Patents Represented by Attorney, Agent or Law Firm Donald F. Haas
  • Patent number: 6136872
    Abstract: The present invention is a freeze-dried polystyrene-polysiloxane foam having a density of 0.05 to 0.8 grams per cubic centimeter and a void volume of 20 to 99 percent. These foams exhibit good compressibility and rebound and are useful in insulation and sound-deadening applications.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: October 24, 2000
    Assignee: Shell Oil Company
    Inventor: Ronald James Hoxmeier
  • Patent number: 6133350
    Abstract: An oil-free compound which comprises from 20 to 90% by weight of a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene optionally hydrogenated, from 10 to 70% by weight of a low viscosity amorphous polyolefin, and from 0.1 to 20% by weight of carbon black. A stable oil-free bituminous composition which comprises from 80 to 98% by weight of a bituminous component, from 2 to 20% by weight of the above compound. A membrane suitable for single ply roofing prepared from the above compound.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: October 17, 2000
    Assignee: Shell Oil Company
    Inventors: Robert Quillin Kluttz, Harriet Jeanne Spinn Kendrick
  • Patent number: 6127444
    Abstract: The present invention relates to a polymeric compound comprising(a) 100 parts by weight of a block copolymer comprising at least two external monovinyl aromatic hydrocarbon blocks and at least one internal hydrogenated conjugated diene block, wherein the total monovinyl aromatic hydrocarbon content is from 20 to 50% by weight and the total apparent molecular weight is from 140,000 g/mol to 400,000 g/mol;(b) 50 to 250 phr of a plasticiser;(c) 10 to 100 phr of a polybutene-1 polymer having a melt index at 2.16 kg/190.degree. C. of from 0.05 to 400;(d) a blowing agent.The present invention further relates to use of the compound for the preparation of foamed compounds; to a foaming process; to a masterbatch blend; to a foamed compound; and to articles containing the foamed compound.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: October 3, 2000
    Assignee: Shell Oil Company
    Inventor: Ilham Kadri
  • Patent number: 6120913
    Abstract: The present invention provides a roofing shingle which is comprised of a support material and a bituminous composition which comprises a bitumen component, less than 15% by weight of a block copolymer composition, based on total weight of block copolymer composition and bitumen component, and more than 40% by weight of a filler, based on total weight of block copolymer, bitumen component and filler, which block copolymer composition comprises at least one block of a conjugated diene and at least two blocks of a monovinylaromatic hydrocarbon, wherein the block copolymer composition has a vinyl content of at least 25% by weight based on the total diene content and optionally a diblock content of 25 wt % or less, and any diblock copolymer present has an apparent molecular weight which is in the range of from 60,000 to 170,000.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: September 19, 2000
    Assignee: Shell Oil Company
    Inventors: Robert Quillin Kluttz, Gerardus Wilhelmus Jozef Heimerikx
  • Patent number: 6103846
    Abstract: The preparation of di- or polyfunctional polymers by anionic polymerization using functionalized initiators having the structure R.sup.1 R.sup.2 R.sup.3 Si--A--B, wherein each R is methyl and A is a hydrocarbon bridging group containing from 1 to 25 carbon atoms, and B is an alkali metal, is improved when polymerization occurs in the presence of a polymerization termination inhibitor which is a metal alkyl which has been added at a concentration to afford a molar ratio of the termination inhibitor to living polymer chain ends of about 0.1:1 to about 10:1.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: August 15, 2000
    Assignee: Shell Oil Company
    Inventors: Carl Lesley Willis, Robert Charles Bening, Michael Wayne Potter, Grant Wesley Haddix, David Karl Schisla, Thomas Carl Semple, Daniel Earl Goodwin
  • Patent number: 6087455
    Abstract: A process for the hydrogenation of a macromolecular organic substrate which process comprises contacting the organic substrate at elevated temperature and at elevated pressure with a catalyst comprising a hydrogenating metal or precursor thereof in the form of a megaporous structure having megapore diameter in excess of 10 micron.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: July 11, 2000
    Assignee: Shell Oil Company
    Inventors: Jean-Paul Lange, Lodewijk Schoon
  • Patent number: 6077925
    Abstract: The present invention relates to a structural adhesive compositions comprising a polyurethane which is obtainable by reacting a polyisocyanate having a functionality in the range of from 2 to 3 and a hydrogenated polybutadiene polyol having a functionality in the range from 1.5 to 2.5 and a 1,2 vinyl content prior to hydrogenation of from 30 to 70% by weight, and wherein the NCO:OH molar ratio is in the range from more than 1.05 up to 1.6.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: June 20, 2000
    Assignee: Shell Oil Company
    Inventor: Eric-Jack Gerard
