Patents by Inventor Marian Henryk Szkudlarek
Marian Henryk Szkudlarek 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: 9221973Abstract: The present invention relates to a resin composition comprising (a) from 30 to 80 wt. % of an unsaturated polyester resin and/or a vinyl ester resin and (b) from 10 to 50 wt. % of styrene, wherein the resin composition further comprises (c) an ester of itaconic acid and (d) a paraffin oil and/or a paraffin wax.Type: GrantFiled: March 24, 2010Date of Patent: December 29, 2015Assignee: DSM IP ASSETS B.V.Inventors: Marian Henryk Szkudlarek, Johan Franz Gradius Jansen, Laurence Jeroen Bleeker
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Patent number: 8790762Abstract: The present invention relates to an unsaturated polyester resin comprising itaconate esters as reactive unsaturations, wherein the acid value of the resin is in the range of from 25 to 125 and the molar ratio of hydroxyl end groups and carboxylic acid end groups is in the range of from 0.33 to 3. In one embodiment, the molar ratio of hydroxyl end groups and carboxylic acid end groups is in the range of from 0.33 to 0.9. In another embodiment, the molar ratio of hydroxyl end groups and carboxylic acid end groups is in the range of from 1.1 to 3.Type: GrantFiled: March 24, 2010Date of Patent: July 29, 2014Assignee: DSM IP Assets B.V.Inventors: Marian Henryk Szkudlarek, Johan Franz Gradus Antonius Jansen, Silvana Rensina Antonnietta Di Silvestre, Stefanus Jacobus Duyvestijn
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Patent number: 8598293Abstract: The present invention relates to a resin composition comprising (a) from 30 to 70 wt. % of a vinyl ester resin, (b) from 30 to 70 wt. % of reactive diluent, wherein the resin composition comprises methacrylate containing compound and an itaconate ester as reactive diluent.Type: GrantFiled: March 24, 2010Date of Patent: December 3, 2013Assignee: DSM IP Assets B.V.Inventors: Marian Henryk Szkudlarek, Johan Franz Gradius Antonius Jansen
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Patent number: 8487041Abstract: The present invention relates to a resin composition comprising (a) an unsaturated polyester resin having a molecular weight Mn of at least 750 Dalton and at most 5000 Dalton and (b) a reactive diluent, wherein the unsaturated polyester resin comprises C5-C10 unsaturated diacid building blocks and isosorbide building blocks. Preferably, at least part of the isosorbide is derived from a non-fossil source. Preferably, itaconic acid or anhydride is used as the C5 unsaturated dicarboxylic acid.Type: GrantFiled: March 24, 2010Date of Patent: July 16, 2013Assignee: DSM IP Assets B.V.Inventors: Marian Henryk Szkudlarek, Johan Franz Gradus Antonius Jansen, Stefanus Jacobus Duyvestijn
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Patent number: 8470926Abstract: The present invention relates to an unsaturated polyester resin comprising itaconate ester units as reactive unsaturation, wherein the resin comprises itaconate, citraconate and mesaconate ester units. Preferably, the resin comprises itaconate, citraconate and mesaconate ester units in an amount of from 40 to 90 mol % itaconate, from 2 to 30 mol % citraconate and from 5 to 40 mol % mesaconate in which 100 mol % is the total amount of itaconate, citraconate and mesaconate esters units.Type: GrantFiled: March 24, 2010Date of Patent: June 25, 2013Assignee: DSM IP Assets B.V.Inventors: Marian Henryk Szkudlarek, Johan Franz Gradus Antonius Jansen, Stefanus Jacobus Duyvestijn, Silvana Rensina Antonnietta Di Silvestre
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Publication number: 20120157618Abstract: The present invention relates to a resin composition comprising an unsaturated polyester resin comprising 1,3-propane diol building blocks and C5-C10 unsaturated dicarboxylic acid building blocks and further comprising a reactive diluent. Preferably, at least part of the 1,3-propane diol is derived from a non-fossil source. Preferably, itaconic acid or anhydride is used as the C5 unsaturated dicarboxylic acid.Type: ApplicationFiled: March 24, 2010Publication date: June 21, 2012Inventors: Marian Henryk Szkudlarek, Johan Franz Gradus Antonius Jansen
