Patents Represented by Attorney, Agent or Law Firm Donald F. Haas
  • Patent number: 5948863
    Abstract: A pressure structural or sealant composition comprises (a) from 15 to 95% by weight of a telechelic polymer such as a glycidyl ether-functional telechelic polymer and from 5 to 85% by weight of a heterotelechelic polydiene block polymer wherein at least one of the functonalities is the same as the functionality of the telechelic polymer, such as a heterotelechelic polydiene block polymer with glycidyl ether and another functionality such as olefinic unsaturation or epoxidized olefin; and (b) a dual curing system wherein one curing agent cures the teolechelic polymer and the common functionality on the heterotelechelic polydiene block polymer such as an aliphatic polyamine, and the other curing agent cures the other functionality on the heterotelechelic polydiene block polymer but does not cure under conditions required to cure the telechelic polymer, such as a sulfur-based curing agent when the functionality is olefinic unsaturation or an amino resin when the functionality is epoxidized olefin.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: September 7, 1999
    Assignee: Shell Oil Company
    Inventors: David John St. Clair, James Robert Erickson
  • Patent number: 5939474
    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 at least 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 in the range of from 1 to 3% w, both based on total mixture; and bitumen compositions obtainable by such process.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: August 17, 1999
    Assignee: Shell Oil Company
    Inventors: Gerrit Van Gooswilligen, Michael Christopher Phillips, Koen Steernberg
  • Patent number: 5932656
    Abstract: A process for curing epoxidized diene polymers for use in adhesives, sealants, and coatings which comprises contacting the polymer with an aromatic anhydride curing agent at an epoxy/anhydride molar ratio from 0.5/1 to 2.0/1.0, optionally, and from 0.1 to 10 phr of an accelerator at a temperature of from 100 to for a period of 10 minutes to six hours.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: August 3, 1999
    Assignee: Shell Oil Company
    Inventor: Michael Alan Masse
  • Patent number: 5932648
    Abstract: A low viscosity, low VOC content fumigation adhesive formulation which is comprised ofa) 100 parts by weight (pbw) of a blend of a styrene-diene triblock copolymer, hydrogenated or unhydrogenated, having a weight average molecular weight of 30,000 to 200,000 and a polystyrene content of from 10 to 40% by weight of the polymer, and a styrene-diene diblock copolymer having a weight average molecular weight of 10,000 to 40,000 and a polystyrene content of from 10 to 40% by weight of the polymer, wherein the diblock comprises from 60 to 95% by weight of the polymer blend,b) 75 to 275 parts by weight (pbw) of a tackifying resin which is compatible with the diene blocks, andc) 50 to 200 parts by weight (pbw) of a solvent for the polymer.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: August 3, 1999
    Assignees: Shell Oil Company, AC Products
    Inventors: James Louis Troska, Larry McArthur Kegley, William Brian Dances
  • Patent number: 5929167
    Abstract: The present invention relates to a pressure sensitive adhesive composition comprising a thermoplastic polyurethane and a tackifying resin, which thermoplastic polyurethane is derived from an aromatic diisocyanate and/or a cycloaliphatic diisocyanate, a chain extender, and a polymeric diol and/or a hydrogenated polydiene diol and a hydrogenated polydiene mono-ol, and wherein the number average functionality of the diol and mono-ol ranges from 1.2 to 1.8. Further, the invention relates to a thermoplastic polyurethane for use in pressure sensitive adhesives and to articles containing the pressure sensitive adhesives.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: July 27, 1999
    Assignee: Shell Oil Company
    Inventors: Eric-Jack Gerard, Xavier Muyldermans
  • Patent number: 5925724
    Abstract: Thermoplastic polyurethanes are formed from a polydiene diol, preferably a hydrogenated polybutadiene diol, having from 1.6 to 2 terminal hydroxyl groups per molecule and a number average molecular weight between 500 and 20,000, an isocyanate having two isocyanate groups per molecule, and optionally a chain extender having two hydroxyl groups per molecule. The thermoplastic polyurethane composition is prepared by a prepolymer method. preferably a solventless prepolymer method using the branched chain extender.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: July 20, 1999
    Assignee: Shell Oil Company
    Inventors: Jozef Lucien Rudolf Cenens, Hector Hernandez
  • Patent number: 5925717
    Abstract: The invention provides a catalyst composition for hydrogenation of polymers containing ethylenical unsaturation which comprises at least:(a) a titanium compound of the formula ##STR1## (I) wherein A.sub.1 represents an optionally substituted indenyl group of the formula ##STR2## wherein substituents R.sub.1 and R.sub.2 may be the same or different and each may be selected from halogen, phenyl which optionally may bear one or more the same or different substituents, lower alkyl, alkoxy, phenoxy, phenylalkoxy, benzyl, and a bulky substituent containing one or more hetero atoms such as tri (loweralkyl)silyl, --NPh.sub.2, --NHPh, --BPh.sub.2, and --B(OPh).sub.2, wherein n may be an integer of from 0 to 4 and m may be an integer of from 0 to 3,(II)wherein A.sub.2 has the same meaning as A.sub.1 or alternatively represents an optionally substituted cyclopentadienyl group, and wherein L.sub.1 and L.sub.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: July 20, 1999
