Patents by Inventor Andrew Paul Sharratt
Andrew Paul Sharratt 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: 11718597Abstract: A method for preparing a tetrafluoro-1,2-epoxypropane comprising reacting a 3-acetoxy-2-bromo-tetrafluoropropane with an alkaline or alkaline earth metal hydroxide solution to provide a tetrafluoro-1,2-epoxypropane, and partially fluorinated polyethers of formula [OCRR1CR2R3]n wherein n is from 5 to 100, R is F or H, R1 is CF3, R2 is F or H and R3 is H.Type: GrantFiled: June 1, 2022Date of Patent: August 8, 2023Assignee: MEXICHEM FLUOR S.A.DE C.V.Inventors: James Henry Murray, Andrew Paul Sharratt
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Patent number: 11680219Abstract: A composition comprising a heat transfer portion and a lubricating portion, wherein the lubricating portion comprises one or more compounds according to formula (I) of the present disclosure, wherein W is H; Y is independently selected from the group consisting of F, Cl, Br and I; Z is independently selected from the group consisting of H, OH, (CW2)PCW3, CY3, OCW3, O(CW2)pCW3, OCW((CY2)mCY3)CWCW2, polyalkylene glycol and polyolester; n is an integer from 2 to 250; m is an integer from 0 to 3; and p is an integer from 0 to 9.Type: GrantFiled: October 6, 2021Date of Patent: June 20, 2023Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot Low, Andrew Paul Sharratt, Emma Jane Hodgson
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Patent number: 11649202Abstract: The present disclosure provides compounds of formula (I), and preparation method thereof, wherein W is independently selected from the group consisting of H, F, Cl, Br and I; X is independently selected from the group consisting of H, F, Cl, Br, I, CW3 and OR on the basis that at least one X is OR; R is independently selected from the group consisting of C(O)CH2)m(CF2)nY and CW2C(CW2OC(O)(CH2)m(CF2)nY)3; m is an integer from 0 to 2;15 n is an integer from 2 to 8; Y is C(Z)3; and Z is independently selected from the group consisting of H, F, Cl, Br and I. Such compounds may be utilised as lubricants, for example in heat transfer compositions.Type: GrantFiled: February 17, 2021Date of Patent: May 16, 2023Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot Low, Andrew Paul Sharratt, Emma Jane Hodgson
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Patent number: 11452990Abstract: A catalyst comprising one or more metal oxides, wherein the catalyst has a total pore volume equal to or greater than 0.3 cm3/g and a mean pore diameter greater than or equal to 90 ?, where in the pore volume is measured using N2 adsorption porosimetry and the mean pore diameter is measured using N2 BET adsorption porosimetry.Type: GrantFiled: September 7, 2017Date of Patent: September 27, 2022Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Claire Nicola Rees, Claire Elizabeth McGuinness, Andrew Paul Sharratt
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Publication number: 20220289701Abstract: A method for preparing a tetrafluoro-1,2-epoxypropane comprising reacting a 3-acetoxy-2-bromo-tetrafluoropropane with an alkaline or alkaline earth metal hydroxide solution to provide a tetrafluoro-1,2-epoxypropane, and partially fluorinated polyethers of formula [OCRR1CR2R3]n wherein n is from 5 to 100, R is F or H, R1 is CF3, R2 is F or H and R3 is H.Type: ApplicationFiled: June 1, 2022Publication date: September 15, 2022Applicant: MEXICHEM FLUOR S.A.DE C.VInventors: James Henry Murray, Andrew Paul Sharratt
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Publication number: 20220259137Abstract: A compound of formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br, and I; X is independently selected from the group consisting of H, F, Cl, Br, and I; Y is independently selected from the group consisting of F, Cl, Br, and I; Z is independently selected from the group consisting of H, F, Cl, Br, and I; n is an integer from 1 to 8; and n? is an integer from 1 to 12.Type: ApplicationFiled: May 4, 2022Publication date: August 18, 2022Inventors: Andrew Paul SHARRATT, Robert Elliott LOW, Emma Jane HODGSON
