Modified hydrogenated polymers

US6127498A · kind A · utility

Assignee

• Ausimont S.p.A. · IT

Inventors

• Claudio Tonelli · Vimercate, IT
• Giovanni Simeone · ex Polveriera, IT
• Tania Trombetta · Milano, IT

Key dates

• Filing date: Apr 6, 1998
• Grant date: Oct 3, 2000
• Expiry date: Apr 6, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F8/18
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hydrogenated fluoromodified polymers obtainable by reaction among hydrogenated polymers and the modifier having a polyether structure: EQU RfO(CF.sub.2 CF.sub.2 O).sub.m (CF.sub.2 O).sub.n --CF.sub.2 --A.sub.q --T.sub.p (I) wherein A is a linking bridge bound to the end group --CF.sub.2 -- of the perfluoropolyether chain, T represents one or more reactive functional groups; p and q are integers, p ranges from 1 to 4, q is an integer from 0 to 1; m and n are integers such that m/n is comprised between 0.2 and 5, Rf is a perfluoroalkyl from 1 to 3 carbon atoms.