Patents by Inventor Richard A. Barcock
Richard A. Barcock 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: 8362132Abstract: Aqueous coating composition having a PVC from 78 to 85% and free of non-fugitive coalescing solvent, comprising, based on the total volume solids of the dry coating unless otherwise stated, a) opacifying pigment particles comprising from 3 to 10% titanium dioxide and from 0 to 20% of hollow polymeric particles; b) non-opacifying extender particles comprising calcium magnesium carbonate and/or calcium carbonate and/or nepheline syenite and/or kaolin; c) polymer binder particles of calculated Fox Tg of from 5 to 25° C. having an acid value of from 15 to 65 mg KOH/g of polymer; d) dispersant having weight average molecular weight of at least 3500 Daltons, and wherein the dispersant demand of a mixture of the opacifying pigment particles, other than the hollow polymeric particles, of a) and the extender particles of b) is greater than 0.35 wt %, calculated on the weight of the titanium dioxide and extender particles; e) fugitive coalescing solvent.Type: GrantFiled: April 21, 2011Date of Patent: January 29, 2013Assignee: Akzo Nobel Coatings International B.V.Inventors: Stephen Arthur Wheeler, Richard Barcock, Colin Pearce, Gary Jefferson, Anthony David Woods, Simon Nicholas Emmett, Javier Perez-Amoros
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Publication number: 20110311801Abstract: An aqueous coating composition having a PVC of from 78 to 88% comprising, based on the total volume solids of the dry coating unless otherwise stated: a) opacifying pigment particles comprising i) from 3 to 10% titanium dioxide, ii) from 0 to 20% of hollow polymeric particles; b) non-opacifying extender particles comprising i) calcium magnesium carbonate, and/or ii) calcium carbonate, and/or iii) nepheline syenite, and/or iv) kaolin, wherein i)+ii)+iii)+iv)=40 to 80%, and iv) is 0 to 20%; c) polymer binder particles of calculated Fox Tg of from 25 to 70° C. having an acid value of from 15 to 65 mg KOH/g of polymer and wherein the polymer particles are derived from acrylic monomers and optionally further comprising styrene and/or its derivatives; d) dispersant having a weight average molecular weight of at least 3500 Daltons; e) fugitive coalescing solvent; wherein the composition is free of non-fugitive coalescing solvent.Type: ApplicationFiled: April 21, 2011Publication date: December 22, 2011Applicant: AKZO NOBEL COATINGS INTERNATIONAL B.V.Inventors: Stephen Arthur WHEELER, Richard Barcock, Colin Pearce, Javier PEREZ-AMOROS
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Patent number: 7976904Abstract: The invention relates to a curtain coating process for coating substrates with a stable curtain and a uniform coating at low flow rates wherein a free-falling curtain of an aqueous composition comprising a high solids content is coated onto the moving substrate at a flow rate per unit die length value (Q) equal to or inferior to 10?4 m3/(s·m), the said high solids content composition comprising a polymeric rheology modifier and a non-ionic surfactant. The invention relates in particular to a curtain coating process for coating fibrous substrates such as paper or board. The invention also relates to a coated product.Type: GrantFiled: July 27, 2005Date of Patent: July 12, 2011Assignee: Arjo Wiggins Fine Papers LimitedInventors: Richard A. Barcock, Andrew Ward-Askey
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Publication number: 20080317963Abstract: The invention relates to a curtain coating process for coating substrates with a stable curtain and a uniform coating at low flow rates wherein a free-falling curtain of an aqueous composition comprising a high solids content is coated onto the moving substrate at a flow rate per unit die length value (Q) equal to or inferior to 10?4 m2/(s·m), the said high solids content composition comprising a polymeric rheology modifier and a non-ionic surfactant. The invention relates in particular to a curtain coating process for coating fibrous substrates such as paper or board. The invention also relates to a coated product.Type: ApplicationFiled: July 27, 2005Publication date: December 25, 2008Inventors: Richard A. Barcock, Andrew Ward-Askey
