| 发明名称 |
METHOD FOR PRODUCING POLYESTER POLYOLS HAVING LOW AMOUNTS OF DIOXANE WASTE. |
| 摘要 |
<p>The invention relates to the production and use of polyester polyols, formed from at least one carboxylic acid hydride and diethylene glycol, wherein a specialized reaction control substantially suppresses the formation of 1.4-dioxan from diethylene glycol. The invention also relates to the polyesterpolyol obtainable according to this method, to a method for producing a polyurethane (PUR) or polyisocyanurate foam (PIR) material and to metal composite elements containing the PUR or PIR foam according to the invention.</p> |
| 申请公布号 |
MX2011004512(A) |
申请公布日期 |
2011.05.24 |
| 申请号 |
MX20110004512 |
申请日期 |
2009.11.03 |
| 申请人 |
BAYER MATERIALSCIENCE AG |
发明人 |
NEFZGER, HARTMUT;ROERS, ROLF;BAUER, ERIKA;VAN DE BRAAK, JOHANNES;HEINEMANN, THORSTEN;SCHLOSSMACHER, JUERGEN |
| 分类号 |
C08G18/00;C08G18/42;C08G63/00 |
主分类号 |
C08G18/00 |
| 代理机构 |
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