| 发明名称 |
Water-soluble pressure sensitive adhesives |
| 摘要 |
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. |
| 申请公布号 |
US8968772(B2) |
申请公布日期 |
2015.03.03 |
| 申请号 |
US201313753958 |
申请日期 |
2013.01.30 |
| 申请人 |
3M Innovative Properties Company |
发明人 |
Kantner Steven S. |
| 分类号 |
A61L15/16;A61F15/00;A61F13/20;C07C67/08;C09J177/00;A61F13/02;A61L15/58;C08F220/34;C09J133/14;C09J139/06;A61F13/00 |
主分类号 |
A61L15/16 |
| 代理机构 |
|
代理人 |
Weber Kevin W. |
| 主权项 |
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 about 80% by weight of the adhesive such that the adhesive is pressure sensitive, water-soluble, and increases in weight less than about 15% after two days at 75% relative humidity and 40° C. |
| 地址 |
St. Paul MN US |
