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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and CofiledCriticalEI Du Pont de Nemours and Co
Priority claimed from EP84307627Aexternal-prioritypatent/EP0180671B1/en
Application grantedgrantedCritical
Publication of DE3474258D1publicationCriticalpatent/DE3474258D1/en
A protective garment or waterproof tent, shelter or tarpaulin is formed at least partly from a composite fabric contg. a continuous film of a highly fluorinated ion exchange polymer. The polymer has sulphonic acid metal salt functional groups, the metal having valency 2 to 4, and has at least one F atom attached to each C atom to which the functional gp. is attached. The polymer has equiv. wt. of 2000 or less.