Patents by Inventor W. Frank Richey
W. Frank Richey 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: 5730922Abstract: A laminate has at least two layers, at least one of which comprises a polymer having more than one perfluorocyclobutane group. Such polymers impart qualities of environmental or protection, chemical and solvent resistance, hydrolytic stability, lubricity, low dielectric, hydrostatic stability, weatherability, flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, and/or reduced moisture pick-up. Additionally, the coatings are optically clear, easy to apply either neat, in a solvent or otherwise, have relatively low cure temperatures for their temperature resistance, and exhibit insulating and planarizing capabilities.Type: GrantFiled: July 12, 1996Date of Patent: March 24, 1998Assignee: The Dow Chemical CompanyInventors: David A. Babb, W. Frank Richey, Katherine Clement, Edward R. Peterson, Alvin P. Kennedy, Zdravko Jezic, Larry D. Bratton, Eckel Lan, Donald J. Perettie
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Patent number: 5541282Abstract: The invention involves aromatic polyhydroxy compounds, including triaromatic bisphenols and tris-[1,1,1-(4-hydroxyphenyl)] toluenes, and a process for the preparation thereof by reacting a phenolic compound, e.g. phenol, with a suitable halo-compound, for instance 1,1-dichloroethylbenzene, 1-chlorostyrene, or mixtures thereof. The reaction may be conducted in the presence or absence of a solvent; an excess of the phenolic compound can serve as the solvent. The product is conveniently recovered by removing the by-product HCl, excess phenolic compound, excess solvent and cooling. Yields of bis-1,1-(4-hydroxyphenyl)-1-phenylethane which are greater than 90% of theoretical have been obtained by the reaction of phenol and 1,1-dichloroethylbenzene, and a large portion of the yield is para isomer.Type: GrantFiled: November 9, 1994Date of Patent: July 30, 1996Assignee: The Dow Chemical CompanyInventors: Marlin E. Walters, W. Frank Richey, Emmett L. Tasset
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Patent number: 5489623Abstract: A polymer has at least one photoactive site and more than one perfluorocyclobutane group. New monomers containing photoactive sites or photoactive precursors and at least one perfluorovinyl group are useful for making such polymers. Processes of making such polymers and the monomers from which they are made are disclosed. The polymers are useful in coatings, photoresists, and the like.Type: GrantFiled: April 25, 1995Date of Patent: February 6, 1996Assignee: The Dow Chemical CompanyInventors: David A. Babb, W. Frank Richey, Katherine S. Clement, Eric S. Moyer, Marius W. Sorenson
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Patent number: 5426164Abstract: A polymer has at least one photoactive site and more than one perfluorocyclobutane group. New monomers containing photoactive sites or photoactive precursors and at least one perfluorovinyl group are useful for making such polymers. Processes of making such polymers and the monomers from which they are made are disclosed. The polymers are useful in coatings, photoresists, and the like.Type: GrantFiled: December 24, 1992Date of Patent: June 20, 1995Assignee: The Dow Chemical CompanyInventors: David A. Babb, W. Frank Richey, Katherine S. Clement, Eric S. Moyer, Marius W. Sorenson
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Patent number: 5409777Abstract: A laminate has at least two layers, at least one of which comprises a polymer having more than one perfluorocyclobutane group. Such polymers impart qualities of enviornmental or protection, chemical and solvent resistance, hydrolytic stability, lubricity, low dielectric, hydrostatic stability, weatherability, flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, and/or reduced moisture pick-up. Additionally, the coatings are optically clear, easy to apply either neat, in a solvent or otherwise, have relatively low cure temperatures for their temperature resistance, and exhibit insulating and planarizing capabilities.Type: GrantFiled: June 15, 1993Date of Patent: April 25, 1995Assignee: The Dow Chemical CompanyInventors: Alvin P. Kennedy, Larry D. Bratton, Zdravko Jezic, Eckel R. Lane, Donald J. Perettie, W. Frank Richey, David B. Babb, Katherine S. Clement
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Patent number: 5387725Abstract: Compounds having acidic protons and a molecular structure which can delocalize the electron density of the conjugate base (target compounds) are chlorinated by contacting such compounds with a perchloroalkane and aqueous base in the presence of a phase transfer catalyst which is an tetraalkylammonium hydroxide. Chlorinated products, preferably gem-dichloro compounds, are produced. The gem-dichloro compounds are useful for alkylation of aromatic compounds. For instance fluorene is chlorinated to form 9,9-dichlorofluorene which is reacted with such compounds as phenol or aniline to form such compounds as 9,9-bis(hydroxyphenyl)fluorene, 9,9-bis(aminophenyl)fluorene, or 9-aminophenyl-9-chlorofluorene.Type: GrantFiled: July 12, 1993Date of Patent: February 7, 1995Assignee: The Dow Chemical CompanyInventors: Marlin E. Walters, W. Frank Richey, Katherine S. Clement, Steven L. Brewster, Emmett L. Tasset, Paul M. Puckett, V. Rao Durvasula, Hong A. Nguyen
