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Class Information
Number: 568/594
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Ethers > Plural oxygens bonded directly to the same carbon (e.g., acetals, ketals, orthoesters, orthocarbonates, etc.) > Acyclic
Description: Compounds which do not include a ring.

Sub-classes under this class:

Class Number Class Name Patents
568/595 At least three oxygens bonded directly to the same carbon ( e.g., orthoesters, etc.) 25
568/600 At least three oxygens containing 45
568/596 Carbon to carbon unsaturation containing 80
568/604 Halogen containing 79
568/605 Ion exchange resin or sulfuric acid utilized 18
568/599 One of the plural oxygens is in a hydroxy group (i.e., hemiacetals and hemiketals, wherein h of -oh may be replaced by a group ia or iia light metal) 11

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8476477 Process of oxidative conversion of methanol Jul. 2, 2013
8344183 Method for synthesizing polyoxymethylene dimethyl ethers by ionic liquid catalysis Jan. 1, 2013
8288596 Manufacture of purified alcohols Oct. 16, 2012
8158564 Alkyl acetal compound, process for producing the same, and lubricating oil composition Apr. 17, 2012
7759525 Process for preparing partial oxidation products of lower alcohols by direct oxidation of a lower alcohol and catalysts for use in that process Jul. 20, 2010
7700814 Manufacture of alcohols Apr. 20, 2010
7560599 Method for preparing polymethoxymethylal Jul. 14, 2009
7534922 Processes for the manufacture of acetals May. 19, 2009
7488851 Industrial process for acetals production in a simulated moving bed reactor Feb. 10, 2009
7432404 Process for removal of acrolein from acrylonitrile product streams Oct. 7, 2008
7232639 Monomer having fluorine-containing acetal or ketal structure, polymer thereof, and chemical-amplification-type resist composition as well as process for formation of pattern with use of the sa Jun. 19, 2007
7208640 Process for isolating highly pure 2-methoxypropene Apr. 24, 2007
7196231 Process for removal of acrolein from acrylonitrile product streams Mar. 27, 2007
7122693 Acetaldehyde acetal compounds, their synthesis, and uses thereof Oct. 17, 2006
7022665 Acetals of 2,4,7-decatrienal as perfuming or flavoring ingredients Apr. 4, 2006
7015363 Process for producing ether compound Mar. 21, 2006
6956134 Oxidation of methanol and/or dimethyl ether using supported molybdenum-containing heteropolyacid catalysts Oct. 18, 2005
6919480 Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers Jul. 19, 2005
6858761 Process for preserving resin catalyst for addition reaction of alkylene oxide and utilization of this process Feb. 22, 2005
6806392 Process and manufacturing equipment for preparing acetals and ketals Oct. 19, 2004
6747174 Processes for the preparation of fluorinated acyl fluorides and fluorinated vinyl ethers Jun. 8, 2004
6512146 Process for preparing a dialkyl acetal of a C8 to C30 aldehyde Jan. 28, 2003
6486362 Process for producing oxygen-containing compounds containing at least one oxygen atom bonded to two distinct carbon atoms which are not bonded together and not including a multiple bond Nov. 26, 2002
6403841 Process for preparing partial oxidates of lower alcohols Jun. 11, 2002
6160185 Process for purification of methylal Dec. 12, 2000
6037482 Process for catalytic addition of nucleophiles to alkynes or allenes Mar. 14, 2000
5990360 Process for the catalytic dealkoxylation of 1,1,3-trialkoxy-2-methyl-butane Nov. 23, 1999
5852208 Method of producing compounds containing acyloxyalkoxy groups from alcohols Dec. 22, 1998
5798434 Monomer mixture and method for the preparation thereof Aug. 25, 1998
5792876 Process for producing acetals Aug. 11, 1998
5783732 2:2 mixed Fluoro-, and fluoronitroalkyl orthocarbonates Jul. 21, 1998
5672779 Ester compound, active agent for controlling noxious insect pests containing the same as active ingredient, intermediate for production of the ester compound and process for producing the inte Sep. 30, 1997
5631406 Chemical compounds May. 20, 1997
5565585 Azido diacetal propane derivatives Oct. 15, 1996
5550299 Method of preparing 1.1-dialkoxycycloalkanes Aug. 27, 1996
5527969 Process for preparing acetaldehyde diethyl acetal Jun. 18, 1996
5449836 Process for the preparation of vitamin A and intermediate compounds which are useful for this process Sep. 12, 1995
5399778 Process for the preparation of ketals Mar. 21, 1995
5393867 Polyether polymers derived from 3,4-epxoy-1-butene Feb. 28, 1995
5362918 Process for producing acetaldehyde dimethylacetal Nov. 8, 1994
5350878 Fluorinated compounds containing hetero atoms and polymers thereof Sep. 27, 1994
5290912 Process for producing a polyoxyalkylene compound Mar. 1, 1994
5254744 Preparation and purification of poly(tetramethylene ether) formal glycols and poly(oxybutylene formal) glycols Oct. 19, 1993
5155281 Preparing dichloroformals Oct. 13, 1992
5132465 Oxidation of primary alcohols to aldehydes using transition metal phthalocyanines as catalysts Jul. 21, 1992
5051153 Separation of methylene chloride from methylal by extractive distillation Sep. 24, 1991
4982011 Production of ether/ether-alcohol compositions Jan. 1, 1991
4908477 Removal of organic iodine compounds from carbonylation products of methanol methyl acetate and dimethyl ether Mar. 13, 1990
4851569 Continuous process for the production of methyl formate by the chromium catalyzed liquid phase oxidation of methanol Jul. 25, 1989
4841075 Method of preparing acetal or ketal Jun. 20, 1989

1 2 3

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