Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Wako Chemical Co Ltd
Original Assignee
Wako Chemical Co Ltd
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Filing date
Publication date
Application filed by Wako Chemical Co LtdfiledCriticalWako Chemical Co Ltd
Priority to JP915381ApriorityCriticalpatent/JPS57123275A/ja
Publication of JPS57123275ApublicationCriticalpatent/JPS57123275A/ja
Publication of JPS6329718B2publicationCriticalpatent/JPS6329718B2/ja
Process for the preparation of fluorchlorohydrocarbon-free, low-density polyurethane soft foams and soft elastic polyurethane molding foams and polyisocyanate mixutes modified with urethane groups on diphenylmethane-diisocyanate base