Patent · US Active

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

US7829616B2 · kind B2 · utility

12Cited by
59References
36Claims
0Family size

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Key dates

Filing dateJun 8, 2009
Grant dateNov 9, 2010
Priority date
Expiry dateJun 8, 2029

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S606/91
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.