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Class Information
Number: 568/727
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Hydroxy containing (h of -oh may be replaced by a group ia or iia light metal) > Benzene ring containing > Phenols (h of -oh may be replaced by a group ia or iia light metal) > Polyphenols > Two phenols bonded directly to the same carbon > Identical phenols > Preparing from a phenol and an aldehyde or ketone
Description: Processes wherein the compound is produced by reacting a phenol with an aldehyde or ketone.


Sub-classes under this class:

Class Number Class Name Patents
568/728 Isopropylidene diphenol produced 168


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7321069 Process for preparing bisphenols Jan. 22, 2008
7227046 Method for making bisphenol A Jun. 5, 2007
7132575 Process for the synthesis of bisphenol Nov. 7, 2006
7112702 Process for the synthesis of bisphenol Sep. 26, 2006
7067704 Process for purifying bisphenol-a Jun. 27, 2006
7049475 Organic compound decomposing method May. 23, 2006
6995294 Method for producing bisphenol catalysts and bisphenols Feb. 7, 2006
6992228 Method for producing bisphenol catalysts and bisphenols Jan. 31, 2006
6906226 Hydroxymethyl-substituted polyfunctional phenols Jun. 14, 2005
6906227 Bisphenol phenol adducts Jun. 14, 2005
6884894 Method for producing bisphenol catalysts and bisphenols Apr. 26, 2005
6872859 Process for the preparation of bisphenols with zeolites Mar. 29, 2005
6872860 Method for producing bisphenol catalysts and bisphenols Mar. 29, 2005
6858758 Method for producing bisphenols Feb. 22, 2005
6858759 Process for manufacture of bisphenols Feb. 22, 2005
6825386 Catalyst for bisphenol compound production and process for producing bisphenol compound with the catalyst Nov. 30, 2004
6784228 Epoxy resin composition, cured article thereof, novel epoxy resin, novel phenol compound, and process for preparing the same Aug. 31, 2004
6740684 Process for producing a strong-acid cation exchange resin May. 25, 2004
6730816 High productivity bisphenol-A catalyst May. 4, 2004
6710212 Incremental flow reactor and method for parallel screening Mar. 23, 2004
6693220 Method for screening multiple reactants and catalyst systems using incremental flow reactor methodology Feb. 17, 2004
6683223 Fluidised bisphenol dust Jan. 27, 2004
6646097 Method for purifying 1,1-bis(4'-hydroxy-3'-methylphenyl)cyclohexane and methods of producing polycarbonates therefrom Nov. 11, 2003
6635788 Process for manufacture of bisphenols Oct. 21, 2003
6620939 Method for producing bisphenol catalysts and bisphenols Sep. 16, 2003
6610889 Catalytic compositions and methods for asymmetric aldol reactions Aug. 26, 2003
6586640 Decomposition of organic hydroperoxides in the presence of a particulate catalyst containing highly fluorinated polymer having sulfonic acid groups and process for the manufacture of bisphenol Jul. 1, 2003
6534686 Method for producing bisphenol catalysts and bisphenols Mar. 18, 2003
6492566 Process for the preparation of dihydroxydiphenylmethanes Dec. 10, 2002
6486222 Combination ion exchange resin bed for the synthesis of bisphenol A Nov. 26, 2002
6486363 Process for the manufacture of bis(4-hydroxyaryl)alkanes Nov. 26, 2002
6486364 Amine modified catalysts for bisphenol production Nov. 26, 2002
6465697 Catalyst promotor for the manufacture of polyphenols Oct. 15, 2002
6429343 Process for producing bisphenol a Aug. 6, 2002
6414200 Silylmethanethiols as promoters for bisphenol production Jul. 2, 2002
6329556 Process for preparing bisphenol A Dec. 11, 2001
6326461 Natural resin formulations Dec. 4, 2001
6307111 Method for continuous production of dihydroxydiarylalkanes Oct. 23, 2001
6303835 Method for recovering material values from bisphenol tars Oct. 16, 2001
6300528 Method for cleaning reactors used for acid-catalyzed production of bisphenols Oct. 9, 2001
6294702 Method for continuous production of dihydroxydiphenylalkanes Sep. 25, 2001
6288284 Method for producing bis(4-hydroxyaryl)alkanes Sep. 11, 2001
6245951 Process for cleaning bisphenol pre-reactor Jun. 12, 2001
6229037 Polyorganosiloxane catalyst May. 8, 2001
6211417 Process for preparing bis-(4-hydroxyaryl) alkanes Apr. 3, 2001
6203612 Process for cleaning bisphenol crystallizer Mar. 20, 2001
6201160 Preparation of alcohols Mar. 13, 2001
6191316 Method for processing mother liquors from the production of bisphenol Feb. 20, 2001
6143856 Process for the production of phenolic-rich pyrolysis oils for use in making phenol-formaldehyde resole resins Nov. 7, 2000
6084136 Process for the preparation of tetrabromobisphenol-A Jul. 4, 2000

1 2 3 4


 
 
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