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Patent number: 5382710Abstract: The invention involves aromatic polyhydroxy compounds, including triaromatic bisphenols and tris-1,1,1-(4-hydroxyphenyl)] toluenes, and a process for the preparation thereof by reacting a phenolic compound, e.g. phenol, with a suitable halo-compound, for instance 1,1-dichloroethylbenzene, 1-chlorostyrene, or mixtures thereof. The reaction may be conducted in the presence or absence of a solvent; an excess of the phenolic compound can serve as the solvent. The product is conveniently recovered by removing the by-product HCl excess phenolic compound, excess solvent and cooling. Yields of bis-1,1-(4-hydroxyphenyl)-1-phenylethane which are greater than 90% of theoretical have been obtained by the reaction of phenol and 1,1-dichloroethylbenzene, and a large portion of the yield is para isomer.Type: GrantFiled: July 30, 1992Date of Patent: January 17, 1995Assignee: The Dow Chemical CompanyInventors: Marlin E. Walters, W. Frank Richey, Emmett L. Tasset
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Patent number: 5364917Abstract: A process for preparing a polymer having perfluorocyclobutane rings by the steps of (a) contacting monomers having aromatic polyester, aromatic polyamide, or polyimide groups or combination thereof, at least two dimerizable perfluorovinyl groups; and (b) exposing the monomers to sufficient heat and for a sufficient time that a polymer containing perfluorocyclobutane rings is formed. Chain extending oligomers of polymers having poor processing characteristics by this process results in polymers which are more easily processed. For instance, perfluorocyclobutane groups formed in an extruder to chain lengthen polyimide oligomers, in effect, render polyimides extrudable. The polymer formed by the method preferably has polyimide groups. New monomers and polymers having imide and perfluorovinyl or perfluorocyclobutane structures, respectively, are prepared.Type: GrantFiled: December 1, 1993Date of Patent: November 15, 1994Assignee: The Dow Chemical CompanyInventors: David A. Babb, W. Frank Richey, Katherine S. Clement, Bobby R. Ezzell
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Patent number: 5246782Abstract: A laminate has at least two layers, at least one of which comprises a polymer having more than one perfluorocyclobutane group. Such polymers impart qualities of enviornmental or protection, chemical and solvent resistance, hydrolytic stability, lubricity, low dielectric, hydrostatic stability, weatherability, flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, and/or reduced moisture pick-up. Additionally, the coatings are optically clear, easy to apply either neat, in a solvent or otherwise, have relatively low cure temperatures for their temperature resistance, and exhibit insulating and planarizing capabilities.Type: GrantFiled: December 10, 1990Date of Patent: September 21, 1993Assignee: The Dow Chemical CompanyInventors: Alvin P. Kennedy, Larry D. Bratton, Zdravko Jezie, Eckel R. Lane, Donald J. Perettie, W. Frank Richey, David A. Babb, Katherine S. Clement
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Patent number: 5227560Abstract: Active methine compounds are chlorinated by contacting such compounds with a perchloroalkane and aqueous base in the presence of a phase transfer catalyst which is an tetraalkylonium hydroxide. Chlorinated products, preferably tertiary alkyl chloro compounds, are produced. The tertiary alkyl chloro compounds are useful in elimination reactions, preferably reactions with base, to form unsaturated compounds, particularly compounds having a vinylidene or exomethylene group.Type: GrantFiled: November 7, 1991Date of Patent: July 13, 1993Assignee: The Dow Chemical CompanyInventors: Katherine S. Clement, W. Frank Richey, Marlin E. Walters
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Patent number: 5198513Abstract: A compound having at least one perfluorovinyl group and at least one functional group is suitable for reacting with and/or forming polymers. The compound is preferably of Formula I:(G)n-R-(X--CF.dbd.CF.sub.2).sub.mwherein R represents an optionally substituted hydrocarbyl group, X represents any group which links R and a perfluorovinyl group; n is the number of G groups, m is the number of (XCF.dbd.CF.sub.2) groups; and G represents any reactive functional group or a group convertible into a reactive functional groups.A process for preparing a compound of Formula I comprises the steps of:(a) preparing a 2-halotetrafluoro compound of the Formula III:(Q--CF.sub.2 --CF.sub.2 -X).sub.m -R-(G").sub.Type: GrantFiled: March 12, 1991Date of Patent: March 30, 1993Assignee: The Dow Chemical CompanyInventors: Katherine S. Clement, David A. Babb, Bobby R. Ezzell, W. Frank Richey
