发明名称 |
WERKWIJZE VOOR HET BEREIDEN VAN EEN STABIEL, VEERKRACHTIG POLYESTERSCHUIM, ALSMEDE DAARMEDE VERKREGEN VOORWERP. |
摘要 |
Resilient polyester foam materials. Acyl halide, polyol, and polyhydroxy cross-linking agent are reacted in the presence of alkali metal carbonate to prepare the resilient polyester foams. A process similar to that used in the one-shot preparation of polyurethane foams is used. Preferred reactants are adipyl chloride, quadrafunctional polyol based on pentaerythritol, propoxylated pentaerythritol cross-linking agent, and sodium carbonate. The resilient polyester foams find use in products such as catamenial tampons. |
申请公布号 |
NL182151(B) |
申请公布日期 |
1987.08.17 |
申请号 |
NL19770012067 |
申请日期 |
1977.11.02 |
申请人 |
THE PROCTER & GAMBLE COMPANY TE CINCINNATI, OHIO, VER. ST. V. AM. |
发明人 |
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分类号 |
C08G63/00;A61F13/20;A61L15/42;C08G63/12;C08G63/16;C08G63/668;C08J9/00;C08J9/02 |
主分类号 |
C08G63/00 |
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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