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公开(公告)号:US5407963A
公开(公告)日:1995-04-18
申请号:US257407
申请日:1994-06-09
CPC分类号: C08J9/0061 , C08J9/149 , C08J2361/06 , C08J2471/00
摘要: This invention relates to the production of low density resol foams from resol resins. The phenolic foams have a density of 2.0 pounds per cubic foot or less and are produced with a blended surfactant.
摘要翻译: 本发明涉及从甲阶酚醛树脂生产低密度泡沫塑料。 酚醛泡沫体具有2.0磅/立方英尺或更小的密度,并且用共混表面活性剂制备。
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公开(公告)号:US5441992A
公开(公告)日:1995-08-15
申请号:US257406
申请日:1994-06-09
IPC分类号: C08J9/14
CPC分类号: C08J9/149 , C08J2361/06
摘要: This invention relates to the production of low density resol foams from resol resins. The foams have a density of 2.0 pounds per cubic foot or less and are produced with a blowing agent of low boiling point HCFCs and perfluoroalkane.
摘要翻译: 本发明涉及从甲阶酚醛树脂生产低密度泡沫塑料。 泡沫具有2.0磅/立方英尺或更小的密度,并且用低沸点氟氯烃和全氟烷烃的发泡剂生产。
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