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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable LtdfiledCriticalHitachi Cable Ltd
Priority to JP3417377ApriorityCriticalpatent/JPS53119947A/en
Publication of JPS53119947ApublicationCriticalpatent/JPS53119947A/en
PURPOSE: Char-expanding polymer composition accelerating the carbonization of the polymer upon fire to form tough films which further expands and foams to build up insulating layers without any adverse effect on good electrical properties and processability, which is produced by adding zinc carbonate to a polymer containing halogen in the molecule.