Patents Assigned to ARCO Chemical Technology, L.P.
  • Direct epoxidation process using a mixed catalyst system
    Patent number: 6403815
    Abstract: The liquid-phase epoxidation reaction of an olefin with hydrogen and oxygen in the presence of a catalyst mixture comprising titanium zeolite and a supported catalyst surprisingly shows higher activity toward epoxide production when the supported palladium catalyst is pre-treated with bromide, or where the reaction is performed in the presence of an alkali or alkaline earth metal bromide compound.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: June 11, 2002
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Roger A. Grey
  • Preparation of epoxy-functional resins
    Patent number: 6403714
    Abstract: A liquid epoxy-functional acrylic resin is disclosed. The resin comprises 10-90 wt % of recurring units of an epoxy-functional allylic monomer and 10-90 wt % of an acrylic monomer that has a homopolymer Tg less that 0° C. The epoxy-functional allylic monomer has the general structure: R is hydrogen, a C1-C10 aryl, or a C6-C12 aryl group; A is an oxyalkylene group; and n, which is an average number of oxyalkylene groups, is within the range of 0 to about 15.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: June 11, 2002
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Wei Wang, Daniel B. Pourreau, Shao-Hua Guo
  • Direct epoxidation process using carbonate modifiers
    Patent number: 6399794
    Abstract: The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a modifier and a catalyst comprising a noble metal and titanium zeolite. The modifier is (a) calcium carbonate in the presence of carbon dioxide or (b) ammonium bicarbonate. The process results in increased catalyst activity, selectivity to epoxide, and increased catalyst life.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: June 4, 2002
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Dan Hancu
  • Method of treating gastrointestinal disorders, particularly colitis
    Patent number: 6387952
    Abstract: Administration of alkoxylated acyl glycerine (AAG) containing lower carboxylic acid acyl moieties to mammalian subjects results in increase of lower carboxylate concentration, particularly in the colon, and may be used to treat such disorders as simple colitis, ulcerative colitis, divertive colitis, colorectal cancer, and other diseases of the gastrointestinal tract where lower carboxylates are implicated. The AAG encourage patient compliance due to substantially no odor, even when butyric acid acyl groups are employed.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: May 14, 2002
    Assignee: ARCO Chemical Technology L.P.
    Inventors: Harry Mazurek, Robert W. Harkins
  • Method for making a heterogeneous epoxidation catalyst
    Patent number: 6383966
    Abstract: Highly active and selective epoxidation catalysts are prepared by combining highsurface area silica support or the like, having surface area greater than 1100 m2/g, with a titanium source. The titanium source is a non-oxygenated hydrocarbon solution of a titanium halide or a vapor stream of titanium tetrachloride. The impregnated support is then calcined at an elevated temperature (preferably, in a substantially oxygen-free atmosphere), and, optionally, reacted with water and/or silylated. The resulting materials are highly active heterogeneous epoxidation catalysts for the reaction of olefins with organic hydroperoxides.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: May 7, 2002
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Yuan-Zhang Han, Edrick Morales, Robert G. Gastinger, Kevin M. Carroll
  • Homogeneous epoxidation catalyst
    Patent number: 6380406
    Abstract: A process for forming an olefin epoxidation catalyst is described. The process comprises reacting a tert-alkyl trihydroxysilane with a titanium complex such that the ratio of Si:Ti is 7. The catalyst is very active and selective in olefin epoxidation.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: April 30, 2002
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Kevin M. Carroll
  • Dehydrogenation of alkylene glycol ethers to ether ketones and aldehydes
    Patent number: 6376718
    Abstract: A catalytic dehydrogenation of alkylene glycol ether to ether ketone or aldehyde is disclosed. The dehydrogenation is performed with copper chromite catalyst and at least 5 wt % of water based on alkylene glycol ether. It has been found that the selectivity to formation of ether ketone or aldehyde increases with increasing the amount of water in the alkylene glycol ether.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: April 23, 2002
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Prakash Balan
  • Cobalt-catalyzed process for preparing 1,3-propanediol
    Patent number: 6376724
    Abstract: Ethylene oxide is hydroformylated to 3-hydroxypropanal using a non-phosphine-ligated cobalt catalyst and a primary or secondary amine promoter.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: April 23, 2002
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Yuan-Zhang Han
  • Selective olefin oligomerization
    Patent number: 6376731
    Abstract: A process is provided for the production of a gasoline blending fraction rich in isooctane by the dimerization of isobutylene using tertiary butyl alcohol modifier and lower alkane diluent; advantageously the isobutylene is derived from the dehydration of tertiary butyl alcohol.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: April 23, 2002
    Assignee: Arco Chemical Technology, l.p.
    Inventors: Thomas I. Evans, Lawrence J. Karas, Ramesh Rameswaran
  • Direct epoxidation process
    Patent number: 6376686
    Abstract: The invention is an olefin epoxidation process that comprises reacting olefin, oxygen, and hydrogen in a liquid medium in the presence of an epoxidation catalyst in a reactor system comprising a tank, a tube, a plurality of impellers, and means for inhibiting flow. The reactor system facilitates transfer of the hydrogen and oxygen to the liquid medium.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: April 23, 2002
    Assignee: ARCO Chemical Technology, L.P.
