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Shell Oil Company Patents
Assignee:
Shell Oil Company
Address:
Houston, TX
No. of patents:
5895
Patents:




Patent Number Title Of Patent Date Issued
H1798 Soft compounds containing elastomeric metallocene polyolefins and styrenic block copolymers July 6, 1999
A soft multicomponent compound comprising a styrenic block copolymer having good elastomeric properties, a paraffinic oil, a crystalline polyolefin and a metallocene polyolefin having a density from 0.86 to 0.91, a molecular weight distribution less than 3, and good distribution of e
H1786 Process for radiation cured conjugated diene-vinyl aromatic hydrocarbon block copolymers February 2, 1999
In a process of curing epoxidized polymers of conjugated dienes which contain aromatic moieties by exposing the polymers to ultraviolet radiation in the presence of a photoinitiator, the improvement which comprises reducing the amount of irradiation necessary to achieve an effective
H1784 Tribological arrangement February 2, 1999
Arrangement comprising parts which rub against each other, in which arrangement the contacting surface of the one part comprises a polyketone and the contacting surface of the other part comprises a polymer.
H1735 EPDM roofing membrane adhesive system based on hydrogenated styrene-diene-styrene block copolyme June 2, 1998
This invention is an EPDM roofing membrane adhesive system which comprises an outer protective layer of EPDM and an adhesive layer coated on the underside of said EPDM layer to adhere the membrane to a similarly coated EPDM membrane or to the primed surface of a roof. The adhesive layer
H1734 Process for making cured foamed articles from epoxidized diene polymers June 2, 1998
A process for curing and foaming epoxidized diene polymers which comprises contacting the polymer with a nonaromatic anhydride curing agent at an epoxy/anhydride molar ratio from 0.6 to 1.4 and from 2 to 10 phr of an accelerator at a temperature of from 100.degree. to 200.degree. C. for
H1730 Functionalized star polymers May 5, 1998
Block polymers of the star type contain a central core of crosslinked bisunsaturated compound and a plurality of functionalized branches attached to the core, each branch containing at least a terminal portion of polymerized alkyl methacrylate, polymerized through the ethylenic unsat
H1725 Clear polyphenylene ether/block copolymer composition May 5, 1998
A clear polyphenylene ether composition having improved impact strength comprising said polyphenylene ether and a block copolymer having a resinous block and a rubbery block wherein the resinous block is relatively high molecular weight and is derived from either styrene or butadiene
H1703 Removal of lithium from polymer cements January 6, 1998
A process for preparing a polymer cement which is relatively free of alkali metal salt by preparing the polymer cement with a polymerization terminating agent which is an acid which leaves alkali metal salt in the cement which is readily removable by centrifugation.
H1685 Drilling fluid October 7, 1997
Zinc oxide and zirconium oxide are used as weighting materials for water and oil based drilling fluids for horizontal wells.
H1680 Secondary alkyl sulfate-containing hard surface cleaning compositions September 2, 1997
The present invention relates to a hard surface cleaning composition comprising from about 0.1 percent by weight to about 50 percent by weight, basis the total weight of the composition, of one or more secondary alkyl sulfate compounds.
H1676 Site management system for containing hazardous spills and leaks September 2, 1997
An improved system for monitoring fuel storage and handling equipment which employs containment devices, leak detectors, storage tank level detectors, containment shrouds surrounding each mechanical device for extraction or addition of fuel from storage tanks is presented in which nonmec
H1652 Stabilized polymer compositions comprising one or more lubricating additives June 3, 1997
It is herein disclosed a composition comprising a major amount of polymers of carbon monoxide and one or more ethylenically unsaturated compounds and a minor amount of one or more external lubricating additives having an average molecular weight of at least 500. The composition may furth
H1632 Liquid laundry detergent formulations February 4, 1997
The present invention provides a clear, flowable liquid laundry detergent formulation comprising one or more of certain alcohol ethoxylate compounds, one or more alcohol ethoxysulfate compounds, one or more alkylaryl sulfonate compounds, water and, optionally, one or more organic wat
H1622 Hydrogenated diblock copolymers for adhesives and sealants with improved resistance to degradati December 3, 1996
Adhesive and sealant compositions having improved resistance to a degradation which comprises: (a) a hydrogenated triblock, multiblock, radial, or star block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, (b) from 3 to 50 percent by weight of the total composition
H1601 Compatibilized polyketone polymer blend October 1, 1996
A blend of polyketone and polycarbonate polymers is presented. The polymer blend is produced by blending polyketone polymer, polycarbonate polymer, and a reactive graft compatibilizer. The a reactive graft compatibilizer compatibilizes the blend.
