Patents Assigned to Stauffer Chemical Company
  • Encapsulation process
    Patent number: 4448929
    Abstract: A protective colloid for use in an interfacial polymerization process comprising a graft copolymer of polyvinyl alcohol and methyl vinyl ether/maleic acid.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: May 15, 1984
    Assignee: Stauffer Chemical Company
    Inventors: Marius Rodson, Herbert B. Scher
  • Composite upholstered furniture or mattress assembly with flame retardant-smolder resistant textile backcoated fabric layer
    Patent number: 4443903
    Abstract: The invention provides a process for rendering textiles or barrier fabric material flame retardant and smolder resistant with a flame retardant and smolder resistant composition comprised of an aminophosponate ester in combination with a thermosetting, nitrogen-containing resin and preferably a reactive elastomeric latex.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: April 24, 1984
    Assignee: Stauffer Chemical Company
    Inventor: George J. Leitner
  • Substantially agglomeration-free catalyst component
    Patent number: 4444967
    Abstract: A substantially agglomeration-free, finely divided catalyst component which is suitable for use as a cocatalyst with organoaluminum compounds in the polymerization of alpha olefins, which is formed by grinding a titanium trichloride material, an effective amount of an electron pair donor compound to enhance the performance of said catalyst component, and an effective amount for agglomeration control of an agglomeration control agent. The agglomeration control agent is effective in either reducing the attractive forces between the finely divided particles in the catalyst component or by preventing the close approach of these particles which would result in agglomeration.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: April 24, 1984
    Assignee: Stauffer Chemical Company
    Inventors: Gregory G. Arzoumanidis, Richard F. Gold, Christian G. Michel
  • Fermentation of whey to produce a thickening polymer
    Patent number: 4444792
    Abstract: Diary whey, a waste product of cheese production, is fermented with Xanthomonas campestris ATTCC 31923 to produce a fermented whey product containing a thickening polymer. The fermented whey product can be used as a thickening agent by the food industry. Yeast extract may be added to the whey prior to fermentation. Xanthomonas campestris ATCC 31923 is a novel microorganism having the ability to grow on lactose as the sole source of carbon.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: April 24, 1984
    Assignee: Stauffer Chemical Company
    Inventors: Robert D. Schwartz, Elizabeth A. Bodie
  • Fermentation of whey to produce a thickening agent
    Patent number: 4444793
    Abstract: Dairy whey, a waste product of cheese production, is fermented to produce a thickening agent for use in the food industry by forming a fermentation broth containing whey and sucrose, and fermenting the broth with Leuconostoc mesenteroides ATCC 14935. The fermentation broth can optionally contain a water-soluble phosphate as a pH buffer and yeast extract.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: April 24, 1984
    Assignee: Stauffer Chemical Company
    Inventors: Robert D. Schwartz, Elizabeth A. Bodie
  • Method for preparation of N-phosphonomethylglycine
    Patent number: 4444693
    Abstract: A method of preparing N-phosphonomethylglycine comprising: (a) reacting O,O-dialkylaminomethylphosphonate with formaldehyde to produce a triazine compound; (b) reacting the triazine formed in step (a) with an acyl cyanide to form the O,O-dialkyl-N-phosphonomethyl-N-cyanomethyl amide; and (c) hydrolyzing the amide formed in step (b) to yield N-phosphonomethylglycine.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: April 24, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Raymond A. Felix
  • Flame retardant-smolder resistant textile backcoating
    Patent number: 4444831
    Abstract: The invention provides a process for rendering textiles or barrier fabric material flame retardant and smolder resistant with a flame retardant and smolder resistant composition comprised of an aminophosponate ester in combination with a thermosetting, nitrogen-containing resin and preferably a reactive elastomeric latex.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: April 24, 1984
    Assignee: Stauffer Chemical Company
    Inventor: George J. Leitner
  • Method for preservation of meat products
    Patent number: 4443484
    Abstract: The compound 3-(4-tolysulfonyl) acrylonitrile, when incorporated in meat products together with an alkali metal nitrite salt, has been found effective in inhibiting the growth of Clostridium botulinum and consequent production of toxin in meat products on storage.
