Patent · US Active

Multilayer interlayer having sound damping properties over a broad temperature range

US9809010B2 · kind B2 · utility

2Cited by

30References

20Claims

0Family size

Assignee

Soliton, LLC · US

Inventors

Jun Lu · East Longmeadow, US
Wenjie Chen · Lo Wu, CN

Key dates

Filing date	Oct 13, 2015
Grant date	Nov 7, 2017
Priority date	—
Expiry date	Nov 21, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB32B2605/006
WIPO fieldSurface technology, coating
WIPO sectorChemistry

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 (η) (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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.