  • Patent number: 6060560
    Abstract: This invention provides a process for producing a polyurethane resin from a hydrogenated polydiene diol or polyol having a functional group equivalent weight of 750 to 10000, a reinforcing agent having a functional group equivalent weight of 30 to 200, and a polyisocyanate. In a preferred embodiment, the process comprises reacting at least one of a polydiene diol or a reinforcing diol or triol with the polyisocyanate at an NCO/functional group molar ratio of 0.4 to 0.7 or a functional group/NCO molar ratio of 0.25 to 0.55 to form a stable reaction product, adding to this reaction product an additional sufficient amount of the polyisocyanate and, as needed, one or both of the polydiene diol or the reinforcing agent to bring the NCO/functional group ratio up to from 0.9 to 1.1 and to achieve a polydiene diol content of 35 to 80% w (on solids basis) and a reinforcing agent content of 2 to 17% w (on solids basis), and reacting this final mixture to form a crosslinked polyurethane product.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: May 9, 2000
    Assignee: Shell Oil Company
    Inventor: David John St. Clair
  • Patent number: 6060542
    Abstract: The invention provides a process for preparing a bitumen composition comprising blowing a mixture with an oxygen-containing gas which mixture comprises a bitumen having a penetration of less than 300 dmm (as measured by ASTM D 5 at 25.degree. C.), a thermoplastic rubber which is present in an amount of less than 10% w, and a bitumen blowing catalyst which is present in an amount of more than 0.5% w and up to 3% w, both based on total mixture; and bitumen compositions obtainable by such process.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: May 9, 2000
    Assignee: Shell Oil Company
    Inventors: Gerrit Van Gooswilligen, Michael Christopher Phillips, Koen Steernberg
  • Patent number: 6043316
    Abstract: A crosslinkable composition for coating primed and unprimed substrates comprising from 10 to 80 percent by weight of a hydroxy functional polydiene polymer having a functionality of at least 1.3, 8 to 60 percent by weight of an amino resin crosslinking agent, and 2 to 40 percent by weight of a reinforcing agent. The invention also encompasses a process to make such compositions by partially reacting the three components for 0.5 to 10 hours at 60 to 120.degree. C., optionally in the presence of a small amount of catalyst, to give phase stable compositions and subsequently completely crosslinking the composition by baking the composition on a substrate.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: March 28, 2000
    Assignee: Shell Oil Company
    Inventor: David John St. Clair
  • Patent number: 6034042
    Abstract: The present invention includes star polymers which can be used as viscosity index improvers in oil compositions formulated for high performance engines. The star polymers have tetrablock copolymer arms of hydrogenated polyisoprene-polybutadiene-polyisoprene with a block of polystyrene and which provide excellent low temperature performance in lubricating oils, exhibit good thickening efficiency, and are finishable as polymer crumb.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: March 7, 2000
    Assignee: Shell Oil Company
    Inventor: Robert Barnett Rhodes
  • Patent number: 6013717
    Abstract: Free flowing powder composition with a particle size of 800 .mu.m or less, comprising(a) 100 parts by weight of a block copolymer, comprising at least one poly (predominantly monovinyl aromatic hydrocarbon) block and at least one substantially hydrogenated poly(predominantly conjugated diene) block and having a monovinyl aromatic hydrocarbon content in the range of from 10 to 60% by weight, preferably 10 to 35% by weight, based on total weight of block copolymer;(b) 100 to 200 and preferably from 100 to 150, parts by weight of a plasticiser;(c) 50 to 100, preferably 70 to 90, parts by weight of a resin, which is compatible with the substantially hydrogenated poly(conjugated diene) block; and optionally(d) a dusting agent in amount of from 0 to 10% by weight and preferably 0.5 to 3% by weight, based on total weight of composition;process for its preparation and flexible elastic sterilisable homogeneous layers derived from it.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: January 11, 2000
    Assignee: Shell Oil Company
    Inventors: Catherine Augusta Louis Maris, Olivier Roumache
  • Patent number: 5985979
    Abstract: This invention is a process for producing stable polymer emulsions and latexes. The polymers are block copolymers of conjugated dienes and vinyl aromatic hydrocarbons. The process comprises making a solution of the polymer, adding another block copolymer as a stabilizing agent, emulsifying the polymer solution by mixing it with an aqueous phase and removing the solvent, cosolvent and excess water. The stabilizing block polymer contains an acrylic block in addition to at least one vinyl aromatic hydrocarbon and/or a conjugated diene block.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: November 16, 1999
    Assignee: Shell Oil Company
    Inventors: Jeffrey George Southwick, David Michael Austgen, Jr.
