| 摘要 |
PURPOSE:To obtain a foam which has excellent cushioning characteristics, etc. and is inexpensive, by mixing a polyether polyol, an org. isocyanate, a blowing agent, a catalyst, etc., with a mixture of a satd. hydrocarbon and an OH group-contg. monomer and expanding the mixture. CONSTITUTION:A 5C or higher satd. hydrocarbon (e.g. liquid paraffin or hexane) is mixed with an OH group-contg. monomer (e.g. glycerol or trimethylolpropane) in a weight ratio of 100:100-100:4. 20-150pts.wt. polyether polyol, a necessary amount of an org. isocyanate (e.g. tolylene diisocyanate), a blowing agent (e.g. water), an amine catalyst (e.g. triethylenediamine), a tin catalyst, a silicone oil and optionally, other additives such as filler, pigment, etc., are added to 100pts.wt. the above soln. mixture. The resulting mixture is expanded to obtain the desired hydrocarbon foam.
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