Multi-layered sealant
First Claim
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1. An article for establishing a seal between two substrates, comprising:
- (a) a conformable, compressible, melt flow-resistant foam core;
(b) a photo-activated, epoxy-containing bulk layer having a first and second major surface, said foam core bonded to the second major surface of said bulk layer; and
(c) an epoxy-containing adhesive layer bonded to the first major surface of said bulk layer, wherein upon photo-activation, said bulk layer has a different curing rate than said adhesive layer.
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Abstract
A multi-layered article for establishing a seal between two substrates. The multi-layered article includes a bulk layer and an adhesive layer. The layers of the article are generally epoxy-containing, photo-activated materials. Upon photo activation, the bulk layer and the adhesive layer have different curing rates. The article is suitable for adhering and sealing two substrates together. The article is particularly useful when at least one of the substrates is glass.
127 Citations
20 Claims
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1. An article for establishing a seal between two substrates, comprising:
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(a) a conformable, compressible, melt flow-resistant foam core;
(b) a photo-activated, epoxy-containing bulk layer having a first and second major surface, said foam core bonded to the second major surface of said bulk layer; and
(c) an epoxy-containing adhesive layer bonded to the first major surface of said bulk layer, wherein upon photo-activation, said bulk layer has a different curing rate than said adhesive layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A construction comprising:
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(I) an article for establishing a seal between two substrates, comprising;
(a) a conformable, compressible, melt flow-resistant foam core;
(b) a photo-activated, epoxy-containing bulk layer having a first and second major surface, said foam core bonded to the second major surface of said bulk layer; and
(c) an epoxy-containing adhesive layer bonded to the first major surface of said bulk layer, wherein upon photo-activation, said bulk layer has a different curing rate than said adhesive layer;
(II) a glass substrate bonded to the foam core; and
(III) a second substrate bonded to the adhesive layer, wherein the second substrate is selected from glass, metal, plastic, wood, and ceramic.
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20. A construction comprising:
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(I) an article for establishing a seal between two substrates, comprising;
(a) a conformable, compressible, melt flow-resistant foam core;
(b) a photo-activated, epoxy-containing bulk layer having a first and second major surface, said foam core bonded to the second major surface of said bulk layer; and
(c) an epoxy-containing adhesive layer bonded to the first major surface of said bulk layer, wherein upon photo-activation, said bulk layer has a different curing rate than said adhesive layer;
(II) a first substrate bonded to the foam core; and
(III) a second substrate bonded to the adhesive layer;
wherein the first substrate and the second substrate are each independently selected from glass, metal, plastic, wood, and ceramic substrates.
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Specification