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:
Feb. 06, 2018
Filed:
Jul. 29, 2016
Gfbiochemicals Limited, Valletta, MT;
Brian D. Mullen, Delano, MN (US);
Vivek Badarinarayana, St. Louis Park, MN (US);
Eric S. Hall, Plymouth, MN (US);
Matthew J. Tjosaas, Minneapolis, MN (US);
Cora M. Leibig, Maple Grove, MN (US);
GFBIOCHEMICALS LIMITED, Valletta, MT;
Abstract
The invention describes methods of preparation and compositions of plasticizers. The plasticizers include at least 2 alkyl ketal ester moieties and have a molecular weight of greater than 300. In one aspect, the alkyl ketal ester moieties are levulinic ester ketals. Certain compositions contain at least one of an antioxidant, a UV stabilizer, a thermal stabilizer or mixtures thereof, present in the composition from about 0.01 to about 5.0 percent by weight of the total composition.