Home | Links | Contact Us | More About Intellectual Property | Bookmark
Search patents:
Home Molecular Biology Organo-metal-catalysts-and-processes-for-their-preparation

 Compositions with organohalogen compound and diazonium salts as photoinitiators of epoxy compounds in photo-polymerization
OF THE INVENTION Thus, in accordance with the procedure of this invention, a mixture is formed of ...


 Clay-enzyme complexes and method for preparing same
OF THE PREFERRED EMBODIMENTS In accordance with the present invention, there are provided novel ...


 Microbiological production of ketones from C.sub.3 -C.sub.6 alkanes
OF THE PRESENT INVENTION The term "microorganism" is used herein in its broadest sense to include ...


 Method for producing microbial cells and use thereof to produce oxidation products
OF THE PRESENT INVENTION The term "microorganism" is used herein in its broadest sense to include ...


 Use of the site-specific integrating function of phage .phi.C31
OF THE INVENTION The present invention represents a significant advance in the introduction and ...


 Enzymatic method for the synthesis and separation of peptides
OF THE INVENTION The invention disclosed herein provides a procedure for driving to completion the ...


 Air lift fermentors
Having thus described the present invention what is claimed is: 1. An air lift fermentor comprising ...


 Two staged continuous fermentation process for production of heteropolysaccharide
OF THE INVENTION The first stage of the process, according to the present invention, requires ...


 Process and apparatus for the anaerobic treatment of waste water in a filter including granular material
OF THE INVENTION The drawing and the following description are of one embodiment of the present ...


 Air lift bioreactor
I claim: 1. A bioreactor/fermentor which maintains cells or immobilized cells in suspension and ...


 Organo-metal catalysts and processes for their preparation

Details
Inventors: Ozin, Geoffrey A.; Francis, Colin G.; Huber, Helmut X.;
Assignee:
Primary Examiner: Sneed; Helen M. S.
Assistant Examiner:
Attorney, Agent or Firm: Hirons, Rogers & Scott

Metal catalysts for use in known heterogeneous catalysis processes are prepared by vaporizing a metal in a low pressure environment in the vicinity of an organic liquid polymer, so that the metal contacts and becomes anchored to the polymer. The resulting products have the metal in the form of small clusters, anchored to the polymer, this form of the metal being the catalytically most active form. The organometal polymers are stable at temperatures in the -40.degree. C..fwdarw.+40.degree. C. range. Suitable polymers include poly (methyl-phenyl siloxanes) and poly (phenyl ethers). Suitable metals include titanium, chromium, molybdenum, etcetera.

DETAILED DESCRIPTION We claim: 1.
An organometallic liquid polymeric material comprising: an organic polymer which is a viscous liquid at a temperature in the range of -40.
degree.
C.
to +40.
degree.
C.
and is selected from the group consisting of polymers having carbon-carbon polymeric chains and silicone polymers, said polymer having functional groups therein and selected from aryl groups, naphthyl groups, phenanthryl groups, pyridinyl groups, olefinic unsaturation, cyclopentadienyl groups, cyclohexadienyl groups, cyclooctadienyl groups, dicyclopentadienyl groups and norbornadienyl groups; and at least one metal chemically bonded to said polymer, in substantial quantities, in the form of small stable clusters of 2-13 metal atoms, said at least one metal being selected from the group consisting of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, chromium, rhodium, palladium, platinum, tungsten, aluminum and silver; said material and said small-cluster metal form therein being stable under inert atmosphere at a temperature within the range -40.
degree.
C.
to +40.
degree.
C.
2.
An organometallic liquid polymeric material comprising: a liquid viscous polymer selected from the group consisting of poly(methylphenylsiloxanes), poly(phenylethers), polymers of styrene, polymers of chloro-substituted styrene, polymers of methyl-substituted styrene, polymers of vinyl naphthalene and polymers of conjugated or cyclic diolefins containing residual unsaturation, said polymer being a liquid viscous polymer at some temperatures within the range -40.
degree.
C.
to +40.
degree.
C.
; and at least one metal selected from the group consisting of titanium, vanadium niobium, tantalum, monybdenum, chromium, rhodium, palladium, platinum and tungsten; said metal being chemically bonded to said polymer, in substantial qunatities, in the form of metal atom clusters of from 2-13 metal atoms per cluster; the weight ratio of metal to polymer in said material being at least about 0.
026 parts by weight of metal per part by weight of polymer; said material and said small-cluster metal form therein being stable at some temperatures within the range -40



Related patents
  Compositions and methods that introduce variations in color density into cellulosic fabrics, particularly indigo dyed denim
OF THE INVENTION The stone free "stone washed" methods of the invention involve contacting clothing items or denim fabric with an aqueous solution containing a ...
  Methods for treating non-dyed and non-finished cotton woven fabric with cellulase to improve appearance and feel characteristics
OF THE PREFERRED EMBODIMENTS As noted above, the compositions and methods of this invention provide for cotton woven fabrics having improved feel and appearance. Both ...
  Detergent composition for treating cotton-containing fabrics containing a surfactant and a cellulase composition containing endolucanase III from trichoderma ssp
The present invention is directed to the use of substantially pure EG III cellulase in detergent compositions to attain improvements in softening, color retention/...
  System and method for vent hood cleaning and comprehensive bioremediation of kitchen grease
None of the prior art grease trap devices, being primarily of singular purpose in their design, offer an intentional multiplicity of functions beginning with A. A ...
  Method for deinking printed waste paper using soybean peroxidase
OF THE INVENTION As described herein, it has been discovered that newsprint such as newspapers, magazines, etc. can be reclaimed as secondary fiber for use in the ...
  Protease-Treated and purified cellulase compositions and methods for reducing backstaining during enzymatic stonewashing
OF THE INVENTION Denim that is stonewashed with a Trichoderma cellulase enzyme composition that has been subjected to a limited protease treatment and subsequent ...
  Radioiodine labeling during protein synthesis
7. A process for the preferential radioiodination of the tyrosyl-tRNA in an aminoacyl-tRNA mixture comprising the steps of: (a) forming a mixture comprising aminoacyl-tRN...
  Modified asphaltite potting composition
In accordance with the present invention, there is provided a potting compound including a modified asphaltite composition. The modified asphaltite has the following ...
  Method for removing carbon scale
What is claimed is: 1. A method for removing adherent carbon-containing scale from an object, which consists essentially of the steps of: contacting said scale with a 0.1...
  Method of purifying crude petroleum and primary refining products
We claim: 1. A method of purifying crude petroleum and primary refining products of sulfur, sulfur compounds, nitrogen- and oxygen-containing compounds and naphthenic ...

0.044

Archive: All patents - Links

Copyright (c)2006 Eipa-patents.org - All rights reserved