Patents Represented by Attorney R. E. Nanfeldt
  • Patent number: 5156758
    Abstract: A terpolymer having the formula: ##STR1## wherein n=0 to 12; x is about 15 to about 75 mole percent; y is about 25 to about 85 mole percent; z is about 0.1 to about 10 mole percent; R.sub.1 and R.sub.3 equal to H, C.sub.1 -C.sub.10 alkyl, alkyl amino, alkylpolyamino, alkyl amino ether, alkyl amino alcohol groups and R.sub.2 is an alkyl group having about 1 to about 8 carbon atoms.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: October 20, 1992
    Assignee: Exxon Research and Engineering Company
    Inventors: Warren A. Thaler, Joseph Wegensommer, Darrell W. Brownawell, Donald N. Schulz, John B. Gardiner
  • Patent number: 5153289
    Abstract: A water soluble copolymer having the structure: ##STR1## wherein X is about 1 to about 99 mole percent and y is about 99 to about 1 mole percent.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: October 6, 1992
    Assignee: Exxon Research and Engineering Company
    Inventors: Donald N. Schulz, Kissho Kitano
  • Patent number: 5096603
    Abstract: A water soluble polymer which is characterized by the formula: ##STR1## wherein x is 50 mole percent or 662/3 mole percent or 75 mole percent and y+z is 50 mole percent, when x is 50 mole percent, y+z is 331/3 mole percent, when x is 662/3 mole percent, and y+z is 25 mole percent, when x is 75 mole percent, wherein the molar ratio of y to z is about 100:1 to 1:100, and M.sup.+ is hydrogen or a metal cation selected from the group consisting of lead, aluminum, iron and Groups IA, IIA, IB and IIB of the Periodic Table of Elements and the level of sulfonation based upon the styrene monomer is about 75 to about 100 mole percent, and R is an alkyl group having about 6 to about 22 carbon atoms.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: March 17, 1992
    Assignee: Exxon Research and Engineering Company
    Inventors: Dennis G. Peiffer, Jan Bock, Julie Elward-Berry
  • Patent number: 5066694
    Abstract: This invention relates to a pressure sensitive adhesive compositions which include an emulsion of a metal neutralized sulfonated copolymer of isoprene/sodium styrene sulfonate, wherein the neutralized sulfonated copolymer has about 5 to about 250 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated copolymer, and less than about 50 parts by weight of an emulsion of a preferential polar plasticizer, and less than about 300 parts by weight of an emulsion of a hydrocarbon tackifying resin of a petroleum or coal tar distillate, having about 4 to 12 carbon atoms, wherein the hydrocarbon resin is composed of aliphatic dienes and monoolefins per 100 parts by weight of the neutralized sulfonated copolymer.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: November 19, 1991
    Assignee: Exxon Research and Engineering Company
    Inventors: Pawan K. Agarwal, Thomas Pugel
  • Patent number: 5057564
    Abstract: The present invention relates to novel polymers which are adducts of an unsaturated hydrocarbon, wherein the novel polymers are produced by contacting cyclic carbonyl monomers with an unsaturated hydrocarbon to form novel cyclic carbonyl polymers having an Mn of about 500 to about 10.sup.7.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: October 15, 1991
    Assignee: Exxon Research and Engineering Company
    Inventor: Stanley J. Brois
  • Patent number: 4988377
    Abstract: A composite comprising a substrate and an elastomeric coating adhered to at least one surface of said substrate, said elastomeric coating having a thickness of about 1 to about 100 micrometers, wherein said elastomeric coating comprises a neutralized sulfonated polymer having a sulfonate content of about 4 to about 200 meq. per 100 grams of said neutralized sulfonated polymer.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: January 29, 1991
    Assignee: Exxon Research and Engineering Company
    Inventors: Pacifico V. Manalastas, Warren A. Thaler, Evelyn N. Drake, Israel S. Pasternak
  • Patent number: 4853447
    Abstract: A homogeneous free radical copolymerization process for the formation of a copolymer of acrylamide and an cationic monomer derive from allyl halide and N,N-dimethyl alkylamines which comprises the steps of:(a) forming a mixture of acrylamide monomer and the cationic monomer derive from allyl halide and N,N-dimethyl alkylamines and under a nitrogen atmosphere;(b) adding deoxygenated water to said mixture to form a homogeneous reaction solution;(c) adding a free radical initiator to said homogeneous reaction solution to initiate polymerization of said acrylamide monomer and said cationic monomer derived from allyl halide and N,N-dimethylalkylamines; and(d) copolymerizing said acrylamide monomer and said cationic monomer derive from said allyl halide and said N,N-dimethyl alkylamines at a sufficient temperature and for a sufficient period of time to form said copolymer of acrylamide without the formation of substantial amounts of particulates or phase separation occurring, said copolymer having an intrinsic visc
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: August 1, 1989
    Assignee: Exxon Research and Engineering Company
    Inventor: Dennis G. Peiffer
  • Patent number: 4184988
    Abstract: An improved process for the sulfonation of an unsaturated elastomeric polymer to form a sulfonated elastomeric polymer, wherein a cement which contains an elastomeric polymer dissolved in a nonreactive solvent is contacted with a sulfonating agent at between about -100.degree. C. and +100.degree. C. for a period of time sufficient to result in sulfonation of the elastomeric polymer wherein the improvement includes the use of a sulfonating agent which is formed from mixtures of acyl sulfate ##STR1## with carboxylic acid anhydrides ##STR2## with carboxylic acid halides ##STR3## or with both, wherein R is selected from the group consisting of CH.sub.3 --, C.sub.2 H.sub.5 --, C.sub.3 H.sub.7 --, C.sub.4 H.sub.9 --, C.sub.5 H.sub.11, C.sub.6 H.sub.13 or C.sub.6 H.sub.5 and mixtures thereof. The molar ratio of ##STR4## is at least one.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: January 22, 1980
    Assignee: Exxon Research & Engineering Co.
