发明名称 |
Process for preparing a stable dispersion of a polymer in a polyol and its use in the production of high resilience polyurethane foam |
摘要 |
A stable dispersion of a polymer in a polyol is prepared by reacting an organic polyisocyanate with a short-chain polyol in a high molecular weight polyol containing a relatively high primary hydroxyl group content, the ratio of the content of primary hydroxyl groups in the short-chain polyol to that in the high molecular weight polyol being at least a critical lower limit of about 3.5. The reaction is further carried out in the presence of a small proportion of water to achieve a reduction in the viscosity of the resulting dispersion. The dispersion is used in preparing high resilience polyurethane foam having desirable physical properties and which is of utility in a wide variety of cushioning applications.
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申请公布号 |
US4497913(A) |
申请公布日期 |
1985.02.05 |
申请号 |
US19830499651 |
申请日期 |
1983.05.31 |
申请人 |
OLIN CORPORATION |
发明人 |
RAES, MAURICE C.;O'CONNOR, JAMES M.;ROSIN, MICHAEL L. |
分类号 |
C08G18/00;C08G18/08;C08G18/40;C08G18/65;C08G18/66;(IPC1-7):C08G18/65;C08K5/05;C08K5/06 |
主分类号 |
C08G18/00 |
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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