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US 7,744,998 B2Granted
Plasticizer-resistant pressure-sensitive adhesive composition and adhesive article
Assignee3M Innovative Properties Company
InventorShojitsu Nakamuta
Life of this patent
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Abstract
There is provided a pressure-sensitive adhesive composition which has a high initial adhesive strength to an adherend containing a plasticizer and can maintain the adhesive strength even after long-term use. A plasticizer-resistant pressure-sensitive adhesive composition comprising a copolymer obtained by polymerizing a monomer mixture comprising (a) an aromatic-containing (meth)acrylate monomer, (b) a nitrogen-containing vinyl monomer, and (c) an alkyl(meth)acrylate monomer, an alkyl group of which has 4 to 14 carbon atoms.
Claims16
A pressure-sensitive adhesive article comprising:
- a) an adherend having a plasticizer;
- and
- b) a plasticizer-resistant pressure-sensitive adhesive composition comprising a copolymer comprising the reaction product of a monomer mixture comprising:
- i. 5 to 30% by weight of an aromatic-containing (meth)acrylate;
- ii. 30 to 70% by weight of a nitrogen-containing vinyl monomer;
- and
- iii. 20 to 50% by weight of an alkyl(meth)acrylate comprising an alkyl group having from 4 to 14 carbon atoms.
4 more elements
Dependencies are inferred from the claim text.