  • Patent number: 5962077
    Abstract: A crosslinkable composition for coating primed and unprimed substrates comprising from 10 to 80 percent by weight of a hydroxy functional polydiene polymer having a functionality of at least 1.3, 8 to 60 percent by weight of an amino resin crosslinking agent, and 2 to 40 percent by weight of a reinforcing agent. The invention also encompasses a process to make such compositions by partially reacting the three components for 0.5 to 10 hours at 60 to 120.degree. C., optionally in the presence of a small amount of catalyst, to give phase stable compositions and subsequently completely crosslinking the composition by baking the composition on a substrate.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: October 5, 1999
    Assignee: Shell Oil Company
    Inventor: David John St. Clair
  • Patent number: 5955559
    Abstract: Cast polyurethanes are preferably formed from a hydrogenated polydiene diol having from up to 2 terminal hydroxyl groups per molecule and a number average molecular weight between 1000 and 20,000, an isocyanate having two or more isocyanate groups per molecule. This composition is then reacted with an amine curing agent at 80 to 130.degree. C. to form a cast elastomer with excellent hydrolytic stability. The amine curing agent must be a hindered aromatic amine crosslinker with low polarity and a solubility parameter of less than 10.5.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: September 21, 1999
    Assignee: Shell Oil Company
    Inventors: Dale Lee Handlin, Jr., Steven Soohyun Chin, Aisa Sendijarevic, Vahid Sendijarevic, Kurt C. Frisch
  • Patent number: 5952430
    Abstract: This invention is a process for the selective hydrogenation of block copolymers having at least one poly(vinyl aromatic) block and at least one poly(conjugated diene) block which comprises contacting the block copolymers with hydrogen in the presence of a hydrogenation catalyst composition which comprises:a) a metal compound cation of the formula ?(A)(E)M(R.sub.4)!.sup.+ wherein M represents titanium, zirconium, or hafnium, A and E each represent ligands with structure I or II ##STR1## in which R.sub.1 independently represents the same or different hydrocarbyl groups optionally containing heteroatoms, and R.sub.3 independently represents the same or different hydrocarbonyl groups optionally containing heteroatoms, or a halide, and in which R.sub.1 and R.sub.3 may be shared between A and E to provide a bridge, wherein m is an integer from 0-5, p is an integer from 0-4, and q is an integer from 0-3, wherein R.sub.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: September 14, 1999
    Assignee: Shell Oil Company
    Inventors: Harry Van Der Heijden, Bart Hessen
  • Patent number: 5948527
    Abstract: Hot melt adhesive compositions, comprising(a) a radial multiarmed block copolymer (AB).sub.n X, wherein A is a block predominantly derived from a monovinylaromatic compound, B is a block predominantly derived from butadiene and which optionally has been partially or completely hydrogenated,X is the residue of a multifunctional coupling agent,n is in the range of from 3 to 6,(b) a linear block copolymer AB, the components (a)+(b) being present in an amount of 100 parts by weight,(c) a tackifying resin, which is compatible with the blocks B, in an amount of from 100 to 500 parts by weight,(d) a plasticizer in an amount of from 100 to 300 parts by weight,(e) an antioxidant-UV stabiliser in an amount from 0.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: September 7, 1999
    Assignee: Shell Oil Company
    Inventors: Eric-Jack Gerard, Noel Raymond Maurice De Keyzer, Birgitte Maria Ludovica Christine Van De Vliet
  • Patent number: RE36757
    Abstract: The present invention encompasses nontapered block copolymers of the following structure and adhesives containing themD--A--(B--A).sub.n --D.sub.xor(D--A--B).sub.z --Ywhere A is a vinyl aromatic hydrocarbon polymer block, B and D are hydrogenated conjugated diene polymer blocks wherein if the diene is butadiene, it must have a vinyl content of at least 30 percent by weight, n is an integer from 1 to 5, x is 0 or 1, z is an integer from 2 to 30, and Y is a multifunctional coupling agent and the copolymer has a vinyl aromatic hydrocarbon content of from 9 to 35 percent by weight. The ratio of the molecular weight of D to that of B ranges in accordance with the normalized molecular weight factor which may range from greater than 0 up to 180.times.10.sup.-6.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: June 27, 2000
    Assignee: Shell Oil Company
    Inventor: Glenn Roy Himes
  • Patent number: H1862
    Abstract: The present invention provides high service temperature sealant and adhesive compositions which contain a functionalized selectively hydrogenated block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene to which has been grafted at least 4% by weight of an acid compound or its derivative wherein substantially all of the acid compound or its derivative is grafted to the block copolymer in the conjugated diene blocks. The present invention also contemplates a stable emulsion comprising the above polymer, water and less than 1 part per 100 of the emulsion of a surfactant.
    Type: Grant
    Filed: June 21, 1994
    Date of Patent: September 5, 2000
    Assignee: Shell Oil Company
    Inventors: Glenn Roy Himes, Jeffrey George Southwick, David Michael Austgen, Jr.
  • Patent number: H1902
    Abstract: The invention described herein is an asymmetric radial block copolymer having at least one set of arms formed of at least one polymer block of at least one vinyl aromatic hydrocarbon and/or at least one polymer block formed of at least one conjugated diene and at least one set of arms formed of at least one polymer block of at least one acrylic monomer.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: October 3, 2000
    Assignee: Shell Oil Company
    Inventors: Ronald James Hoxmeier, Bridget Ann Spence