Patents by Inventor Dennis H. Fisher

Dennis H. Fisher 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: 9868814
    Abstract: The invention pertains to low profile additives (“LPA”) comprising branched polymers having a weight average molecular weight (Mw) of at least about 20,000 grams/mole and a number average molecular weight (Mn) of at least about 3,000 grams/mole and methods for making the LPAs. The invention further concerns compositions comprising LPAs synthesized from one or more difunctional monomers and one or more branching agents. Also, disclosed are thermosettable resinous compositions and molded articles comprising the LPAs.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: January 16, 2018
    Assignee: Ashland Licensing and Intellectual Property LLC
    Inventors: Husam A. A. Rasoul, Dejan D. Andjelkovic, Dennis H. Fisher
  • Patent number: 9034982
    Abstract: Formulations comprising an isosorbide-modified unsaturated polyester comprising maleic acid, fumaric acid, itaconic acid or maleic anhydride and isosorbide and one or more low profile additives. The formulations exhibit better shrink control in molding compound formulations with standard low profile additives than their non-isosorbide-modified analogues. These isosorbide-modified unsaturated polyester resins may be applied in molding compounds like sheet molding compounds or bulk molding compounds and may be components of fiber reinforced composites or other composite materials.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: May 19, 2015
    Assignee: ASHLAND LICENSING AND INTELLECTUAL PROPERTY, LLC
    Inventors: Dejan D. Andjelkovic, Darcy A. Culkin, Roman Loza, Michael J. Sumner, Timothy A. Tufts, Dennis H. Fisher
  • Publication number: 20110245393
    Abstract: The invention pertains to low profile additives (“LPA”) comprising branched polymers having a weight average molecular weight (Mw) of at least about 20,000 grams/mole and a number average molecular weight (Mn) of at least about 3,000 grams/mole and methods for making the LPAs. The invention further concerns compositions comprising LPAs synthesized from one or more Bifunctional monomers and one or more branching agents. Also, disclosed are thermosettable resinous compositions and molded articles comprising the LPAs.
    Type: Application
    Filed: June 17, 2011
    Publication date: October 6, 2011
    Inventors: Husam A.A. Rasoul, Dejan D. Andjelkovic, Dennis H. Fisher
  • Publication number: 20110040004
    Abstract: Formulations comprising an isosorbide-modified unsaturated polyester comprising maleic acid, fumaric acid, itaconic acid or maleic anhydride and isosorbide and one or more low profile additives. The formulations exhibit better shrink control in molding compound formulations with standard low profile additives than their non-isosorbide-modified analogues. These isosorbide-modified unsaturated polyester resins may be applied in molding compounds like sheet molding compounds or bulk molding compounds and may be components of fiber reinforced composites or other composite materials.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 17, 2011
    Inventors: Dejan D. Andjelkovic, Darcy A. Culkin, Roman Loza, Micheal J. Sumner, Timothy A. Tuffs, Dennis H. Fisher
  • Publication number: 20090281230
    Abstract: The invention pertains to low profile additives (“LPA”) comprising branched polymers having a weight average molecular weight (Mw) of at least about 20,000 grams/mole and a number average molecular weight (Mn) of at least about 3,000 grams/mole and methods for making the LPAs. The invention further concerns compositions comprising LPAs synthesized from one or more difunctional monomers and one or more branching agents. Also, disclosed are thermosettable resinous compositions and molded articles comprising the LPAs.
    Type: Application
    Filed: May 9, 2008
    Publication date: November 12, 2009
    Applicant: Ashland Licensing and Intellectual Property LLC
    Inventors: Husam A.A. Rasoul, Dejan D. Andjelkovic, Dennis H. Fisher
  • Publication number: 20080090954
    Abstract: Low shrinkage sheet molded composite (SMC) formulations and methods for producing low shrinkage sheet molded composites from the SMC formulations are provided. Thermosetting low (LPA) profile additive compositions and the use of thermosetting LPA compositions in producing low shrinkage sheet molded composites are also provided. The LPA compositions allow for the production of sheet molded composites with a high quality surface profile which have both high mechanical and dimensional stability.
    Type: Application
    Filed: October 17, 2006
    Publication date: April 17, 2008
    Applicant: Ashland Licensing and Intellectual Property LLC
    Inventors: Michael J. Sumner, Timothy A. Tufts, Dennis H. Fisher
  • Patent number: 6974848
    Abstract: This invention relates to low-density thermosetting sheet molding compounds (SMC) including a treated inorganic clay, a curative, a low profile agent, a reinforcing agent, and preferably a low-density filler. The thermosetting SMC are used to prepare exterior and structural thermoset articles, e.g. auto parts, panels, etc.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: December 13, 2005
    Inventors: Helena Twardowska, Laurence G. Dammann, Dennis H. Fisher
  • Publication number: 20030199625
    Abstract: This invention relates to low-density thermosetting sheet molding compounds (SMC) comprising a treated inorganic clay, a curative, a low profile agent, a reinforcing agent, and preferably a low-density filler. The thermosetting SMC are used to prepare exterior and structural thermoset articles, e.g. auto parts, panels, etc.
