Pressure sensitive adhesive comprising vinylpyrrolidone

Details Pressure sensitive adhesive comprising vinylpyrrolidone Pressure sensitive adhesive comprising vinylpyrrolidone

2005-02-22

2005-02-22

Nutter, Nathan M. (Department: 1711)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

C428S3550RA, C428S3550EN, C428S3550CN, C156S327000, C156S330900, C156S331500, C525S217000, C525S223000

Reexamination Certificate

active

06858295

ABSTRACT:
A pressure sensitive adhesive comprising a mixture of:a radiation-crosslinkable polymer A) composed of at least 40% by weight of C1to C18alkyl (meth)acrylates, and a polymer B) composed of at least 20% by weight of vinylpyrrolidone and of less than 40% by weight of C1to C18alkyl (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).

REFERENCES:
patent: 4181752 (1980-01-01), Martens et al.
patent: 4364972 (1982-12-01), Moon
patent: 5639811 (1997-06-01), Plamthottam et al.
patent: 6235363 (2001-05-01), Bilodeau
patent: 0 357 204 (1990-03-01), None
patent: 0 437 068 (1991-07-01), None
patent: WO 9104151 (1991-04-01), None

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