Random ethylene oxide copolymer and non-random alkylene oxide(s) polymer with bioactive agent

US8124687B2 · kind B2 · utility

Assignee

• SYNCERA, INC. · US

Inventors

• Tadeusz Z. Wellisz · Los Angeles, US
• Timothy C. Fisher · Los Angeles, US
• Jonathan Armstrong · Los Angeles, US
• John Cambridge · Los Angeles, US

Key dates

• Filing date: Sep 15, 2010
• Grant date: Feb 28, 2012
• Expiry date: Sep 15, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S606/91
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A polymeric material comprised of (i) at least one random copolymer comprised of ethylene oxide and one or more other alkylene oxide(s) and (ii) at least one non-random polymer comprised of one or more poly(alkylene oxide)s has been discovered. Preferably, it is a polymer alloy. Alkylene oxide homopolymers or block copolymers may be the non-random polymer. In a related discovery, an adhesive material can be made by suspending (a) particles in (b) a matrix of at least one poly(ethylene oxide) copolymer of ethylene oxide and propylene oxide, or a combination thereof. The handling characteristics may be adjusted for different utilities (e.g., from runny oil to hard wax). Applications include use as adhesive, cohesive, filler, lubricant, surfactant, or any combination thereof. In particular, the hard materials may be used for cleaning or waxing.