Patents Represented by Attorney, Agent or Law Firm John E. Schneider
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Patent number: 6303691Abstract: The invention relates to impact modifiers for polyamide compositions which improve the impact strength of the polyamides without adversely affecting the flexural modulus of the composition. The impact modifiers comprise blends of halogenated copolymers of a C4 to C7 isomonoolefin and an alkyl/styrene with a polyolefin.Type: GrantFiled: June 7, 1993Date of Patent: October 16, 2001Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Thomas Chen-chi Yu, Kenneth William Powers, Hsien Chang Wang
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Patent number: 6232418Abstract: This invention relates to novel resins, blends of the novel resins with base polymers and a process for producing a resin comprising combining a reactor feed blend comprising: (a) at least 2 weight % of isoprene, (b) at least 2 weight % of one or more of dicyclopentadiene, substituted cyclopentadienes and substituted dicyclopentadienes, (c) at least 2 weight % piperylene, (d) at least 1 weight % aromatic olefins, and (e) 0 to 92 weight % of additional aliphatic olefins, based upon the weight of the reactor feed blend, with a polymerization catalyst under polymerization conditions, preferably where the ratio of component (c) to component (b) is less than 8 and the ratio of component (a) to component (b) is less than 5.Type: GrantFiled: June 17, 1997Date of Patent: May 15, 2001Assignee: Exxon Mobile Chemical Patents, INCInventors: Anne Vera Macedo, Martijn Hendrik Willem Burgers, Leonor Ma Garcia, Lutz Erich Jacob, Jozef Aleida Florent Smits, R. Derric Lowery, Jerry Lee Haluska, Charles L. Sims, Frank Carl Jagisch
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Patent number: 6207754Abstract: This invention relates to thermoplastic olefin compositions of a low modulus which are suitable for fabrication into flexible skins and liners for applications which heretofore have been serviced by skins and liners produced essentially only from plasticized polyvinyl chloride resin compositions. TPO compositions of this invention comprise an impact modified polypropylene resin and a “plastomer” resin intimately blended in proportions with respect of one to another to provide a blend composition having a 1% secant modulus of less than 40,000 psi, and preferably less than 30,000 psi. Optionally, and preferably, the blend also comprises as a discrete component apart from the impact modified polypropylene an olefin copolymer elastomer or a cross-linked elastomer concentrate. Optionally the blend may contain other polyolefin components to alter its stiffness in desirable ways.Type: GrantFiled: May 29, 1997Date of Patent: March 27, 2001Assignee: Exxon Chemical Patents, Inc.Inventor: Thomas Chen-Chi Yu
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Patent number: 6111027Abstract: This invention relates to an adhesive composition comprising a copolymer comprising units derived from one or more macromonomers and an unsaturated acid or an unsaturated anhydride wherein the weight average molecular weight of the copolymer is at least twice the weight average molecular weight of the macromonomer, the melt index of the copolymer is 1 dg/min or more, and wherein the macromonomer:(1) has a weight average molecular weight between 500 and 100,000;(2) has at least 30% terminal unsaturation; and(3) comprises a copolymer of ethylene and at least one .alpha.-olefin, and/or a copolymer of propylene and ethylene or an .alpha.-olefin.Type: GrantFiled: October 1, 1998Date of Patent: August 29, 2000Assignee: Exxon Chemical Patents, IncInventors: Pamela J. Wright, Dennis George Peiffer, Kenneth Lewtas, Quoc Luvinh, Joseph Jacques Ripet, Anne Vera Macedo
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Patent number: 6028144Abstract: A composition, suitable for use in producing a tire carcass, is provided. The composition comprises a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene; a rubber such as a blend of natural rubber and a copolymer of styrene and butadiene; carbon black, and a plasticizer oil. Tires comprising carcasses made of the composition are also provided.Type: GrantFiled: January 5, 1993Date of Patent: February 22, 2000Assignee: Exxon Chemical Patents, Inc.Inventors: Vi Thi Nguyen, Patrick Anthony Grosso
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Patent number: 5874512Abstract: Resins which are the copolymers of an alpha-olefin, a cyclic olefin, and an aromatic-group-containing monomer are provided. The cyclic olefins retain their cyclic structures and the aromatic-group-containing monomers retain their aromatic structures after copolymerization into the resin product. Methods for production of the new resins in the presence of a metallocene catalyst system are also provided. New adhesive compositions containing the resin and articles using the new adhesive compositions are also part of the invention.Type: GrantFiled: September 18, 1997Date of Patent: February 23, 1999Inventors: James McCleod Farley, Martha Hetzel Robertson, Charles Lewis Sims
