Patents by Inventor Hugh Stephen Laver
Hugh Stephen Laver 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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Publication number: 20040110876Abstract: A description is given of powder coating compositions comprising a) an organic film-forming binder and b) as stabilizer at least one compound of the benzofuran-2-one type. Powder coating compositions stabilized in this way reduce the discoloration of coatings during thermal curing, especially gas oven curing.Type: ApplicationFiled: October 22, 2003Publication date: June 10, 2004Inventors: Hugh Stephen Laver, Peter Nesvadba
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Publication number: 20030207967Abstract: A powder coating composition comprising (I) an organic film-forming binder and (II) a sterically hindered amine compound selected, for example, from class (a-1); (a-1) a compound of formula (A-1) in which m1 is 1, 2 or 4, if m1 is 1, E1 is C1-C25alkyl, if m1 is 2, E1 is C1-C14alkylene, and if m1 is 4, E1 is C4-C10alkanetetratyl.Type: ApplicationFiled: March 10, 2003Publication date: November 6, 2003Inventor: Hugh Stephen Laver
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Publication number: 20030170400Abstract: The invention provides a photo-curable composition for manufacturing thick layers of homogeneous grey to black colour with excellent physical properties as required for use in high tech applications such as for example powder coatings. Such compositions were highly desirable but yet unachieved in the art. The instant composition comprises a radiation curable material as well as both an iron oxide and a phthalocyanine pigment. It has a lightness (L*) of from 0 to 90 and a chroma (C*) of from 0 to 30. The process of hardening said composition by irradiation with light of the wavelength from 150 to 600 nm is also claimed.Type: ApplicationFiled: March 10, 2003Publication date: September 11, 2003Inventors: Hugh Stephen Laver, Jules Lahave, Conny Te Walvaart
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Patent number: 6562815Abstract: The invention relates to new compounds containing 1-8 active groups of the type 3,3,6,6-polysubstituted 2-morpholinone and having the formula F (A′—Z)m—X (F), wherein m is a number from 1 to 8; X is an organic anchor group of valency m and in case that m is not 1, X may also be a direct bond, SO2, P or PO; A′ is a monovalent group of the formula E containing one linking group; Z is a direct bond, —O—, —S—, —SO—, —SO2— or —NR′14—; provided that Z is —O—, —S—, —SO—, —SO2— or —NR′14— if m is 1 and the linking group in formula E is G3 or G5; G1 is hydrogen; C1-C18alkyl; C2-C18alkyl substituted by OH and/or phenyl; oxyl; OH; C2-C12cyanoalkyl; C2-C12cyanoalkoxy; C1-C18alkoxy; C5-C12cycloalkoxy; C3-C8alkenyl; C3-C8alkynyl; C3-C8alkenyloxy; C7-C12phenylalkyl; C7-C12phenylalkyl substituted by hydroxy, C1-C4alkyl and/or C1-C4Type: GrantFiled: August 16, 2000Date of Patent: May 13, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Dario Lazzari, Thomas Bolle, Mirko Rossi, Hugh Stephen Laver
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Publication number: 20010041758Abstract: A description is given of powder coating compositions comprising a) an organic film-forming binder and b) as stabilizer at least one compound of the benzofuran-2-one type. Powder coating compositions stabilized in this way reduce the discoloration of coatings during thermal curing, especially gas oven curing.Type: ApplicationFiled: June 1, 2001Publication date: November 15, 2001Inventors: Hugh Stephen Laver, Peter Nesvadba
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Publication number: 20010009939Abstract: A description is given of powder coating compositions comprising a) an organic film-forming binder and b) as stabilizer at least one compound of the benzofuran-2-one type. Powder coating compositions stabilized in this way reduce the discoloration of coatings during thermal curing, especially gas oven curing.Type: ApplicationFiled: February 2, 1998Publication date: July 26, 2001Inventors: HUGH STEPHEN LAVER, PETER NESVADBA
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Patent number: 6197861Abstract: Paint or coating compositions are stabilized by spiroindane compounds of the following formula wherein the numbered radicals R have he meanings given in claim 1, and optionally phosphite stabilizers and phenolic antioxidants.Type: GrantFiled: January 27, 1999Date of Patent: March 6, 2001Assignee: Vantico Inc.Inventor: Hugh Stephen Laver
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Patent number: 6169158Abstract: The present invention is directed to a polyglycidyl compound having on average more than two, preferably more than two and a half, particularly preferably more than three, glycidyl groups per molecule and a Tg value (determined by DSC, heating rate=20° C./min) higher than 20° C.Type: GrantFiled: April 23, 1999Date of Patent: January 2, 2001Assignee: Vantico, Inc.Inventors: Christoph Rickert, Hugh Stephen Laver
