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).

  • Publication number: 20040110876
    Abstract: 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: Application
    Filed: October 22, 2003
    Publication date: June 10, 2004
    Inventors: Hugh Stephen Laver, Peter Nesvadba
  • Publication number: 20030207967
    Abstract: 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: Application
    Filed: March 10, 2003
    Publication date: November 6, 2003
    Inventor: Hugh Stephen Laver
  • Publication number: 20030170400
    Abstract: 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: Application
    Filed: March 10, 2003
    Publication date: September 11, 2003
    Inventors: Hugh Stephen Laver, Jules Lahave, Conny Te Walvaart
  • Patent number: 6562815
    Abstract: 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-C4
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: May 13, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dario Lazzari, Thomas Bolle, Mirko Rossi, Hugh Stephen Laver
  • Publication number: 20010041758
    Abstract: 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: Application
    Filed: June 1, 2001
    Publication date: November 15, 2001
    Inventors: Hugh Stephen Laver, Peter Nesvadba
  • Publication number: 20010009939
    Abstract: 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: Application
    Filed: February 2, 1998
    Publication date: July 26, 2001
    Inventors: HUGH STEPHEN LAVER, PETER NESVADBA
  • Patent number: 6197861
    Abstract: 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: Grant
    Filed: January 27, 1999
    Date of Patent: March 6, 2001
    Assignee: Vantico Inc.
    Inventor: Hugh Stephen Laver
  • Patent number: 6169158
    Abstract: 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: Grant
    Filed: April 23, 1999
    Date of Patent: January 2, 2001
    Assignee: Vantico, Inc.
    Inventors: Christoph Rickert, Hugh Stephen Laver
  • Patent number: 6140326
    Abstract: 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: Grant
    Filed: September 14, 1998
    Date of Patent: October 31, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dario Lazzari, Thomas Bolle, Mirko Rossi, Hugh Stephen Laver
  • Patent number: 6113980
    Abstract: 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: Grant
    Filed: January 30, 1998
    Date of Patent: September 5, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Hugh Stephen Laver
  • Patent number: 6103794
    Abstract: 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: Grant
    Filed: August 13, 1998
    Date of Patent: August 15, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Hugh Stephen Laver
  • Patent number: 5912106
    Abstract: 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: Grant
    Filed: March 12, 1997
    Date of Patent: June 15, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Chia-Hu Chang, Andrew Mar, Thai Hong Nguyen, Harry Joseph Evers, Hugh Stephen Laver
  • Patent number: 5817887
    Abstract: 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: Grant
    Filed: February 7, 1995
    Date of Patent: October 6, 1998
    Assignee: Ciba-Geigy Corporation
    Inventors: David G. Leppard, Hugh Stephen Laver
  • Patent number: 5726225
    Abstract: 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: Grant
    Filed: June 10, 1996
    Date of Patent: March 10, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Adalbert Braig, Hugh Stephen Laver
  • Patent number: 5686633
    Abstract: 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: Grant
    Filed: December 31, 1991
    Date of Patent: November 11, 1997
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Eric Vieira, Hugh Stephen Laver