发明授权
US4418159A Process for the production of polyurethanes and a storable intermediate
product for carrying out this process
失效
用于生产聚氨酯的方法和用于实施该方法的可储存的中间产物
- 专利标题： Process for the production of polyurethanes and a storable intermediate product for carrying out this process
- 专利标题（中）： 用于生产聚氨酯的方法和用于实施该方法的可储存的中间产物
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申请号： US433198申请日： 1982-10-07
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公开(公告)号： US4418159A公开(公告)日： 1983-11-29
- 发明人: Werner Rasshofer , Richard Kopp , Reiner Paul
- 申请人： Werner Rasshofer , Richard Kopp , Reiner Paul
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX3141117 19811016
- 主分类号： C08G18/00
- IPC分类号： C08G18/00 ; C08G18/22 ; C08G18/24 ; C08G18/14
摘要：
Optionally-foamed polyurethanes are produced by reacting polyisocyanates with organic compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight in the range from 400 to 10,000, in the presence of activators corresponding to the general formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be the same or different and represent C.sub.1 -C.sub.20 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, C.sub.6 -C.sub.14 -aryl or C.sub.7 -C.sub.30 -alkaryl,X.sup.1 and X.sup.2 may be the same or different and represent halogen or a radical of the formula --OR.sup.5, --SR.sup.6 or ##STR2## with the proviso that X.sup.1 and X.sup.2 cannot both represent a halogen atom,R.sup.5, R.sup.6 and R.sup.7 may be the same or different and represent a C.sub.1 -C.sub.20 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, C.sub.6 -C.sub.14 -aryl or C.sub.7 -C.sub.30 -alkaryl and 1.ltoreq.x.ltoreq.4,and, optionally, in the presence of co-catalysts, blowing agents, chain-extending agents having a molecular weight of from 32 to 400 and other known auxiliaries and additives.
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