Back to results
US 5,800,928 AGranted
Breathable waterproof film
AssigneeElf Atochem S.A.
InventorsLaurent Fischer, Michel Degrand, Alain Bouilloux, Jean-Claude Jammet, Yves Germain
Life of this patent
Estimating the term…
Abstract
The invention relates to a breathing film constituting a mixture including: (a) at least one thermoplastic elastomer which has polyether blocks; (b) at least one copolymer including ethylene and at least one alkyl (meth)acrylate. They can be used in combination with fabrics or with nonwovens.
Claims9
A breathable waterproof film of a mixture which comprises:
- a) at least one thermoplastic elastomer having polyether blocks;
- and
- b) at least one copolymer of ethylene and at least one alkyl (meth)acrylate.
A breathable waterproof film of a mixture which comprises:
- a major proportion by weight of a thermoplastic elastomer comprising a polyetheresteramide block copolymer;
- and
- a minor proportion by weight of an ethylene/alkyl (meth)acrylate copolymer and of an ethylene/alkyl (meth)acrylate/maleic anhydride copolymer.
Dependencies are inferred from the claim text.