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Patent number: 11406965Abstract: A catalyst comprising chromia and at least one additional metal or compound thereof and wherein the catalyst has a total pore volume of greater than 0.3 cm3/g and the mean pore diameter is greater than or equal to 90 ?, wherein the total pore volume is measured by N2 adsorption porosimetry and the mean pore diameter is measured by N2 BET adsorption porosimetry, and wherein the at least one additional metal is selected from Li, Na, K, Ca, Mg, Cs, Sc, Al, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Rh, Ir, Ni, Pd, In, Pt, Cu, Ag, Au, Zn, La, Ce and mixtures thereof.Type: GrantFiled: September 7, 2017Date of Patent: August 9, 2022Assignee: Mexichem Fluor S.A. de C.V.Inventors: Claire Nicola Rees, Claire Elizabeth McGuinness, Andrew Paul Sharratt
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Patent number: 11377432Abstract: A method for preparing atetrafluoro-1,2-epoxypropane comprising reacting a 2-bromo-tetrafluoropropan-3-ol with an alkaline or alkaline earth metal hydroxide solution, a compound which is 2,3,3,3-tetrafluoro-1,2-epoxypropane, and partially fluorinated polyethers of formula [OCRR1CR2R3]n wherein n is from 5 to 100, R is F or H, R1 is CF3, R2 is F or H and R3 is H.Type: GrantFiled: April 27, 2018Date of Patent: July 5, 2022Assignee: MEXICHEM FLUOR S.A.DE C.V.Inventors: James Henry Murray, Andrew Paul Sharratt
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Patent number: 11358919Abstract: The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula Rf—C?CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula Rf—C?CX; and (iii) recovering the (hydro)halocarbon.Type: GrantFiled: September 11, 2020Date of Patent: June 14, 2022Assignee: Mexichem Fluor S.A. de C.V.Inventor: Andrew Paul Sharratt
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Patent number: 11352313Abstract: A compound of formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br, and I; X is independently selected from the group consisting of H, F, Cl, Br, and I; Y is independently selected from the group consisting of F, Cl, Br, and I; Z is independently selected from the group consisting of H, F, Cl, Br, and I; n is an integer from 1 to 8; and n? is an integer from 1 to 12.Type: GrantFiled: February 19, 2020Date of Patent: June 7, 2022Inventors: Andrew Paul Sharratt, Robert Elliott Low, Emma Jane Hodgson
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Patent number: 11261396Abstract: A composition comprising a heat transfer portion and a lubricating portion, wherein the lubricating portion comprises one or more compounds according to formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br and I; Y is independently selected from the group consisting of F, Cl, Br and I; Z is independently selected from the group consisting of H, OH, (CW2)PCW3, CY3, OCW3, O(CW2)pCW3, OCW((CY2)mCY3)CWCW2, polyalkylene glycol and polyolester; n is an integer from 2 to 250; m is an integer from 0 to 3; and p is an integer from 0 to 9.Type: GrantFiled: April 27, 2020Date of Patent: March 1, 2022Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot Low, Andrew Paul Sharratt, Emma Jane Hodgson
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Publication number: 20220025288Abstract: A composition comprising a heat transfer portion and a lubricating portion, wherein the lubricating portion comprises one or more compounds according to formula (I) of the present disclosure, wherein W is H; Y is independently selected from the group consisting of F, Cl, Br and I; Z is independently selected from the group consisting of H, OH, (CW2)PCW3, CY3, OCW3, 0(CW2)pCW3, OCW((CY2)mCY3)CWCW2, polyalkylene glycol and polyolester; n is an integer from 2 to 250; m is an integer from 0 to 3; and p is an integer from 0 to 9.Type: ApplicationFiled: October 6, 2021Publication date: January 27, 2022Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot LOW, Andrew Paul SHARRATT, Emma Jane HODGSON
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Publication number: 20210171434Abstract: The present disclosure provides compounds of formula (I), and preparation method thereof, wherein W is independently selected from the group consisting of H, F, Cl, Br and I; X is independently selected from the group consisting of H, F, Cl, Br, I, CW3 and OR on the basis that at least one X is OR; R is independently selected from the group consisting of C(O)CH2)m(CF2)nY and CW2C(CW2OC(O)(CH2)m(CF2)nY)3; m is an integer from 0 to 2; 15 n is an integer from 2 to 8; Y is C(Z)3; and Z is independently selected from the group consisting of H, F, Cl, Br and I. Such compounds may be utilised as lubricants, for example in heat transfer compositions.Type: ApplicationFiled: February 17, 2021Publication date: June 10, 2021Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot LOW, Andrew Paul SHARRATT, Emma Jane HODGSON
