Patents by Inventor Joel M. Pollino
Joel M. Pollino 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: 8946358Abstract: A method for accelerating the curing of a polyarylene sulfide. The polyarylene sulfide is blended with a cure accelerator to form a mixture where the weight percentage of accelerator is between 0.2% and 15.0% of the total weight of the blend. The mixture is cured at 320° C. or above for at least 20 minutes. The cure accelerator is a compound selected from the group consisting of ionomers, hindered phenols, polyhydric alcohols, polycarboxylates, and mixtures of the foregoing.Type: GrantFiled: March 22, 2011Date of Patent: February 3, 2015Assignee: E I du Pont de Nemours and CompanyInventors: Joel M Pollino, Joachim C Ritter
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Patent number: 8846857Abstract: Provided are methods for obtaining modified polyarylene sulfide compositions having improved thermal and thermo-oxidative stability, the compositions so obtained, and articles comprising the compositions. The method comprises the steps of contacting, in the presence of a suitable solvent, a polyarylene sulfide with at least one reducing agent and at least base to form a first mixture. The reducing agent comprises zinc(0), tin(0), tin(II), bismuth (0), bismuth(III), or a combination thereof. The first mixture is heated to form a second mixture in which the polyarylene sulfide is dissolved. The polyarylene sulfide is then precipitated to obtain a modified polyarylene sulfide.Type: GrantFiled: October 4, 2012Date of Patent: September 30, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Robert John Duff, Zheng-Zheng Huang, Joachim C Ritter, Joel M Pollino
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Patent number: 8809209Abstract: A stain resistant, oil and water repellent composition comprising a copolymer prepared from fluorinated methacrylate, carbonate methacrylate, and methacrylic acid or salt thereof, a method of providing stain resistance, oil and water repellency to substrates, and a treated substrate.Type: GrantFiled: November 21, 2011Date of Patent: August 19, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, Siddhartha Shenoy, Libby Xiaowei Hu
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Patent number: 8808868Abstract: A stain resistant, oil and water repellent copolymer comprising a copolymer prepared from fluorinated (meth)acrylate and amine salts of (meth)acrylic acid, and a method of providing stain resistance, oil and water repellency to substrates and a treated substrate.Type: GrantFiled: November 21, 2011Date of Patent: August 19, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Siddhartha Shenoy, Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, John Russell Crompton, Jr.
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Publication number: 20140228527Abstract: Provided are methods for obtaining modified polyarylene sulfide compositions having improved thermal and thermo-oxidative stability, the compositions so obtained, and articles comprising the compositions. The method comprises the steps of contacting, in the presence of a suitable solvent, a polyarylene sulfide with at least one reducing agent and at least base to form a first mixture. The reducing agent comprises zinc(0), tin(0), tin(II), bismuth (0), bismuth(III), or a combination thereof. The first mixture is heated to form a second mixture in which the polyarylene sulfide is dissolved. The polyarylene sulfide is then precipitated to obtain a modified polyarylene sulfide.Type: ApplicationFiled: September 21, 2012Publication date: August 14, 2014Inventors: Robert John Duff, Zheng-Zheng Huang, Joachim C. Ritter, Joel M. Pollino
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Patent number: 8779186Abstract: New fluorinated ethers of aromatic acids and diesters are disclosed. These compositions can be applied to, e.g., fibers, yarns, carpets, garments, films, molded parts, paper and cardboard, stone, and tile to impart soil, water and oil resistance. By incorporating the fluorinated ethers of aromatic acids, or diesters thereof, into polymer backbones, more lasting soil, water and oil resistance, as well as improved flame retardance, can be achieved.Type: GrantFiled: September 2, 2010Date of Patent: July 15, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Neville Everton Drysdale, Kenneth Gene Moloy, Joachim C. Ritter, Joel M. Pollino, Surbhi Mahajan Du
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Publication number: 20140097134Abstract: Provided are methods for obtaining modified polyarylene sulfide compositions having improved thermal and thermo-oxidative stability, the compositions so obtained, and articles comprising the compositions. The method comprises the steps of contacting, in the presence of a suitable solvent, a polyarylene sulfide with at least one reducing agent and at least base to form a first mixture. The reducing agent comprises zinc(0), tin(0), tin(II), bismuth (0), bismuth(III), or a combination thereof. The first mixture is heated to form a second mixture in which the polyarylene sulfide is dissolved. The polyarylene sulfide is then precipitated to obtain a modified polyarylene sulfide.Type: ApplicationFiled: October 4, 2012Publication date: April 10, 2014Applicant: E I DUPONT DE NEMOURS AND COMPANYInventors: ROBERT John DUFF, Zheng-Zheng Huang, Joel M. Pollino, Joachim C. Ritter
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Publication number: 20140087117Abstract: Provided are polyphenylene sulfide compositions having improved thermo-oxidative stability, methods for obtaining them, and articles comprising the compositions. The compositions comprise polyphenylene sulfide and a bismuth additive. The bismuth additive comprises a bismuth halide, an inorganic bismuth salt, a bismuth carboxylate, an oxide comprising bismuth and a transition metal, bismuth metal, or a mixture thereof. Optionally, the compositions further comprise at least one zinc(II) compound.Type: ApplicationFiled: September 27, 2012Publication date: March 27, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Robert John Duff, Joachim C. Ritter, Joel M. Pollino
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Patent number: 8642177Abstract: A method to provide acid etch resistance to contacting a calcareous substrate with a copolymer prepared from fluorinated methacrylate, short chain branched (meth)acrylate, and (meth)acrylic acid salt and a treated substrate.Type: GrantFiled: March 20, 2012Date of Patent: February 4, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Brad M Rosen, Siddhartha R. Shenoy, Anilkumar Raghavanpillai, Ernest Bryon Wysong, Joel M Pollino, James J Hughes, John Russell Crompton, Jr.