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: April 17, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Robert V. Dahlstrom
  • Method of desulfurizing waste gases containing sulfur dioxide
    Patent number: 4442083
    Abstract: Sulfur dioxide (SO.sub.2) is absorbed from waste gases by absorbing SO.sub.2 in an aqueous absorbent comprising soluble sulfite in an absorber; stripping the SO.sub.2 from the absorbent; absorbing the stripped SO.sub.2 in a separate absorbent for the SO.sub.2 ; and reacting the thus absorbed SO.sub.2 in a liquid Claus reactor forming sulfur. In a preferred embodiment, the gas from the stripping step is subjected to a condensation step in a heat exchanger boiler where steam ingoing to the stripper is generated.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: April 10, 1984
    Assignee: Stauffer Chemical Company
    Inventors: Manuel J. Canales, John Reynolds
  • Production of fermented whey products containing a thickening polymer
    Patent number: 4442128
    Abstract: Dairy whey, a waste product of chesse production, is fermented with an organism to produce a whey product containing a thickening polymer that serves as a thickening agent. Fermentation is carried out by forming a fermentation broth of whey and glucose, and optionally a water soluble phosphate and/or yeast extract and then fermenting the broth with Xanthomonas campestris ATCC 31922. The resultant fermented whey product is used as a thickening agent in the food industry.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: April 10, 1984
    Assignee: Stauffer Chemical Company
    Inventors: Robert D. Schwartz, Elizabeth A. Bodie
  • Haloalkyloxime herbicidal antidotes
    Patent number: 4441916
    Abstract: Herbicide antidote compounds and herbicidal compositions according consisting of an active herbicide compound and an antidote therefore and the methods of use of the antidote compound and compositions wherein the antidote compounds correspond to the formula ##STR1## in which R.sub.1 is haloalkyl, R.sub.2 is selected from haloalkyl and phenyl.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: April 10, 1984
    Assignee: Stauffer Chemical Company
    Inventors: Don R. Baker, Arnold D. Gutman
  • Method for preparation of N-phosphonomethylglycine
    Patent number: 4442041
    Abstract: A method for the preparation of N-phosphonomethylglycine is disclosed which comprises the steps of:(1) reacting N-(diethylphoshonomethyl)iminobisethanol in an oxygen free atmosphere with an alkali metal hydroxide selected from the group consisting of sodium hydroxide and potassium hydroxide, in the presence of water as solvent and a catalyst selected from the group consisting of zinc oxide and cadmium oxide at a high temperature and pressure for a sufficient period of time to cause the reaction to go to completion, and(2) acidifying the product formed.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: April 10, 1984
    Assignee: Stauffer Chemical Company
    Inventor: N. Subramanian
  • Dichloroacetyl oxazolidine herbicide antidotes
    Patent number: 4441914
    Abstract: An herbicide antidote composition comprising:(a) an herbicidally effective amount of a pyrrolidone compound of the formula ##STR1## in which X is hydrogen, chlorine, or methyl;Y is hydrogen, chlorine or bromine;Z is chlorine or bromine;R is hydrogen, alkyl, acetyl, chlorine, bromine, fluorine, iodine, trifluoromethyl, nitro, cyano, alkoxy having 1 to 4 carbon atoms, inclusive, alkylthio having 1 to 4 carbon atoms, inclusive, alkylsulfinyl having 1 to 4 carbon atoms, inclusive, alkylsulfonyl having 1 to 4 carbon atoms, inclusive, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, pentafluoropropionamido, or 3-methylureido;R.sub.1 is hydrogen, alkyl having 1 to 4 carbon atoms, inclusive, chlorine or trifluoromethyl; andR.sub.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: April 10, 1984
    Assignee: Stauffer Chemical Company
    Inventors: Charles J. Duerksen, Benjamin P. Rodriquez
  • Method for preparation of N-phosphonomethylglycine
    Patent number: 4440695
    Abstract: A method for the production of N-phosphonomethylglycine which comprises reacting N,N-bis(phosphonomethyl)glycine having the formula ##STR1## with glycine in the presence of a hydrogen ion donor and of water, and at a sufficient temperature and at a sufficient pressure to cause the reaction to go to completion.
    Type: Grant
    Filed: August 12, 1982
    Date of Patent: April 3, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Jeffrey D. Robbins
  • Thiolcarbamate sulfoxides stabilized with butyrolactone and water
    Patent number: 4440563
    Abstract: Herbicidal thiolcarbamate sulfoxide compositions of improved thermal stability.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: April 3, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Herbert B. Scher
  • Supported catalyst for polymerizing olefins
    Patent number: 4439538
    Abstract: A novel catalytic system for polymerizing olefins comprises:(a) a component containing an organometallic compound of Groups I-III of the periodic table, and(b) a component containing titanium obtained by steps comprising:treating a ferrous chloride support with at least one organic electron donor to form an adduct.milling the ferrous chloride, andpost-treating the milled ferrous chloride adduct with a liquid titanium compound containing halogen.The invention also encompasses the novel catalytic component supported by ferrous chloride, processes for preparing the catalytic component, and the use of the novel catalytic system for polymerizing olefins.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: March 27, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Kyoung R. Im Han
  • Diallyl dichloroacetmide herbicide antidote
    Patent number: 4439227
    Abstract: An herbicide antidote composition comprising:(a) an herbicidally effective amount of a pyrrolidone compound of the formula ##STR1## in which X is hydrogen, chlorine or methyl;Y is hydrogen, chlorine, or bromine;Z is chlorine or bromine;R is hydrogen, alkyl, acetyl, chlorine, bromine, fluorine, iodine, trifluoromethyl, nitro, cyano, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, pentafluoropropionamido, or 3-methylureido;R.sub.1 is hydrogen, alkyl, chlorine, or trifluoromethyl; and,R.sub.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: March 27, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Laddie L. Green
  • Process for preparing phosphonomethylated amino acids
    Patent number: 4439373
    Abstract: A process for preparing phosphonomethylated amino acids comprising protecting a primary amino acid ester or salt with a carbon dioxide protecting group, phosphonomethylating the protected amino compound formed, and removing the carbon dioxide protecting group by acidification.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: March 27, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Sreeramulu Nagubandi
  • Tri-mixed alkylsulfonium salts of N-phosphonomethylgylcine and their use as plant growth regulators and herbicides
    Patent number: 4437874
    Abstract: Novel tri-mixed alkylsulfonium salts of N-phosphonomethylglycine are disclosed herein, having the formula ##STR1## in which R.sub.1, R.sub.2, and R.sub.3 represent C.sub.1 -C.sub.12 alkyl and n is zero or one, wherein no more than two of R.sub.1, R.sub.2, or R.sub.3 are identical. The compounds are useful in regulating the natural growth or development of plants and as herbicides.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: March 20, 1984
    Assignee: Stauffer Chemical Company
    Inventor: George B. Large
  • Fluid bed process for preparing phenylphosphonous dichloride
    Patent number: 4436673
    Abstract: An improved method for preparing phenylphosphonous dihalide comprises reacting PCl.sub.3 and benzene in an electrically heated fluid bed reactor.
    Type: Grant
    Filed: October 23, 1980
    Date of Patent: March 13, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Adam E. Skrzec