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:
Dec. 31, 2019
Filed:
Jan. 02, 2015
Emerald Kalama Chemical, Llc, Kalama, WA (US);
William D. Arendt, Libertyville, IL (US);
Emily McBride, Kalama, WA (US);
Steven D. Roth, Ridgefield, WA (US);
Eric Hatcher, Monmouth, OR (US);
EMERALD KALAMA CHEMICAL, LLC, Kalama, WA (US);
Abstract
Polyester plasticizer compositions for adhesives, caulk, sealants, vinyl and other polymeric compositions comprising low molecular weight oligomeric dibenzoates prepared by end-capping a polyester plasticizer, having alternating units of glycols or diols and dibasic acids, with benzoic acid. Methods for preparing oligomeric dibenzoates include steps to reduce or eliminate residual hydroxyl content and improve plasticizer performance by adding acetic anhydride are also disclosed. Propylene glycol adipate and propylene glycol succinate polyesters with benzoic acid end-caps are particularly useful, as are hybrid benzoate/acetate end-capped polyesters formed in the process with acetic anhydride. Caulks, adhesives, sealants, and vinyl compositions comprising the oligomeric end-capped polyesters of the invention are also contemplated.