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Publication number: 20120136117Abstract: The present invention relates to a resin composition comprising (a) an unsaturated polyester resin having a molecular weight Mn of at least 750 Dalton and at most 5000 Dalton and (b) a reactive diluent, wherein the unsaturated polyester resin comprises C5-C10 unsaturated diacid building blocks and isosorbide building blocks. Preferably, at least part of the isosorbide is derived from a non-fossil source. Preferably, itaconic acid or anhydride is used as the C5 unsaturated dicarboxylic acid.Type: ApplicationFiled: March 24, 2010Publication date: May 31, 2012Inventors: Marian Henryk Szkudlarek, Hohan Franz Gradus Antonius Jamsen, Stefanus Jacobus Duyvestijn
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Publication number: 20120121841Abstract: The present invention relates to an unsaturated polyester resin comprising itaconate esters as reactive unsaturations, wherein the acid value of the resin is in the range of from 25 to 125 and the molar ratio of hydroxyl end groups and carboxylic acid end groups is in the range of from 0.33 to 3. In one embodiment, the molar ratio of hydroxyl end groups and carboxylic acid end groups is in the range of from 0.33 to 0.9. In another embodiment, the molar ratio of hydroxyl end groups and carboxylic acid end groups is in the range of from 1.1 to 3.Type: ApplicationFiled: March 24, 2010Publication date: May 17, 2012Applicant: DSM IP Assets B.V.Inventors: Marian Henryk Szkudlarek, Johan Franz Gradus Antonius Jansen, Silvana Rensina Antonnietta Di Silvestre, Stefanus Jacobus Duyvestijn
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Publication number: 20120121839Abstract: The present invention relates to a process for preparing an unsaturated polyester resin comprising itaconate ester units as reactive unsaturations by reacting at least itaconic acid and/or itaconic anhydride and at least one diol, wherein the process is effected in the presence of an inhibitor having a gelation activity factor less than or equal to (0.5) and having an efficiency factor of from (0.55) up to 1.Type: ApplicationFiled: March 24, 2010Publication date: May 17, 2012Inventors: Marian Henryk Szkudlarek, Johan Franz Gradus Anton Jansen, Stefanus Jacobus Duyvestijn, di Silvana Rensina Antonnietta Silvestre
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Publication number: 20120123047Abstract: The present invention relates to a resin composition comprising (a) from 30 to 80 wt. % of an unsaturated polyester resin and/or a vinyl ester resin and (b) from 10 to 50 wt. % of styrene, wherein the resin composition further comprises (c) an ester of itaconic acid and (d) a paraffin oil and/or a paraffin wax.Type: ApplicationFiled: March 24, 2010Publication date: May 17, 2012Inventors: Marian Henryk Szkudlarek, Johan Franz Gradius Jansen, Laurence Jeroen Bleeker
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Publication number: 20120116025Abstract: The present invention relates to a resin composition comprising (a) from 30 to 70 wt. % of a vinyl ester resin, (b) from 30 to 70 wt. % of reactive diluent, wherein the resin composition comprises methacrylate containing compound and an itaconate ester as reactive diluent.Type: ApplicationFiled: March 24, 2010Publication date: May 10, 2012Inventors: Marian Henryk Szkudlarek, Johan Franz Gradius Anto Jansen
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Publication number: 20120101226Abstract: The present invention relates to a process for preparing unsaturated polyester resin comprising itaconate ester units as reactive unsaturations, wherein the process comprises reacting at least itaconic acid and/or itaconic anhydride and at least one diol in the presence of benzoquinone and/or alkyl substituted benzoquinone, whereby the total amount of benzoquinone and alkyl substituted benzoquinone is at least 200 ppm.Type: ApplicationFiled: March 24, 2010Publication date: April 26, 2012Inventors: Marian Henryk Szkudlarek, Johan Franz Gradus Antonius Jansen, Stefanus Jacobus Duyvestijn
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Publication number: 20120095160Abstract: The present invention relates to an unsaturated polyester resin comprising itaconate ester units as reactive unsaturation, wherein the resin comprises itaconate, citraconate and mesaconate ester units. Preferably, the resin comprises itaconate, citraconate and mesaconate ester units in an amount of from 40 to 90 mol % itaconate, from 2 to 30 mol % citraconate and from 5 to 40 mol % mesaconate in which 100 mol % is the total amount of itaconate, citraconate and mesaconate esters units.Type: ApplicationFiled: March 24, 2010Publication date: April 19, 2012Inventors: Marian Henryk Szkudlarek, Johan Franz Gradus Antonnius Jansen, Stefanus Jacobus Duyvestijn, Silvana Rensina Antonnietta Di Silvestre