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US 11,560,497 B2Granted
Adhesive sheet
Assignee3M Innovative Properties Company
InventorAizoh Sakurai
Life of this patent
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Abstract
An adhesive sheet comprising a base material, a primer layer, and an adhesive layer cured by radiation, arranged in this order. The primer layer comprises a (meth)acrylic polymer having a nitrogen-containing group and a polymer having a polyoxyalkylene group.
Claims8
An adhesive sheet comprising, in order:
- a base material being polyvinyl chloride;
- a primer layer comprising
- a polymer having a polyoxyalkylene group, and
- a (meth)acrylate polymer having an amino group derived from a monomer represented by formula (I):
- wherein:
- R1 is —H or —CH3,
- R2 and R3 are independently selected from —H and a C1-22 alkyl, and
- n is an integer selected from 1 to 100;
- and
- a silicone-based adhesive layer,
- wherein curing the adhesive sheet with an electron beam radiation generates radicals within the silicone-based adhesive layer and the radicals react with the primer layer.
8 more elements
Dependencies are inferred from the claim text.