is disclosed. The polymer interlayer comprises: at least one soft layer wherein the soft layer comprises a poly(vinyl butyral) resin composition having a dispersity in composition of at least 0.40 and a plasticizer; and a stiff layer comprising a poly(vinyl butyral) resin composition and a plasticizer; wherein the polymer interlayer has a damping loss factor () (as measured by Mechanical Impedance Measurement according to ISO 16940) of at least about 0.15 measured at two or more different temperatures selected from 10° C., 20° C. and 30° C.

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