发明名称 |
Verfahren zur Herstellung von Urethan- oder Urethan- und Isocyanuratgruppen enthaltenden Hartschaumstoffen und Treibmittel enthaltende Emulsionen hierfür |
摘要 |
The invention relates to a process for the preparation of rigid foams containing urethane groups or urethane and isocyanurate groups, by reacting … … a) organic and/or modified organic polyisocyanates with … b) at least one relatively high-molecular-weight compound containing at least two reactive hydrogen atoms, and optionally … c) low-molecular-weight chain extenders and/or crosslinking agents,… in the presence of … d) blowing agents, … e) catalysts and optionally … f) assistants and/or additives, … where the blowing agent (d) used is at least one vinylfluoroalkane of the formula CH2=CH-CnF2n+1 in which n is an integer from 1 to 6 (di), or mixtures of at least one such vinylfluoroalkane (di) and at least one further physical and/or chemical blowing agent (dii) which is different from (di), and to blowing agent-containing emulsions which contain at least one vinylfluoroalkane and at least one formative component (a), (b), (c) or (b) and (c). |
申请公布号 |
DE59207652(D1) |
申请公布日期 |
1997.01.23 |
申请号 |
DE1992507652 |
申请日期 |
1992.06.20 |
申请人 |
BASF AG, 67063 LUDWIGSHAFEN, DE |
发明人 |
VOLKERT, OTTO, DR., W-6719 WEISENHEIM, DE |
分类号 |
C08G18/08;C08G18/00;C08G18/40;C08G18/65;C08G18/66;C08G101/00;C08J9/14;(IPC1-7):C08J9/14 |
主分类号 |
C08G18/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|