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Class Information
Number: 568/858
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) > Acyclic > Polyhydroxy > Preparing by alcoholysis, hydrolysis or saponification of an ester
Description: Processes which include treating an ester with a compound which contains -OH (e.g., alcohol, water, NaOH, etc.)to form the compound.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8609905 Method for producing glycerol Dec. 17, 2013
8575402 Process for the production of alkylene glycol Nov. 5, 2013
8545703 Production of glycerin from feedstock Oct. 1, 2013
8540881 Pretreatment, esterification, and transesterification of biodiesel feedstock Sep. 24, 2013
8530706 Process for the preparation of alkylene glycol Sep. 10, 2013
8497301 Hydroxyl compounds and compositions for cholesterol management and related uses Jul. 30, 2013
8329959 Process for the preparation of alkylene glycol Dec. 11, 2012
8110712 Process for the preparation of alkylene glycol Feb. 7, 2012
8093416 Method for producing fatty acid alkyl esters and/or glycerin using fat or oil Jan. 10, 2012
8049044 Remediation process and apparatus Nov. 1, 2011
8039651 Method for producing fatty acid alkyl ester and/or glycerin Oct. 18, 2011
8022257 Methods for producing polyols using crude glycerin Sep. 20, 2011
7825285 Glycol separation and purification Nov. 2, 2010
7812199 Hydroxyl compounds and compositions for cholesterol management and related uses Oct. 12, 2010
7718820 Process for the preparation of an alkanediol and a dialkyl carbonate May. 18, 2010
7674919 Process for the preparation of alkylene carbonate Mar. 9, 2010
7501531 Process for the preparation of alkylene carbonate Mar. 10, 2009
7465840 Process for the preparation of alkylene glycol Dec. 16, 2008
7462748 Process for the preparation of alkylene glycol Dec. 9, 2008
7459588 Method for producing unsaturated vicinal diol compound Dec. 2, 2008
7453014 Process for the preparation of alkylene glycol Nov. 18, 2008
7385092 Process for preparing alkanediols and alkanetriols having a vicinal diol group Jun. 10, 2008
7335799 Hydroxyl compounds and compositions for cholesterol management and related uses Feb. 26, 2008
6867337 Process for producing glycerin Mar. 15, 2005
6835858 Catalytic conversion of an organic carbonate Dec. 28, 2004
6740785 Catalytic oxidation of organic substrates by transition metal complexes in organic solvent media expanded by supercritical or subcritical carbon dioxide May. 25, 2004
6720448 Method of recovering chemical species by depolymerization of poly (ethylene terephthalate) and related use Apr. 13, 2004
6717001 Process for operating the epoxidation of ethylene Apr. 6, 2004
RE38324 Process for the preparation of hydroxy substituted gamma butyrolactones Nov. 18, 2003
6649792 Method of chemical recycling of polyethylene terephthalate waste Nov. 18, 2003
6555720 Method and system for producing 1,4-butanediol Apr. 29, 2003
6515036 Method of decomposing a polyurethane Feb. 4, 2003
6489373 Method for decomposition and recovery of polyurethane resin Dec. 3, 2002
6380419 Process for simultaneous production of ethylene glycol and carbonate ester Apr. 30, 2002
6329558 Method for producing alkylene glycol with a low carbonyl compound content Dec. 11, 2001
6281394 Method for producing vicinal diols or polyols Aug. 28, 2001
6207850 Process for co-production of dialkyl carbonate and alkanediol Mar. 27, 2001
6187972 Process for producing an alkylene glycol Feb. 13, 2001
6162940 Process for co-production of dialkyl carbonate and alkanediol Dec. 19, 2000
6080897 Method for producing monoethylene glycol Jun. 27, 2000
6023003 Process and system for recovering glycol from glycol/brine streams Feb. 8, 2000
5976202 Reaction products of polyolefins with vinyl esters and their use as fuel and lubricant additives Nov. 2, 1999
5840553 Process for preparing 1,2-propanediol derivative compounds Nov. 24, 1998
5808107 Process for the preparation of hydroxy substituted gamma butyrolactones Sep. 15, 1998
5763691 Ethylene glycol process Jun. 9, 1998
5672780 Purification of ethylene glycol recovered from polyester resins Sep. 30, 1997
5635542 Process for the production of hydroxyl-group-containing compounds from polyurethane polyurea and/or polyurea wastes Jun. 3, 1997
5583270 Process for the preparation of 1,3-butylene glycol Dec. 10, 1996
5493063 Process for optical resolution of 1,2-diol derivatives Feb. 20, 1996
5426217 Process for the production of therephthalic acid Jun. 20, 1995

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