H1597 Epoxidized diene elastomers for exterior block crosslinking September 3, 1996
An epoxidized diene block polymer comprising at least interior and exterior diene blocks wherein the exterior diene blocks contain a greater concentration of di-, tri- and tetrasubstituted olefinic epoxides than the interior blocks and wherein the exterior blocks contain from 0.2 to 10 M
H1583 Elastomeric polybutylene polymer August 6, 1996
It is herein disclosed a novel elastomeric polybutylene-1 having and exhibiting syndiotacticity of greater than ten percent, and possessing other desirable properties.The novel elastomeric polybutylene-1 can be blended with compatible materials such as polypropylene and its copolymers, e
H1581 Process for the reduction of diene polymer hot melt adhesive color (II) August 6, 1996
A method of reducing the color of a hot melt adhesive formulation comprising a coupled polymer of a conjugated diene which comprises adding to the formulation an amount of 4,4'-bis(alpha,alpha-dimethylbenzyl)diphenylamine sufficient to reduce color formation. This method is especiall
H1580 Asphalt composition containing highly coupled radial polymers August 6, 1996
A bituminous composition comprising a compatible bituminous component and a completely non-tapered radial block copolymer of a conjugated diolefin and a vinyl aromatic hydrocarbon wherein the polymer has from 3 to 6 arms, a molecular weight of from 150,000 to 400,000, a coupling efficien
H1564 Functionalized block copolymers cured with isocyanates July 2, 1996
The present invention describes an isocyanate-cured hydroxy, acid or amine functionalized selectively hydrogenated block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene. The present invention also describes coatings, adhesives, sealants and modified asphalts made the
H1559 Secondary alkyl sulfate-containing light duty liquid detergent compositions July 2, 1996
The present invention relates to light duty liquid detergent compositions containing one or more secondary alkyl sulfate surfactant components.
H1542 Fiber-reinforced composites June 4, 1996
A composite comprising two or more layers of fiber-reinforced, crosslinked epoxy resin, wherein adjacent layers of the reinforced, crosslinked epoxy resin are interspaced with a layer of a thermoplastic polymer, which thermoplastic polymer comprises a linear polymer of carbon monoxide wi
H1539 Method of reducing hydrogen chloride in synthesis gas June 4, 1996
The invention is a method for reducing the hydrogen chloride content of a synthesis gas stream by (a) gasifying a carbonaceous feed material in an entrained flow gasifier to produce a gas/solids mixture of hydrogen, carbon monoxide, hydrogen chloride gas, and flyslag particles; (b) passi
H1538 Use of coal feedstock to a coal gasification plant for removing sulfur from a gaseous stream June 4, 1996
A process of utilizing a portion of a coal feedstock to a coal gasification plant for the removal of sulfur compounds from a gaseous stream comprising sulfur dioxide and hydrogen sulfide, particularly a tail gas stream from a sulfur recovery plant, by contacting the gaseous stream with t
H1518 Impact modification of polypropylene with styrene/isoprene triblock copolymers February 6, 1996
Compositions consisting essentially of from 60% to 95% by weight of the polymer components of a high flow polypropylene and from 40% to 5% by weight of a polystyrene-hydrogenated polyisoprene-polystyrene block copolymer have excellent low temperature impact strength and high heat dis
H1517 Radiation curable printing ink composition February 6, 1996
The invention is a radiation curable printing ink composition comprising a liquid viscous epoxidized diene polymer and a pigment. Preferred diene polymers are block copolymers comprising at least interior and exterior diene blocks wherein the exterior diene blocks contain a greater c
H1484 Method for obtaining polymer/bitumen blends with improved stability and polymer efficiency September 5, 1995
The present invention is an improvement in a process for producing a blend of bitumen and a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene comprising mixing from 88 to 99.5 weight percent of bitumen with 0.5 to 12 weight percent copolymer at 135.degree. to 250
H1482 Coatings for metals based on functionalized block copolymers September 5, 1995
A permanent, flexible coating for protecting and lubricating metal that is formed into articles by single step or multiple step bending or stamping deformation is disclosed. The coating comprises a block copolymer which is formed from selective hydrogenation of an (A-B).sub.n -A or (A-B)
H1478 Secondary alkyl sulfate-containing liquid laundry detergent compositions September 5, 1995
The present invention relates to a laundry liquid detergent composition comprising from about 1 percent by weight to about 18 percent by weight, basis the total weight of the composition, of one or more secondary alkyl sulfate compounds, from about 6 percent by weight to about 18 percent
H1467 Detergent formulations containing a surface active composition containing a nonionic surfactant August 1, 1995
This invention relates to detergent formulations containing a surface active composition comprising one or more nonionic surfactant components and one or more secondary alkyl sulfate anionic surfactant components.
H1464 Method for preparing asymmetric radial copolymers having two first arms and two second arms July 4, 1995
A method for preparing asymmetric radial polymers wherein the different polymeric arms are contacted sequentially with a coupling agent. The method narrows the relative arm distribution of the several asymmetric radial polymers produced and significantly increases the amount of total
H1438 Modified block copolymers functionalized in the monoalkenyl aromatic or vinylarene block May 2, 1995
The present invention relates to a thermally stable modified selectively hydrogenated high 1,2 content block copolymer wherein a functional group is grafted to the block copolymer in the vinylarene block.
