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Class Information
Number: 568/722
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
Description: Compounds which include two phenolic nuclei bonded directly to the same carbon.










Sub-classes under this class:

Class Number Class Name Patents
568/723 Identical phenols 160


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8455414 Macromolecular amine-phenolic antioxidant compositions, process technology thereof, and uses thereof Jun. 4, 2013
8350096 Compound for resist and radiation-sensitive composition Jan. 8, 2013
8173351 Compound and radiation-sensitive composition May. 8, 2012
8110334 Radiation-sensitive composition Feb. 7, 2012
7989666 Method for preparing bisphenol A Aug. 2, 2011
7943795 Vitamin D receptor modulators May. 17, 2011
7932014 Photosensitive compound, photosensitive composition, resist pattern forming method, and device production process Apr. 26, 2011
7737310 Method for producing biphenols from monophenols Jun. 15, 2010
7648816 Positive resist composition, method for forming resist pattern and compound Jan. 19, 2010
7601784 Molecular compounds containing polymers having hydrogen bond sites as the constituent compounds Oct. 13, 2009
7586012 Process for recovering an adduct of a bis(4-hydroxyaryl)alkane and a phenolic compound Sep. 8, 2009
7371902 Methods for purifying p,p-bisphenol-A May. 13, 2008
7115785 Method for making salts hydroxy-substituted hydrocarbons Oct. 3, 2006
7087799 Amino group containing phenol derivative Aug. 8, 2006
7078556 Antibiotics Cyan-416 A, Cyan-416 B, Cyan-416 C, Cyan-416 D and Cyan-416 E, and ester derivatives of Cyan-416 B Jul. 18, 2006
7067704 Process for purifying bisphenol-a Jun. 27, 2006
6960641 Method of making block copolymers by solid state polymerization Nov. 1, 2005
6784228 Epoxy resin composition, cured article thereof, novel epoxy resin, novel phenol compound, and process for preparing the same Aug. 31, 2004
6620939 Method for producing bisphenol catalysts and bisphenols Sep. 16, 2003
6600004 Method of preparing polyestercarbonates Jul. 29, 2003
6433236 Acid catalyzed isomerization of substituted diaryls Aug. 13, 2002
6414106 Process for the neutralization of residual acid species in crude dihydric phenols Jul. 2, 2002
6384288 Method for the production of bis(4-hydroxyaryl)alkanes May. 7, 2002
6316677 Production process of bisphenol compounds Nov. 13, 2001
6313355 Process for the preparation of tetrabromobisphenol-A Nov. 6, 2001
6300527 Process for the preparation of tetrabromobisphenol-A Oct. 9, 2001
6162953 Process for the preparation of tetrabromobisphenol-A Dec. 19, 2000
6147169 Curable coating composition Nov. 14, 2000
6118029 Process for producing 3,3',5,5'-tetra-t butylbiphenol Sep. 12, 2000
6084136 Process for the preparation of tetrabromobisphenol-A Jul. 4, 2000
6084137 Process for the preparation of tetrabromobisphenol-A Jul. 4, 2000
6011184 Descaling of bisphenol-A reactor using water Jan. 4, 2000
6002051 Tertiary alkyl alkylphenols and organic compositions containing same Dec. 14, 1999
6002050 Process for the preparation of tetrabromobisphenol-A Dec. 14, 1999
5959158 Method and system for bisphenol a production using water Sep. 28, 1999
5874644 Method and system for bisphenol a production using controlled turbulence Feb. 23, 1999
5851837 Method for determination of salt stoichiometry Dec. 22, 1998
5777180 Process for the production of bisphenols Jul. 7, 1998
5756860 Crystalline adduct of bisphenol A and bisphenol TMC May. 26, 1998
5723689 Process for recovering bisphenols Mar. 3, 1998
5710346 2,2-bis(3,5-disubstituted-4-hydroxyphenyl) propane derivative, process for production thereof, and process for producing pyrogallol using said derivative Jan. 20, 1998
5698600 Process for the production of bisphenols with the use of new cocatalysts Dec. 16, 1997
5696295 Method for the preparation of ultra-pure bisphenol A and the use thereof Dec. 9, 1997
5675044 Process for recovery of bisphenol-A from thermoplastic polymer containing dihydric phenol units Oct. 7, 1997
5585404 3,5,3'-triiodothyronine receptor ligands Dec. 17, 1996
5541282 Aromatic polyhydroxy compounds and process for the preparation thereof Jul. 30, 1996
5527971 Process for the preparation of tetrabromobisphenol-A Jun. 18, 1996
5512700 Process for purifying a bisphenol Apr. 30, 1996
5475155 Preparation of 4,4'-dihydroxy-alpha'-dialkylstilbenes and 4, 4'-dihydroxy-alpha'-dialkylstilbenes Dec. 12, 1995
5475152 Process and composition Dec. 12, 1995

1 2 3 4










 
 
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