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US 6,858,295 B2Granted
Pressure sensitive adhesive comprising vinylpyrrolidone
AssigneeBASF SE
InventorsHeiko Diehl, Karl-Heinz Schumacher, Ralf Fink, Martin Jung
Life of this patent
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Abstract
A pressure sensitive adhesive comprising a mixture of: a radiation-crosslinkable polymer A) composed of at least 40% by weight of C1 to C18 alkyl (meth)acrylates, and a polymer B) composed of at least 20% by weight of vinylpyrrolidone and of less than 40% by weight of C1 to C18 alkyl (meth)acrylates, wherein the fraction of the polymer B) in the mixture is less than 15% by weight, based on the sum of A)+B).
Claims17
A pressure sensitive adhesive comprising a mixture of:
- a radiation-crosslinkable polymer A) composed of at least 40% by weight of C1 to C18 alkyl (meth)acrylates, and
- a polymer B) composed of at least 20% by weight of vinylpyrrolidone and of less than 40% by weight of C1 to C18 alkyl (meth)acrylates,
- wherein the fraction of the polymer B) in the mixture is less than 15% by weight, based on the sum of A)+B).
Dependencies are inferred from the claim text.