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Patent number: 5853874Abstract: A low melt viscosity hot melt pressure sensitive adhesive composition having enhanced tack properties is provided. The composition is based on an S-I-S block copolymer having polystyrene and polyisoprene block segments blended with a petroleum tackier resin which is the Friedel Crafts polymerization product of (i) a cracked petroleum feed containing C.sub.5 olefins and diolefins or a mixture of C.sub.5 and C.sub.6 olefins and dioelefins copolymerized with (ii) from about 5 to 15% by weight of a monovinyl aromatic monomer having 8 or 9 carbon atoms, e.g., styrene. The composition optionally also includes a polystyrene--polyisoprene diblock copolymer and a processing oil. The composition may be readily applied as solvent-free melt to various substrates using coating die technology because of its low melt viscosity at coating temperatures.Type: GrantFiled: July 22, 1997Date of Patent: December 29, 1998Assignee: Exxon Chemical Patents, Inc.Inventor: Lutz Erich Jacob
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Patent number: 5714254Abstract: A low melt viscosity, hot melt pressure sensitive adhesive composition having enhanced tack properties is provided. The composition is based on an S-I-S block copolymer having polystyrene and polyisoprene block segments blended with a petroleum tackifier resin which is a blend of a C.sub.5 -C.sub.9 aromatic modified aliphatic petroleum resin and a hydrogenated, alicyclic monomer containing hydrocarbon resin. The composition optionally also includes a polystyrene-polyisoprene diblock copolymer and a processing oil. The composition may be readily applied as solvent-free melt to various substrates using coating die technology because of its low melt viscosity at coating temperatures.Type: GrantFiled: May 29, 1997Date of Patent: February 3, 1998Assignee: Exxon Chemical Patents Inc.Inventor: Lutz Erich Jacob
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Patent number: 5693721Abstract: The invention comprises a hydrogenated hydrocarbon resin suitable as tackifier for acrylic adhesive polymers, having greater than 20% aromatic protons after hydrogenation, a z-average molecular weight of less than about 1800, a narrow molecular weight distribution, typically of less than or equal to 2.1, and a softening point of from 40.degree. C. to about 120.degree. C. It additionally comprises a method for preparing a hydrogenated aromatic tackifier resin suitable as tackifier for acrylic adhesive polymers comprising the steps of: a) polymerizing under Friedel-Crafts polymerization conditions steam-cracked petroleum distillates, or fractions thereof; having boiling points between about 135.degree. C. and 220.degree. C. and containing at least 40% of by weight vinyl aromatic monomer contents, in the presence of a chain transfer agent; and b) catalytically hydrogenating the results of a) such that at least 75% of the aromaticity is retained.Type: GrantFiled: February 14, 1997Date of Patent: December 2, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Steven George Hentges, Frank Carl Jagisch, Edward Francis Smith
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Patent number: 5684077Abstract: A composition suitable for use in producing mold curing elements is provided. The composition comprises a halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene; a filler such as carbon black, a process oil, and a curing agent. A curing element comprising the composition is also provided.Type: GrantFiled: May 12, 1995Date of Patent: November 4, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Donald Sheley Tracey, Irwin Jerome Gardner, Bernard Jean Costemalle
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Patent number: 5665183Abstract: A tire inner-liner, comprising a solid rubber and a complex, said complex comprising a reactive rubber and a layered silicate clay uniformly dispersed therein. The complex comprising the clays significantly improve the low air permeability of the tire inner-liner without adversely affecting the rubber composition.Type: GrantFiled: June 7, 1995Date of Patent: September 9, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Edward Nathan Kresge, David John Lohse
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Patent number: 5652308Abstract: Novel tackifier resins having a M.sub.n of 5,000 or less and a T.sub.g of 0.degree. C. or above are produced by combining a metallocene catalyst with an alpha-olefin and a cyclic monomer. New adhesives are produced by blending the novel tackifier with a base polymer.Type: GrantFiled: July 21, 1995Date of Patent: July 29, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Natalie Ann Merrill, James McLeod Farley, Martha Hetzel Robertson, Charles Lewis Sims, Richard Byron Pannell, Angelo Anthony Montagna
