Patent · US Expired

Process and laminator for the continuous production of laminates of foam with facings

US4804425A · kind A · utility

17Cited by

4References

13Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Erwin Hoffmann · Leverkusen, DE
Hans-Dieter Pfeil · Wuppertal, DE
Werner Dietrich · Odenthal, DE
Rolf Bock

Key dates

Filing date	Jun 1, 1987
Grant date	Feb 14, 1989
Priority date	—
Expiry date	Jun 1, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/15
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

This invention relates to a process and a laminator for the continuous production of laminates of foam with facings. An upper facing and a lower facing and a web of meshwork are introduced into the foaming space of a laminator and a fluid reaction mixture is spread over the lower facing before it runs into the foaming space. The reaction mixture penetrates the web of meshwork as it foams up on its journey through the foaming space and becomes bonded to the facings.

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