发明名称 |
Ultra high solids vinyl acetate-ethylene and vinyl acetate homopolymer emulsions |
摘要 |
A process for the production of ethylene vinyl acetate based polymer emulsions having solids levels greater than about 65% by weight comprising the steps of: i) providing a polymer seed selected from the group consisting of vinyl acetate, ethylene vinyl acetate, acrylic, vinyl-acrylic and styrene (meth) acrylic having a particle size of 0.15 to 2.5 microns; ii) polymerizing vinyl acetate and ethylene monomers in the presence of 5 to 15% by weight of the final emulsion of said polymer seed; said polymerization of step (ii) being carried out in the presence of a surfactant system comprising polyvinyl alcohol and a nonionic emulsifier.
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申请公布号 |
US6001916(A) |
申请公布日期 |
1999.12.14 |
申请号 |
US19980170917 |
申请日期 |
1998.10.13 |
申请人 |
NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION |
发明人 |
WALKER, JAMES L.;KUKKALA, PRAVIN |
分类号 |
C08F2/16;C08F255/02;C08F263/04;C08F265/04;C09J151/00;(IPC1-7):C08F2/16 |
主分类号 |
C08F2/16 |
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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