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Publication number: 20080107912Abstract: The invention relates to coated products for printing on including a substrate and at least two different coatings having different properties, which comprise a low-coat layer, adjacent to the substrate, preferably pigmented, for printing properties and possibly optical properties, and a different top-coat layer, farther from the substrate, comprising optical pigments for optical effect properties, each coating having a dry coatweight ranging from 0.1 to 12 g/m2. The invention also concerns a one-pass wet-on-wet multi-layer curtain coating process for producing said coated products suitable for printing on.Type: ApplicationFiled: September 30, 2005Publication date: May 8, 2008Inventor: Richard A. Barcock
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Patent number: 6926936Abstract: An ink-jet recording material having a high ozone resistance comprises at least one ink-absorbing and at least one dye-fixing layer wherein on the top and/or bottom side of the dye-fixing layer, at least one water-soluble compound exhibiting ionic charge centres is arranged, which compound exhibits a dissociation constant in the region of 1×10?3 to 1×10?14 with a conductivity range ? of 6 to 25 ms at a temperature of 25° C.±1° C. in a 0.1 molar aqueous solution.Type: GrantFiled: May 20, 2003Date of Patent: August 9, 2005Assignee: Felix Schoeller Jr. Foto-und Spezialpapiere GmbH & Co. KGInventors: Richard A. Barcock, Douglas J. Brownbridge, Natasha M. Dimbleby, Aidan Joseph Lavery, Robert M. Phillips
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Publication number: 20040209012Abstract: An ink jet recording material comprising a support and at least one image recording layer has a protective layer on the upper side of the image recording layer, said protective layer containing an organic sulphur-containing compound which forms complexes with metal ions and a boric acid compound and wherein the image recording layer and/or the protective layer contains an organic compound having the formula MeX or MeX2 where Me is a transition metal from group VIb, VIIb, VIIIb, Ib and IIb in the Periodic Table and X is an anion of a carboxylic acid having 4 to 12 carbon atoms; the recording material has improved ozone resistance and light fastness and a higher resistance to the so-called color gamut.Type: ApplicationFiled: February 23, 2004Publication date: October 21, 2004Inventors: Richard A. Barcock, Aidan J. Lavery, Chris Cusick
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Patent number: 6726981Abstract: A recording material for the ink-jet printing method, comprising a support material and at least one polymer layer arranged on the support, and the polymer layer is an extruded layer and comprises a polyether group-containing thermoplastic copolymer.Type: GrantFiled: June 22, 2000Date of Patent: April 27, 2004Assignee: Felix Schoeller Jr. Foto-und Spezialpapiere GmbH & Co. KGInventors: Reiner Steinbeck, Detlef Wacker, Volker Brauer, Kirsten Werner, Richard Barcock
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Publication number: 20030219611Abstract: An ink-jet recording material having a high ozone resistance comprises at least one ink-absorbing and at least one dye-fixing layer wherein on the top and/or bottom side of the dye-fixing layer, at least one water-soluble compound exhibiting ionic charge centres is arranged, which compound exhibits a dissociation constant in the region of 1×10−3 to 1×10−14 with a conductivity range &lgr; of 6 to 25 ms at a temperature of 25° C.±1° C. in a 0,1 molar aqueous solution.Type: ApplicationFiled: May 20, 2003Publication date: November 27, 2003Applicant: Felix Schoeller jr. Foto-und Spezialpapiere GmbH & Co. KGInventors: Richard A. Barcock, Douglas J. Brownbridge, Natasha M. Dimbleby, Aidan Joseph Lavery, Robert M. Phillips
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Patent number: 6502935Abstract: Ink-jet recording material having a support material and pigment layers provided on the support material, and wherein the pigment layers comprise at least a lower layer containing barium sulphate and upper layer containing an aluminum oxide.Type: GrantFiled: April 28, 2000Date of Patent: January 7, 2003Assignee: Felix Schoeller jr. Foto-und Spezialpapiere GmbH & Co. KGInventors: Richard Barcock, Alastair Dodds, Kirsten Werner, Dieter Becker
