Abstract: A closure (40) includes a body (42) with a threaded portion (44) for engaging the closure with a container. Inwards of portion (44) is a liner (46) comprising a hydrogen generating device, wherein the liner includes one layer (48) which incorporates a hydride dispersed in a polymeric matrix and, on opposite sides of layer (48) are arranged PET layers (50, 52). Layer (50) acts as a control layer to control the rate of passage of water vapour from the beverage in the container to the hydride containing layer (48) and thereby control generation of hydrogen by the hydrogen generating device. In use, water vapour passes through layer (50) and contacts the hydride associated with layer (48) which results in production of molecular hydrogen which combines with oxygen. Thereafter, a reaction between the hydrogen and oxygen takes place, catalysed by a catalyst associated with the container thereby to scavenge the oxygen.
Type:
Grant
Filed:
April 8, 2010
Date of Patent:
December 6, 2016
Assignee:
COLORMATRIX HOLDINGS, INC.
Inventors:
Adrian John Carmichael, Andrew Stuart Ovenrend, Mark Rule, Ronald James Valus, Christine Leeming, James Stuart Leeming, Steven Burgess Tattum
Abstract: The invention relates to a preservative comprising at least one isothiazolone, at least one quaternary ammonium compound, and at least one stabilizer selected from the group of sulphite salts, hydrogen sulphite salts, sulphite-releasing compounds and hydrogen-sulphite-releasing compounds, the presence of algicidal triazine being ruled out. The preservative inhibits the growth of fungi, algae and bacteria on or in alkaline coating compositions. The invention furthermore relates to a process for the preparation of the preservative, to its use in a coating composition, and to the preserved composition.
Type:
Grant
Filed:
September 21, 2006
Date of Patent:
August 24, 2010
Assignee:
Air Liquide Sante (International)
Inventors:
Petra Kolditz, Klaus Weber, Ralf Gradtke, Wolfgang Beilfuss
Abstract: Disclosed herein are a method of reductively bleaching a mineral slurry comprising adding in the mineral slurry an effective amount of a formamidine sulfinic acid (FAS) and an effective amount of a borohydride to reductively bleach the mineral slurry, compositions comprising a mineral slurry, a FAS, and a borohydride, and final products comprising a mineral obtained by the method disclosed herein.
Type:
Grant
Filed:
March 22, 2005
Date of Patent:
January 19, 2010
Assignee:
Imerys Pigments, Inc.
Inventors:
Jun Yuan, Robert J. Pruett, Larry C. Powell