Patents by Inventor Keith M Blackwood
Keith M Blackwood 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: 7767229Abstract: A poly(diallylamine)polymer pharmaceutical composition or pharmaceutical derivate used to sequester bile acid and/or to reduce serum cholesterol levels. The polymer is derived from a monomer of formula Ia, where R6 is a bridging group of valency r, and r is an integer of 3 or greater to provide a cross linked polymer, and all diallyl nitrogen atoms are linked to at least two further diallyl nitrogen atoms.Type: GrantFiled: November 10, 2000Date of Patent: August 3, 2010Inventors: Paul E Milne, John W Goodby, Alan W. Hall, Keith M Blackwood
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Patent number: 7026419Abstract: An adhesive or sealant composition comprising a compound of formula (I) provided that at least one of (a) R1 and R6 or (b) R2 and R3 or (c) R4 and R5 includes an electron withdrawing group; and where necessary, a polymerisation initiator. Novel compounds of formula (I) are also described and claimed. Adhesive compositions can be used to bond for example glass and metal surfaces. Certain biocompatible adhesives for medical applications are included.Type: GrantFiled: December 11, 2003Date of Patent: April 11, 2006Assignee: Qinetiq LimitedInventors: Paul E Milne, Keith M Blackwood, Alan W Hall, John W Goodby
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Patent number: 6951700Abstract: The use of a compound of formula (A), which comprises a group of sub-formula (I) where R1, R2, R3, R4, R5, R6, X1 and Y1 are various specified organic groups wherein at least one of said groups has sufficient electron whitdrawing properties to activate the multiple bonds to polymerisation, in a stereolithographic composition. Stereolithographic applications of these compounds are also described and claimed.Type: GrantFiled: November 30, 2000Date of Patent: October 4, 2005Assignee: Qinetiq LimitedInventors: John W Goodby, Alan W Hall, Keith M Blackwood, Paul E Y Milne, Andrew G Biggs, Ryan M Heath, Robert W Bannister
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Publication number: 20040127664Abstract: An adhesive or sealant composition comprising a compound of formula (I) provided that at least one of (a) R1 and R6 or (b) R2 and R3 or (c) R4 and R5 includes an electron withdrawing group; and where necessary, a polymerisation initiator. Novel compounds of formula (I) are also described and claimed. Adhesive compositions can be used to bond for example glass and metal surfaces. Certain biocompatible adhesives for medical applications are included.Type: ApplicationFiled: December 11, 2003Publication date: July 1, 2004Applicant: Qinetiq LimitedInventors: Paul E. Milne, Keith M. Blackwood, Alan W. Hall, John W. Goodby
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Patent number: 6703467Abstract: An adhesive or sealant composition comprising a compound of formula (I) provided that at least one of (a) R1 and R6 or (b) R2 and R3 or (c) R4 and R5 includes an electron withdrawing group; and where necessary, a polymerization initiator. Novel compounds of formula (I) are also described and claimed. Adhesive compositions can be used to bond for example glass and metal surfaces. Certain biocompatible adhesives for medical applications are included.Type: GrantFiled: January 3, 2001Date of Patent: March 9, 2004Assignee: Qinetiq LimitedInventors: Paul E Milne, Keith M Blackwood, Alan W Hall, John W Goodby
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Publication number: 20030157435Abstract: The use of a compound of formula (A), which comprises a group of sub-formula (I) where R1, R2, R3, R4, R5, R6, X1 and Y1 are various specified organic groups wherein at least one of said groups has sufficient electron whitdrawing properties to activate the multiple bonds to polymerisation, in a stereolithographic composition. Stereolithographic applications of these compounds are also described and claimed.Type: ApplicationFiled: November 6, 2002Publication date: August 21, 2003Inventors: John W Goodby, Alan W Hall, Keith M Blackwood, Paul E Y Milne, Andrew G Biggs, Ryan M Heath, Robert W Bannister
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Patent number: 6608120Abstract: Compounds of the formula: having two double bonds which are activated so that they will take part in a polymerization reaction, the double bonds being sufficiently close together to ensure that cyclopolymerization will preferentially occur. These compounds are used as monomers which preferentially are cyclopolymerized under the influence of ultraviolet or thermal radiation in the production of network polymers, for example coatings or binders.Type: GrantFiled: January 17, 2001Date of Patent: August 19, 2003Assignee: Qinetiq LimitedInventors: Paul E Milne, Keith M Blackwood, Steven M Kelly, Alan W Hall, John W Goodby
