Water-soluble pressure sensitive adhesives

US8968772B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8968772-B2
Application numberUS-201313753958-A
CountryUS
Kind codeB2
Filing dateJan 30, 2013
Priority dateApr 28, 2009
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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  2. Abstract

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Abstract

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A water-soluble pressure sensitive adhesive comprises a homogeneous blend comprising (a) a polymer selected from the group consisting of N-vinyl caprolactam homopolymers, N-vinyl pyrrolidone copolymers, and mixtures thereof and (b) a non-volatile plasticizer comprising a monohydric or polyhydric alcohol having hydrophilic-lipophilic balance of about 2 to about 10. The N-vinyl pyrrolidone copolymers comprise about 60% or less by weight N-vinyl pyrrolidone.

First claim

Opening claim text (preview).

I claim: 1. An adhesive comprising a homogeneous blend comprising: (a) a polymer selected from the group consisting of N-vinyl caprolactam homopolymers, N-vinyl pyrrolidone copolymers, and mixtures thereof, the N-vinylpyrrolidone copolymers comprising about 60% or less by weight N-vinyl pyrrolidone; and (b) a non-volatile plasticizer comprising a monohydric alcohol having hydrophilic-lipophilic balance of about 4 to about 9; wherein the plasticizer comprises from about 33% to…

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What does patent US8968772B2 cover?
A water-soluble pressure sensitive adhesive comprises a homogeneous blend comprising (a) a polymer selected from the group consisting of N-vinyl caprolactam homopolymers, N-vinyl pyrrolidone copolymers, and mixtures thereof and (b) a non-volatile plasticizer comprising a monohydric or polyhydric alcohol having hydrophilic-lipophilic balance of about 2 to about 10. The N-vinyl pyrrolidone copoly…
Who is the assignee on this patent?
3M Innovative Properties Co
What technology area does this patent fall under?
Primary CPC classification C09J139/06. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).