Patents by Inventor Michael J. Darmon
Michael J. Darmon 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).
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Patent number: 5948851Abstract: A coating composition that forms a finish that is soil resistant and easily cleaned having a binder of(A) an acrylic polymer of polymerized hydroxyl containing monomers of hydroxy alkyl (meth)acrylate having 1-4 carbon atoms in the alkyl group, and polymerized monomers from the group of alkyl (meth)acrylates having 1-18 carbon atoms in the alkyl group, styrene or any mixtures of the above and the acrylic polymer having a weight average molecular weight of about 2,000-20,000 determined by gel permeation chromatography,(B) an acrylic polymeric additive of polymerized monomers from the group of alkyl (meth)acrylates having 1-18 carbon atoms in the alkyl groups, styrene or any mixtures of the above, and polymerized fluoro alkyl containing monomer represented by the formula ##STR1## where R is selected from the group of hydrogen or an alkyl group having 1-2 carbon atoms, X is a divalent radical and R.sub.Type: GrantFiled: November 21, 1997Date of Patent: September 7, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Douglas Robert Anton, Michael J. Darmon, William Frank Graham, Richard Ronald Thomas
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Patent number: 5914384Abstract: A coating composition that forms a finish that is soil resistant and easily cleaned having a binder of(A) an acrylic polymer of polymerized hydroxyl containing monomers of hydroxy alkyl (meth)acrylates having 1-4 carbon atoms in the alkyl groups and polymerized monomers from the group of alkyl (meth)acrylates having 1-18 carbon atoms in the alkyl groups, styrene or any mixtures of the above and the acrylic polymer has a weight average molecular weight of about 2,000-20,000 determined by gel permeation chromatography,(B) an acrylic polymeric additive of polymerized hydroxyl containing monomers of hydroxy alkyl (meth)acrylates having 1-4 carbon atoms in the alkyl groups, polymerized monomers from the group of alkyl (meth)acrylates having 1-18 carbon atoms in the alkyl groups, styrene or any mixtures of the above and polymerized fluoro alkyl containing monomer represented by the formula ##STR1## where R is selected from the group of hydrogen or an alkyl group having 1-2 carbon atoms, X is a divalent radical andType: GrantFiled: November 21, 1997Date of Patent: June 22, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Douglas Robert Anton, Michael J. Darmon, William Frank Graham, Richard Ronald Thomas
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Patent number: 5773534Abstract: An improved method of free radical polymerization conducted in the presence of a relatively low molecular weight macromonomer such as can be made with a metal chelate chain transfer catalyst. This method has various uses, including reducing the molecular weight of a variety of crosslinkable polymers and copolymers.Type: GrantFiled: November 7, 1996Date of Patent: June 30, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Joseph A. Antonelli, Charles T. Berge, Michael J. Darmon, Christopher E. Murphy
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Patent number: 5705276Abstract: A coating composition containing about 45-80% by weight of a binder and 20-55% by weight of an organic liquid; wherein the binder contains(A) about 40-90% by weight, based on the weight of the binder, of an acrylic polymer containing polymerized hydroxyl containing monomers of the following group of hydroxy alkyl acrylate or methacrylates having 1-4 carbon atoms in the alkyl group, and polymerized alkyl acrylates and methacrylates having 1-18 carbon atoms in the alkyl groups, or styrene or any mixtures of the above and 0.1-5.0% by weight, based on the weight of the acrylic polymer, of polymerized fluoroalkyl containing monomer represented by the formula ##STR1## where R is hydrogen or an alkyl group having 1-2 carbon atoms, n is an integer of 1-11 and R.sub.f is a fluoroalkyl containing group having at least 4 carbon atoms and(B) about 10-60% by weight, based on the weight of the binder, of a fluorinated organic polyisocyanate crosslinking agent.Type: GrantFiled: October 28, 1996Date of Patent: January 6, 1998Assignee: E. I. Du Pont de Nemours and CompanyInventors: Douglas Robert Anton, Michael J. Darmon, William Frank Graham, Richard Ronald Thomas
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Patent number: 5629372Abstract: A clear coating composition containing about 45-80% by weight of a binder and 20-55% by weight of an organic liquid; wherein the binder contains(A) about 40-90% by weight, based on the weight of the binder, of an acrylic polymer containing polymerized hydroxyl containing monomers of the following group of hydroxy alkyl acrylate or methacrylates having 1-4 carbon atoms in the alkyl group, and polymerized alkyl acrylates and methacrylates having 1-18 carbon atoms in the alkyl groups, or styrene or any mixtures of the above and 0.1-5.0% by weight, based on the weight of the acrylic polymer, of polymerized fluoroalkyl containing monomer represented by the formula ##STR1## where R is hydrogen or an alkyl group having 1-2 carbon atoms, n is an integer of 1-11 and R.sub.Type: GrantFiled: October 16, 1995Date of Patent: May 13, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Douglas R. Anton, Michael J. Darmon, William F. Graham, Richard R. Thomas