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Patent number: 6559261Abstract: A method for producing a polymeric material, said method comprising subjecting a starting material which includes two multiple bonds which are activated so that they will take part in a polymerisation reaction and wherein the multiple bonds are sufficiently close togeter to ensure that cyclopolymerisation will preferentially occur; to suitable conditions under which said polymerisation reaction will occur, provided that the starting marerial is other than triallyamine hydrochloride. The method can be used to produce polymers for various processes including adhesives, network polymers, liquid crystal polymers etc.Type: GrantFiled: January 17, 2001Date of Patent: May 6, 2003Assignee: QinetiQ LimitedInventors: Paul E Milne, Keith M Blackwood
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Patent number: 6312770Abstract: This invention describes a method for the loading and alignment of elastomers in electro-optic and electro-active devices. It comprises the in-situ polymerization between substrates of liquid crystal monomers in the presence of cross-linking reagents. It also describes the production of free-standing elastomer films.Type: GrantFiled: April 12, 1999Date of Patent: November 6, 2001Assignees: The Secretary of State for Defence in Her Brittanic Majesty's Government of the United Kingdom of Great Britian and Northern Ireland, Defence Research AgencyInventors: Ian C Sage, Keith M Blackwood, Michelle Jones, Mark A Verrall, David Coates
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Patent number: 6180024Abstract: Methods, based on the Wittig-Horner reaction, are provided for the synthesis of compounds of formula (I) where m is from 5-150, X and Y are independently selected from: CN, H, OH, COCH3, CO2H, CO2H, CO2R1, where R1 is C1-12 alkyl, NCS, SCN, CF3, CH2X where X is F, Cl, Br, OH, CHF2 and formula (IB), where J for each X and Y group is independently selected from: CH2, single covalent bond, OOC, CO2, O, CH2O, OCH2, CH2CO2, CH2OOC; p=1-20; L for each X and Y group is independently selected from: O, CH2OCO, CO2, S, NH; (a) is defined by formula (IC), where rings A, B and C are independently selected from phenyl, cyclohexyl, pyridine and pyrimidine and may be independently of each other substituted with at least one of Cl or F; linking groups A and B may be selected from single bond, CO2, OOC, CH2O, OCH2, CH2CH2, C≡C; Z is selected from CN, F, Cl, NO2, R, OR, CO2R, CF3, OOCR, NCS, SCN, where R=straight chain or branched chain alkyl and may include from 1-16 carbon atoms and inclType: GrantFiled: February 26, 1999Date of Patent: January 30, 2001Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Keith M Blackwood, Michelle Jones, David Lacey, Alan W Hall, Kenneth J Toyne, Steven Pringle
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Patent number: 6030668Abstract: Compounds of formula ##STR1## are provided which may be used in a variety of devices including liquid crystal devices, piezoelectric devices, pyroelectric devices and in optical recording media, where m=at least 5; and R.sub.x, R.sub.y and R.sub.z are independently from formula (IA), ##STR2## where Y is selected from COO, OCO, O, S, CHOH, CHF, CH.sub.2 ; Q=(CH.sub.2).sub.n wherein one or more non-adjacent methylenes may be replaced by O and n=1-20; Z is selected from O, S, a single covalent bond, COO, a OCO; when Y is CH.sub.2 then n may also be 0; formula (IB) is ##STR3## and represents any mesogenic group; and R.sub.x, R.sub.y and R.sub.z are also independently selected from H, OH, OCOR.sup.1, COOH, CO.sub.2 R.sup.1 (CH.sub.2).sub.p OH, (CH.sub.2).sub.p CO.sub.2 H, --(CH.sub.2).sub.p OR.sup.1 or --(CH.sub.2).sub.p CO.sub.2 R.sup.1 and p=1-20, R.sup.1 =H or C.sub.1-16 alkyl, when R.sup.1 =C.sub.2-16 alkyl the terminal CH.sub.3 group may be replaced by Br or Cl; provided that at least one of and R.sub.x, R.Type: GrantFiled: May 26, 1998Date of Patent: February 29, 2000Assignee: The Secretary of State for Defence, in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Alan W Hall, David Lacey, Ian C Sage, Keith M Blackwood, Michelle Jones
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Patent number: 6010641Abstract: Methods for loading and alignment of liquid crystal polymers in electro-optic and electro-active devices comprise in-situ polymerisation between substrates of monomer material in the presence of a cationic initiator. This allows for the synthesis of liquid crystal polymers containing polyether backbones.Type: GrantFiled: January 20, 1998Date of Patent: January 4, 2000Assignee: The Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Ian C Sage, Keith M Blackwood, Mark A Verrall, David Coates, David R Beattie