Patents by Inventor Michael R. Jakupca
Michael R. Jakupca 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: 11472928Abstract: The invention pertains generally to a polymer composition comprising a certain secondary polymeric polyphosphite anti-oxidant, that can also act as a polymer processing aid alone or in combination with another polymer processing aid.Type: GrantFiled: February 12, 2019Date of Patent: October 18, 2022Inventors: Michael R Jakupca, Jacob M. Lance, John T. Regula
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Publication number: 20200407513Abstract: The invention pertains generally to a polymer composition comprising a certain secondary polymeric polyphosphite anti-oxidant, that can also act as a polymer processing aid alone or in combination with another polymer processing aid.Type: ApplicationFiled: February 12, 2019Publication date: December 31, 2020Applicant: DOVER CHEMICAL CORPORATIONInventors: Michael R Jakupca, Jacob M. Lance, John T. Regula
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Publication number: 20190248960Abstract: The invention pertains generally to a polymer composition comprising a certain secondary anti-oxidant, that can also act as a polymer processing aid alone or in combination with another polymer processing aid.Type: ApplicationFiled: February 14, 2018Publication date: August 15, 2019Applicant: Dover Chemical CorporationInventors: Michael R Jakupca, Jacob M. Lance, John T. Regula
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Patent number: 9982112Abstract: A copolymeric polyphosphite is described: wherein each R1 through R5 can be the same or different and independently selected from the group consisting of C12-20 alkyl, C12-22 alkenyl, C12-40 cycloalkyl, C12-40-cycloalkenyl, C12-20 alkyl glycol ethers and A-OH and B—OH are different end-capping groups and independently selected from the group consisting of C2-40 alkylene, C7-40 cycloalkylene, C3-20 alkyl glycol ethers, C3-40 alkyl lactone, and —R7—N(R8)—R9—; wherein R7 and through R9 are independently selected from the group C1-20 alkyl, C2-22 alkenyl, C6-40 cycloalkyl, C7-40 cycloalkylene and H; m and n are integers from 1 to 100 inclusive, with various provisos.Type: GrantFiled: July 16, 2014Date of Patent: May 29, 2018Assignee: Dover Chemical CorporationInventors: Michael R. Jakupca, Jacob M. Lance, Donald R. Stevenson
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Patent number: 9745425Abstract: A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain. Incorporation of the polymeric polyphosphite into synthetic polymers reduces the yellowness index of any polymer into which the polymeric polyphosphite additive has been added, as well as increased hydrolytic stability as well as increased resistance to migration in food packaging.Type: GrantFiled: June 19, 2014Date of Patent: August 29, 2017Assignee: Dover Chemical CorporationInventors: Michael R. Jakupca, Jacob M. Lance, Donald R. Stevenson
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Publication number: 20160340493Abstract: The invention pertains generally to an improved polymer composition which contains at least one polymeric polyphosphite or copolymeric polyphosphite additive containing no alkylphenols. Alkylphenol-free polymeric polyphosphites offer distinct advantages over conventional phosphite technology in rubbers and rubber compounds. Polymeric polyphosphites offer improved performance in regards to the prevention of color formation during high temperature processing and NOx aging.Type: ApplicationFiled: August 1, 2016Publication date: November 24, 2016Applicant: Dover Chemical CorporationInventors: Michael R. Jakupca, Jacob M. Lance, Donald R. Stevenson
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Publication number: 20160237264Abstract: The invention pertains generally to an improved polymer composition which contains at least one liquid polymeric polyphosphite additive containing no alkylphenols. Alkylphenol-free polymeric polyphosphites offer distinct advantages over conventional phosphite technology in polyolefin films. Polymeric polyphosphites offer improved performance in regards to the prevention of color formation during high temperature processing, NOx aging, and gamma irradiation.Type: ApplicationFiled: April 26, 2016Publication date: August 18, 2016Applicant: Dover Chemical CorporationInventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson, John T. Regula, Jacob J. Weingart
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Publication number: 20150203636Abstract: A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain.Type: ApplicationFiled: March 16, 2015Publication date: July 23, 2015Applicant: DOVER CHEMICAL CORPORATIONInventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson
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Patent number: 8981042Abstract: A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain.Type: GrantFiled: June 19, 2013Date of Patent: March 17, 2015Assignee: Dover Chemical CorporationInventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson
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Publication number: 20140378590Abstract: A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain. Incorporation of the polymeric polyphosphite into synthetic polymers reduces the yellowness index of any polymer into which the polymeric polyphosphite additive has been added, as well as increased hydrolytic stability as well as increased resistance to migration in food packaging.Type: ApplicationFiled: June 19, 2014Publication date: December 25, 2014Applicant: DOVER CHEMICAL CORPORATIONInventors: Michael R. Jakupca, Jacob M. Lance, Donald R. Stevenson
