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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marelli Corp
Original Assignee
Kanto Seiki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kanto Seiki Co LtdfiledCriticalKanto Seiki Co Ltd
Priority to JP62236651ApriorityCriticalpatent/JPS6479214A/en
Publication of JPS6479214ApublicationCriticalpatent/JPS6479214A/en
PURPOSE:To make it possible to improve productivity without occurrence of sink marks on a product, by limiting the amt. of graft polyol to be added in a raw material compounded liq. CONSTITUTION:When a polyurethane foam is molded by reacting a compounded liq. prepd. by adding a graft polyol, a crosslinking agent, a catalyst and a foaming agent in a polyol with an isocyanate, the graft polyol is added to the above described compounded liq. in an amount of about 8-55wt.%.