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Patent number: 6479134Abstract: A recording material for the ink-jet printing method, comprising a support material and at least one polymer layer arranged on the support, and the polymer layer is an extruded layer and comprises a polyether group-containing thermoplastic copolymer.Type: GrantFiled: June 22, 2000Date of Patent: November 12, 2002Assignee: Fekix Schoeller Jr. Foto-und Spezialpapiere GmbH & Co. KGInventors: Reiner Steinbeck, Detlef Wacker, Volker Brauer, Kirsten Werner, Richard Barcock
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Patent number: 6140004Abstract: An organic photoreceptor that includes:(a) a charge transport compound having the formula ##STR1## where n is an integer between 2 and 6, inclusive; R.sup.1 and R.sup.2, independently, are an alkyl group, a cycloalkyl group, or an aryl group, or R.sup.1 and R.sup.2 combine with the nitrogen atom to form a ring;Y is a bond, a carbon atom, a --CR.sup.3 group, an aryl group, a cycloalkyl group, or a cyclosiloxyl group;R.sup.3 is hydrogen, an alkyl group, or an aryl group; andX is a linking group having the formula --(CH.sub.2).sub.m -- wherein m is an integer between 4 and 10, inclusive, and one or more of the methylene groups is optionally replaced by an oxygen atom, a carbonyl group, or an ester group;(b) a charge generating compound; and(c) an electroconductive substrate.Type: GrantFiled: December 16, 1999Date of Patent: October 31, 2000Assignee: Imation Corp.Inventors: Andrew W. Mott, David J. Owen, Nusrallah Jubran, Martin D. Attwood, Richard A. Barcock, Richard J. Ellis, Rachel J. Hobson, David R. McGill
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Patent number: 6066426Abstract: An organic photoreceptor that includes:(a) a charge transport compound having the formula ##STR1## where n is an integer between 2 and 6, inclusive; R.sup.1 and R.sup.2, independently, are an alkyl group, a cycloalkyl group, or an aryl group, or R.sup.1 and R.sup.2 combine with the nitrogen atom to form a ring;Y is a bond, a carbon atom, a --CR.sup.3 group, an aryl group, a cycloalkyl group, or a cyclosiloxyl group;R.sup.3 is hydrogen, an alkyl group, or an aryl group; andX is a linking group having the formula --(CH.sub.2).sub.m -- where m is an integer between 4 and 10, inclusive, and one or more of the methylene groups is optionally replaced by an oxygen atom, a carbonyl group, or an ester group;(b) a charge generating compound; and(c) an electroconductive substrate.Type: GrantFiled: October 14, 1998Date of Patent: May 23, 2000Assignee: Imation Corp.Inventors: Andrew W. Mott, David J. Owen, Nusrallah Jubran, Martin D. Attwood, Richard A. Barcock, Richard J. Ellis, Rachel J. Hobson, David R. McGill
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Patent number: 5773207Abstract: Tabular gain silver halide emulsions prepared in the presence of a block copolymer selected from the group consisting of:A--B, A--(B--A).sub.m, B--(A--B).sub.m, (A--B).sub.p --X, (B--A).sub.p --X, ?A--(B--A).sub.m !.sub.p --X, and ?B--(A--B).sub.m !.sub.p --Xwhere m is an integer of 1 or more, p is an integer of 3 or more, X represents a p-valent linking group, A represents a poly(tetrahydrofuran) block, and B represents a poly(ethylene oxide) block.Type: GrantFiled: December 16, 1996Date of Patent: June 30, 1998Assignee: Imation Corp.Inventors: Richard A. Barcock, Rachel J. Hobson
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Patent number: 5702879Abstract: The present invention relates to a process for preparing monodispersed tabular silver halide grain emulsions, said process comprising the following steps:(a) forming a population of silver halide nuclei in a dispersing medium having a pH lower than 3 and a pBr in the range of from 1 to 2,(b) ripening said population of silver halide nuclei in presence of a silver halide solvent,(c) performing a first growing of said silver halide nuclei at a pBr value in the range of from 1 to 2, and(d) performing a second growing of said silver halide nuclei at a value in the range of from 2 to 2.7.According to a preferred embodiment of the present invention a polyalkylene oxide-polyalkylsiloxane copolymer is present during at least one of the above mentioned steps (a) to (d). The process of the present invention enable the growth of monodispersed tabular silver halide grain emulsions having a reduced amount of non-conforming grains and a lower coefficient of variation (COV).Type: GrantFiled: February 27, 1996Date of Patent: December 30, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventor: Richard A. Barcock