Patents by Inventor Robert M. Blankenship
Robert M. Blankenship 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: 6787601Abstract: Disclosed is a method of preparing emulsion polymers and a method of preparing porous dielectric materials using the emulsion polymers.Type: GrantFiled: September 22, 2001Date of Patent: September 7, 2004Assignee: Shipley Company, L.L.C.Inventors: Angelo A. Lamola, Robert M. Blankenship
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Patent number: 6713552Abstract: An aqueous composition suitable for use when dry as a pressure sensitive adhesive including an aqueous emulsion polymer formed by the free radical polymerization of at least one ethylenically unsaturated monomer at a reaction temperature lower than 100° C. in the presence of 20-1500 ppm, based on the total weight of the monomer, of an N-oxyl radical, the polymer having a glass transition temperature (Tg) from −80° C. to 0° C. is provided. Also provided is a method for preparing the emulsion polymer and a method for coating a substrate with an aqueous composition to provide a pressure sensitive adhesive layer on a substrate.Type: GrantFiled: July 20, 2000Date of Patent: March 30, 2004Assignee: Rohm and Haas CompanyInventors: Patricia Marie Lesko, Robert M. Blankenship
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Patent number: 6602804Abstract: Porous dielectric materials having low dielectric constants useful in electronic component manufacture are disclosed along with methods of preparing the porous dielectric materials. Also disclosed are methods of forming integrated circuits containing such porous dielectric materials.Type: GrantFiled: July 1, 2002Date of Patent: August 5, 2003Assignee: Shipley Company, L.L.C.Inventors: Craig S. Allen, Nikoi Annan, Robert M. Blankenship, Michael K. Gallagher, Robert H. Gore, Angelo A. Lamola, Yujian You
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Publication number: 20030007990Abstract: A method of forming, by polymerization in an aqueous dispersion at pressures in excess of one atmosphere, a plurality of porous particles having at least one polymeric phase and at least one pore filling phase, wherein the pore filling phase includes a pore filler and a fugitive substance, is disclosed. Replacement of the fugitive substance with a replacement gas is further disclosed. Porous particles having a polymeric phase and pores containing a pore filler, and, optionally, a gaseous phase are also disclosed, as are their aqueous dispersions.Type: ApplicationFiled: December 13, 2001Publication date: January 9, 2003Inventors: Robert M. Blankenship, Richard R. Clikeman
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Publication number: 20030004218Abstract: Porous dielectric materials having low dielectric constants useful in electronic component manufacture are disclosed along with methods of preparing the porous dielectric materials. Also disclosed are methods of forming integrated circuits containing such porous dielectric materials.Type: ApplicationFiled: July 1, 2002Publication date: January 2, 2003Applicant: Shipley Company, L.L.C.Inventors: Craig S. Allen, Nikoi Annan, Robert M. Blankenship, Michael K. Gallagher, Robert H. Gore, Angelo A. Lamola, Yujian You
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Publication number: 20020173587Abstract: Disclosed is a method of preparing emulsion polymers and a method of preparing porous dielectric materials using the emulsion polymers.Type: ApplicationFiled: September 22, 2001Publication date: November 21, 2002Applicant: Shipley Company, L.L.C.Inventors: Angelo A. Lamola, Robert M. Blankenship
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Patent number: 6420441Abstract: Porous dielectric materials having low dielectric constants useful in electronic component manufacture are disclosed along with methods of preparing the porous dielectric materials. Also disclosed are methods of forming integrated circuits containing such porous dielectric materials.Type: GrantFiled: December 10, 1999Date of Patent: July 16, 2002Assignee: Shipley Company, L.L.C.Inventors: Craig S. Allen, Nikoi Annan, Robert M. Blankenship, Michael K. Gallagher, Robert H. Gore, Angelo A. Lamola, Yujian You
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Patent number: 5545695Abstract: A multistaged polymer containing a hydrophilic core fully encapsulated with a hydrophobic shell without a tiecoat layer is disclosed. A method is also disclosed for encapsulating hydrophilic polymers including the steps of:(1) emulsion polymerizing a hydrophilic core polymer from about 5% by weight to about 100% by weight, based on the total weight of the core polymer, of a hydrophilic monoethylenically unsaturated monomer and from 0% by weight to about 95% by weight, based on the total weight of the core polymer, of at least one nonionic monoethylenically unsaturated monomer;(2) emulsion polymerizing, in the presence of the core polymer, at least one shell polymer from about 90% by weight to about 99.9% by weight, based on the total weight of shell polymer, of at least one nonionic monoethylenically unsaturated monomer and from about 0.Type: GrantFiled: June 6, 1995Date of Patent: August 13, 1996Assignee: Rohm and Haas CompanyInventor: Robert M. Blankenship
