Patents by Inventor Richard B. Wuchter

Richard B. Wuchter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5414202
    Abstract: Surfaces contaminated with chloromethylmethyl ether and bis-chloromethyl ether may be decontaminated by treating them with an aqueous solution of a basic organic amine, for example a tertiary amine, a nonionic surfactant and an alkali-metal hydroxide.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: May 9, 1995
    Assignee: Rohm and Haas Company
    Inventors: Scott A. Berger, Richard B. Wuchter, Pietro A. Stefanelli
  • Patent number: 4900796
    Abstract: An improved process for chloromethylating an aromatic material comprising introducing in a first closed container the aromatic polymeric material, catalyst for the chloromethylation reaction, and chloromethyl methyl ether in sufficient excess to insure completion of the chloromethylation reaction, and then performing the following series of steps:a. heating and stirring for sufficient time to substantially complete chloromethylation of the aromatic material,b. introducing sufficient formaldehyde, methanol, and hydrogen chloride to produce chloromethyl methyl ether in substantially the same amount as that consumed within the closed container,c. without separation of the aromatic material from the reaction mixture distilling chloromethyl methyl ether from said first closed container into a second closed container,d. removing chloromethylated aromatic product from said first closed container,e.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: February 13, 1990
    Assignee: Rohm and Haas Company
    Inventors: Scott A. Berger, Robert Stewart, Richard B. Wuchter
  • Patent number: 4145559
    Abstract: Esters of 4-substituted 2-methyleneglutaric acids are prepared by reacting an ester of acrylic acid with an ester of an .alpha.-substituted acrylic acid, such as an ester of methacrylic acid, in the presence of a tertiary organic phosphine, an organic phosphorus triamide, an organic phosphonous diamide, or an organic phosphinous amide.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: March 20, 1979
    Assignee: Rohm and Haas Company
    Inventors: Joseph W. Nemec, Richard B. Wuchter
  • Patent number: 3965070
    Abstract: Amphoteric resins are prepared by the Strecker synthesis of crosslinked vinylcarbonyl polymers. The crosslinked vinylcarbonyl polymer such as, for example, polyacrolein is reacted with an amine component such as ammonia and an inorganic cyanide to obtain after hydrolysis resins having good weak base and weak acid exchange capacities. The amphoteric nature and higher capacities make them highly suitable for the removal of sulfur oxides from waste streams.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: June 22, 1976
    Assignee: Rohm and Haas Company
    Inventor: Richard B. Wuchter