    Assignee: Shell Oil Company
    Inventors: Eric Johannes Maria De Boer, Bart Hessen, Adriaan Albert Van Der Huizen, Wouter De Jong, Adrianus Johannes Van Der Linden, Bart Johan Ruisch, Lodewijk Schoon, Heleen Johanna Augusta De Smet, Frederik Hendrik Van Der Steen, Hubertus Cornelis Thomas Lucianes Van Strien, Alan Villena, Judith Johanna Berendina Walhof
  • Patent number: 5925707
    Abstract: This invention provides oil gel compositions which comprise a hydrogenated styrene-butadiene-styrene (SEBS) block copolymer (although other vinyl aromatic hydrocarbons may be used) which has an overall weight average molecular weight of from 30,000 to 300,000, a styrene block weight average molecular weight of from 4000 to 35,000, and a vinyl content of at least 45% by weight (% wt), preferably 45 to 90%, and an oil and, optionally, a polyolefin wax and/or an extender liquid. For every 100 parts by weight of copolymer, there should be at least 900 parts of oil or a mixture of oil and polyolefin wax and/or an extender liquid.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: July 20, 1999
    Assignee: Shell Oil Company
    Inventors: David Lee Shafer, Glenn Roy Himes, Michael John Modic
  • Patent number: 5922467
    Abstract: This invention provides a method for painting a substrate which comprises:(a) priming the substrate with a primer selected from the group consisting of epoxy resin primers and polyester resin primers,(b) applying to the primed substrate a crosslinkable basecoat composition comprising from 10 to 90 percent by weight of an epoxidized monohydroxylated polydiene polymer, from 8 to 60 percent by weight of an amino resin crosslinking agent, and from 2 to 40 percent by weight of a reinforcing agent, and(c) applying over the basecoat a clearcoat selected from the group consisting of epoxidized monohydroxylated polydiene-based clearcoats, polyester clearcoats, and acrylic clearcoats.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: July 13, 1999
    Assignee: Shell Oil Company
    Inventor: David John St. Clair
  • Patent number: 5916941
    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: June 29, 1999
    Assignee: Shell Oil Company
    Inventor: David John St. Clair
  • Patent number: 5910542
    Abstract: Pressure sensitive structural adhesive and sealant compositions comprising: (a) a polymer system comprising from 95 to 15 percent by weight of a telechelic polymer and from 5 to 85 percent by weight of a heterotelechelic polymer wherein at least one of the functionalities thereon is the same as the functionality on the telechelic polymer, and (b) a dual curing system wherein one element of the curing system cures the telechelic polymer and the common functionality on the heterotelechelic polymer and the other element cures the functionality on the heterotelechelic polymer but does not cure under the conditions required to cure the telechelic polymer to form a structural adhesive or sealant composition. In a preferred embodiment, the polymer system is comprised of a hydroxyl functional telechelic diol or polyol polymer and the heterotelechelic polymer is a monohydroxylated polydiene polymer which also has epoxidized olefin functionality.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: June 8, 1999
    Assignee: Shell Oil Company
    Inventors: David John St. Clair, James Robert Erickson
  • Patent number: 5910541
    Abstract: A pressure sensitive structural or sealant composition comprises (a) from 15 to 95% by weight of a telechelic polymer such as a hydroxyl-functional telechelic polymer and from 5 to 85% by weight of a heterotelechelic polydiene block polymer wherein at least one of the functionalities is the same as the functionality of the telechelic polymer, such as a heterotelechelic polydiene block polymer with hydroxyl and glycidyl ether funciontialities, and (b) a dual curing system wherein one curing agent cures the teolechelic polymer and the common functionality on the heterotelechelic polydiene block polymer such as a polyisocyanate, and the other curing agent cures the other functionality on the heterotelechelic polydiene block polymer at higher temperatures but does not cure under conditions required to cure the telechelic polymer, such as a polycarboxylic acid, polycarboxylic acid anhydride or a catalyst.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: June 8, 1999
    Assignee: Shell Oil Company
    Inventors: David John St. Clair, James Robert Erickson
  • Patent number: 5891957