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Patent number: 10954184Abstract: The present invention provides compounds of formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br and I; 10 X is independently selected from the group consisting of H, F, Cl, Br, I, CW3 and OR on the basis that at least one X is OR; R is independently selected from the group consisting of C(O) (CH2)m(CF2)nY and CW2C(CW2OC(O)(CH2)m(CF2)nY)3; m is an integer from 0 to 2; 15 n is an integer from 2 to 8; Y is C(Z)3; and Z is independently selected from the group consisting of H, F, Cl, Br and I. Such compounds may be utilised as lubricants, for example in heat transfer compositions.Type: GrantFiled: December 7, 2016Date of Patent: March 23, 2021Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot Low, Andrew Paul Sharratt, Emma Jane Hodgson
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Publication number: 20200407296Abstract: The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula Rf—C?CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula Rf—C?CX; and (iii) recovering the (hydro)halocarbon.Type: ApplicationFiled: September 11, 2020Publication date: December 31, 2020Applicant: Mexichem Fluor S.A. de C.V.Inventor: Andrew Paul Sharratt
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Patent number: 10800720Abstract: The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula Rf—C?CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula Rf—C?CX; and (iii) recovering the (hydro)halocarbon.Type: GrantFiled: January 19, 2018Date of Patent: October 13, 2020Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventor: Andrew Paul Sharratt
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Patent number: 10766849Abstract: A compound of formula (I): wherein W is independently selected from the group consisting of H, F, CI, Br, and I; X is independently selected from the group consisting of H, F, CI, Br, and I; Y is independently selected from the group consisting of F, CI, Br, and I; Z is independently selected from the group consisting of H, F, CI, Br, and I; n is an integer from 1 to 8; and n? is an integer from 1 to 12.Type: GrantFiled: October 21, 2015Date of Patent: September 8, 2020Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Andrew Paul Sharratt, Robert Elliott Low, Emma Jane Hodgson
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Publication number: 20200255761Abstract: A composition comprising a heat transfer portion and a lubricating portion, wherein the lubricating portion comprises one or more compounds according to formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br and I; Y is independently selected from the group consisting of F, Cl, Br and I; Z is independently selected from the group consisting of H, OH, (CW2)PCW3, CY3, OCW3, 0(CW2)pCW3, OCW((CY2)mCY3)CWCW2, polyalkylene glycol and polyolester; n is an integer from 2 to 250; m is an integer from 0 to 3; and p is an integer from 0 to 9.Type: ApplicationFiled: April 27, 2020Publication date: August 13, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot LOW, Andrew Paul SHARRATT, Emma Jane HODGSON
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Publication number: 20200239403Abstract: A compound of formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br, and I; X is independently selected from the group consisting of H, F, Cl, Br, and I; Y is independently selected from the group consisting of F, Cl, Br, and I; Z is independently selected from the group consisting of H, F, Cl, Br, and I; n is an integer from 1 to 8; and n? is an integer from 1 to 12.Type: ApplicationFiled: February 19, 2020Publication date: July 30, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Andrew Paul SHARRATT, Robert Elliott LOW, Emma Jane HODGSON
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Publication number: 20200148654Abstract: A method for preparing atetrafluoro-1,2-epoxypropane comprising reacting a 2-bromo-tetrafluoropropan-3-ol with an alkaline or alkaline earth metal hydroxide solution, a compound which is 2,3,3,3-tetrafluoro-1,2-epoxypropane, and partially fluorinated polyethers of formula [OCRR1CR2R3]n wherein n is from 5 to 100, R is F or H, R1 is CF3, R2 is F or H and R3 is H.Type: ApplicationFiled: April 27, 2018Publication date: May 14, 2020Inventors: James Henry Murray, Andrew Paul Sharratt