| 发明名称 |
SULFUR-MODIFIED COPOLYETHER GLYCOLS, A METHOD FOR PREPARING THEM, AND POLYURETHANES PREPARED THEREFROM |
| 摘要 |
<p>TITLE Sulfur-Modified Copolyether Glycols, A Method for Preparing Them, and Polyurethanes Prepared Therefrom Copolyether glycols are modified 50 that they contain 1-25%, by weight of .beta.,.beta.'-dihydroxyalkyl sulfide moieties. These modified copolyether glycols have enhanced resistance to degradation by heat and oxygen. CH 1207</p> |
| 申请公布号 |
CA1222778(A) |
申请公布日期 |
1987.06.09 |
| 申请号 |
CA19820414160 |
申请日期 |
1982.10.26 |
| 申请人 |
DU PONT (E.I.) DE NEMOURS AND COMPANY |
发明人 |
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| 分类号 |
C08G65/28;C07C319/14;C07C323/12;C08G18/50;C08L71/02 |
主分类号 |
C08G65/28 |
| 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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