    Type: Application
    Filed: April 16, 2002
    Publication date: October 23, 2003
    Inventors: Helena Twardowska, Laurence G. Dammann, Dennis H. Fisher
  • Patent number: 6617394
    Abstract: The invention relates to low molecular weight LPA surface quality enhancers derived from C36-44 dimer acids capped with a glycol or a polyether polyol. The capped dimer acids are incompatible in the cured matrix of a polyester molding composition.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: September 9, 2003
    Assignee: Ashland Inc.
    Inventors: Cynthia L. Smith, Dennis H. Fisher
  • Publication number: 20030092841
    Abstract: The invention relates to low molecular weight LPA surface quality enhancers derived from C36-44 dimer acids capped with a glycol or a polyether polyol. The capped dimer acids are incompatible in the cured matrix of a polyester molding composition.
    Type: Application
    Filed: September 21, 2001
    Publication date: May 15, 2003
    Inventors: Cynthia L. Smith, Dennis H. Fisher
  • Patent number: 5552478
    Abstract: This invention is a thermoplastic saturated polyester low profile additive (low profile additive) useful in sheet molding compounds for parts, especially vehicle parts, the additive has a major component derived from aromatic compounds such as terephthalic acid including recycled polyethylene terephthalate. Asymmetrical glycols are an important ingredient and can be used to digest recycled PET to make oligomeric glycols which are reacted with acids having fewer than 12 carbon atoms to make one of the low profile additives of this invention.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: September 3, 1996
    Assignee: Ashland Inc.
    Inventor: Dennis H. Fisher
  • Patent number: 5504151
    Abstract: This invention is the polycapped oligomer adduct of a long chain fatty acid with a multi hydroxy functional or multi epoxy functional compound. This polycapped oligomer is useful in resin compositions to enhance the performance of thermoplastic low profile additives which improve the surface quality of molded composites such as automotive body panels.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: April 2, 1996
    Assignee: Ashland Inc.
    Inventors: Dennis H. Fisher, Timothy A. Tufts, C. Timothy Moss
  • Patent number: 4644015
    Abstract: Blends of polyol and melamine for use in the manufacture of fire retardant polyurethane foams are stabilized by the addition of diethanolamine, ethanolamine, trihexylamine, or mixtures thereof.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: February 17, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Carl Scaccia, Dennis H. Fisher, Peter E. Throckmorton
  • Patent number: 4394528
    Abstract: A high density liquid hydrocarbon fuel composition singularly suited for propelling turbojet limited volume missile systems designed for shipborne deployment. The contemplated fuels are basically composed of the saturated analogues of dimers of methyl cyclopentadiene and of dicyclopentadiene and optionally include the saturated analogues of the co-trimers of said dienes or the trimers of cyclopentadiene. The various dimers and trimers are combined in a relative relationship to provide optimal performing fuels for the indicated purpose.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: July 19, 1983
    Assignee: Ashland Oil, Inc.
    Inventor: Dennis H. Fisher
  • Patent number: 4367351
    Abstract: A high density specialty fuel for propelling limited volume ramjet and turbojet missile systems comprising a blend of at least 70 weight percent of exotetrahydrodicyclopentadiene and a correspondingly minor amount of a combination of a mixture of C.sub.5 -C.sub.7 alkanes and/or cycloalkanes and hydrogenated dimers of norbornadiene.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: January 4, 1983
    Assignee: Ashland Oil, Inc.
    Inventors: Dennis H. Fisher, Steven C. Howe, Richard L. Linard
  • Patent number: 4355194
    Abstract: A method for catalytically isomerizing a mixture of hexacyclic dimers obtained by dimerizing norbornadiene in the presence of a zero valent iron complex whereby the hydrogenated derivatives of the resultant isomerization product exhibits substantially lower freeze point than that associated with the hydrogenated derivatives of said precursor dimer mixture, the latter representing the highest energy liquid hydrocarbon fuel commercially available.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: October 19, 1982
    Assignee: Ashland Oil, Inc.
    Inventors: Richard V. Norton, Dennis H. Fisher, Garry M. Graham, Peter J. Frank
  • Patent number: 4286109
    Abstract: A high density specialty fuel for propelling limited volume ramjet and turbojet missile systems comprising a blend of at least 70 weight percent of exotetrahydrodicyclopentadiene and a correspondingly minor amount of a combination of a C.sub.5 -C.sub.7 alkane or cycloalkane and a tetrahydro derivative of the trimer and/or co-trimer of cyclopentadiene and methylcyclopentadiene.
    Type: Grant
    Filed: July 31, 1980
    Date of Patent: August 25, 1981
    Assignee: Ashland Oil, Inc.
    Inventors: Richard V. Norton, Dennis H. Fisher
  • Patent number: 4277636
    Abstract: Method for effecting the formation of co-trimers of cyclopentadiene and methylcyclopentadiene whereby a mixture of the dimers of said dienes is heated in the presence of an inert solvent. The foregoing method is implemented to provide a high energy fuel by substantially completely hydrogenating the resultant trimerization product.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: July 7, 1981
    Assignee: Ashland Oil, Inc.
    Inventors: Richard V. Norton, Peter J. Frank, Dennis H. Fisher, Steven C. Howe