    Inventors: Henry S. Makowski, Robert D. Lundberg, Jan Bock
  • Patent number: 4158653
    Abstract: This invention relates to heterogeneous elastomeric blends having improved rheological properties of a major portion of a neutralized sulfonated elastomeric polymer with a minor portion of a polystyrene thermoplastic resin or a neutralized sulfonated polystyrene resin and mixtures thereof. Both the sulfonated elastomeric polymer and the sulfonated thermoplastic resin have about 0.2 to about 10.0 mole percent of SO.sub.3 H groups, at least 90% of which are neutralized with an organic amine.
    Type: Grant
    Filed: April 26, 1977
    Date of Patent: June 19, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventor: Chan I. Chung
  • Patent number: 4148756
    Abstract: A new improved catalyst system for polymeric polymerizations, includes at least one metal alkyl compound having the formula R.sub.n MR'.sub.3-n in combination with a Group IVB-VIII transition metal compound on a support and at least one Lewis base wherein R is selected from the group consisting of C.sub.3 to C.sub.20 secondary or tertiary alkyl, cycloalkyl, alkenyl or aralkyl groups, or ##STR1## wherein R" is a methyl or ethyl group and R"' is a C.sub.1 to C.sub.10 alkyl group; R' is selected from the group consisting of C.sub.1 to C.sub.20 primary alkyl, alkenyl or aralkyl groups, or a hydride, M is selected from the group consisting of aluminum, gallium, or indium; and n = 1-3. The improved catalyst system provides polymers having increased isotactic stereoregularity as well as lower catalyst residue.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: April 10, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventor: Arthur W. Langer, Jr.
  • Patent number: 4146692
    Abstract: In a process for producing substantially gel free elastomers of isobutylene and a conjugated diene selected from the group consisting of cyclopentadiene, methylcyclopentadiene, isoprene or piperylene and mixtures thereof, improved products, higher catalyst efficiency, high cement concentrations and improved monomer conversions are obtained by the use of staged, or multiple reactors whereby the monomers and/or catalyst feeds may be divided among the reaction zones. The process provides elastomers which are substantially gel free having controlled molecular weight distribution (polydispersity) and high molecular weights at about 8 to about 45 mole % unsaturation.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: March 27, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventors: Joseph Wagensommer, Pacifico V. Manalastas
  • Patent number: 4145379
    Abstract: The present invention relates to a process for improving the melt processability and properties of metal neutralized sulfonated polymers by the use of a reactive plasticizer wherein the plasticizer improves the flow of the ionic polymer during processing, and subsequently is polymerized by a free radical process into a thermoset polymer. The resultant composition is an intimate blend of ionic polymer with a thermoset polymer, wherein the resultant composition has improved properties.
    Type: Grant
    Filed: November 29, 1977
    Date of Patent: March 20, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventors: Robert D. Lundberg, Henry S. Makowski, Jan Bock
  • Patent number: 4145313
    Abstract: A new improved catalyst system for alpha-olefin type polymerizations, includes at least one metal alkyl compound having the formula R.sub.n MR'.sub.3-n in combination with a Group IVB-VIII transition metal compound on a support and at least one Lewis base wherein R is selected from the group consisting of C.sub.3 to C.sub.20 secondary or tertiary alkyl, cycloalkyl, alkenyl or aralkyl groups; R' is selected from the group consisting of C.sub.1 to C.sub.20 primary alkyl, alkenyl or aralkyl groups, or a hydride, M is selected from the group consisting of aluminum, gallium, or indium; and n = 1-3. The improved catalyst system provides polymers having increased isotactic stereo-regularity as well as lower catalyst residue.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: March 20, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventor: Arthur W. Langer, Jr.
