Acrylic adhesives having chemical resistance
Assignee3M Innovative Properties Company
InventorsDong-Wei Zhu, Peter J. Elliott, Donald B. Ketcham, Jingjing Ma, Michael L. Tumey
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Abstract
This disclosure is directed at specific acrylic PSA compositions that are capable of resisting a broad array of solvents. Acrylic PSA's primarily derived from C?1#191-C?4#191 acrylate monomers and functional acrylates exhibit a strong resistance to a wide array of solvents, including both polar and non-polar solvents.
Claims16
A composition comprising an acrylic pressure sensitive adhesive derived from the reaction product of:
- (a) about 20 percent by weight to about 60 percent by weight of a methyl acrylate,
- (b) about 40 percent by weight to about 80 percent by weight of a monomer comprising ethyl acrylate, propyl acrylate, butyl acrylate, or combinations thereof,
- (c) about 0.2 percent by weight to about 5 percent by weight of a functional acrylate monomer, and
- (d) a crosslinking agent.
An article comprising an acrylic pressure sensitive adhesive assembly having a substrate and an acrylic pressure sensitive adhesive layer disposed on at least a portion of a surface of the substrate, wherein the acrylic pressure sensitive adhesive is the reaction product of:
- (a) about 20 percent by weight to about 60 percent by weight of a methyl acrylate,
- (b) about 40 percent by weight to about 80 percent by weight of a monomer comprising ethyl acrylate, propyl acrylate, butyl acrylate, or combinations thereof,
- (c) about 0.2 to about 5 percent by weight of a functional acrylate monomer, and
- (d) a crosslinking agent.
A method comprising polymerizing (a) about 20 percent by weight to about 60 percent by weight of a methyl acrylate, (b) about 40 percent by weight to about 80 percent by weight of a monomer comprising ethyl acrylate, propyl acrylate, butyl acrylate, or combinations thereof, and (c) about 0.2 percent by weight to about 5 percent by weight of a functional acrylate monomer.
Dependencies are inferred from the claim text.