发明名称 |
Aqueous pressure-sensitive adhesive composition and utilization thereof |
摘要 |
Provided are a pressure-sensitive adhesive (PSA) sheet having excellent foam repulsion resistance and an aqueous PSA composition suitable for preparing this sheet. The composition primarily comprises an acrylic polymer obtained by polymerizing a starting monomer material containing an alkyl(meth)acrylate as a main monomer and both acrylic acid and methacrylic acid. The acrylic polymer preferably has a weight average molecular weight of 65×104 to 100×104. The starting monomer material is preferred to further contain a silanol-forming monomer and polymerized without the silanol-forming monomer to produce a polymer having a gel fraction of 7 to 17 mass %. The post-crosslink PSA preferably has a gel fraction of 20 to 55 mass %. |
申请公布号 |
US8632880(B2) |
申请公布日期 |
2014.01.21 |
申请号 |
US20080274505 |
申请日期 |
2008.11.20 |
申请人 |
TAKAHASHI AKIKO;IKEYA MAMI;NITTO DENKO CORPORATION |
发明人 |
TAKAHASHI AKIKO;IKEYA MAMI |
分类号 |
B32B7/12 |
主分类号 |
B32B7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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