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Patent number: 5627238Abstract: A coating composition containing about 45-80% by weight of a binder and 20-55% by weight of an organic liquid; wherein the binder contains(A) about 40-90% by weight, based on the weight of the binder, of an acrylic polymer containing polymerized hydroxyl containing monomers of the following group of hydroxy alkyl acrylate or methacrylates having 1-4 carbon atoms in the alkyl group, and polymerized alkyl acrylates and methacrylates having 1-18 carbon atoms in the alkyl groups, or styrene or any mixtures of the above and(B) about 10-60% by weight, based on the weight of the binder, of a fluorinated organic polyisocyanate crosslinking agent.Type: GrantFiled: October 16, 1995Date of Patent: May 6, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Douglas R. Anton, Michael J. Darmon, William F. Graham, Richard R. Thomas
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Patent number: 5605956Abstract: A fluorinated polyisocyanate which comprises an organic polyisocyanate reacted with a fluorinated monofunctional alcohol represented by the formula ##STR1## where R.sub.f is a fluoroalkyl containing group having at least 4 carbon atoms, X is a divalent radical, R.sup.3 is H or an alkyl group having 1-4 carbon atoms, n is 0-1 and m is 0-30, provided that when n is 0 then m must be equal to or greater than 1 and when m is 0, n is 1, wherein about 0.1-33 mole percent of active isocyanate groups are reacted with the fluorinated monofunctional alcohol; the fluorinated polyisocynate can be used with acrylic polymers, polyesters, alkyd resins, polyols and the like to form coating compositions, sealants, adhesives and the like.Type: GrantFiled: October 16, 1995Date of Patent: February 25, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Douglas R. Anton, Michael J. Darmon, William F. Graham, Richard R. Thomas
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Patent number: 5597874Abstract: A coating composition containing about 45-80% by weight of a binder and 20-55% by weight of an organic liquid; wherein the binder contains(A) about 40-90% by weight, based on the weight of the binder, of an acrylic polymer containing polymerized hydroxyl containing monomers of the following group of hydroxy alkyl acrylate or methacrylates having 1-4 carbon atoms in the alkyl group, and polymerized alkyl acrylates and methacrylates having 1-18 carbon atoms in the alkyl groups, or styrene or any mixtures of the above and 0.1-5.0% by weight, based on the weight of the acrylic polymer, of polymerized fluoroalkyl containing monomer represented by the formula ##STR1## where R is hydrogen or an alkyl group having 1-2 carbon atoms, n is an integer of 1-11 and R.sub.f is a fluoroalkyl containing group having at least 4 carbon atoms and(B) about 10-60% by weight, based on the weight of the binder, of a fluorinated organic polyisocyanate crosslinking agent.Type: GrantFiled: October 16, 1995Date of Patent: January 28, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Douglas R. Anton, Michael J. Darmon, William F. Graham, Richard R. Thomas
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Curable composition comprising crosslinkable polymers prepared from oligomeric chain transfer agents
Patent number: 5371151Abstract: A curable composition comprising a crosslinkable copolymer, wherein the copolymer is the free radical polymerization product of a mixture of monomers in the presence of a terminally unsaturated oligomeric chain transfer catalyst. Such compositions have advantageous properties when used in a variety of products including high performance coatings.Type: GrantFiled: August 9, 1993Date of Patent: December 6, 1994Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles T. Berge, Michael J. Darmon, Joseph A. Antonelli -
Patent number: 5362826Abstract: A method of preparing macromonomer compositions of a limited average molecular weight containing an olefinic polymerizable end group. The macromonomers may suitably comprise the polymerization product of methacrylate, methacrylonitrile, and methacrylamide monomers, derivatives thereof, and mixtures of such monomers.Type: GrantFiled: August 9, 1993Date of Patent: November 8, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Charles T. Berge, Michael J. Darmon, Joseph A. Antonelli
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Patent number: 5264530Abstract: A improved method of free radical polymerization in an aqueous system, such as an emulsion or suspension process. The polymerization is conducted in the presence of a relatively low molecular weight macromonomer such as can be made with a metal chelate chain transfer catalyst. This method is useful for reducing the molecular weight of a variety of polymers and copolymers, including acrylic and olefinic polymers.Type: GrantFiled: May 1, 1992Date of Patent: November 23, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventors: Michael J. Darmon, Charles T. Berge, Joseph A. Antonelli