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Publication number: 20140329943Abstract: An alkylphenol-free colorless liquid copolymeric polyphosphite is described of generic formula: wherein each R1, R2, R3, R4 and R5 can be the same or different and independently selected from the group consisting of C12-20 alkyl, C12-22 alkenyl, C12-40 cycloalkyl, C12-40-cycloalkenyl, C12-20 alkyl glycol ethers and A-OH and B—OH as an end-capping groups; each A and B are different and independently selected from the group consisting of C2-40 alkylene, C7-40 cycloalkylene, C3-20 alkyl glycol ethers, C3-40 alkyl lactone, and —R7—N(R8)—R9—; wherein R7, R8 and R9 are independently selected from the group C1-20 alkyl, C2-22 alkenyl, C6-40 cycloalkyl, C7-40 cycloalkylene and H; m and n are integral values ranging from 1 to 100 inclusive, with the proviso that when —O-A or —O—B are C3-20 alkyl glycol ethers, x or y is an integral value no less than 7; x and y are integral values ranging from 1 to 1,000 wherein x+y sum to at least 3; and further wherein no more than two of R1, R2, R3, R4 and R5 are terminated wType: ApplicationFiled: July 16, 2014Publication date: November 6, 2014Applicant: DOVER CHEMICAL CORPORATIONInventors: Michael R. Jakupca, Jacob M. Lance, Donald R. Stevenson
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Publication number: 20130345346Abstract: A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain.Type: ApplicationFiled: June 19, 2013Publication date: December 26, 2013Applicant: DOVER CHEMICAL CORPORATIONInventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson
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Patent number: 7470735Abstract: Various phenol-free phosphites for use in PVC as an alternative to the conventional phenol-containing products phenyl diisodecyl phosphite and diphenyl isodecyl phosphite were tested. These phosphites utilize para-cumyl phenol-based derivatives in order to provide a phenol free derivative of the above mentioned conventional phosphites.Type: GrantFiled: May 14, 2004Date of Patent: December 30, 2008Assignee: Dover Chemical CorporationInventors: Donald R. Stevenson, Duong N. Nguyen, Mark E. Harr, Michael R. Jakupca
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Patent number: 7320764Abstract: The invention relates to liquid polymer additive compositions comprising blends of phosphite esters selected from the group consisting of aryl phosphites, alkyl phosphites, aryl/alkyl phosphites, bisphenol-A phosphites, dialkylene glycol phosphites and polydialkylene glycol phosphites, pentaerythritol phosphites, p-cumyl phenol phosphites with from 50 to 800 ppm inclusive of zinc per 100 parts resin. The stabilizer is used as either a complete or a partial replacement of toxic-metal containing antioxidant stabilizer additives.Type: GrantFiled: May 11, 2004Date of Patent: January 22, 2008Assignee: Dover Chemical CorporationInventors: Donald R. Stevenson, Thomas C. Jennings, Mark E. Harr, Michael R. Jakupca
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Patent number: 6824711Abstract: The invention relates to a liquid polymer additive composition comprising at least one phosphite ester selected from the group consisting of aryl phosphites, alkyl phosphites, aryl/alkyl phosphites, bisphenol-A phosphites, dialkylene glycol phosphites and polydialkylene glycol phosphites, pentaerythritol phosphites, p-cumyl phenol phosphites and blends thereof and approximately from 50 to 800 ppm inclusive of zinc per 100 parts resin. The stabilizer is used as either a complete or a partial replacement of toxic-metal containing antioxidant stabilizer additives.Type: GrantFiled: March 1, 2002Date of Patent: November 30, 2004Assignee: Dover Chemical CorporationInventors: Don R. Stevenson, Thomas C. Jennings, Mark E. Harr, Michael R. Jakupca
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Publication number: 20040183054Abstract: The invention relates to liquid polymer additive compositions comprising blends of phosphite esters selected from the group consisting of aryl phosphites, alkyl phosphites, aryl/alkyl phosphites, bisphenol-A phosphites, dialkylene glycol phosphites and polydialkylene glycol phosphites, pentaerythritol phosphites, p-cumyl phenol phosphites with from 50 to 800 ppm inclusive of zinc per 100 parts resin. The stabilizer is used as either a complete or a partial replacement of toxic-metal containing antioxidant stabilizer additives.Type: ApplicationFiled: May 11, 2004Publication date: September 23, 2004Applicant: DOVER CHEMICAL CORPORATIONInventors: Donald R. STEVENSON, Thomas C. JENNINGS, Mark E. HARR, Michael R. Jakupca
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Publication number: 20040180999Abstract: Various phenol-free phosphites for use in PVC as an alternative to the conventional phenol-containing products phenyl diisodecyl phosphite and diphenyl isodecyl phosphite were tested. These phosphites utilize para-cumyl phenol-based derivatives in order to provide a phenol free derivative of the above mentioned conventional phosphites.Type: ApplicationFiled: May 14, 2004Publication date: September 16, 2004Applicant: DOVER CHEMICAL CORPORATIONInventors: Donald R. STEVENSON, Duong N. NGUYEN, Mark E. HARR, Michael R. JAKUPCA
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Publication number: 20030001136Abstract: The invention relates to a liquid polymer additive composition comprising at least one phosphite ester selected from the group consisting of aryl phosphites, alkyl phosphites, aryl/alkyl phosphites, bisphenol-A phosphites, dialkylene glycol phosphites and polydialkylene glycol phosphites, pentaerythritol phosphites, p-cumyl phenol phosphites and blends thereof and approximately from 50 to 800 ppm inclusive of zinc per 100 parts resin. The stabilizer is used as either a complete or a partial replacement of toxic-metal containing antioxidant stabilizer additives.Type: ApplicationFiled: March 1, 2002Publication date: January 2, 2003Inventors: Don R. Stevenson, Thomas C. Jennings, Mark E. Harr, Michael R. Jakupca