发明名称 |
MEHRSCHICHTIGES DRUCKHAFTGEBILDE MIT VERRINGERTER MIGRATION DES KLEBRIGMACHERS |
摘要 |
A multilayer PSA construction includes a facestock, a hazy, first adhesive layer adjacent the facestock, and a PSA layer adjacent the first adhesive layer, and is protected until use by a release liner. The first adhesive layer includes an immiscible blend of a first elastomer having a first glass transition temperature and forming a continuous phase, and a second elastomer forming a discontinuous phase. The second elastomer has a glass transition temperature greater than the first glass transition temperature. The first adhesive layer also contains a tackifying component, which is preferentially soluble in the discontinuous phase. The PSA layer has a composition different from the first adhesive layer and is formed of at least one tackified elastomer that provides a measurable third maximum glass transition temperature, which is less than the second glass transition temperature. The multilayer PSA construction exhibits reduced migration of tackifiers and plasticizers over time. |
申请公布号 |
DE69902395(D1) |
申请公布日期 |
2002.09.05 |
申请号 |
DE1999602395 |
申请日期 |
1999.09.23 |
申请人 |
AVERY DENNISON CORP., PASADENA |
发明人 |
KO, U.;CHUANG, K.;UGOLICK, RONALD |
分类号 |
C08L53/02;C09J7/02;C09J153/00;C09J153/02;(IPC1-7):C09J7/02 |
主分类号 |
C08L53/02 |
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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