发明名称 |
Nonwovens with binders of high wet/dry tensile strength ratio |
摘要 |
This invention is directed to an improvement in a crosslinkable vinyl acetate/vinyl versatate based polymeric binder for use in nonwoven applications. The improvement in the binder for nonwoven and, particularly premoistened wipes, resides in a polymer comprised of vinyl acetate and vinyl versatate produced by either of the methods: batch polymerization where polymerized units of an in situ or internal crosslinking (polyolefinically unsaturated) monomer are incorporated into the polymer; or, delayed addition of vinyl versatate where the vinyl versatate is polymerized into the polymer by delayed addition such that vinyl versatate rich polymer segments are formed; and, preferably, polymerized units of a polyolefinically unsaturated monomer are incorporated into the polymer. |
申请公布号 |
EP1589139(B1) |
申请公布日期 |
2009.01.14 |
申请号 |
EP20050008550 |
申请日期 |
2005.04.19 |
申请人 |
WACKER CHEMICAL CORPORATION |
发明人 |
GOLDSTEIN, JOEL ERWIN;PANGRAZI, RONALD JOSEPH |
分类号 |
C08F218/08;D04H1/64;C08F218/04;C08F218/10;D04H1/58;D06M15/333 |
主分类号 |
C08F218/08 |
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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