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Patent number: 8563672Abstract: A process for producing copolymers of (meth)acrylates:(meth)acrylic acid amine complexes useful for hard surfaces having increased performance for stain resistance, oil and water repellency properties.Type: GrantFiled: November 21, 2011Date of Patent: October 22, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Siddhartha Shenoy, Joel M. Pollino, Anilkumar Raghavanpillai, Brad M. Rosen, Ernest Byron Wysong
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Publication number: 20130251908Abstract: A method to provide acid etch resistance to contacting a calcareous substrate with a copolymer prepared from fluorinated methacrylate, short chain branched (meth)acrylate, and (meth)acrylic acid salt and a treated substrate.Type: ApplicationFiled: March 20, 2012Publication date: September 26, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Brad M. Rosen, Siddhartha R. Shenoy, Anilkumar Raghavanpillai, Ernest Bryon Wysong, Joel M. Pollino, James J. Hughes, John Russell Crompton, JR.
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Publication number: 20130210307Abstract: Provided are novel compositions comprising a polyarylene sulfide and at least one tin additive comprising a branched tin(II) carboxylate selected from the group consisting of Sn(O2CR)2, Sn(O2CR)(O2CR?), Sn(O2CR)(O2CR?), and mixtures thereof, where the carboxylate moieties O2CR and O2CR? independently represent branched carboxylate anions and the carboxylate moiety O2CR? represents a linear carboxylate anion. Articles comprising the novel compositions are also provided. In addition, methods to improve the thermal stability of polyarylene sulfides, and methods to improve the thermo-oxidative stability of polyarylene sulfides, through the use of the disclosed branched tin(II) carboxylates are provided. The polyarylene sulfide compositions are useful in various applications which require superior thermal resistance, chemical resistance, and electrical insulating properties.Type: ApplicationFiled: March 22, 2011Publication date: August 15, 2013Inventors: Joachim C. Ritter, Joel M. Pollino, Michael T. Pottiger, Yefim Brun, Lakshmi Krishnamurthy, Zheng-Zheng Huang, John C. Howe, Laurie A. Howe, Harry Vaughn Samuelson, Zuohong Yin
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Patent number: 8378061Abstract: Provided are films made from copolyesters having improved oil repellency as compared to conventional copolyesters. The copolyesters are derived from certain perfluorinated monomers.Type: GrantFiled: September 1, 2010Date of Patent: February 19, 2013Assignee: E.I. du Pont de Nemours and CompanyInventors: Neville Everton Drysdale, Surbhi Mahajan, Kenneth Gene Moloy, Fredrik Nederberg, Joel M. Pollino, Joachim C. Ritter
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Publication number: 20130018135Abstract: Provided are novel compositions comprising a polyarylene sulfide and at least one tin additive comprising a branched tin(II) carboxylate selected from the group consisting of Sn(O2CR)2, Sn(O2CR)(O2CR?), Sn(O2CR)(O2CR?), and mixtures thereof, where the carboxylate moieties O2CR and O2CR? independently represent branched carboxylate anions and the carboxylate moiety O2CR? represents a linear carboxylate anion. Articles comprising the novel compositions are also provided. In addition, methods to improve the thermal stability of polyarylene sulfides, and methods to improve the thermo-oxidative stability of polyarylene sulfides, through the use of the disclosed branched tin(II) carboxylates are provided. The polyarylene sulfide compositions are useful in various applications which require superior thermal resistance, chemical resistance, and electrical insulating properties.Type: ApplicationFiled: March 22, 2011Publication date: January 17, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Joachim C. Ritter, Joel M. Pollino, Michael T. Pottiger, Yefim Brun, Zheng-Zheng Huang, John C. Howe
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Publication number: 20130012671Abstract: A method for accelerating the curing of a polyarylene sulfide. The polyarylene sulfide is blended with a cure accelerator to form a mixture where the weight percentage of accelerator is between 0.2% and 15.0% of the total weight of the blend. The mixture is cured at 320° C. or above for at least 20 minutes. The cure accelerator is a compound selected from the group consisting of ionomers, hindered phenols, polyhydric alcohols, polycarboxylates, and mixtures of the foregoing.Type: ApplicationFiled: March 22, 2011Publication date: January 10, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Joel M Pollino, Joachim C Ritter, Robert John Duff, Zheng-Zheng Huang, Zuohong Yin
