Patents by Inventor Karen M. Henderson

Karen M. Henderson 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: 6974874
    Abstract: The invention relates to a process for reducing the monomeric aziridine content in a polyaziridine forming reaction mixture by adding to the polyaziridine forming reaction mixture an excess of a carbodiimide scavenger wherein the excess is based on the equivalent ratio of scavenger to monomeric aziridine, and to a product obtained by this process and to a coating composition containing the product obtained by the process.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: December 13, 2005
    Assignee: Bayer MaterialScience LLC
    Inventors: Lanny D. Venham, Myron W. Shaffer, Karsten Danielmeier, Karen M. Henderson
  • Patent number: 6911501
    Abstract: The present invention relates to novel aspartates, their method of production and the use of these aspartates as reactive components for polyisocyanates in two-component polyurethane coating compositions and for preparing polyurethane prepolymers. The aspartates are prepared by first reacting a di- or polyamine with an unsaturated ester and then reacting the resultant product with a maleimide.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: June 28, 2005
    Assignees: Bayer MaterialScience LLC, Bayer MaterialScience AG
    Inventors: Karsten Danielmeier, Charles A. Gambino, Rolf Gertzmann, Richard R. Roesler, Terrell D. Wayt, Michele E. Vargo, Edward P. Squiller, Karen M. Henderson
  • Patent number: 6887964
    Abstract: A moisture-curable, alkoxysilane-functional polyether urethanes containing a) 20 to 90% by weight, based on the weight of a) and b), of a polyether urethane containing two or more reactive silane groups and one or more polyether segments, wherein the polyether segments have a number average molecular weight of at least 3000 and a degree of unsaturation of less than 0.04 milliequivalents/g, provided that the sum of the number average molecular weights of all of the polyether segments per molecule averages 6000 to 20,000, and wherein the reactive silane groups are incorporated as the reaction product of an isocyanate group with a compound corresponding to the formula b) 10 to 80% by weight, based on the weight of a) and b), of a polyether urethane containing one reactive silane group and one or more polyether segments having a number average molecular weight of 1000 to 15,000.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: May 3, 2005
    Assignee: Bayer Materialscience LLC
    Inventors: Kurt C. Frisch, Derek L. Crawford, Richard R. Roesler, Karen M. Henderson, Michael D. Strohecker
  • Publication number: 20040097682
    Abstract: A moisture-curable, alkoxysilane-functional polyether urethanes containing
    Type: Application
    Filed: October 22, 2003
    Publication date: May 20, 2004
    Inventors: Kurt C. Frisch, Derek L. Crawford, Richard R. Roesler, Karen M. Henderson, Michael D. Strohecker
  • Publication number: 20040087762
    Abstract: The invention relates to a process for reducing the monomeric aziridine content in a polyaziridine forming reaction mixture by adding to the polyaziridine forming reaction mixture an excess of a carbodiimide scavenger wherein the excess is based on the equivalent ratio of scavenger to monomeric aziridine, and to a product obtained by this process and to a coating composition containing the product obtained by the process.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventors: Lanny D. Venham, Myron W. Shaffer, Karsten Danielmeier, Karen M. Henderson
  • Publication number: 20030229192
    Abstract: The present invention relates to moisture-curable, alkoxysilane-functional polyether urethanes containing
    Type: Application
    Filed: May 31, 2002
    Publication date: December 11, 2003
    Inventors: Kurt C. Frisch, Derek L. Crawford, Richard R. Roesler, Karen M. Henderson, Michael D. Strohecker
  • Patent number: 6552157
    Abstract: The present invention relates to polyurethanes containing secondary amide groups in the backbones of the polyurethanes, wherein the secondary amide groups (calculated as NH—CO—, MW 43) are present in an amount of 1 to 14% by weight, based on the weight of the polyurethanes, and correspond to the formula —X1—R1—NH—C(O)—R2—X2—  (I) wherein X1 and X2 are the same or different and represent the groups obtained by removing a hydrogen atom from a hydroxy group or a primary or secondary amino group and R1 and R2 are the same or different and represent linear or branched hydrocarbon groups that are optionally substituted by groups that do not contain isocyanate-reactive hydrogen atoms. The present invention also relates to one-component, thermoset compositions containing the polyurethanes with secondary amide groups in the backbone and a cross-linking component that is reactive with amide groups.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: April 22, 2003
    Assignee: Bayer Corporation
    Inventors: Charles A. Gambino, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Robert A. Sylvester
  • Patent number: 6455631
    Abstract: The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes contain terminal hydrazide groups and correspond to the formula wherein the terminal, modified hydrazide groups are present in an amount of 1 to 25% by weight [calculated as C(O)—NH—NH—C(O), MW 84], based on the weight of the polyurethanes, and wherein X represents OR′ or NHR′, R represents the residue obtained by removing the isocyanate groups from an NCO prepolymer, R′ represents a group which is inert to Isocyanate groups under the conditions used to form the polyurethane of in formula I, R″ represents a divalent, linear or branched aliphatic group containing 2 to 10 carbon atoms, provided that there are at least two carbons between the oxygen atoms, wherein the aliphatic group may optionally be substituted by heteroatoms to form ether or ester groups, m is 0 or 1 and n is 2 to 4.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: September 24, 2002
    Assignees: Bayer Corporation, Bayer Aktiengesellschaft
    Inventors: Harald Blum, Lyubov K. Gindin, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Brian Long, Robert A. Sylvester, Douglas A. Wicks