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Patent number: 5591551Abstract: A lithographic coating and method of framing a lithographic image are disclosed. The method comprises coating at least a portion of a surface of an article with a radiation-crosslinkable polymer, and exposing the coated surface to a pattern of radiation to crosslink the polymer in a lithographic image. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with a radiation reactive group at the para-alkyl group of the para-alkylstyrene.Type: GrantFiled: June 7, 1995Date of Patent: January 7, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Jay D. Audett, Kenneth O. McElrath
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Patent number: 5587261Abstract: A lithographic coating and method of framing a lithographic image are disclosed. The method comprises coating at least a portion of a surface of an article with a radiation-crosslinkable polymer, and exposing the coated surface to a pattern of radiation to crosslink the polymer in a lithographic image. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with a radiation reactive group at the para-alkyl group of the para-alkylstyrene.Type: GrantFiled: June 7, 1995Date of Patent: December 24, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Jay D. Audett, Kenneth O. McElrath
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Patent number: 5585225Abstract: A lithographic coating and method of framing a lithographic image are disclosed. The method comprises coating at least a portion of a surface of an article with a radiation-crosslinkable polymer, and exposing the coated surface to a pattern of radiation to crosslink the polymer in a lithographic image. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with a radiation reactive group at the para-alkyl group of the para-alkylstyrene.Type: GrantFiled: October 27, 1994Date of Patent: December 17, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Jay D. Audett, Kenneth O. McElrath
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Patent number: 5585416Abstract: A lithographic coating and method of framing a lithographic image are disclosed. The method comprises coating at least a portion of a surface of an article with a radiation-crosslinkable polymer, and exposing the coated surface to a pattern of radiation to crosslink the polymer in a lithographic image. The functionalized polymer is a copolymer of an isoolefin of 4 to 7 carbon atoms and para-alkylstyrene, wherein the para-alkylstyrene is functionalized with a radiation reactive group at the para-alkyl group of the para-alkylstyrene.Type: GrantFiled: June 7, 1995Date of Patent: December 17, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Jay D. Audett, Kenneth O. McElrath
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Patent number: 5576373Abstract: Tire innerliners and inner tubes are prepared from blends of general purpose rubbers and silicate clay. The clays provide the requisite low air permeability without adversely affecting the flexibility of the rubber composition.Type: GrantFiled: June 7, 1995Date of Patent: November 19, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Edward N. Kresge, David J. Lohse
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Patent number: 5576372Abstract: Tire innerliners and inner tubes are prepared from blends of general purpose rubbers and silicate clay. The clays provide the requisite low air permeability without adversely affecting the flexibility of the rubber composition.Type: GrantFiled: June 7, 1995Date of Patent: November 19, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Edward N. Kresge, David J. Lohse
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Patent number: 5574084Abstract: Modifiers for ethylene copolymers for use in hot melt adhesives are provided, particularly modifiers for ethylene vinyl acetate-based adhesives which improve adhesive properties are provided. Blends comprising ethylene copolymers, modifiers and tackifiers and applications thereof are also provided for.Type: GrantFiled: November 14, 1994Date of Patent: November 12, 1996Assignee: Exxon Chemical Patents, Inc.Inventor: Andrew J. Peacock
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Hydrocarbon resins, processes for their manufacture and adhesive compositions containing such resins
Patent number: 5571867Abstract: The invention relates to a hydrogenated hydrocarbon resin of a softening point from 75.degree. to 110.degree. C. having an Mw/Mn of less than 2 as determined by GPC, an aromaticity level of from 15 to 25%, and a melt viscosity in mPa.s at a shear rate of 50 sec.sup.-1 of less than 500 mPa.s, preferably less than 300 mPa.s at 160 .degree. C.Type: GrantFiled: January 9, 1995Date of Patent: November 5, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Quoc Luvinh, Anne V. Macedo, Richard J. F. Rydzkowski