Patents by Inventor David D. Fleming

David D. Fleming 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: 8070046
    Abstract: An amine flux composition is provided, comprising, as an initial component: an amine fluxing agent represented by formula I: wherein R1, R2, R3 and R4 are independently selected from a hydrogen, a substituted C1-80 alkyl group, an unsubstituted C1-80 alkyl group, a substituted C7-80 arylalkyl group and an unsubstituted C7-80 arylalkyl group; wherein R7 and R8 are independently selected from a C1-20 alkyl group, a substituted C1-20 alkyl group, a C6-20 aryl group and a substituted C6-20 aryl group or wherein R7 and R8, together with the carbon to which they are attached, form a C3-20 cycloalkyl ring optionally substituted with a C1-6 alkyl group; wherein R10 and R11 are independently selected from a C1-20 alkyl group, a substituted C1-20 alkyl group, a C6-20 aryl group and a substituted C6-20 aryl group or wherein R10 and R11, together with the carbon to which they are attached, form a C3-20 cycloalkyl ring optionally substituted with a C1-6 alkyl group; and, wherein R9 is selected from a hydrogen, a C1-30
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 6, 2011
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: David D. Fleming, Mike K. Gallagher, Kim Sang Ho, Xiang-Qian Liu, Mark R. Winkle, Asghar Akber Peera, Glenn N. Robinson, Ian Tomlinson
  • Patent number: 8070045
    Abstract: A curable amine flux composition is provided, comprising, as initial components: a resin component having at least two oxirane groups per molecule; an amine fluxing agent represented by formula I: wherein R1, R2, R3 and R4 are independently selected from a hydrogen, a substituted C1-80 alkyl group, an unsubstituted C1-80 alkyl group, a substituted C7-80 arylalkyl group and an unsubstituted C7-80 arylalkyl group; wherein R7 and R8 are independently selected from a C1-20 alkyl group, a substituted C1-20 alkyl group, a C6-20 aryl group and a substituted C6-20 aryl group or wherein R7 and R8, together with the carbon to which they are attached, form a C3-20 cycloalkyl ring optionally substituted with a C1-6 alkyl group; wherein R10 and R11 are independently selected from a C1-20 alkyl group, a substituted C1-20 alkyl group, a C6-20 aryl group and a substituted C6-20 aryl group or wherein R10 and R11, together with the carbon to which they are attached, form a C3-20 cycloalkyl ring optionally substituted with
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 6, 2011
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: David D. Fleming, Mike K. Gallagher, Kim Sang Ho, Xiang-Qian Liu, Mark R. Winkle, Asghar Akber Peera, Glenn N. Robinson, Ian Tomlinson
  • Patent number: 8070047
    Abstract: A flux composition is provided, comprising, as an initial component: a fluxing agent represented by formula I: wherein R1, R2, R3 and R4 are independently selected from a hydrogen, a substituted C1-80 alkyl group, an unsubstituted C1-80 alkyl group, a substituted C7-80 arylalkyl group and an unsubstituted C7-80 arylalkyl group; and wherein zero to three of R1, R2, R3 and R4 is(are) hydrogen. Also provided is a method of soldering an electrical contact using the flux composition.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 6, 2011
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: David D. Fleming, Mike K. Gallagher, Kim Sang Ho, Xiang-Qian Liu, Mark R. Winkle
  • Patent number: 8070043
    Abstract: A curable flux composition is provided, comprising, as initial components: a resin component having at least two oxirane groups per molecule; a fluxing agent represented by formula I: wherein R1, R2, R3 and R4 are independently selected from a hydrogen, a substituted C1-80 alkyl group, an unsubstituted C1-80 alkyl group, a substituted C7-80 arylalkyl group and an unsubstituted C7-80 arylalkyl group; and wherein zero to three of R1, R2, R3 and R4 is(are) hydrogen; and, optionally, a curing agent. Also provided is a method of soldering an electrical contact using the curable flux composition.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 6, 2011
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: David D. Fleming, Mike K. Gallagher, Kim Sang Ho, Xiang-Qian Liu, Mark R. Winkle
  • Patent number: 8070044
    Abstract: A polyamine flux composition is provided, comprising, as an initial component: a polyamine fluxing agent represented by formula I: wherein R1, R2, R3 and R4 are independently selected from a hydrogen, a substituted C1-80 alkyl group, an unsubstituted C1-80 alkyl group, a substituted C7-80 arylalkyl group and an unsubstituted C7-80 arylalkyl group; wherein R7 comprises at least two tertiary carbons and is selected from an unsubstituted C5-80 alkyl group, a substituted C5-80 alkyl group, an unsubstituted C12-80 arylalkyl group and a substituted C12-80 arylalkyl group; and, wherein the two nitrogens shown in formula I are each separately bound to one of the at least two tertiary carbons of R7; with the proviso that when the polyamine fluxing agent of formula I is represented by formula Ia: then zero to three of R1, R2, R3 and R4 is(are) hydrogen. Also provided is a method of soldering an electrical contact using the polyamine flux composition.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: December 6, 2011
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: David D. Fleming, Mike K. Gallagher, Kim Sang Ho, Xiang-Qian Liu, Mark R. Winkle