  • Patent number: 6455632
    Abstract: The present invention relates to aqueous polyurethane dispersions containing secondary amide groups in the backbone of the polyurethane, wherein the secondary amide groups (calculated as NH—CO—, MW 43) are present in an amount of 1 to 14% by weight, based on the weight of the polyurethanes, and correspond to the formula —X1—R1—NH—C(O)—R2—X2—  (I) wherein X1, and X2 are the same or different and represent the groups obtained by removing a hydrogen atom from a hydroxy group or a primary or secondary amino group and R1and R2 are the same or different and represent linear or branched hydrocarbon groups that are optionally substituted by groups that do not contain isocyanate-reactive hydrogen atoms. The present invention also relates to aqueous, one-component, thermoset compositions containing the polyurethanes with amide groups in the backbone and a cross-linking component that is reactive with amide groups.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: September 24, 2002
    Assignee: Bayer Corporation
    Inventors: Lyubov K. Gindin, Karen M. Henderson, Sze-Ming Lee, Brian Long
  • Patent number: 6444746
    Abstract: The present invention relates to aqueous polyurethane dispersions containing amide groups that are pendant to the backbone of the polyurethane, wherein the amide groups (calculated as NH—CO—, MW43) are present in an amount of 1 to 14% by weight, based on the weight of the polyurethanes. The present invention also relates to aqueous, one-component, thermoset compositions containing the polyurethanes with amide groups in the backbone and a cross-linking component that is reactive with amide groups. Finally, the present invention relates to coatings, sealants and adhesives prepared from these aqueous, one-component, thermoset compositions.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: September 3, 2002
    Assignee: Bayer Corporation
    Inventors: Lyubov K. Gindin, Karen M. Henderson, Sze-Ming Lee, Brian Long
  • Publication number: 20020103292
    Abstract: The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes contain terminal hydrazide groups and correspond to the formula 1
    Type: Application
    Filed: December 1, 2000
    Publication date: August 1, 2002
    Inventors: Harald Blum, Lyubov K. Gindin, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Brian Long, Robert A. Sylvester, Douglas A. Wicks
  • Publication number: 20020068800
    Abstract: The present invention relates to polyurethanes containing secondary amide groups in the backbones of the polyurethanes, wherein the secondary amide groups (calculated as NH—CO—, MW 43) are present in an amount of 1 to 14% by weight, based on the weight of the polyurethanes, and correspond to the formula
    Type: Application
    Filed: December 5, 2000
    Publication date: June 6, 2002
    Inventors: Charles A. Gambino, Karen M. Henderson, Patricia B. Jacobs, Sze-Ming Lee, Robert A. Sylvester
  • Publication number: 20020068789
    Abstract: The present invention relates to aqueous polyurethane dispersions containing secondary amide groups in the backbone of the polyurethane, wherein the secondary amide groups (calculated as NH—CO—, MW 43) are present in an amount of 1 to 14% by weight, based on the weight of the polyurethanes, and correspond to the formula
    Type: Application
    Filed: December 5, 2000
    Publication date: June 6, 2002
    Inventors: Lyubov K. Gindin, Karen M. Henderson, Sze-Ming Lee, Brian Long
  • Publication number: 20020068790
    Abstract: The present invention relates to aqueous polyurethane dispersions containing amide groups that are pendant to the backbone of the polyurethane, wherein the amide groups (calculated as NH—CO—, MW 43) are present in an amount of 1 to 14% by weight, based on the weight of the polyurethanes.
    Type: Application
    Filed: December 5, 2000
    Publication date: June 6, 2002
    Inventors: Lyubov K. Gindin, Karen M. Henderson, Sze-Ming Lee, Brian Long
  • Patent number: 6362359
    Abstract: The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer, X represents OR′ or NHR′ and R′ represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I, R″ represents a divalent, linear or branched aliphatic group containing 2 to 10 carbon atoms, provided that there are at least two carbons between the oxygen atoms wherein the aliphatic group may optionally be substituted by heteroatoms to form ether or ester groups, and n is 2 to 6.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: March 26, 2002
    Assignee: Bayer Corporation
    Inventors: Sze-Ming Lee, Karen M. Henderson, Patricia B. Jacobs, Robert A. Sylvester, Douglas A. Wicks
  • Patent number: 6150457
    Abstract: The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer,X represents OR' or NHR' andR' represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I andn has a value of 2 to 6.The present invention also relates to one-component, thermoset coating compositions containing the compounds of formula I and a cross-linking component that is reactive with these compounds. Finally, the present invention relates coatings, sealants and adhesives prepared from these thermoset compositions.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: November 21, 2000
    Assignees: Bayer Corporation, Bayer Aktiengesellscaft
    Inventors: Sze-Ming Lee, Douglas A. Wicks, Eberhard Koenig, Carol L. Kinney, Karen M. Henderson
  • Patent number: 6127514
    Abstract: The present invention relates to one-component, thermoset compositions containinga) compounds containing modified hydrazide groups and corresponding to formula I ##STR1## wherein p2 R represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer,X represents OR' or NHR' andR' represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I andn has a value of 2 to 6,b) compounds containing two or more epoxy groups andc) a basic catalyst.The present invention also relates to coatings, adhesives and sealants prepared from these thermoset compositions.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: October 3, 2000
    Assignees: Bayer Corporation, Bayer Aktiengesellschaft
    Inventors: Douglas A. Wicks, Sze-Ming Lee, Eberhard Koenig, Carol L. Kinney, Karen M. Henderson