Patents by Inventor Thomas C. Klingler

Thomas C. Klingler 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: 4528384
    Abstract: Novel polymers having high activity as cationic surface-active agents are prepared by the addition polymerization of ethylenically unsaturated aromatic sulfonium salts, e.g., ##STR1## When such polymers are heated and/or dried, they are irreversibly converted to inert, nonionic residues without the elimination of odorous by-products.The novel sulfonium salt polymers having relatively low molecular weight and low charge density are particularly useful as surfactants or emulsifiers in the emulsion polymerization of ethylenically unsaturated monomers such as styrene, butadiene, alkyl acrylates and the like. The polymers having high molecular weight and high charge density are useful as thickeners and flocculants.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: July 9, 1985
    Assignee: The Dow Chemical Company
    Inventors: Donald L. Schmidt, Thomas C. Klingler, Ritchie A. Wessling
  • Patent number: 4477640
    Abstract: Novel polymers having high activity as cationic surface-active agents are prepared by the addition polymerization of ethylenically unsaturated aromatic sulfonium salts, e.g., ##STR1## When such polymers are heated and/or dried, they are irreversibly converted to inert, nonionic residues without the elimination of odorous by-products. The novel sulfonium salt polymers having relatively low molecular weight and low charge density are particularly useful as surfactants or emulsifiers in the emulsion polymerization of ethylenically unsaturated monomers such as styrene, butadiene, alkyl acrylates and the like. The polymers having high molecular weight and high charge density are useful as thickeners and flocculants.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: October 16, 1984
    Assignee: The Dow Chemical Company
    Inventors: Donald L. Schmidt, Thomas C. Klingler, Ritchie A. Wessling
  • Patent number: 4431768
    Abstract: Aqueous acidic compositions which contain a combination of an organic polymer having a bound latent source of thiolate ions, such as isothiouronium groups and an organic polymer having bound cationic onium groups, such as sulfonium groups, or a polymer containing both kinds of groups can be cured in the wet state by raising the pH to above about 9 at a temperature from about 0.degree. C. to about 100.degree. C.
    Type: Grant
    Filed: May 4, 1982
    Date of Patent: February 14, 1984
    Assignee: The Dow Chemical Company
    Inventors: Ritchie A. Wessling, Thomas C. Klingler
  • Patent number: 4214096
    Abstract: Novel isothiouronium salts are herein described which correspond to the formula ##STR1## wherein R and R' are each independently hydrocarbyl or inertly-substituted hydrocarbyl of at least 4 carbon atoms; R.sub.1 -R.sub.4 are each independently alkyl or hydroxyalkyl of 1 to 4 carbon atoms, or R.sub.1 and R.sub.3 are joined to form a 5- or 6-membered heterocyclic ring; n is 0 or 1; and A.sup..crclbar. is an inert neutralizing anion. The isothiouronium salts are surprisingly effective dispersing agents and are used in forming electrodepositable latexes.
    Type: Grant
    Filed: June 15, 1979
    Date of Patent: July 22, 1980
    Assignee: The Dow Chemical Company
    Inventors: Thomas C. Klingler, Ritchie A. Wessling, Dale S. Gibbs
  • Patent number: 4196298
    Abstract: Novel cyclic sulfonium ylids corresponding to the formula ##STR1## wherein R is a hydrocarbylene radical (or a hydrocarbylene radical whose chain length is interrupted by an atom of oxygen or sulfur) of from 2 to about 20 carbon atoms, are useful as cross-linking agents for carboxyl-containing polymers. The compounds are conveniently prepared by reacting phenacyltetrahydrothiophenium bromide with the corresponding hydrocarbylene diisocyanate in the presence of a strong base (e.g. sodium hydride) and anhydrous tetrahydrofuran.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: April 1, 1980
    Assignee: The Dow Chemical Company
    Inventors: Thomas C. Klingler, Donald L. Schmidt
  • Patent number: 4089877
    Abstract: Compounds of the formula ##STR1## wherein: EACH R individually is H, OH or C.sub.1 -C.sub.4 alkoxy;Each R' individually is H or C.sub.1 -C.sub.4 alkyl, and a is 1 or 2;Each sulfur is ortho or para to a phenolic oxygen;x is 0 or a positive number;y is 0 or a positive number;Z is a bridging group of the formula:(1) --O--, --S--, --O(C.sub.m H.sub.2m)O-- where m is 1-6, and .SIGMA.(x+y)=1;(2) --CR".sub.2 -- where R" is C.sub.1 -C.sub.4 alkyl, and .SIGMA.(x+y)=1; or(3) --CH.sub.2 -- and .SIGMA.(x+y)=1-20;Are produced in the process comprising the steps of:(a) reacting chlorine or sulfuryl chloride with a solution comprising a cyclic polymethylene sulfide (e.g. thiophane), iodine and HCl dissolved in liquid sulfur dioxide, thus forming a chlorine complex of the cyclic sulfide; and(b) reacting the chlorine complex from step (a) with the appropriate phenol in liquid sulfur dioxide.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: May 16, 1978
    Assignee: The Dow Chemical Company
    Inventors: Thomas C. Klingler, Donald L. Schmidt, Warner Jensen, Jr., Demetrius Urchick
  • Patent number: 4053633
    Abstract: Aryl dibromonitromethyl sulfones, new compounds, wherein aryl is phenyl or lower alkyl phenyl, are effective as antimicrobials at a concentration of about 100 parts per million.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: October 11, 1977
    Assignee: The Dow Chemical Company
    Inventors: Christian T. Goralski, Thomas C. Klingler
  • Patent number: 4052258
    Abstract: Dibromonitromethyl methyl sulfone is effective as a slimicide at a concentration of about 100 parts per million.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: October 4, 1977
    Assignee: The Dow Chemical Company
    Inventors: Christian T. Goralski, Thomas C. Klingler, Paul A. Wolf
  • Patent number: 4002586
    Abstract: Modified cationic latexes are prepared from nonionic or cationic latexes having particles containing chemically bound epoxide groups at or near the particle surface by reacting the latex with a nucleophile such as dimethyl sulfide and an acid such as acetic acid to form a latex having stabilizing onium ions chemically bound to the particle at or near the particle surface.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: January 11, 1977
    Assignee: The Dow Chemical Company
    Inventors: Ritchie A. Wessling, Thomas C. Klingler, Victor E. Meyer
  • Patent number: 3987095
    Abstract: The compounds of the formula ##SPC1##In which R independently is hydrogen, lower alkyl, lower alkoxy, halo or trifluoromethyl; x is 1 to 2; n is 1 to 3, and R.sub.1 and R.sub.2 independently are hydrogen, lower alkyl or phenyl and together with the nitrogen atom form a heterocycle which may contain an oxygen atom as a hetero atom. The compounds are prepared by reacting the corresponding N-substituted-1-(arylthio)methanesulfonamide with small, incremental amounts up to substantially equimolar of 30% hydrogen peroxide in glacial acetic acid at 65.degree.-70.degree. C., to obtain the sulfinyl compound, or substantially two equimolar proportions of 30% hydrogen peroxide in glacial acetic acid at reflux temperature to obtain the sulfonyl compound, and recovering the corresponding sulfinyl or sulfonyl product.
    Type: Grant
    Filed: April 29, 1974
    Date of Patent: October 19, 1976
    Assignee: The Dow Chemical Company
    Inventors: Christian T. Goralski, Thomas C. Klingler
  • Patent number: 3946007
    Abstract: The compounds of the formula ##SPC1##In which R is lower alkyl, lower alkoxy or halo, x is an integer from 0 to 2, n is an integer from 0 to 3, Y is halo and R.sub.1 and R.sub.2 independently are hydrogen, lower alkyl, phenyl or substituted phenyl, or, together with the nitrogen atom, form a heterocyclic ring also containing up to one oxygen atom in the heterocycle. The compounds in which x is 0 are prepared by adding chlorine or bromine to a 1-arylthiomethanesulfonamide in the presence of pyridine to form the 1-arylthio-1, 1-dihalomethanesulfonamide. The compounds in which x is 1 or 2 is prepared by adding sodium hypochlorite or sodium hypobromite to a 1-(arylsulfinyl)methane-sulfonamide or a 1-(arylsulfonyl)methanesulfonamide to form the 1-(arylsulfinyl)-1,1-dihalomethanesulfonamide or 1-(arylsulfonyl)-1,1-dihalomethanesulfonamide, respectively. The compounds are useful as antimicrobial agents.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: March 23, 1976
    Assignee: The Dow Chemical Company
    Inventors: Christian T. Goralski, Thomas C. Klingler