Patent ID: 9708480
Date: 2017-07-18
CPC Classifications: A61F,A61L,C08G,C08L

Claim:
1. A metastable polymer composition consisting of a mixture of one constituent polymer and one functional copolymer, in which said constituent polymer is a thermoplastic polymer having a glass transition temperature (Tg) or a melting temperature (Tm) above or equal to 80° C., and is present in the mixture in a mass proportion comprised between 85% and 99.9%, and said functional copolymer has a glass transition temperature (Tg) or a melting temperature (Tm) above or equal to 40° C., comprises at least 60% by mass of monomer units with a hydrophilic character, and hydrophobic sequences or blocks, wherein said hydrophobic sequences or blocks are miscible with the constituent polymer and has a molecular weight greater that 5000 g/mole, wherein the molecular weight is expressed in average number.