发明授权
- 专利标题： Process for the production of colored polyurethane foams
- 专利标题（中）： 彩色聚氨酯泡沫的生产工艺
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申请号： US422063申请日： 1973-12-05
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公开(公告)号： US3994835A公开(公告)日： 1976-11-30
- 发明人: Karlheinz Wolf , Konrad Nonn , Reinhold Hornle , Hans Unterbirker , Jurgen Koerner
- 申请人： Karlheinz Wolf , Konrad Nonn , Reinhold Hornle , Hans Unterbirker , Jurgen Koerner
- 申请人地址： DT Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DT Leverkusen
- 优先权： DT2259435 19721205
- 主分类号： C08G18/00
- IPC分类号： C08G18/00 ; C08G18/38 ; C08G18/65 ; C09B67/46 ; C09B69/10 ; D06P3/00 ; C08G18/14 ; C08G18/30
摘要：
Dispersions of dyestuffs which contain at least one free amino or hydroxyl group capable of reacting with isocyanates under the conditions of polyaddition and liquids in which the dyes are soluble to an extent less than 2 % are suitable for the production of colored polyurethane foams. The dye dispersions can be added before or during the polyaddition reaction.
公开/授权文献
- US6104656A Sense amplifier control circuit in semiconductor memory 公开/授权日：2000-08-15
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