Bilaminate polymer coated metal strip and method for manufacture thereof
First Claim
1. A process for the manufacture of a bilaminate coated metal substrate comprising:
- (a) preparing the metal substrate for application of adhesives thereto;
(b) applying a first activable adhesive to a first area of the substrate which is to be coated by a first layer of a thermosetting polymer;
(c) activating the adhesive to ready the substrate for application of the thermosetting polymer;
(d) applying the thermosetting polymer to the first area to form the first layer;
(e) heating the thermosetting polymer to cure it;
(f) applying a second activable adhesive to a second area of the substrate which is to be coated by a second layer of a thermoplastic polymer;
(g) activating the second adhesive; and
(h) applying the thermoplastic polymer to the second area to form the second layer whereby a bilaminate metal substrate having the first layer chemically bonded thereto and the second layer chemically bonded to the second area of the substrate is produced.
3 Assignments
0 Petitions
Accused Products
Abstract
A metal substrate having a first thermosetting elastomer layer and a second thermoplastic layer, both layers being chemically bonded to the substrate, and a method of manufacture therefor. Preferably, the first layer is extruded EPDM which is bonded to the substrate by with a heat-activable polyisocyanate adhesive and the second layer is extruded PVC which is bonded to the substrate by a heat-activable modified acrylic adhesive. Flock may be chemically bonded to a portion of the EPDM. An automotive trim product is disclosed. The preferred method of manufacture is a continuous process involving the steps of applying EPDM adhesive to the substrate; heat activating the adhesive; extruding the EPDM onto the substrate; applying PVC adhesive to the substrate; heating the partially coated substrate to concomitantly activate the PVC adhesive and cure the EPDM; and then extruding the PVC onto the substrate.
54 Citations
16 Claims
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1. A process for the manufacture of a bilaminate coated metal substrate comprising:
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(a) preparing the metal substrate for application of adhesives thereto; (b) applying a first activable adhesive to a first area of the substrate which is to be coated by a first layer of a thermosetting polymer; (c) activating the adhesive to ready the substrate for application of the thermosetting polymer; (d) applying the thermosetting polymer to the first area to form the first layer; (e) heating the thermosetting polymer to cure it; (f) applying a second activable adhesive to a second area of the substrate which is to be coated by a second layer of a thermoplastic polymer; (g) activating the second adhesive; and (h) applying the thermoplastic polymer to the second area to form the second layer whereby a bilaminate metal substrate having the first layer chemically bonded thereto and the second layer chemically bonded to the second area of the substrate is produced. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A process for the manufacture of a bilaminate coated metal substrate comprising:
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(a) preparing the substrate for application of adhesives thereto; (b) applying a first activable adhesive to a first area of the substrate which is to be coated by a first layer of a thermosetting polymer; (c) activating the adhesive to ready the substrate for application of the thermosetting polymer; (d) applying the thermosetting polymer to the first area to form the firs layer; (e) applying a second heat activable adhesive to a second area of the substrate which is to be coated by a second layer of a thermoplastic polymer; (f) heating the substrate obtained in step (e) to cure the thermosetting polymer and to activate the second adhesive; and (g) applying the thermoplastic polymer to the second area whereby a bilaminate metal substrate having the first layer chemically bonded thereto and the second layer chemically bonded to the second area of the substrate is produced. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification