发明名称 |
PROCESS FOR PREPARING AQUEOUS DISPERSIONS OF HYBRID POLYURETHANE PARTICLES |
摘要 |
Dispersions of hybrid polyurethane particles are made using miniemulsion techniques. An isocyanate-terminated prepolymer and a monomer are mixed and dispersed in an aqueous phase to form a dispersion of droplets. All droplets are polymerized and chain-extended in one step to form hybrid particles containing a polyurethane and a polymer of the monomer. This process provides a simple method of making hybrid particles, in which particle size and the number of particles is controlled in the mixing step. The hybrid particles often have a coreshell morphology, with the polyurethan being concentrated in the shell and the polymer being concentrated in the center of the particle. |
申请公布号 |
WO02055576(A3) |
申请公布日期 |
2003.07.24 |
申请号 |
WO2001US48174 |
申请日期 |
2001.11.02 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
BEDRI, ERDEM;DEBKUMAR, BHATTACHARJEE;SCHROCK, ALAN, K. |
分类号 |
C08G18/10;C08F257/02;C08F265/04;C08F279/02;C08F283/00;C08G18/00;C08G18/08;C08G18/12;C08G18/28;C08G18/40;C08G18/48;C08G18/66;C08G18/67;C08G18/75;C09D175/04 |
主分类号 |
C08G18/10 |
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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