Block copolymers

US4003960A · kind A · utility

Assignee

• Societa Italiana Resine S.T.R. S.p.A. · IT

Inventors

• Pierino Radici · Saronno, IT
• Gaudenzio Bianchi · Cassano Magnago, IT
• Daniele Colombo · Dhahran, SA
• Paolo Colombo · Padova, IT

Key dates

• Filing date: Dec 22, 1975
• Grant date: Jan 18, 1977
• Expiry date: Dec 22, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2/38
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Block copolymer of the structure A-B, wherein: ##STR1## A is a polylactamic block of recurring units: t,0010 WHEREIN PM is a linear polymethylene chain having from 3 to 13 carbon atoms, B is a polyoxymethylene block of recurring units [CH.sub.2 O]. The block copolymer contains at least 2 wt.% of block B and at least 0.05 wt.% of block A. The block copolymer can be used as technopolymer when rich in block B, or in the field of yarns and molded products when rich in block A.