Patents by Inventor John D. Wilkey
John D. Wilkey 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: 9550869Abstract: We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0.05 to about 0.33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight.Type: GrantFiled: April 15, 2015Date of Patent: January 24, 2017Assignee: Chevron Phillips Chemical Company LPInventors: John Mark Brown, Nathan E. Stacy, Carleton E. Stouffer, John D. Wilkey, Michael A. Smith
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Publication number: 20150218325Abstract: We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0.05 to about 0.33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight.Type: ApplicationFiled: April 15, 2015Publication date: August 6, 2015Inventors: John Mark Brown, Nathan E. Stacy, Carleton E. Stouffer, John D. Wilkey, Michael A. Smith
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Patent number: 9040628Abstract: We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0.05 to about 0.33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight.Type: GrantFiled: November 20, 2012Date of Patent: May 26, 2015Assignee: Chevron Phillips Chemical Company LPInventors: John Mark Brown, Michael A. Smith, Nathan E. Stacy, Carleton E. Stouffer, John D. Wilkey
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Patent number: 8415429Abstract: We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0.05 to about 0.33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight.Type: GrantFiled: December 11, 2006Date of Patent: April 9, 2013Assignee: Chervron Phillips Chemical Company LPInventors: John Mark Brown, Michael A. Smith, Nathan E. Stacy, Carleton E. Stouffer, John D. Wilkey
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Patent number: 8236894Abstract: The present invention relates generally to monovinylarene-conjugated diene block copolymers adapted for shrinkable film applications. In one embodiment, a block copolymer is provided wherein an oriented 2 mil film of the block copolymer oriented at 100° C. or less exhibits less than 10% shrinkage at 70° C., and at least 70% shrinkage at 100° C.Type: GrantFiled: May 24, 2010Date of Patent: August 7, 2012Assignee: Chevron Phillips Chemical Company LPInventors: John M. Brown, Carleton E. Stouffer, John D. Wilkey
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Patent number: 8058346Abstract: The present invention relates to monovinylarene-conjugated diene copolymer compositions adapted for blendability with acrylate polymers. In some embodiments, such compositions are provided that are particularly resistant to blocking when stored in pellet form.Type: GrantFiled: July 19, 2010Date of Patent: November 15, 2011Assignee: Chevron Phillips Chemical Company LPInventors: John D. Wilkey, Carleton E. Stouffer, Steven D. Bridges
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Publication number: 20100286340Abstract: The present invention relates to monovinylarene-conjugated diene copolymer compositions adapted for blendability with acrylate polymers. In some embodiments, such compositions are provided that are particularly resistant to blocking when stored in pellet form.Type: ApplicationFiled: July 19, 2010Publication date: November 11, 2010Applicant: Chevron Phillips Chemical Company LPInventors: John D. Wilkey, Carleton E. Stouffer, Steven D. Bridges
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Publication number: 20100234532Abstract: The present invention relates generally to monovinylarene-conjugated diene block copolymers adapted for shrinkable film applications. In one embodiment, a block copolymer is provided wherein an oriented 2 mil film of the block copolymer oriented at 100° C. or less exhibits less than 10% shrinkage at 70° C., and at least 70% shrinkage at 100° C.Type: ApplicationFiled: May 24, 2010Publication date: September 16, 2010Applicant: Chevron Phillips Chemical CompanyInventors: John M. Brown, Carleton E. Stouffer, John D. Wilkey
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Patent number: 7776965Abstract: The present invention relates to monovinylarene-conjugated diene copolymer compositions adapted for blendability with acrylate polymers. In some embodiments, such compositions are provided that are particularly resistant to blocking when stored in pellet form.Type: GrantFiled: November 9, 2004Date of Patent: August 17, 2010Assignee: Chevron Phillips Chemical Company, LPInventors: John D. Wilkey, Carleton E. Stouffer, Steven D Bridges
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Patent number: 7737216Abstract: The present invention relates generally to monovinylarene-conjugated diene block copolymers adapted for shrinkable film applications. In one embodiment, a block copolymer is provided wherein an oriented 2 mil film of the block copolymer oriented at 100° C. or less exhibits less than 10% shrinkage at 70° C., and at least 70% shrinkage at 100° C.Type: GrantFiled: January 26, 2006Date of Patent: June 15, 2010Assignee: Chevron Phillips Chemical Company LPInventors: John M Brown, Carleton E Stouffer, John D Wilkey
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Publication number: 20080134642Abstract: We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0.05 to about 0.33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight.Type: ApplicationFiled: December 11, 2006Publication date: June 12, 2008Inventors: John Mark Brown, Michael A. Smith, Nathan E. Stacy, Carleton E. Stouffer, John D. Wilkey
