Patents Represented by Attorney Arnold S. Weintraub

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  • Silicate fouling control during dihydric alcohol distillation
    Patent number: 4200501
    Abstract: Silicate fouling on the reboilers and trays and the distillation train used for the production of dihydric alcohols is arrested by the addition of caustic to the feed stream.
    Type: Grant
    Filed: March 24, 1978
    Date of Patent: April 29, 1980
    Assignee: BASF Wyandotte Corporation
    Inventors: Edward J. Panek, Werner O. Moll, Lee H. Bergman, Siegfried P. Kersten
  • Cellular products based on halocarboxylic acid-modified polyisocyanates
    Patent number: 4197374
    Abstract: Stable, liquid polyisocyanate compositions are prepared by reacting a polyisocyanate or a mixture of polyisocyanates and halogen-containing carboxylic acids. The polyisocyanates hereof are used to prepare polyurethanes, polyisocyanurates, poly(isocyanurate-urethane) and the like. These isocyanates can be used in foam formation, films, fibers, coating solutions, elastomers and the like.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: April 8, 1980
    Assignee: BASF Wyandotte Corporation
    Inventors: Thirumurti Narayan, Harald P. Wulff
  • Process for preparing polyalkylene polyamine polyethers
    Patent number: 4191820
    Abstract: Non-gelled polyalkylenepolyamine polyethers are prepared by the reaction of ethylenediamine and polyepichlorohydrin in the presence of an organic solvent. The solvent enables the reactants to be present at less than a 3:1 ratio of polyamine per chlorine atom.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: March 4, 1980
    Assignee: BASF Wyandotte Corporation
    Inventor: William K. Langdon
  • Amine-coupled polyepichlorohydrin and polyamines derived therefrom
    Patent number: 4178434
    Abstract: Highly functional, substantially linear, polyamines are prepared by reacting a primary amine with an epihalohydrin oligomer or a mixture of an epihalohydrin oligomer and a halohydrin-terminated derivative of a polyol. Displacement of the haloalkyl halogen groups of the polyamine with amine groups provides highly functional amine intermediates which are useful in the preparation of drainage aids and the like.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: December 11, 1979
    Assignee: BASF Wyandotte Corporation
    Inventor: William K. Langdon
  • Method of forming diaphragms from discrete thermoplastic fibers requiring no bonding or cementing
    Patent number: 4138314
    Abstract: Diaphragms for electrolytic cells are prepared by depositing onto a cathode screen, discrete thermoplastic fibers. The fibers are highly branched, and which, when deposited form an entanglement or network thereof, which does not require bonding or cementing.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: February 6, 1979
    Assignee: BASF Wyandotte Corporation
    Inventors: Arvind S. Patil, Eugene Y. Weissman
  • Display rack
    Patent number: 4103778
    Abstract: A display rack for bolts of fabric and the like includes a plurality of freely rotatable display arms mounted on an elongated support member. In a prefered embodiment of the invention, two tiers of display arms are disposed.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: August 1, 1978
    Inventor: Gary W. Bradshaw
  • Console for underwater diving meters
    Patent number: D247957
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: May 23, 1978
    Inventor: Ronald J. Adams
  • Transceiver
    Patent number: D250712
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: January 2, 1979
    Inventor: Lawrence L. Yanitz
  • Ski boot attachment
    Patent number: D250796
    Type: Grant
    Filed: October 13, 1976
    Date of Patent: January 16, 1979
    Inventor: Michael D. DeFever
  • Reeled garbage bag holder
    Patent number: D250799
    Type: Grant
    Filed: January 6, 1977
    Date of Patent: January 16, 1979
    Inventor: James A. Schad
  • Transceiver
    Patent number: D250815
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: January 16, 1979
    Inventor: Lawrence L. Yanitz
  • Ordnance vehicle
    Patent number: D251289
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: March 13, 1979
    Inventor: Gerald M. Larson
  • Necklace
    Patent number: D252195
    Type: Grant
    Filed: December 16, 1976
    Date of Patent: June 26, 1979
    Inventor: Herman S. Keys
  • Toy vehicle
    Patent number: D252415
    Type: Grant
    Filed: August 24, 1976
    Date of Patent: July 17, 1979
    Inventor: Jerry L. Ellis
  • Barbeque
    Patent number: D252788
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: September 4, 1979
    Inventor: Donald L. Talbert
  • Tie-down bracket
    Patent number: D253164
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: October 16, 1979
    Inventor: Charles E. Ingram
  • Strap retainer
    Patent number: D253320
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: November 6, 1979
    Inventor: Ronald J. Adams
  • Telephone for vehicles
    Patent number: D254066
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: January 29, 1980
    Inventor: Russell H. Kohlman
  • Underwater console attaching slate board
    Patent number: D254093
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: January 29, 1980
    Inventor: Ronald J. Adams
  • Cartridge record phonograph
    Patent number: D254785
    Type: Grant
    Filed: May 6, 1977
    Date of Patent: April 22, 1980
    Assignee: Yugen Kaisha Watanabe Kenkyusho
    Inventor: Katsumi Watanabe