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Patent number: 5159038Abstract: A process for preparing a polymer having perfluorocyclobutane rings by the steps of (a) contacting monomers having at least two dimerizable perfluorovinyl groups; and (b) exposing the monomers to sufficient heat and for a sufficient time that a polymer containing perfluorocyclobutane rings is formed. The invention includes polymers having a backbone comprising hydrocarbyl groups, perfluorocyclobutane rings and non-carbon atoms and polymers of at least 10,000 molecular weight having repeating units [O-(CFR.sub.f).sub.n -O-perfluorocyclobutane].Type: GrantFiled: March 22, 1991Date of Patent: October 27, 1992Assignee: Dow Chemical CompanyInventors: David A. Babb, W. Frank Richey, Katherine S. Clement, Bobby R. Ezzell
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Patent number: 5136110Abstract: The invention is a process for the preparation of triaromatic bisphenols reacting a phenolic compound, e.g. phenol, with a suitable halo-compound, for instance 1,1-dichloroethylbenzene, 1-chlorostyrene, or mixtures thereof. The reaction may be conducted in the presence or absence of a solvent; an excess of the phenolic compound can serve as the solvent. The product is conveniently recovered by removing the by-product HCl, excess phenolic compound, excess solvent and cooling. Yields of bis-1,1-(4-hydroxyphenyl)-1-phenylethane which are greater than 90% of theoretical have been obtained by the reaction of phenol and 1,1-dichloroethylbenzene and a large portion of the yield is para isomer.Type: GrantFiled: December 12, 1990Date of Patent: August 4, 1992Assignee: The Dow Chemical CompanyInventors: Marlin E. Walters, W. Frank Richey, Emmett L. Tasset
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Patent number: 5064518Abstract: Inorganic and organic hypohalites are used to obtain good selectivity to alpha halogenation of alkyl aromatic compounds. Alkali and alkaline earth hypohalites must be used in conjunction with a phase transfer medium. Useful organic hypohalites are the tertiary alkyl hypohalites, which are employed in the presence of free radical generating media such as light or compounds which produce free radicals thermally. At least one mole of hypohalite reactant must be used for every alpha hydrogen in the alkyl aromatic compound.A new bisphenol which contains biphenyl functionality has been made as well as an aromatic polyester derived therefrom.Type: GrantFiled: November 1, 1990Date of Patent: November 12, 1991Assignee: The Dow Chemical CompanyInventors: Marlin E. Walters, George M. St. George, W. Frank Richey
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Patent number: 5043227Abstract: A laminated structure comprising a copper metal substrate adhered to a polyimide polymer by the use of first and second adhesive resin layers.Type: GrantFiled: May 15, 1989Date of Patent: August 27, 1991Assignee: The Dow Chemical CompanyInventors: William O. Perry, W. Frank Richey
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Patent number: 5037919Abstract: A compound having at least one perfluorovinyl group and at least one functional group is suitable for reacting with and/or forming polymers. The compound is preferably of Formula I:(G)n--R--(X--CF.dbd.CF.sub.2).sub.mwherein R represents an optionally substituted hydrocarbyl group, X represents any group which links R and a perfluorovinyl group; n is the number of G groups, m is the number of (XCF.dbd.CF.sub.2) groups; and G represents any reactive functional group of a group convertible into a reactive functional groups.A process for preparing a compound of Formula I comprises the steps of:(a) preparing a 2-halotetrafluoro compound of the formula III:(Q--CF.sub.2 --CF.sub.2 X).sub.m --R--(G").sub.Type: GrantFiled: June 9, 1989Date of Patent: August 6, 1991Assignee: The Dow Chemical CompanyInventors: Katherine S. Clement, Bobby R. Ezzell, David A. Babb, W. Frank Richey
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Patent number: 5037917Abstract: A process for preparing a polymer having perfluorocyclobutane rings by the steps of (a) contacting monomers having at least two dimerizable perfluorovinyl groups; and (b) exposing the monomers to sufficient heat and for a sufficient time that a polymer containing perfluorocyclobutane rings is formed. The invention includes polymers having a backbone comprising hydrocarbyl groups, perfluorocyclobutane rings and non-carbon atoms and polymers of at least 10,000 molecular weight having repeating units [O-(CFR.sub.f).sub.n -O-perfluorocyclobutane].Type: GrantFiled: June 9, 1989Date of Patent: August 6, 1991Assignee: The Dow Chemical CompanyInventors: David A. Babb, Katherine S. Clement, W. Frank Richey, Bobby R. Ezzell
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Patent number: 4992151Abstract: Inorganic and organic hypohalites are used to obtain good selectivity to alpha halogenation of alkyl aromatic compounds. Alkali and alkaline earth hypohalites must be used in conjunction with a phase transfer medium. Useful organic hypohalites are the tertiary alkyl hypohalites, which are employed in the presence of free radical generating media such as light or compounds which produce free radicals thermally. At least one mole of hypohalite reactant must be used for every alpha hydrogen in the alkyl aromatic compound.A new bisphenol which contains biphenyl functionality has been made as well as an aromatic polyester derived therefrom.Type: GrantFiled: January 29, 1990Date of Patent: February 12, 1991Assignee: The Dow Chemical CompanyInventors: Marlin E. Walters, George M. St. George, W. Frank Richey