H1419 Functionalized modified high melt flow polyolefins February 7, 1995
It is herein provided a polymer composition having and exhibiting improved bonding to incompatible materials comprising functionalized high melt flow polyolefins and unfunctionalized polyolefins. More specifically, these compositions have and exhibit improved adhesion to polar materials,
H1405 Epoxy resin composition January 3, 1995
According to this invention, an epoxy resin composition is provided with a finely dispersed phase of an elastomeric block copolymer having at least one block of a hydrogenated conjugated diene connected to at least one block of a carboxylated monoalkenyl aromatic hydrocarbon. The block
H1404 Polyketone polymer blends January 3, 1995
Improved compositions comprise polymer blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with an amorphous olefinic copolymer which is optionally maleated. The blends demonstrate improved barrier properties.
H1403 Polyketone polymer blends January 3, 1995
Improved compositions comprise polymer blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a polyblend with a rubber modifier incorporated therein, and optionally, an acidic polymer containing moieties of an .alpha.-olefin
H1402 Styrene-isoprene-styrene block copolymer composition and adhesives made therefrom January 3, 1995
A linear styrene-isoprene-styrene block copolymer composition comprised of linear polymeric blocks wherein the block copolymer composition has a coupling efficiency of 25 to 82 percent, a polystyrene content of from 19 to 27 percent by weight, a polystyrene block molecular weight (peak
H1387 Polyphenylene ether/thermoplastic elastomer block copolymer blends for adhesives and sealants December 6, 1994
The present invention provides a method for making a method for making high service temperature rubber compound, hot melt adhesive or sealant compositions by combining a polyphenylene ether resin with an elastomeric block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene,
H1375 Polyketone polymer blends November 1, 1994
Improved compositions with a good balance of properties comprise polymer blends of a linear alternating polyketone polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a cracked polyolefin polymer. The cracked polyolefin polymer is preferably a cracked
H1346 Functionalization of polyketone polymers August 2, 1994
The invention discloses a novel method of functionalizing polyketone polymers by reacting with primary aromatic amines to form substituted pyrroles. The advantages of this method include but are not limited to permissible addition of small molecules to produce a wide variety of produ
H1338 Oiled polymer and process for the production thereof July 5, 1994
Oiled SIS polymers and processes for their production are disclosed. These processes result in advantages including reduced mixing time and less shear degradation. An adhesive composition comprising the oiled polymer of the invention is also disclosed.
H1325 One stage coal gasification process July 5, 1994
An improved one stage, upflow process for coal gasification whereby a dry particulate carbonaceous material and an oxygen-containing gas are combusted in a vertical gasifier thereby converting the carbonaceous material (coal) into a hot gas. The hot, entrained flyslag gas is then con
H1303 Removal of nickel catalyst from polymer solutions by water addition and centrifugation April 5, 1994
A process is provided comprising the steps of contacting a Group VIII metal hydrogenation catalyst residue containing polymer solution with from about 2 to about 50 parts by weight water based on 100 parts by weight of polymer solution, centrifuging the polymer from metal containing part
H1302 Polyketone polymer blends April 5, 1994
Improved compositions comprise polymer blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with an ethylene/propylene/non-conjugated diene terpolymer, and, optionally, an acidic polymer containing moieties of an .alpha.-ole
H1301 Method for controlling polymer shrinkage April 5, 1994
It is herein disclosed a method for controlling the shrinkage of parts formed from semi-crystalline polyolefin involving the addition of a suitable nucleant(s), in a suitable amount. This method results in reduced processing costs primarily due to reduced processing cycle time and to
H1278 Elastomeric, ceramic fiber reinforced polyketone polymer blends January 4, 1994
A composition comprising a non-miscible blend of, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and lesser amounts of a maleated, partially hydrogenated block copolymer, said block copolymer having at leas
H1277 Modified poly(1-butene)resins composition January 4, 1994
A poly(1-butene) resin composition having and exhibiting excellent mechanical strength, rigidity, creep resistance and chloride water resistance is disclosed. The poly(1-butene) resin composition is particularly suitable as a material for joints pV in hot water pipes.The poly(l -butene)
H1274 Polypropylene-polybutylene heat sealable laminated packaging film with improved optics January 4, 1994
A packaging film comprising a core layer of polypropylene and a surface layer comprising a propylene ethylene random copolymer wherein at least one of said core or said surface layers contains a minor amount of a high melt index butylene homopolymer.
H1255 Polyester molding compositions November 2, 1993
Polyester molding compositions which contain an unsaturated polyester and an additional monomer for curing the polyester are improved by addition of a block copolymer which is modified with an unsaturated polyester. The block copolymer is an unsaturated block copolymer of a monoalkenyl
H1254 Polymerization process for butene-1 and alpha-olefin monomers November 2, 1993
It is herein disclosed, a process for polymerizing butene-1 into homopolymers and copolymers, using a catalyst system containing titanium trichloride, diethylaluminum chloride, and a substituted phenol in specified molar proportions. It is further disclosed, products made by the inve

 
 
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