Surface Protective Sheet
First Claim
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1. A surface protective sheet having a pressure-sensitive adhesive layer on at least one side of a substrate;
- wherein, the pressure-sensitive adhesive comprises 100 parts by weight of a styrene-isobutylene block copolymer, and 0 to 300 parts by weight of a softening agent and 0 to less than 20 parts by weight of a tackifying resin, both based on 100 parts by weight of the styrene-isobutylene block copolymer.
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Abstract
The present invention relates to a surface protective sheet having a pressure-sensitive adhesive layer on at least one side of a substrate; wherein, the pressure-sensitive adhesive contains 100 parts by weight of a styrene-isobutylene block copolymer, and 0 to 300 parts by weight of a softening agent and 0 to less than 20 parts by weight of a tackifying resin, both based on 100 parts by weight of the styrene-isobutylene block copolymer.
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Citations
8 Claims
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1. A surface protective sheet having a pressure-sensitive adhesive layer on at least one side of a substrate;
- wherein, the pressure-sensitive adhesive comprises 100 parts by weight of a styrene-isobutylene block copolymer, and 0 to 300 parts by weight of a softening agent and 0 to less than 20 parts by weight of a tackifying resin, both based on 100 parts by weight of the styrene-isobutylene block copolymer.
- View Dependent Claims (4, 5, 6, 7, 8)
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2. A surface protective sheet having a pressure-sensitive adhesive on at least one side of a substrate;
- wherein, the pressure-sensitive adhesive comprises 100 parts by weight of a thermoplastic elastomer composed of a styrene-isobutylene block copolymer and a styrene block copolymer or a styrene random copolymer other than the styrene-isobutylene block copolymer, and 0 to 300 parts by weight of a softening agent and 0 to less than 20 parts by weight of a tackifying resin, based on 100 parts by weight the thermoplastic elastomer.
- View Dependent Claims (3)
Specification