Patent · US Expired

Process to manufacture three dimensionally shaped substrate for sound abatement

US7285316B2 · kind B2 · utility

27Cited by

26References

10Claims

0Family size

Assignees

Bayer MaterialScience AG · DE
BAYER HEALTHCARE LLC · DE

Inventors

Sven Meyer-Ahrens · Leverkusen, DE
Thomas J. Matwiczyk · Bloomfield Hills, US
Bin Lee · Dorpsstraat, US
Michael Blaszkiewicz · Gibsonia, US
Walter Guarnieri · Leverkusen, DE

Key dates

Filing date	May 14, 2004
Grant date	Oct 23, 2007
Priority date	—
Expiry date	Feb 23, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31551
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The present invention is directed to a process for the manufacture of three-dimensional acoustically sound automotive insulation parts. In particular, the process includes mixing a two component polyurethane resin, applying the resin to a substrate, molding the substrate and then trimming and demolding the resin applied substrate.

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