Patents by Inventor George F. Schaefer
George F. Schaefer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9676924Abstract: A method of making a benzyl cis-cyclohexane 1,2-dicarboxylate triester having the steps: a. forming a reaction mixture by reacting the following three components: i. a synthetic or biobased reagent selected from the group consisting of an alpha-hydroxyester and a beta-hydroxyester, ii. an anhydride selected from the group consisting of cis-hexahydrophthalic anhydride, 4-methylcyclohexane-1,2-dicarboxylic anhydride, and 3-methylcyclohexane-1,2-dicarboxylic anhydride, and iii. an alkylamine catalyst; and b. contacting benzyl chloride with the reaction mixture to yield a product that is free of phthalates and includes at least one benzyl cis-cyclohexane 1,2-dicarboxylate triester.Type: GrantFiled: November 25, 2015Date of Patent: June 13, 2017Assignee: Polymer Additives Inc.Inventors: John D. Bradshaw, Hongqiao Wu, George F. Schaefer, Larry J. Baldwin, Ronald J. Raleigh, Jr., Anne M. Lawson, Brenda Hollo
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Publication number: 20160145189Abstract: A method of making a benzyl cis-cyclohexane 1,2-dicarboxylate triester having the steps: a. forming a reaction mixture by reacting the following three components: i. a synthetic or biobased reagent selected from the group consisting of an alpha-hydroxyester and a beta-hydroxyester, ii. an anhydride selected from the group consisting of cis-hexahydrophthalic anhydride, 4-methylcyclohexane-1,2-dicarboxylic anhydride, and 3-methylcyclohexane-1,2-dicarboxylic anhydride, and iii. an alkylamine catalyst; and b. contacting benzyl chloride with the reaction mixture to yield a product that is free of phthalates and includes at least one benzyl cis-cyclohexane 1,2-dicarboxylate triester.Type: ApplicationFiled: November 25, 2015Publication date: May 26, 2016Applicant: Valtris Specialty ChemicalsInventors: John D. Bradshaw, Hongqiao Wu, George F. Schaefer, Larry J. Baldwin, Ronald J. Raleigh, JR., Anne M. Lawson, Brenda Hollo
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Patent number: 9221958Abstract: A process of transesterifying biobased epoxidized vegetable oils with a dialkyl carbonate produces mixtures of epoxidized fatty acid cyclic glycerin carbonate esters and epoxidized fatty acid alkyl esters.Type: GrantFiled: August 23, 2013Date of Patent: December 29, 2015Assignee: Valtris Specialty ChemicalsInventors: John D. Bradshaw, George F. Schaefer, Larry J. Baldwin, Ronald J. Raleigh, Jr., Brenda Hollo
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Publication number: 20150057397Abstract: A process of transesterifying biobased epoxidized vegetable oils with a dialkyl carbonate produces mixtures of epoxidized fatty acid cyclic glycerin carbonate esters and epoxidized fatty acid alkyl esters.Type: ApplicationFiled: August 23, 2013Publication date: February 26, 2015Applicant: Ferro CorporationInventors: John D. Bradshaw, George F. Schaefer, Larry J. Baldwin, Ronald J. Raleigh, JR., Brenda Hollo
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Publication number: 20100113664Abstract: Compounds useful as plasticizers and the synthesis thereof are disclosed. In general, the invention includes mixed alkyl/aryl asymmetric cyclic diesters where the aryl and alkyl ester moieties are attached to a cyclic structure at vicinal carbons. The invention also includes synthetic processes of making such compounds. Blends of these asymmetric cyclic diesters with other plasticizers are demonstrated to be of use in plasticizing polymers.Type: ApplicationFiled: December 10, 2009Publication date: May 6, 2010Applicant: FERRO CORPORATIONInventors: John D. Bradshaw, George F. Schaefer, Larry J. Baldwin, Ronald J. Raleigh, JR., Brenda Hollo
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Publication number: 20090312470Abstract: Compounds useful as plasticizers and the synthesis thereof are disclosed. In general, the invention includes mixed alkyl/aryl diesters where the aryl and alkyl ester moieties are attached to a cyclic structure at vicinal carbons. The invention also includes synthetic processes of making such compounds.Type: ApplicationFiled: April 10, 2009Publication date: December 17, 2009Applicant: FERRO CORPORATIONInventors: John D. Bradshaw, George F. Schaefer, Larry J. Baldwin, Ronald J. Raleigh, JR., Brenda Hollo
