Patent · US Expired

Soft textile coatings resembling napa leather

US4035213A · kind A · utility

33Cited by

7References

5Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Wilhelm Thoma · Leverkusen, DE
Josef Pedain · Cologne, DE
Jurgen Grammel · Cologne, DE
Antonio De Julian Aguado · Tarragona, ES

Key dates

Filing date	Dec 3, 1975
Grant date	Jul 12, 1977
Priority date	—
Expiry date	Dec 3, 1995

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31594
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

This invention relates to the coating of textile sheets with polyurethane pastes by the reversal process for producing very soft coating articles with a hand resembling that of napa leather. The particular properties of the coating are obtained by using bonding pastes which contain a mixture which can be cross-linked by the action of heat, consisting of polyurethane hydrazodicarbonamides and melamine-formaldehyde resins and/or urea-formaldehyde resins.

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