Segetis, Inc.

Gfbiochemicals Limited

Marc Davis Scholten

Brian Daniel Mullen

Cora Leibig

Vivek Badarinarayana

Matthew John Tjosaas

Sergey A Selifonov

Dorie Janine Yontz

Tara Jane Mullen

Feng Jing

Douglas Wicks

Ning Zhou

Steven Donen

Chunyong Wu

Andrew J Louwagie

Adam Edward Goetz

Adam E Goetz

Tara J Mullen

Steven A Donen

Disclosed herein is a polyhydroxy ketal adduct obtained by the esterification of a hydrocarbon polyol by at least 1.5 equivalents of a ketocarboxy to produce an intermediate ketocarboxylic ester. The intermediate polyketocarboxylic ester is then ketalized to produce the polyhydroxyketal adduct, which can be used to provide a polymeric composition.

Polyhydroxy ketal ester adducts, methods of manufacture and uses thereof

A method for producing a product that comprises glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate comprises reacting either glycerol or propylene glycol with ethyl levulinate in the presence of a homogenous or heterogeneous catalyst system in a reactor system. The ethyl levulinate and either glycerol or propylene glycol are heated to remove water, polyol, and excess ethyl levulinate. The excess ethyl levulinate and polyol is recycled back to the reactor. The product is distilled in a specific fashion and optionally treated by means of a stabilizing agent or acid species removal bed, to obtain a composition comprising glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate wherein the composition comprises less than or equal to about 2 wt % contaminants.

Methods for the manufacture of acetals and ketals, and the acetals and ketals produced thereby

Disclosed herein is a polyketal adduct obtained by forming an ester between a hydrocarbon polyol and a ketocarboxylic acid to produce an intermediate polyketocarboxylic ester. The intermediate polyketocarboxylic ester can be purified via crystallization to achieve purities of greater than 99.0% and then ketalized to produce the polyketal adduct, which can be used in polymer compositions. The polyketal adduct I is obtained at high purity and at high yield.

Polyketal adducts, methods of manufacture and uses thereof

Various esterified alkyl ketal ester or hydroxyalkyl ketal ester products are useful as components of organic polymer compositions. The ketal esters are produced in certain transesterifications between alkyl ketal esters and/or hydroxyalkyl ketal esters and polyols, aminoalcohols, polyamines, and/or polycarboxylic acids. The products are excellent plasticizers for a variety of organic polymers, notable poly(vinyl chloride) plastisols. The products are also very good lubricants for many lubrication applications.

Ketal compounds and uses thereof

Disclosed herein are ketal amide compounds. The ketal amide compounds are synthesized by the reaction of ketal acids or ketal esters with amine functional compounds. Also disclosed are methodologies useful to make the ketal amide compounds. Also disclosed herein are formulations and articles containing the ketal amide compounds.

Ketal amide compounds, methods of making, and applications

A ketal ester of an oxocarboxylic acid and a process to make the same, where the ketal ester is of Structure (I): wherein a is 0 or an integer from 1 to 12; n is 0 or 1; Ris a linear alkyl, aryl, arylalkylene, or branched alkyl group with 1-18 carbon atoms; Rand Rcan be hydrogen, Cstraight chain or branched alkyl, phenyl, substituted phenyl, C1-6 alkyl substituted with up to four OH groups, C1-6 alkyl, or acetyl optionally substituted hydrocarbon radicals, or Rand Rtogether with the &#x3b1;-carbon form a cycloaliphatic or heterocyclic ring with 3-6 carbon atoms and 0-3 heteroatoms, provided that only one of Rand Ris hydrogen; Ris a linear alkyl or branched alkyl group with 1-18 carbon atoms; and Ris hydrogen, or an alkyl, aryl, aralkyl or branched alkyl group with 1-10 carbon atoms. 

Ketal esters of oxocarboxylic acids and process of making

Growing community of inventors

Saint Paul, MN, United States of America

Marc Davis Scholten