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Patent number: 5527613Abstract: The present invention is concerned with core and shell polymeric particles having microvoids in the core and one or more channels connecting the microvoids to the exterior of the particle. These particles, or LCAPs are produced by forming a core of polymeric acid, encasing the core in a shell polymer permeable to base, and then neutralizing the core such that the core swells, causing the shell to "explode" in a controlled fashion. This controlled explosion causes channels to form in the shell.These particles can be used as control release devices for target compounds, to impart reinforcing properties to acrylic films, as an opacifying agent in coating compositions, and as a supplement or replacement of part or all of the pigmentary material or extenders that would otherwise be used in such coating compositions.Type: GrantFiled: April 25, 1994Date of Patent: June 18, 1996Assignee: Rohm and Haas CompanyInventors: Robert M. Blankenship, Ronald W. Novak, Clarence J. Neyhart, Martin Vogel
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Patent number: 5516453Abstract: A method for preparing a stable ambient-curing composition containing an active methylene-functional compound and an active methylene-reactive component is provided. A first component bearing at least two active methylene-functional groups is prepared and adjusted to a pH higher than about 7 with a permanent base, after which the pH of the first component is adjusted to a pH lower than about 4 with a volatile acid. Finally an active methylene-reactive component is admixed with the pH-adjusted first component at certain ratios to provide the stable ambient-curing composition.Type: GrantFiled: February 19, 1993Date of Patent: May 14, 1996Assignee: Rohm and Haas CompanyInventor: Robert M. Blankenship
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Patent number: 5510422Abstract: The present invention is concerned with core and shell polymeric particles having microvoids in the core and one or more channels connecting the microvoids to the exterior of the particle. These particles, or LCAPs are produced by forming a core of polymeric acid, encasing the core in a shell polymer permeable to base, and then neutralizing the core such that the core swells, causing the shell to "explode" in a controlled fashion. This controlled explosion causes channels to form in the shell.These particles can be used as control release devices for target compounds, to impart reinforcing properties to acrylic films, as an opacifying agent in coating compositions, and as a supplement or replacement of part or all of the pigmentary material or extenders that would otherwise be used in such coating compositions.Type: GrantFiled: June 6, 1995Date of Patent: April 23, 1996Assignee: Rohm and Haas CompanyInventors: Robert M. Blankenship, Ronald W. Novak, Clarence J. Neyhart, Martin Vogel, Alexander Kowalski
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Patent number: 5494971Abstract: A multistaged polymer containing a hydrophilic core fully encapsulated with a hydrophobic shell without a tiecoat layer is disclosed. A method is also disclosed for encapsulating hydrophilic polymers including the steps of:(1) emulsion polymerizing a hydrophilic core polymer from about 5% by weight to about 100% by weight, based on the total weight of the core polymer, of a hydrophilic monoethylenically unsaturated monomer and from 0% by weight to about 95% by weight, based on the total weight of the core polymer, of at least one nonionic monoethylenically unsaturated monomer;(2) emulsion polymerizing, in the presence of the core polymer, at least one shell polymer from about 90% by weight to about 99.9% by weight, based on the total weight of shell polymer, of at least one nonionic monoethylenically unsaturated monomer and from about 0.Type: GrantFiled: August 12, 1994Date of Patent: February 27, 1996Assignee: Rohm and Haas CompanyInventor: Robert M. Blankenship
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Patent number: 5304707Abstract: A method for solidification or encapsulation of compositions containing a substantially continuous aqueous phase comprising uniformly incorporating into said compositions core-shell polymer particles and subsequently neutralizing said polymer particles by incorporating into said compositions an organic or inorganic base. The neutralized polymer particles swell and absorb substantially all of said aqueous phase.Type: GrantFiled: April 16, 1993Date of Patent: April 19, 1994Assignee: Rohm and Haas CompanyInventors: Robert M. Blankenship, Clarence Neyhart, Ronald W. Novak
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Patent number: 5294687Abstract: Monoalkyl phosphinate and monoalkyl phosphonate derivatives of low molecular weight water soluble polymers are preferentially prepared by copolymerizing hypophosphorous acid, monoethylenically unsaturated monocarboxylic acid(s) and an effective amount of a C.sub.3 -C.sub.8 monoethylenically unsaturated dicarboxylic acid.Type: GrantFiled: August 2, 1993Date of Patent: March 15, 1994Assignee: Rohm and Haas CompanyInventors: Robert M. Blankenship, Scott L. Egolf
