发明名称 |
HYDROPHOBIC LOW-VISCOUS POLYOLS |
摘要 |
<p>A process for preparing hydrophobic polyols that includes reacting A) a mixture having an OH content of from 180 to 300 mg KOH/g, a viscosity at 23° C. of from 5000 to 20 000 mPas and an OH functionality of from 2.8 to 4.5 including from 5 to 20 wt. % of 3-pentadecadienylphenol, from 5 to 10 wt. % of 3-pentadecadienyl-recorcinol and from 1 to 5 wt. % of 2-methyl 3-pentadecadienylrecorcinol; with B) alkylene oxides (AO) with addition of the AO monomers onto the AO-reactive groups of component A); the ratio of the amounts of A) to B) being from 1:9 to 9:1; where the hydrophobic polyols have an OH number of from 140 to 220 mg KOH/g and a viscosity at 23° C. of from 1000 to 4000 mPas. The hydrophobic polyols can be used in polyurethane systems, in coatings, adhesive bonds, sealants or moulding compounds, which can be used to coat substrates.</p> |
申请公布号 |
EP1723187(B1) |
申请公布日期 |
2007.12.19 |
申请号 |
EP20050707388 |
申请日期 |
2005.02.15 |
申请人 |
BAYER MATERIALSCIENCE AG |
发明人 |
NIESTEN, MEIKE;REESE, JACK;SIMON, JOACHIM;RUTTMANN, GERHARD |
分类号 |
C08G18/48;C08G18/28;C08G18/76;C08G65/26;C09D175/04 |
主分类号 |
C08G18/48 |
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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