The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2020
Filed:
Sep. 22, 2016
Emerald Specialty Polymers, Llc, Akron, OH (US);
Jeremy Pasatta, Olmsted Falls, OH (US);
Yu Chen, Hudson, OH (US);
Emerald Specialty Polymers, LLC, The Woodlands, TX (US);
Abstract
Novel method for production of epoxy terminated butadiene and butadiene acrylonitrile copolymer tougheners synthesized through the use of hydroxyl terminated polybutadiene and hydroxyl terminated butadiene acrylonitrile copolymers as starting materials. The epoxy terminated butadiene and butadiene acrylonitrile copolymers synthesized by the novel method have unexpectedly lower viscosity, contain no free epoxy and provide good improvements in T-peel resistance over traditional tougheners produced using traditional methods. Adhesives, composites and coatings utilizing the tougheners of the inventive method are within the scope of the invention.