    Inventor: Prakash G. Balan
  • Tertiary butyl acetate recovery
    Patent number: 6375804
    Abstract: The present invention provides a distillation separation method whereby tertiary butyl acetate is separated by distillation as an overhead stream from a bottoms acetic acid stream with the proviso that water is incorporated in the system such that the bottoms acetic acid stream contains water in amount of 0.1 to 5 wt %.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: April 23, 2002
    Assignee: ARCO Chemical Technology, L.P.
    Inventor: Vijai P. Gupta
  • Cobalt-catalyzed process for preparing 1,3-propanediol
    Patent number: 6376720
    Abstract: Ethylene oxide is hydroformylated to 3-hydroxypropanal using a non-phosphine-ligated cobalt catalyst and diamine promoter.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: April 23, 2002
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Yuan-Zhang Han
  • Preparation of allylic copolymers of broad molecular weight distributions
    Patent number: 6362297
    Abstract: A process for making an allylic copolymer is disclosed. The process is a free radical copolymerization of a mono-ethylenic monomer, a multi-ethylenic monomer, and a mono-allylic monomer. The copolymer produced has a high molecular weight and a broad molecular weight distribution, and it is particularly useful as a toner resin.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: March 26, 2002
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Wei Wang
  • Preparation of allylic copolymers of broad molecular weight distributions
    Patent number: 6350842
    Abstract: A process for making an allylic copolymer is disclosed. The process is a free radical copolymerization of a mono-ethylenic monomer, a multi-ethylenic monomer, and a mono-allylic monomer. The copolymer produced has a high molecular weight and a broad molecular weight distribution, and it is particularly useful as a toner resin.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: February 26, 2002
    Assignee: ARCO Chemical Technology, L.P.
    Inventor: Wei Wang
  • Aqueous polyurethane dispersions containing phenolic resin moieties
    Patent number: 6350811
    Abstract: A water-dispersible polyurethane resin is disclosed. The resin comprises recurring units of an alkoxylated phenolic resin, a carboxylate-containing diol, and a multifunctional isocyanate. The resin, which can be neutralized, and/or chain-extended, is dispersed in water to form a polyurethane dispersion. Coatings derived from the polyurethane dispersions have excellent acid and chemical resistance.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: February 26, 2002
    Assignee: ARCO Chemical Technology, L.P.
    Inventors: Carmen L. Rodriguez, Stephen L. Goldstein
  • Preparation of allylic copolymers of broad molecular weight distributions
    Publication number: 20020016432
    Abstract: A process for making an allylic copolymer is disclosed. The process is a free radical copolymerization of a mono-ethylenic monomer, a multi-ethylenic monomer, and a mono-allylic monomer. The copolymer produced has a high molecular weight and a broad molecular weight distribution, and it is particularly useful as a toner resin.
    Type: Application
    Filed: October 3, 2001
    Publication date: February 7, 2002
    Applicant: ARCO Chemical Technology, L.P.
    Inventor: Wei Wang
  • Impurities separation by distillation
    Publication number: 20020000366
    Abstract: A distillation procedure is provided for the separation of impurities from organic materials such as glycols and glycol ethers whereby a liquid stripping component is interfaced into a distillation column with or below the organic material introduction, heat being provided by a reboiler, the stripping component and impurities being removed overhead.
    Type: Application
    Filed: August 23, 2001
    Publication date: January 3, 2002
    Applicant: ARCO CHEMICAL TECHNOLOGY, L.P.
    Inventor: Vijai P. Gupta
  • Tellurium-containing molecular sieves
    Patent number: 6329537
    Abstract: Zeolites containing silicon, titanium and tellurium oxides are prepared by a hydrothermal method which yields materials containing exceptionally high levels of catalytically active Ti species. Following calcination, the molecular sieves are active and selective catalysts for the epoxidation of olefins using hydrogen peroxide or organic hydroperoxide. The zeolites may have framework structures of varying topology, including MFI, MEL, BEA, ZSM-48, MTW or MCM-41.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: December 11, 2001
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Mahmoud K. Faraj
  • Miscible blends of epoxy-extended polyetherester resins and commercial polymer resins
    Patent number: 6323281
    Abstract: Miscible blends of epoxy-extended polyetherester resins and commercial polymer resins are disclosed. Thermosets from the resin blends offer high-performance physical properties at a reduced cost compared with that of commercial high-performance resins. The thermosets have improved physical properties, including excellent water resistance, compared with many commercial systems. Resin blends of the invention are readily thickened, and are thus useful for SMC applications.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: November 27, 2001
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Lau S. Yang, Gangfeng Cai, Jeffrey M. McFarland, Jeffrey A. Klang
  • Cobalt-catalyzed process for preparing 1,3-propanediol
    Patent number: 6323374
    Abstract: Ethylene oxide is hydroformylated to 3-hydroxypropanal using a non-phosphine-ligated cobalt catalyst and an amide promoter.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: November 27, 2001
    Assignee: Arco Chemical Technology, L.P.
    Inventor: Yuan-Zhang Han