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Class Information
Number: 568/679
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Ethers > Acyclic > Polyoxy > Hydroxy containing (h of -oh may be replaced by a group ia or iia light metal) > Polyether
Description: Compounds which contain two or more ether groups.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8703683 Poly (alkyl epdxides), process for making, and lubricant compositions having same Apr. 22, 2014
8637711 Selective and specific preparation of discrete PEG compounds Jan. 28, 2014
8455699 Production and separation of glycerol-related products using various feed stocks Jun. 4, 2013
8404904 Process for reducing color of a polyglycerol Mar. 26, 2013
8378144 Process for preparing polyoxymethylene homopolymers or copolymers by homopolymerization or copolymerization of trioxane, starting from methanol Feb. 19, 2013
8367876 Method for producing polyether Feb. 5, 2013
8357825 Process for the production of a 1,2-diol, a 1,2-diol ether, or an alkanolamine Jan. 22, 2013
8357823 Alkylene oxide capped secondary alcohol ethoxylates as fermentation foam control agents Jan. 22, 2013
8357813 Process for the production of an olefin oxide Jan. 22, 2013
8354356 DMC catalysts, method for the production thereof and use thereof Jan. 15, 2013
8344098 Processes for producing polytrimethylene ether glycol and copolymers thereof Jan. 1, 2013
8329958 Combinatorial synthesis of PEG oligomer libraries Dec. 11, 2012
8293866 Method of producing a poly (ethylene oxide) copolymerised with at least one other alkylene oxide Oct. 23, 2012
8269049 Method of producing diethylene-glycol tert-butyl ether using isobutylene and diethylene glycol Sep. 18, 2012
8247526 Process for the preparation of polyalkylene ether glycol Aug. 21, 2012
8193393 Fluoroether diketones for high temperature heat transfer Jun. 5, 2012
8183400 Alkylene oxide recovery systems May. 22, 2012
8114957 Process for preparing poly(trimethylene ether) glycol and copolymers thereof Feb. 14, 2012
8058388 Process for alkoxylation with DMC catalysts in a loop reactor with ejector Nov. 15, 2011
8058480 Process for the alkoxylation of alcohols Nov. 15, 2011
8048840 Ether compound Nov. 1, 2011
8034980 Method for producing polyether polyols Oct. 11, 2011
8017814 Process for the preparation of polyether polyols Sep. 13, 2011
7919575 Starter feed stream acidification in DMC-catalyzed process Apr. 5, 2011
7888536 Selective and specific preparation of discrete PEG compounds Feb. 15, 2011
7858829 Alkoxylations in microstructured capillary reactors Dec. 28, 2010
7772330 Process for the preparation of polyether polyols Aug. 10, 2010
7750191 Method for producing polyether alcohols Jul. 6, 2010
7732646 Crosslinking agent based on linear hydroxypolyallyl ether Jun. 8, 2010
7723465 Method for producing polyether alcohols May. 25, 2010
7714174 Lower-color polytrimethylene ether glycol using hydride compounds May. 11, 2010
7648651 Solvent composition Jan. 19, 2010
7576244 Compounds and compositions for use as foaming or frothing agents in ore and coal flotation Aug. 18, 2009
7528270 Process for the production of an olefin oxide, a 1, 2-diol, a 1,2-diol ether, or an alkanolamine May. 5, 2009
7504543 Polyether alcohols and method for the production of polyether alcohols for polyurethane synthesis Mar. 17, 2009
7482495 Process for making alkylene glycol ether compositions useful for metal recovery Jan. 27, 2009
7479565 Process for the production of an olefin oxide, a 1,2-diol, a 1,2-diol ether, or an alkanolamine Jan. 20, 2009
7446233 Surface modifier Nov. 4, 2008
7423186 Process for preparing alkoxy-pure alkaline earth alkoxides Sep. 9, 2008
7414159 Separation of liquid mixtures in a film evaporator Aug. 19, 2008
7405330 Preparation of polytrimethylene ether glycol and copolymers thereof Jul. 29, 2008
7396963 Method for preparing metal cyanide catalyst complexes using partially miscible complexing agents Jul. 8, 2008
7388114 Perfluoropolyether derivative Jun. 17, 2008
7378559 Continuous process and system of producing polyether polyols May. 27, 2008
7335801 Polyglycerols and production thereof Feb. 26, 2008
7323605 Double metal cyanide-catalyzed, low unsaturation polyethers from boron-containing starters Jan. 29, 2008
7312363 Method for activating double metallocyanide-compounds Dec. 25, 2007
7312364 Equilibrium reaction and gas/liquid reaction in a loop reactor Dec. 25, 2007
7241926 Method for producing polyether alcohols Jul. 10, 2007
7230140 Perfluoropolyether derivative Jun. 12, 2007

1 2 3 4

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