    Abstract: A pressure sensitive adhesive composition for skin adhesion and bandage applications which comprises (a) 100 parts by weight of a styrene-isoprene-styrene triblock or multiarm copolymer which has a coupling efficiency of 20 to 50%, an overall absolute arm molecular weight of 33,000 to 100,000, a polystyrene content of 18 to 30%, and a polystyrene block weight average molecular weight of 11,000 to 20,000, and (b) from 100 to 400 parts by weight of a styrene-isoprene diblock copolymer which has an overall absolute molecular weight of 20,000 to 40,000, a polystyrene content of 10 to 25%, and a polystyrene block weight average molecular weight of 4000 to 7000.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: April 6, 1999
    Assignee: Shell Oil Company
    Inventors: David Romme Hansen, Ralf Korpman
  • Patent number: 5888289
    Abstract: The present invention provides a bitumen composition comprising a bitumen component, a thermoplastic rubber in an amount of less than 8 % wt, and an ethylene-vinyl acetate copolymer in an amount of less than 5 % wt, both based on total bitumen composition, wherein the ethylene-vinyl acetate copolymer has a vinyl content in the range of from 20 to 35% wt, based on copolymer; a process for preparing such bitumen composition; and the use of such bitumen compositions in asphalt mixtures for road applications.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: March 30, 1999
    Assignee: Shell Oil Company
    Inventors: Henricus Engelbertus Johannes Hendriks, Koen Steernberg, Teunis Terlouw, Willem Cornelius Vonk
  • Patent number: 5874484
    Abstract: The present invention relates to a mixture of polyols for use in the preparation of polyurethane foam comprising:(i) 80-99% by weight of at least one polyether polyol and/or at least one polyester polyol; and(ii) 1-20% by weight of at least one polyolefin polyol.The invention further relates to a process for preparing polyurethane foams, using the said mixture of polyols; to polyurethane foams obtainable by such process; and to articles and composites containing the said polyurethane foams.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: February 23, 1999
    Assignee: Shell Oil Company
    Inventors: Veerle Maria Rafaela Dirckx, Eric-Jack Gerard, Hans Ferdinand Vermeire
  • Patent number: 5863978
    Abstract: Improved polyvinylchloride-free compositions useful for wall and floor coverings comprise an optionally functionalized, ethylenically unsaturated block copolymer of monoalkenyl aromatic hydrocarbon and conjugated alkadiene, or selectively hydrogenated derivative thereof, an ethylene polymer, functionalized polyalkylene, polyisobutylene and particulate filler.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: January 26, 1999
    Assignee: Shell Oil Company
    Inventor: Philippe Vosters
  • Patent number: 5864001
    Abstract: The present invention is polyurethane compositions comprising from 1 to 80% by weight of a polydiene diol having from 1.6 to 2, more preferably 1.8 to 2, and most preferably 1.9 to 2, terminal hydroxyl groups per molecule and a number average molecular weight between 500 and 20,000, more preferably between 1,000 and 10,000, from 20 to 99% by weight of a hard segment comprised of an isocyanate having two isocyanates groups per molecule and dimer diol as a chain extender. The polyurethane compositions described herein are stronger than other polydiene diol-based polyurethane compositions.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: January 26, 1999
    Assignee: Shell Oil Company
    Inventors: Michael Alan Masse, Dale Lee Handlin, Jr.
  • Patent number: 5863971
    Abstract: The present invention provides a process for preparing a bitumen composition which comprises mixing at an elevated temperature an oxidised bitumen having a penetration index of at least 0 with a thermoplastic rubber which is present in an amount of less than 5% wt., based on total bitumen composition; bitumen compositions obtainable by such process; and the use of such bitumen compositions in asphalt mixtures for road applications.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: January 26, 1999
    Assignee: Shell Oil Company
    Inventors: Rudolf Baanders, Gerrit Van Gooswilligen, Koen Steernberg
  • Patent number: 5854314
    Abstract: A crosslinkable waterborne dispersion of a hydroxy functional polydiene polymer composition which comprises: (a) 10 to 65% w of a hydroxy functional polydiene polymer, (b) 0.2 to 25% w of a compatible amino resin, (c) 0.1 to 10% w of a surfactant which is nonionic or anionic and has a volatile cation, and (d) the balance water. The invention also describes a water-continuous process and an inversion processes for making such dispersions.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: December 29, 1998
    Assignee: Shell Oil Company
    Inventors: David John St. Clair, James Robert Erickson
  • Patent number: 5854335
    Abstract: A bituminous composition which comprises a bituminous component and a block copolymer of a conjugated diene and a monovinylaromatic hydrocarbon, wherein the block copolymer has a vinyl content of at least 25% by weight based on the total diene content and a diblock content of 25 wt % or less, whereas the diblock has an apparent molecular weight which is in the range of from 100,000 to 170,000, is of use particularly in roofing applications.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: December 29, 1998
    Assignee: Shell Oil Company
    Inventors: Gerardus Wilhelmus Jozef Heimerikx, Aloysius Josephus Atoius Maria Van Hoek, Cornelis Petrus Valkering, Jeroen Van Westrenen