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Publication number: 20130012638Abstract: This invention relates to methods for decreasing the complex viscosity of a polyarylene sulfide polymer melt while maintaining the molecular weight of the polyarylene sulfide with time. This invention also relates to polymer melt compositions comprising a polyarylene sulfide, wherein the complex viscosity of the composition is decreased relative to the complex viscosity of the native polyarylene sulfide measured under the same conditions, and the weight average molecular weight of the polyarylene sulfide is maintained. The methods of decreasing the complex viscosity of a polyarylene sulfide-containing polymer melt, and the polymer melt compositions so obtained, are useful in processes to produce fibers, films, nonwovens, and molded parts from polyarylene sulfides.Type: ApplicationFiled: March 16, 2011Publication date: January 10, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Joachim C. Ritter, Joel M. Pollino, Michael T. Pottiger, Zheng-Zheng Huang, Lakshmi Krishnamurthy, John C. Howe, Marios Avgousti, Zuohong Yin
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Publication number: 20130012092Abstract: A nonwoven web comprising bicomponent fibers. The fibers have continuous phases each of a first polyarylene sulfide (PAS) component and a polymer component. The polymer component may also be a second polyarylene sulfide. The first polyarylene sulfide component contains a tin or a zinc additive or both, and the first polyarylene sulfide component of any given fiber is at least partially exposed to the external surface of that fiber.Type: ApplicationFiled: March 22, 2011Publication date: January 10, 2013Inventors: Joel M. Pollino, Lakshmi Krishnamurthy, Joachim C. Ritter, Robert John Duff, Yefim Brun, Zheng-Zheng Huang, Zuohong Yin
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Publication number: 20130012637Abstract: An improved process for forming polyarylene sulfide fibers is provided. The process comprises forming at least one fiber from a polymer melt comprising a polyarylene sulfide and at least one tin additive comprising a branched tin(II) carboxylate. Using such a melt, the fiber forming continuity is improved compared to that of the native polyarylene sulfide melt processed under the same conditions.Type: ApplicationFiled: March 21, 2011Publication date: January 10, 2013Inventors: Joachim C. Ritter, Joel M. Pollino, Michael T. Pottiger, Lakshmi Krishnamurthy, John C. Howe, Harry Vaughn Samuelson, Marios Avgousti, Zheng-Zheng Huang, Robert John Duff
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Publication number: 20130009333Abstract: A nonwoven web comprising bicomponent fibers. The fibers have continuous phases each of a first polyarylene sulfide (PAS) component and a polymer component. The polymer component may also be a second polyarylene sulfide. The first polyarylene sulfide component contains a tin or a zinc additive or both, and the first polyarylene sulfide component of any given fiber is at least partially exposed to the external surface of that fiber.Type: ApplicationFiled: March 17, 2011Publication date: January 10, 2013Inventors: Lakshmi Krishnamurthy, Zuohong Yin, Joachim C Ritter, Joel M Pollino, Michael T Pottiger, John C Howe, David Matthews Laura, JR., Harry Vaughn Samuelson, Robert John Duff, Zheng-Zheng Huang
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Publication number: 20130011544Abstract: A method for stabilizing a polymeric structure against thermo-oxidative degradation is described. A polymeric core structure is provided with a skin layer that contains a skin resin in which the skin resin at least partially envelops a portion of the core structure. The skin structure then provides a barrier that thereby stabilizes the portion of the structure that is enveloped. The skin resin is made from a treated polyarylene sulfide.Type: ApplicationFiled: March 16, 2011Publication date: January 10, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Joel M. Pollino, Lakshmi Krishnamurthy, Joachim C. Ritter, Robert John Duff, Yefim Brun, Zheng-Zheng Zhuang, Zuohong Yin