Adhesive Substance, in Particular for Encapsulating an Electronic Assembly
First Claim
1. An adhesive for encapsulating an electronic arrangement with respect to permeants, comprising(a) at least one copolymer comprising at least isobutylene or butylene as comonomer and at least one comonomer which has a softening temperature of greater than 40°
- C.,(b) at least one partly hydrogenated tackifier resin,(c) at least one reactive resin based on acrylates or methacrylates having a softening temperature of less than 40°
C., and(d) at least one kind of a photoinitiator for initiating free-radical curing.
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Accused Products
Abstract
The invention relates to an adhesive substance, in particular for encapsulating an electronic assembly against permeates, said substance comprising: (a) at least one copolymer containing at least isobutene or butene as comonomer types and at least one comonomer type which, when regarded as a hypothetical homopolymer, has a softening temperature greater than 40° C.; (b) at least one type of an at least partially hydrogenated adhesive resin; (c) at least one acrylate- or methacrylate-based type of reactive resin with a softening temperature less than 40° C., preferably less than 20° C.; and (d) at least one type of photoinitiator for initiating radical curing.
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Citations
22 Claims
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1. An adhesive for encapsulating an electronic arrangement with respect to permeants, comprising
(a) at least one copolymer comprising at least isobutylene or butylene as comonomer and at least one comonomer which has a softening temperature of greater than 40° - C.,
(b) at least one partly hydrogenated tackifier resin, (c) at least one reactive resin based on acrylates or methacrylates having a softening temperature of less than 40°
C., and(d) at least one kind of a photoinitiator for initiating free-radical curing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification