Patents by Inventor Dale Steichen

Dale Steichen 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: 6946567
    Abstract: The present invention relates to a process for the skeletal isomerization of unsaturated linear fatty acids to branched fatty acids which comprises contacting said unsaturated linear fatty acids with at least one large pore zeolite catalyst wherein said at least one zeolite catalyst comprises a material having a three dimensional channel structure having a pore diameter of at least 6.0 ?. In another embodiment, the invention relates to a process for the skeletal isomerization and hydrogenation of unsaturated linear fatty acids to saturated branched fatty acids which comprises contacting said unsaturated linear fatty acids in the presence of an acidic catalyst, wherein said acidic catalyst comprises a mesoporous crystalline phase having pore walls containing primary and secondary crystalline building unit structures.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: September 20, 2005
    Assignee: Akzo Nobel N.V.
    Inventors: Shuguang Zhang, Zongchao Zhang, Dale Steichen
  • Patent number: 6831184
    Abstract: The present invention relates to a process for the skeletal isomerization of unsaturated linear fatty acids to branched fatty acids which comprises contacting said unsaturated linear fatty acids with at least one large pore zeolite catalyst wherein said at least one zeolite catalyst comprises a material having a three dimensional channel structure having a pore diameter of at least 6.0 Å. In another embodiment, the invention relates to a process for the skeletal isomerization and hydrogenation of unsaturated linear fatty acids to saturated branched fatty acids which comprises contacting said unsaturated linear fatty acids with at least one metal-zeolite catalyst.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: December 14, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Shuguang Zhang, Zongchao Zhang, Dale Steichen
  • Patent number: 6770608
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 50% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a softening agent which comprises a high diester quaternary ammonium salt mixture comprising mono- and diester components derived for ether dialkanolamines. The invention also relates to processes for preparing said softening agents, and methods of use as a fabric softener and as a hair and skin conditioner.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: August 3, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Ralph Franklin, Robert Mendello, Paul Albert Iacobucci, Dale Steichen, Phuong-Nga Trinh
  • Publication number: 20030191330
    Abstract: The present invention relates to a process for the skeletal isomerization of unsaturated linear fatty acids to branched fatty acids which comprises contacting said unsaturated linear fatty acids with at least one large pore zeolite catalyst wherein said at least one zeolite catalyst comprises a material having a three dimensional channel structure having a pore diameter of at least 6.0 Å. In another embodiment, the invention relates to a process for the skeletal isomerization and hydrogenation of unsaturated linear fatty acids to saturated branched fatty acids which comprises contacting said unsaturated linear fatty acids in the presence of an acidic catalyst, wherein said acidic catalyst comprises a mesoporous crystalline phase having pore walls containing primary and secondary crystalline building unit structures.
    Type: Application
    Filed: January 9, 2003
    Publication date: October 9, 2003
    Inventors: Shuguang Zhang, Zongchao Zhang, Dale Steichen
  • Publication number: 20030100780
    Abstract: The present invention relates to a process for the skeletal isomerization of unsaturated linear fatty acids to branched fatty acids which comprises contacting said unsaturated linear fatty acids with at least one large pore zeolite catalyst wherein said at least one zeolite catalyst comprises a material having a three dimensional channel structure having a pore diameter of at least 6.0 Å. In another embodiment, the invention relates to a process for the skeletal isomerization and hydrogenation of unsaturated linear fatty acids to saturated branched fatty acids which comprises contacting said unsaturated linear fatty acids with at least one metal-zeolite catalyst.
    Type: Application
    Filed: June 21, 2002
    Publication date: May 29, 2003
    Inventors: Shuguang Zhang, Zongchao Zhang, Dale Steichen
  • Publication number: 20020025915
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 50% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a softening agent which comprises a high diester quaternary ammonium salt mixture comprising mono- and diester components derived for ether dialkanolamines. The invention also relates to processes for preparing said softening agents, and methods of use as a fabric softener and as a hair and skin conditioner.
    Type: Application
    Filed: April 6, 2001
    Publication date: February 28, 2002
    Inventors: Ralph Franklin, Robert Mendello, Paul Albert Iacobucci, Dale Steichen, Phuong-Nga Trinh
  • Patent number: 6323167
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 50% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a softening agent which comprises a high diester quaternary ammonium salt mixture comprising mono- and diester components derived for ether dialkanolamines. The invention also relates to processes for preparing said softening agents, and methods of use as a fabric softener and as a hair and skin conditioner.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: November 27, 2001
    Assignee: Akzo Nobel N.V.
    Inventors: Ralph Franklin, Robert Mendello, Paul Albert Iacobucci, Dale Steichen, Phuong-Nga Trinh, Maurice Dery
  • Patent number: 6264931
    Abstract: A 2-in-1 conditioning shampoo includes an anionic surfactant and a cationic hair conditioning agent. The cationic hair conditioning agent is a fatty aliphatic quaternary ammonium compound having ester linkages. The cationic hair conditioning agent can be prepared by reacting an alkanol amine with a fatty acid or fatty acid ester having an aliphatic group of from about 11 to about 24 carbon atoms and thereafter quaternizing the resulting esteramine with an alkylating agent.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: July 24, 2001
    Assignee: Akzo Nobel nv.
    Inventors: Ralph Franklin, Paul Iacobucci, Dale Steichen, Diana Tang, Phuong-Nga Trinh
  • Patent number: 6107498
    Abstract: Methods for producing carboxylic amides involves combining near-stoichiometric amounts of carboxylic acid and amine in a reaction vessel and reacting under pressures greater than atmospheric pressure. Alternatively, an excess of amine is reacted with carboxylic acid at atmospheric pressure to produce a carboxylic amide.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: August 22, 2000
    Assignee: AKZO Nobel N.V.
    Inventors: Bernard Maisonneuve, Dale Steichen, Ralph Franklin, Kornelis Overkempe
  • Patent number: 6037315
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 50% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a softening agent which comprises a high diester quaternary ammonium salt mixture comprising mono- and diester components derived for ether dialkanolamines. The invention also relates to processes for preparing said softening agents, and methods of use as a fabric softener and as a hair and skin conditioner.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: March 14, 2000
    Assignee: Akzo Nobel NV
    Inventors: Ralph Franklin, Robert Mendello, Paul Albert Iacobucci, Dale Steichen, Phuong-Nga Trinh, Maurice Dery
  • Patent number: 6013115
    Abstract: Engine deposits are reduced by adding an effective deposit-controlling amount of esteramine to hydrocarbon fuel.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: January 11, 2000
    Assignee: Akzo N.V.
    Inventors: Michael D. Kanakia, Ralph Franklin, Dale Steichen, James F. Gadberry
  • Patent number: 5939059
    Abstract: A 2-in-1 conditioning shampoo includes an anionic surfactant and a cationic hair conditioning agent. The cationic hair conditioning agent is a fatty aliphatic quaternary ammonium compound having ester linkages. The cationic hair conditioning agent can be prepared by reacting an alkanol amine with a fatty acid or fatty acid ester having an aliphatic group of from about 11 to about 24 carbon atoms and thereafter quaternizing the resulting esteramine with an alkylating agent.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: August 17, 1999
    Assignee: Akzo Nobel nv
    Inventors: Ralph Franklin, Paul Iacobucci, Dale Steichen, Diana Tang, Phuong-Nga Trinh