US 10,273,390 B2 · Adhesion promoter compositions and primer compositions for metal-plastic hybrid components

Abstract

The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive.

Claims8

Dependent claims

An adhesion promoter composition, comprising:

a) at least one polymer A selected from the group consisting of at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins, and mixtures thereof;
and
b) at least one hotmelt adhesive comprising a copolyamide, at least one blocked polyisocyanate and at least one epoxy component,
wherein:
the copolyamide of the hotmelt adhesive b) is different from the polyamide resins of the polymer A;
and
the epoxy component of the hotmelt adhesive b) is different from epoxy resins of the polymer A.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/764,408Filed 29 Jan 2014

Priority

DE 10 2013 201 39229 Jan 2013

Published

US 2015/0361316 A117 Dec 2015

Granted

30 Apr 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification32 codes

C09J 163/00
Adhesives based on epoxy resins
B32B 7/12
Interconnection of layers: using interposed adhesives or interposed materials with bonding properties
B32B 15/08
Comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin
B32B 15/092
Of synthetic resin: comprising epoxy resins

Adhesion promoter compositions and primer compositions for metal-plastic hybrid components

Life of this patent

Adhesion promoter compositions and primer compositions for metal-plastic hybrid components

Life of this patent

Abstract

Claims8