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Patent number: 6140326Abstract: The invention relates to new compounds containing 1-8 active groups of the type 3,3,6,6-polysubstituted 2-morpholinone and having the formula F(A'--Z).sub.m --X (F),wherein m is a number from 1 to 8;X is an organic anchor group of valency m and in case that m is not 1, X may also be a direct bond, SO.sub.2, P or PO;A' is a monovalent group of the formula E ##STR1## containing one linking group; Z is a direct bond, --O--, --S--, --SO--, --SO.sub.2 -- or --NR'.sub.14 --; provided that Z is --O--, --S--, --SO--, --SO.sub.2 -- or --NR'.sub.14 -- if m is 1 and the linking group in formula E is G.sub.3 or G.sub.5 ;G.sub.1 is hydrogen; C.sub.1 -C.sub.18 alkyl; C.sub.2 -C.sub.18 alkyl substituted by OH and/or phenyl; oxyl; OH; C.sub.2 -C.sub.12 cyanoalkyl; C.sub.2 -C.sub.12 cyanoalkoxy; C.sub.1 -C.sub.18 alkoxy; C.sub.5 -C.sub.12 cycloalkoxy; C.sub.3 -C.sub.8 alkenyl; C.sub.3 -C.sub.8 alkynyl; C.sub.3 -C.sub.8 alkenyloxy; C.sub.7 -C.sub.12 phenylalkyl; C.sub.7 -C.sub.12 phenylalkyl substituted by hydroxy, C.sub.1 -C.Type: GrantFiled: September 14, 1998Date of Patent: October 31, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Dario Lazzari, Thomas Bolle, Mirko Rossi, Hugh Stephen Laver
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Patent number: 6113980Abstract: A method for improving the chargeability of a powder coating composition containing an organic film-forming binder, which method comprises incorporating into the powder coating composition at least two different compounds containing a residue of the formula (A) ##STR1## as electron donors.Type: GrantFiled: January 30, 1998Date of Patent: September 5, 2000Assignee: Ciba Specialty Chemicals CorporationInventor: Hugh Stephen Laver
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Patent number: 6103794Abstract: A description is given of powder coating compositions comprising a) an organic film-forming binder and b) as stabilizer at least one compound of formula I ##STR1## wherein the general symbols are as defined in claim 1. Using powder coating compositions stabilized in this manner reduces the discoloration of the coatings during heat-cures, in particular during gas furnace cures.Type: GrantFiled: August 13, 1998Date of Patent: August 15, 2000Assignee: Ciba Specialty Chemicals CorporationInventor: Hugh Stephen Laver
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Patent number: 5912106Abstract: The instant invention pertains to a method of improving the quality and resolution of photoimages by incorporating into the photocurable resin composition to be used a selected amount of a polymerization inhibitor so that photopolymerization of the photocurable resin is inhibited in those areas not directly impinged by light.Type: GrantFiled: March 12, 1997Date of Patent: June 15, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Chia-Hu Chang, Andrew Mar, Thai Hong Nguyen, Harry Joseph Evers, Hugh Stephen Laver
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Patent number: 5817887Abstract: A color-photographic recording material is described which contains a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in the specification.Type: GrantFiled: February 7, 1995Date of Patent: October 6, 1998Assignee: Ciba-Geigy CorporationInventors: David G. Leppard, Hugh Stephen Laver
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Patent number: 5726225Abstract: A description is given of powder coating compositions comprisinga) an organic film-forming binder, andb) as corrosion inhibitor i) at least one compound of the formula I ##STR1## in which R.sub.1 is hydrogen, C.sub.1 -C.sub.12 alkyl or C.sub.5 -C.sub.8 cycloalkyl,X is oxygen, sulfur or --NH--,Y is a direct bond, methylene, ##STR2## and Z is oxygen or ##STR3## and ii) at least one calcium-modified silicate pigment.Type: GrantFiled: June 10, 1996Date of Patent: March 10, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Adalbert Braig, Hugh Stephen Laver
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Patent number: 5686633Abstract: Inks, particularly inks for ink jet printing, contain at least one compound of the formula I ##STR1## as a stabilizer. The symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.3 ' and R.sub.4 ' are as defined in claim 1. The compounds are in part novel and are suitable for use as light stabilizers for organic materials.Type: GrantFiled: December 31, 1991Date of Patent: November 11, 1997Assignee: Ciba Specialty Chemicals CorporationInventors: Eric Vieira, Hugh Stephen Laver