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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 6084137 |
Process for the preparation of tetrabromobisphenol-A |
Jul. 4, 2000 |
| 6084136 |
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 |
| 5475152 |
Process and composition |
Dec. 12, 1995 |
| 5475155 |
Preparation of 4,4'-dihydroxy-alpha'-dialkylstilbenes and 4, 4'-dihydroxy-alpha'-dialkylstilbenes |
Dec. 12, 1995 |
| 5463140 |
Process for making polyphenols from ketones or aldehydes and phenols |
Oct. 31, 1995 |
| 5455282 |
Process of regenerating sulfonic acid cation exchange resins with a mercaptoethylamine or thiazolidine |
Oct. 3, 1995 |
| 5446212 |
Reduced methyl bromide process for making tetrabromobisphenol-A |
Aug. 29, 1995 |
| 5434316 |
Purification of bisphenol-A |
Jul. 18, 1995 |
| 5430199 |
Method for recovering phenol and xanthene values from bisphenol A tars |
Jul. 4, 1995 |
| 5414151 |
Method for making bisphenol |
May. 9, 1995 |
| 5414149 |
Color stable bisphenols |
May. 9, 1995 |
| 5414152 |
Method for extending the activity of acidic ion exchange catalysts |
May. 9, 1995 |
| 5399785 |
Tyrosinase activity inhibitor |
Mar. 21, 1995 |
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