Metal/plastic hybrid structural parts
AssigneesRehau AG & Co., Huntsman Advanced Materials (Switzerland) GmbH
InventorsDragan Griebel, Marcel Sommer
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Abstract
The invention relates to a structural part that has a metal component, a plastic component and a bonding agent system interconnecting the metal component and the plastic component. The invention is characterized in that the bonding agent system consists of a plastic bonding agent or of a plastic bonding agent combined with a primer, the plastic bonding agent being a polyester, a polyurethane or an epoxide that is modified with a diene and/or a polyene. The invention also relates to a method for producing said structural part.
Claims19
A method for the manufacture of a structural part comprising a metal component and a plastic component, comprising the following steps:
- (a) providing the metal component, wherein the metal component is coated with a precured bonding agent system on at least one side;
- (b) introducing the metal component coated with the precured bonding agent system into an injection mold, such that the precured bonding agent layer faces a free volume in the mold, and
- (c) injection molding the plastic component onto the metal component, wherein the bonding agent system further cures,
- wherein the bonding agent system comprises a plastic bonding agent or a plastic bonding agent in combination with a primer, wherein the plastic bonding agent is selected from an epoxide, a polyurethane, or a polyester, wherein the plastic bonding agent is modified with a diene, a polyene or a combination thereof, and wherein the bonding agent system is completely cross-linked by thermal activation in two steps.
Structural part, comprising a metal component, a plastic component injected to the metal component and a bonding agent system connecting the metal component and the plastic component, characterized in that the bonding agent system comprises a plastic bonding agent or a plastic bonding agent in combination with a primer, wherein the plastic bonding agent is a polyester, a polyurethane, or an epoxide, wherein the plastic bonding agent is modified with a diene, a polyene or a combination thereof, wherein the bonding agent system is completely cross-linked by thermal activation in two steps.
Dependencies are inferred from the claim text.