Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof

Patent 7745546 Issued on June 29, 2010. Estimated Expiration Date:

March 21, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Arizona Chemical Company

Application

No. 11085385 filed on 03/21/2005

US Classes:

525/408Mixed with carboxylic acid or derivative or polymer derived therefrom

Examiners

Primary: Lipman, Bernard

Attorney, Agent or Firm

Foreign Patent References

0130927 EP 06/01/1984
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International Class

C08L 71/02

Abstract

A composition comprising (a) a resin composition comprising a block copolymer of the formula hydrocarbon-polyether-polyamide-polyether-hydrocarbon; and (b) a polar liquid. The block copolymer may be prepared by a process comprising reacting together reactants comprising dimer acid, diamine, and a polyether having termination at one end selected from amine, hydroxyl and carboxyl, and termination at another end selected from hydrocarbons. The polar liquid may be one or more of an aromatic liquid, a polar aprotic liquid, a ketone-containing liquid, an ester-containing liquid, an ether-containing liquid, an amide-containing liquid and a sulfoxide-containing liquid. The composition may be a gel at room temperature.

Other References

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