  • Patent number: 4118361
    Abstract: The instant invention relates to a process for controlling the viscosity of organic liquids by incorporating in said liquid a minor amount of an ionic polymer, and a cosolvent for the ionic groups of said polymer. The ionic polymer comprises a backbone which is substantially soluble in said organic liquid, and pendant ionic groups which are substantially insoluble in said organic liquid. A cosolvent is selected which will solubilize the pendant ionomeric groups and provide a reasonably homogeneous mixture of solvent, cosolvent and ionomeric polymer. The preferred compositions prepared by the method of the instant invention comprise an organic liquid having a solubility parameter of from 6 to 10.5 in combination with a sulfonated polymer containing from 0.2 up to 10.0 mole % ionic groups which has been neutralized by a basic material selected from Groups IA and IIA, IB and IIB of the Periodic Table of the Elements (and also lead, tin and antimony) and a nonvolatile alcohol or amine cosolvent.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: October 3, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventor: Robert D. Lundberg
  • Patent number: 4117084
    Abstract: A process for producing UO.sub.2 F.sub.2 from a soluble uranyl salt. The uranyl salt is combined with a soluble fluoride salt in a solvent to form a reaction solution. The solvent exhibits Lewis base characteristics. The reaction product is a crystalline solid which is separated from the reaction solution. The UO.sub.2 F.sub.2 may then be obtained from the crystalline solid.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: September 26, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventor: Edward T. Maas, Jr.
  • Patent number: 4053548
    Abstract: A process for fabricating a plastic, which plastic is either a thermoplastic ionomer or a multiphase graft or block copolymer of the ABA, ##STR1## or (AB).sub.n wherein n is greater than 1 and wherein the polymer blocks (A and B) are thermoplastic, incompatible with one another, and have different softening points, both softening points being substantially above room temperature when using the latter class of polymers. The material is first heated to a temperature above both softening points and formed into any desired shape, then cooled and re-formed into a new desired shape at a temperature between that of the softening points of the two blocks and finally cooled to a temperature below both softening points thereby retaining the shape last achieved. When using thermoplastic ionomers the process is similar. The material is heated above the softening point of the thermoplastic backbone and plasticizers are employed to disrupt the ionic domains.
    Type: Grant
    Filed: November 17, 1971
    Date of Patent: October 11, 1977
    Assignee: Exxon Research & Engineering Co.
    Inventors: Robert D. Lundberg, Henry S. Makowski
  • Patent number: 4031300
    Abstract: Substantially gel-free, high molecular weight, high unsaturation copolymers of isobutylene and cyclopentadiene having a number average molecular weight of at least 90,000 and a mole percent of unsaturation of at least 5% and the process for preparing said polymers which comprises carrying out the polymerization in a homogeneous phase, introducing to the system either an aluminum halide in a soluble form or a hydrocarbylaluminum dihalide and carrying the reaction out at a temperature of less than about -100.degree. C.
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: June 21, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: Warren A. Thaler, Donald J. Buckley, Joseph P. Kennedy
  • Patent number: 4014847
    Abstract: Ionically crosslinked polymers are plasticized by blending the ionic compositions with a plasticizer which is normally liquid and non-volatile, the plasticizer compounds having a solubility parameter of at least 9.0. The plasticizers are preferential plasticizers for their ionic domains and do not ordinarily plasticize the polymeric backbone.
    Type: Grant
    Filed: July 11, 1974
    Date of Patent: March 29, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: Robert D. Lundberg, Henry S. Makowski, Lowell Westerman
  • Patent number: 4014831
    Abstract: The instant invention relates to a method for making processable ionic polymer compositions which are characterized as being processable at high temperatures, for example, 200.degree. C, while retaining adequate physical properties at both room temperatures and elevated temperatures which are below the processing temperature, for example, up to 100.degree. C and more. In this method, an ionic polymer comprising an elastomeric or plastic backbone and pendant acid groups is combined with a first neutralizing agent having two components. One component of said neutralizing agent is a metal or ammonium type moiety which combines with the pendant acid groups as a metal or ammonium salt thereof; the other component of neutralizing agent takes up the hydrogen ion present in the pendant acid groups and is converted into a preferential plasticizer for said ionomer.
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: March 29, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: Jan Bock, Neville G. Thame, Lowell Westerman