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Patent number: 7193014Abstract: We disclose compositions, comprising (i) from about 25 parts by weight to about 95 parts by weight of a monovinylarene-conjugated diene coupled block copolymer comprising at least one tapered block, having a blocky monovinylarene content of less than 90 wt % of total monovinylarene units, and comprising a terminal monovinylarene block having a molecular weight of less than 60,000 g/mol; and (ii) from about 5 parts by weight to about 75 parts by weight of a monovinylarene-alkyl(meth)acrylate copolymer, comprising (ii-a) monovinylarene units and (ii-b) either alkyl acrylate units, alkyl methacrylate units, or both. The compositions can be used in shrink film or rigid packaging applications.Type: GrantFiled: February 20, 2004Date of Patent: March 20, 2007Assignee: Chevron Phillips Chemical Company, LPInventors: John D. Wilkey, Carleton E. Stouffer, Vergil H. Rhodes, Jay M. Chaffin, John M. Brown, David Hartsock, James A. Keane
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Patent number: 5422225Abstract: A photopolymerizable recording composition for water-washable printing plates, which comprises:(a) a water dispersible elastomeric blend of at least 20 percent by weight of an A-B-M-B-A block copolymer and an A-B-M block copolymer, wherein A is a vinyl aromatic hydrocarbon block, B is a conjugated diene block and M is an acrylic monomer block containing acid groups, and(b) a photopolymerization initiator.Type: GrantFiled: June 23, 1994Date of Patent: June 6, 1995Assignee: Shell Oil CompanyInventors: Jeffrey G. Southwick, Robert C. Bening, John D. Wilkey
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Patent number: 5405911Abstract: Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70% Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly lower viscosities at 30% to 70% 1,2-addition than similar polymers having either higher or lower amounts of 1,2-addition. The polymers are useful in making coatings, sealants, binders, and block copolymers with polyesters, polyamides, and polycarbonates.Type: GrantFiled: September 15, 1994Date of Patent: April 11, 1995Assignee: Shell Oil CompanyInventors: Dale L. Handlin, Jr., Daniel E. Goodwin, Carl L. Willis, David J. St. Clair, John D. Wilkey, Michael J. Modic, Craig A. Stevens
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Patent number: 5393843Abstract: Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70%. Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly lower viscosities at 30% to 70% 1,2-addition than similar polymers having either higher or lower amounts of 1,2-addition. The polymers are useful in making coatings, sealants, binders, and block copolymers with polyesters, polyamides, and polycarbonates.Type: GrantFiled: August 31, 1992Date of Patent: February 28, 1995Assignee: Shell Oil CompanyInventors: Dale L. Handlin, Jr., Daniel E. Goodwin, Carl L. Willis, David J. St. Clair, John D. Wilkey, Michael J. Modic, Craig A. Stevens
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Patent number: 5288800Abstract: It is herein disclosed a blend comprising modified block copolymers and aromatic polycarbonates. These blends have and exhibit improved mechanical properties, particularly improved low temperature Notched Izod impact strength relative to unmodified block copolymers, such as KRATON.RTM. G.Type: GrantFiled: December 28, 1992Date of Patent: February 22, 1994Assignee: Shell Oil CompanyInventor: John D. Wilkey
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Patent number: 5266635Abstract: Hydrogenated styrene/diene block copolymers having grafted p-hydroxystyrene groups improve the low temperature impact strength of polycarbonates when the phenolic groups are reacted with the polycarbonates.Type: GrantFiled: February 26, 1993Date of Patent: November 30, 1993Assignee: Shell Oil CompanyInventor: John D. Wilkey
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Patent number: RE39559Abstract: Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70%. Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly lower viscosities at 30% to 70% 1,2-addition than similar polymers having either higher or lower amounts of 1,2-addition. The polymers are useful in making coatings, sealants, binders, and block copolymers with polyesters, polyamides, and polycarbonates.Type: GrantFiled: September 5, 2003Date of Patent: April 10, 2007Assignee: Kraton Polymer US L.L.C.Inventors: Dale L. Handlin, Jr., Daniel E. Goodwin, Carl L. Willis, David J. St. Clair, John D. Wilkey, Michael J. Modic, Craig A. Stevens
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Patent number: RE39617Abstract: Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70% Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly lower viscosities at 30% to 70% 1,2-addition than similar polymers having either higher or lower amounts of 1,2-addition. The polymers are useful in making coatings, sealants, binders, and block copolymers with polyesters, polyamides, and polycarbonates.Type: GrantFiled: September 5, 2003Date of Patent: May 8, 2007Assignee: Kraton Polymers US LLCInventors: Dale L. Handlin, Jr., Daniel E. Goodwin, Carl L. Willis, David J. St. Clair, John D. Wilkey, Michael J. Modic, Craig A. Stevens
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Patent number: H1064Abstract: A process is provided to graft functional moieties to base polymers by contacting the base polymer with functional group containing diazo compounds. The preferred function group containing diazo is ethyl diazoacetate. The base polymer is a copolymer or polymer having monomer units of alpha olefins, conjugated diolefins, vinyl aromatics, or hydrogenated conjugated diolefins. The process is performed in a melt and results in low levels of scissioning, coupling and degradation.Type: GrantFiled: May 16, 1990Date of Patent: June 2, 1992Assignee: Shell Oil CompanyInventor: John D. Wilkey