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Patent number: 7498372Abstract: The present invention provides compounds having both a pendent ether group and a pendent ester group that are useful as plasticizers for polymer resin and methods of making and using the same. In one embodiment of the invention, compounds according to the invention are formed by converting at least one, but not all, of the hydroxyl groups of a polyol having three or more hydroxyl groups (e.g., gylcerol, pentaerythritol or dipentaerythritol) to a pendent ether group to form a partially-etherized intermediate, and then converting at least one of the remaining hydroxyl groups in the partially-etherized intermediate to a pendent ester group.Type: GrantFiled: November 29, 2005Date of Patent: March 3, 2009Assignee: Ferro CorporationInventor: George F. Schaefer
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Patent number: 5177049Abstract: A process for the production of para-oriented dicarboxylic aromatic acids is disclosed in which an aromatic compound, having a tertiary alkyl group, is oxidized with molecular oxygen in the presence of a catalytic composition comprising a cobalt salt, a minor amount of a manganese salt, and a source of chloride in the presence of a solvent.Type: GrantFiled: August 19, 1991Date of Patent: January 5, 1993Assignee: Monsanto CompanyInventors: Roy A. Periana, George F. Schaefer
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Patent number: 5068407Abstract: A process for the production of para-oriented dicarboxylic aromatic acids is disclosed in which an aromatic compound, having a tertiary alkyl group, is oxidized with molecular oxygen in the presence of a catalytic composition comprising a cobalt salt, a minor amount of a manganese salt, and a source of chloride in the presence of a solvent.Type: GrantFiled: January 31, 1990Date of Patent: November 26, 1991Assignee: Monsanto CompanyInventors: Roy A. Periana, George F. Schaefer
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Patent number: 4598162Abstract: Novel, liquid mixtures of isomeric aldehydes and alcohols are described in the C.sub.11 -C.sub.16 carbon range, the compounds being characterized by a main carbon branched at the position and moderate additional branching in most isomers; the aldehyde mixtures are prepared by an economic route from olefins involving oxo and aldol reaction with the reaction conducted in such a way as to give a high percentage of aldolable product, and preferably with a base catalyzed aldol reaction conducted under conditions to make high conversions attainable. The aldehyde mixtures can be hydrogenated to alcohols and converted to novel ethoxylates or sulfate compositions suitable for use as biodegradable detergents; or hydrogenated and oxidized to novel carboxylic acid compositions also suitable for detergent use.Type: GrantFiled: November 4, 1983Date of Patent: July 1, 1986Assignee: Monsanto CompanyInventors: Denis Forster, George F. Schaefer, George E. Barker
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Patent number: 4518809Abstract: A novel, liquid mixture of C.sub.14 isomeric alcohols is described which is suitable for use in forming effective and biodegradable detergents, the alcohols being characterized by a 5-carbon branch at the 2-position and moderate additional branching in most isomers; the alcohols are prepared by a novel economic route from propylene dimer, involving oxo, aldol and hydrogenation reactions with the oxo reaction conducted in such a way as to give a high percentage of aldolable product and preferably with a base-catalyzed aldol reaction conducted under particular conditions to make high conversions attainable.Type: GrantFiled: June 1, 1983Date of Patent: May 21, 1985Assignee: Monsanto CompanyInventors: Denis Forster, George F. Schaefer
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Patent number: 4087463Abstract: Hydrogenolysis of hydrobenzoins [1,2-bis(aryl)ethane-1,2-diols] in the presence of a catalyst comprising cobalt carbonyl yields 1,2-bis(aryl)ethanes. The process is particularly directed to the production of 1,2-bis(4-hydroxyphenyl)ethane from 4,4-dihydroxyhydrobenzoin [1,2-bis(4-hydroxyphenyl)ethane-1,2-diol].Type: GrantFiled: December 22, 1976Date of Patent: May 2, 1978Assignee: Monsanto CompanyInventors: Denis Forster, George F. Schaefer