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Patent number: 5256746Abstract: Monoalkyl phosphinate and monoalkyl phosphonate derivatives of low molecular weight water soluble polymers are preferentially prepared by copolymerizing hypophosphorous acid, monoethylenically unsaturated monocarboxylic acid(s) and an effective amount of a C.sub.3 -C.sub.8 monoethylenically unsaturated dicarboxylic acid.Type: GrantFiled: April 25, 1991Date of Patent: October 26, 1993Assignee: Rohm and Haas CompanyInventors: Robert M. Blankenship, Scott L. Egolf
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Patent number: 5030666Abstract: Binder, coating, and adhesive compositions having surprising film build, flow, leveling, and adhesive wet tack are provided by an aqueous dispersion comprising polymer particles having a central core surrounded by lobes. Also disclosed are the uses and process of preparation of these unique particles.Type: GrantFiled: September 12, 1988Date of Patent: July 9, 1991Assignee: Rohm and Haas CompanyInventors: Alexander Kowalski, Joseph J. Wilczynski, Robert M. Blankenship, Chuen-Shyong Chou
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Patent number: 4791151Abstract: Binder, coating, and adhesive compositions having surprising film build, flow, leveling, and adhesive wet tack are provided by an aqueous dispersion comprising polymer particles having a central core surrounded by lobes. Also disclsoed are the uses and process of preparation of these unique particles.Type: GrantFiled: July 14, 1986Date of Patent: December 13, 1988Assignee: Rohm and Haas CompanyInventors: Alexander Kowalski, Joseph Wilczynski, Robert M. Blankenship, Cheun-Shyong Chou
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Patent number: 4594363Abstract: Process for making core-sheath polymer particles containing voids, said particles useful for opacifying, comprising (A) emulsion polymerizing a core from a core monomer system comprised of at least one ethylenically unsaturated monomer containing acid functionality; (B) encapsulating said core with a hard sheath by emulsion polymerizing a sheath monomer system in the presence of said core, said sheath permitting penetration of fixed or permanent bases; (C) swelling at elevated temperature the resultant core-sheath polymer particles with fixed or permanent base so as to produce a dispersion of particles which, when dried, contain a microvoid which causes opacity in compositions in which they are contained, provided that either (1) said sheath comprises at least about 1% acid functional monomer or (2) said swelling takes place in the presence of solvent.Compositions comprising said core-sheath polymer particles are also disclosed.Type: GrantFiled: January 11, 1985Date of Patent: June 10, 1986Assignee: Rohm and Haas CompanyInventors: Robert M. Blankenship, Alexander Kowalski
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Patent number: 4468498Abstract: The present invention is concerned with the production and use of water-insoluble particulate heteropolymers made by sequential emulsion polymerization in dispersed particles of which a "core" of a polymeric acid is at least partially encased in a "sheath" polymer that is permeable to a volatile base, such as ammonia or an organic amine, adapted to cause swelling of the core by neutralization. The aqueous dispersion of the acid-containing core/sheath particles is useful in making water-base coating compositions wherein it may serve as the binder or as a part thereof. In that use, the heteropolymer dispersion serves to provide desirable rheological control of the coating compositions when a volatile base is used to at least partially (to a pH of at least 6) neutralize the heteropolymer. Thus, the heteropolymer dispersion can serve as a thickener, or part thereof in coating compositions, such as water-base paints.Type: GrantFiled: February 25, 1982Date of Patent: August 28, 1984Assignee: Rohm and Haas CompanyInventors: Alexander Kowalski, Martin Vogel, Robert M. Blankenship
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Patent number: 4427836Abstract: The present invention is concerned with the production and use of water-insoluble particulate heteropolymers made by sequential emulsion polymerization in dispersed particles of which a "core" of a polymeric acid is at least partially encased in a "sheath" polymer that is permeable to a volatile base, such as ammonia or an organic amine, adapted to cause swelling of the core by neutralization. The aqueous dispersion of the acid-containing core/sheath particles is useful in making water-base coating compositions wherein it may serve as an opacifying agent when a volatile base is used to at least partially (to a pH of at least 6) neutralize the heteropolymer, microvoids being formed in cores of the swollen particles in the film during the drying thereof.Type: GrantFiled: February 25, 1982Date of Patent: January 24, 1984Assignee: Rohm and Haas CompanyInventors: Alexander Kowalski, Martin Vogel, Robert M. Blankenship