Patent · US Expired

Flocking adhesive for flexible substrates

US4535121A · kind A · utility

30Cited by

1References

11Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Riza N. Oezelli · Neuss, DE
Hans-Josef Hoffmann · Kempen, DE
Hartmut Lippert · Monheim, DE

Key dates

Filing date	Jun 20, 1984
Grant date	Aug 13, 1985
Priority date	—
Expiry date	Jun 20, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L63/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An adhesive for flocking elastomers, more especially apolar elastomers, such as EPDM. The adhesive contains an isocyanate-terminated polyurethane prepolymer and, as an adhesion promoter, a reaction product of an aromatic diisocyanate with a polyfunctional epoxide, particularly triglycidyl isocyanurate. The strength of adhesion and resistance of the bonds can be further increased by the addition of aromatic nitroso compounds, for example, 1,4-dinitrosobenzene.

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