CELANESE GMBH

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Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07F ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM, OR TELLURIUM 169
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1124

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7319118 Food-coating composition, process for preparation thereof and useApr 14, 04Jan 15, 08[C08F]
5298644 Aryl phosphinitesMay 19, 93Mar 29, 94[C07F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2003/0149,267 Valeraldehyde and process for its preparationAbandonedNov 12, 02Aug 07, 03[C07F, C07C]
6566521 Valeraldehyde and process for its preparationExpiredNov 13, 01May 20, 03[C07F]
6274774 Process for preparing aldehydes in the presence of an aqueous phase containing rhodium and sulphonated triarylphosphines as catalystExpiredAug 30, 99Aug 14, 01[C07C]
6077968 Process for the preparation of alkyl arylphosphinitesExpiredJul 25, 97Jun 20, 00[C07F]
6069268 Catalyst, process for its production and its use for preparing vinyl acetateWithdrawnJun 03, 98May 30, 00[]
5972825 Substituted diphenyldiphosphines and a process for their preparationExpiredJun 10, 98Oct 26, 99[C07C, B01J]
5925785 Secondary and tertiary phosphines and processes for their preparationExpiredMar 20, 97Jul 20, 99[C07F]
5922634 Catalyst systems based on rhodium complexes containing diphosphine ligands and their use in the preparation of aldehydesExpiredApr 17, 97Jul 13, 99[C07F, B01J]
5874642 Bis ethers containing a 2,2'-biaryl radical and a process for their preparationExpiredJun 20, 97Feb 23, 99[C07C]
5847200 Substituted diphosphines and a process for their preparationExpiredApr 17, 97Dec 08, 98[C07F]
5840993 Water-soluble cobalt catalysts, process for their preparation and their use as hydro-formylation catalysts in a two-phase system with polyethylene glycol as the polar phaseExpiredFeb 26, 98Nov 24, 98[C07C]
5808163 Chiral tertiary phosphines and process for their preparationExpiredJul 17, 96Sep 15, 98[C07F]
5801263 Process for preparing tertiary phosphines containing phosphinate or phosphonate groups, and novel tertiary phosphines containing phosphinate groupsExpiredMay 15, 97Sep 01, 98[C07F]
5801287 Substituted diphenyldiphosphines and a process for their preparationExpiredMar 10, 97Sep 01, 98[C07C]
5801291 Process for the preparation of aldehydes by means of a catalyst system comprising rhodium and substituted diphenyldiphospinesExpiredMar 07, 97Sep 01, 98[C07C]
5789623 Process for the preparation of hydroxybiarylphosphines and novel compounds of this group of substancesExpiredJun 11, 96Aug 04, 98[C07F]
5773658 Process for the preparation of N-methylalkylaminesExpiredJun 03, 93Jun 30, 98[C07C]
5767317 Process for preparing 2,2'-bis(diphenylphosphinylmethyl)-1,1'-binaphthyls and new compounds from this class of substancesExpiredMar 27, 97Jun 16, 98[C07F]
5767333 Process for preparing 2,2'-dimethyl-1,1'binaphthyl and 2,7'-dimethyl-1,1'-binaphthylExpiredDec 08, 94Jun 16, 98[C25B, C07C]
5756848 Process for preparing secondary arylphosphine oxidesExpiredNov 04, 96May 26, 98[C07F]

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