Patents by Inventor Philip James Hough
Philip James Hough 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: 10465050Abstract: The invention relates to a vulcanizable polymer composition comprising a) an polymer having an iodine value of lower than 400 g/100 g polymer, whereby the polymer is an elastomeric polymer that is a copolymer of ethylene, one or more C3 to C23 ?-olefins and a polyene monomer, preferably a copolymer of ethylene, propylene and a polyene monomer are b) an organic peroxide having aromatic groups and c) a zeolite having a pore size of 3 to 6 ?.Type: GrantFiled: December 1, 2014Date of Patent: November 5, 2019Assignee: LANXESS Deutschland GmbHInventors: Martin Van Duin, Philip James Hough
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Publication number: 20170015796Abstract: The invention relates to a vulcanizable polymer composition comprising a) an polymer having an iodine value of lower than 400 g/100 g polymer, whereby the polymer is an elastomeric polymer that is a copolymer of ethylene, one or more C3 to C23 ?-olefins and a polyene monomer, preferably a copolymer of ethylene, propylene and a polyene monomer are b) an organic peroxide having aromatic groups and c) a zeolite having a pore size of 3 to 6 ?.Type: ApplicationFiled: December 1, 2014Publication date: January 19, 2017Inventors: Martin VAN DUIN, Philip James HOUGH
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Publication number: 20130274360Abstract: The invention is related to a process for preparing a vulcanizable rubber composition comprising at least one elastomeric polymer, at least one phenol formaldehyde resin cross-linker, an activator package, and at least one activated zeolite, and a vulcanizable rubber composition prepared by said process. The invention also relates to a process for the manufacture of a vulcanized article comprising the steps of preparing a vulcanizable composition by the process mentioned before, shaping, and vulcanizing the vulcanizable rubber composition. The invention further relates to a vulcanized article.Type: ApplicationFiled: April 9, 2013Publication date: October 17, 2013Applicant: LANXESS ELASTOMERS B.V.Inventors: Philip James HOUGH, Martin VAN DUIN
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Patent number: 8334325Abstract: The present invention relates to a method for preferentially breaking cross-links in a vulcanised rubber, thereby de-vulcanising the rubber, by the use of a supercritical fluid, such as carbon dioxide. The supercritical fluid maintained at an appropriate solubility parameter, swells the vulcanised rubber to a state of equilibrium swell. The cross links (3) become fully extended and under strain to hold the internal pressures caused by the solvent swelling affect of the supercritical gas. When equilibrium swell has been achieved, the pressure within the processing vessel is rapidly dropped to a level of not less than 60% of the level at which saturation took place, causing a degassing and expansion of the supercritical fluid that has been absorbed within the vulcanised rubber. The resulting three dimensional separation of the rubber molecules will put a further rapid strain on the cross links, causing them to break (7), thereby giving the affect of de-vulcanization.Type: GrantFiled: August 12, 2008Date of Patent: December 18, 2012Assignee: Rubber-Regen LLPInventors: Michiel Jan Dees, Philip James Hough
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Publication number: 20120225963Abstract: The invention is related to a vulcanizable rubber composition comprising an elastomeric polymer, a phenol formaldehyde resin cross-linker, and an activator package characterized in that the vulcanizable rubber composition comprises an activated zeolite. The invention also relates to a process for the manufacture of a vulcanized article comprising the steps of preparing a vulcanizable rubber composition, shaping the vulcanizable rubber composition and vulcanizing the shaped rubber composition. The invention further relates to a vulcanized article.Type: ApplicationFiled: October 7, 2011Publication date: September 6, 2012Applicant: LANXESS ELASTOMERS B.V.Inventors: Van Martin Duin, Philip James Hough
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Patent number: 8188155Abstract: The present invention relates to a method for preferentially breaking cross-links in a vulcanized rubber, thereby de-vulcanizing the rubber, by the use of a supercritical fluid, such as carbon dioxide The supercritical fluid causes swelling of the said vulcanized rubber material, wherein the time of swelling is not more than 50% of the time required for full volume equilibrium swelling of the rubber in said supercritical fluid and the swelling is followed by a rapid reduction of the supercritical fluid pressure The cross links (3) become fully extended and under strain to hold the internal pressures caused by the solvent swelling affect of the supercritical gas When equilibrium swell has been achieved, the pressure within the processing vessel is rapidly dropped to a predetermined level causing a degassing and expansion of the supercritical fluid that has been absorbed within the vulcanized rubber The resulting three dimensional separation of the rubber molecules will put a further rapid strain on the cross lType: GrantFiled: August 12, 2008Date of Patent: May 29, 2012Assignee: Rubber-Regen LLPInventors: Michiel Jan Dees, Philip James Hough
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Publication number: 20110015284Abstract: The present invention relates to a method for preferentially breaking cross-links in a vulcanized rubber, thereby de-vulcanizing the rubber, by the use of a supercritical fluid, such as carbon dioxide The supercritical fluid causes swelling of the said vulcanized rubber material, wherein the time of swelling is not more than 50% of the time required for full volume equilibrium swelling of the rubber in said supercritical fluid and the swelling is followed by a rapid reduction of the supercritical fluid pressure The cross links (3) become fully extended and under strain to hold the internal pressures caused by the solvent swelling affect of the supercritical gas When equilibrium swell has been achieved, the pressure within the processing vessel is rapidly dropped to a predetermined level causing a degassing and expansion of the supercritical fluid that has been absorbed within the vulcanized rubber The resulting three dimensional separation of the rubber molecules will put a further rapid strain on the cross lType: ApplicationFiled: August 12, 2008Publication date: January 20, 2011Applicants: DSM IP ASSETS B.V., RUBBER-REGEN LLPInventors: Michiel Jan Dees, Philip James Hough
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Publication number: 20110009509Abstract: The present invention relates to a method for preferentially breaking cross-links in a vulcanised rubber, thereby de-vulcanising the rubber, by the use of a supercritical fluid, such as carbon dioxide. The supercritical fluid maintained at an appropriate solubility parameter, swells the vulcanised rubber to a state of equilibrium swell. The cross links (3) become fully extended and under strain to hold the internal pressures caused by the solvent swelling affect of the supercritical gas. When equilibrium swell has been achieved, the pressure within the processing vessel is rapidly dropped to a level of not less than 60% of the level at which saturation took place, causing a degassing and expansion of the supercritical fluid that has been absorbed within the vulcanised rubber. The resulting three dimensional separation of the rubber molecules will put a further rapid strain on the cross links, causing them to break (7), thereby giving the affect of de-vulcanisation.Type: ApplicationFiled: August 12, 2008Publication date: January 13, 2011Applicant: DSM IP ASSETS B.V.Inventors: Michiel Jan Dees, Philip James Hough