Patent · US Active

Liquid-applied sound dampening

US7893149B2 · kind B2 · utility

6Cited by

11References

13Claims

0Family size

Assignee

Rohm and Haas Company · US

Inventors

Ann R. Hermes · Ambler, US
Andrew Swartz · Kutztown, US
Drew E. Williams · Blue Bell, US

Key dates

Filing date	Dec 20, 2007
Grant date	Feb 22, 2011
Priority date	—
Expiry date	Nov 5, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F230/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A liquid applied sound dampening composition with a binder having from 0.03% to 3% phosphorus present as copolymerized pendant phosphorus acid groups.

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