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Class Information
Number: 568/623
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Ethers > Plural oxyalkylene groups bonded directly to each other > Acyclic > Hydroxy containing (h of -oh may be replaced by a group ia or iia light metal) > Polyhydroxy containing
Description: Compounds which include two or more hydroxy groups.










Sub-classes under this class:

Class Number Class Name Patents
568/624 Plural diverse oxyalkylene groups containing 184


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8704005 Methods for making polyglycerol Apr. 22, 2014
8703684 Aqueous lubricant Apr. 22, 2014
8692030 Biobased-petrochemical hybrid polyols Apr. 8, 2014
8598391 Polytrimethylene ether glycol or copolymers thereof having improved color and processes for their preparation Dec. 3, 2013
8530602 Polyether polyol composition and use thereof Sep. 10, 2013
8501998 Method for producing polyoxyalkylene derivative and polyoxyalkylene derivative Aug. 6, 2013
8481788 Process for producing polyalkylene oxide Jul. 9, 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
8362304 Process for making glycol ether compositions useful for metal recovery Jan. 29, 2013
8350078 Methods for making sterically hindered ethers Jan. 8, 2013
8344098 Processes for producing polytrimethylene ether glycol and copolymers thereof Jan. 1, 2013
8317900 Polymer membrane Nov. 27, 2012
8293866 Method of producing a poly (ethylene oxide) copolymerised with at least one other alkylene oxide Oct. 23, 2012
8247526 Process for the preparation of polyalkylene ether glycol Aug. 21, 2012
8236869 Polyether polyol, rigid polyurethane foam and processes for production thereof Aug. 7, 2012
8071712 Multibranched polyoxyalkylene derivative Dec. 6, 2011
8058388 Process for alkoxylation with DMC catalysts in a loop reactor with ejector Nov. 15, 2011
8053607 Method for producing polyether-polyol having narrow molecular weight distribution Nov. 8, 2011
8017814 Process for the preparation of polyether polyols Sep. 13, 2011
7714174 Lower-color polytrimethylene ether glycol using hydride compounds May. 11, 2010
7553921 Polyether polyol composition and use thereof Jun. 30, 2009
7226988 Method of forming polyetherols in the presence of carboxy-modified aluminum-based catalysts Jun. 5, 2007
7132574 Preparation of perfluoropolyethers having at least one --CH.sub.2OH or --CH(CF.sub.3)OH end group Nov. 7, 2006
7022884 Preparation of polyetherpolyols in the presence of a multimetal cyanide complex catalyst Apr. 4, 2006
7015364 Process for preparing polyether polyols Mar. 21, 2006
6919486 Polyetherols produced using aluminium phosphonate catalysts Jul. 19, 2005
6878661 Bimetallic-cyanide catalysts used for preparing polyether polyols Apr. 12, 2005
6858761 Process for preserving resin catalyst for addition reaction of alkylene oxide and utilization of this process Feb. 22, 2005
6812367 Polyethylene glycol and process for producing the same Nov. 2, 2004
6806393 Multimetal cyanide compounds, their preparation and their use Oct. 19, 2004
RE38558 Polyoxypropylene/polyoxyethylene copolymers with improved biological activity Jul. 20, 2004
6740686 Process for the manufacture of polyurethane foam, amine polyesterpolyol used in this process and foam obtained May. 25, 2004
6717019 Glycidyl ether-capped acetylenic diol ethoxylate surfactants Apr. 6, 2004
6664428 Method of producing polyetherpolyols Dec. 16, 2003
6646145 Processes for preparing alkoxylated nonionic surfactants using hydrotalcite catalysts Nov. 11, 2003
6620976 Polyethylene glycol and process for producing the same Sep. 16, 2003
6608231 Double-metal cyanide catalysts for producing polyether polyols Aug. 19, 2003
6586564 Double-metal cyanide catalysts for preparing polyether polyols Jul. 1, 2003
6540942 Nonaqueous compositions and additives therefor Apr. 1, 2003
6531566 Polyoxyalkylenepolyols and process for producing ring-opened polymer Mar. 11, 2003
6515036 Method of decomposing a polyurethane Feb. 4, 2003
6486354 Solid phase supports Nov. 26, 2002
6465605 Branched polymeric surfactant reaction products, methods for their preparation, and uses therefor Oct. 15, 2002
6403842 Processes for producing poly(alkylene ether) glycol Jun. 11, 2002
6359101 Preparing polyether polyols with DMC catalysts Mar. 19, 2002
6350920 Method for preparing polyether polyols Feb. 26, 2002
6323375 Crystalline double metal cyanide catalysts for producing polyether polyols Nov. 27, 2001
6313060 Catalyst for ring-opening polymerization of alkylene oxide, method for preparation thereof and use thereof Nov. 6, 2001
6303833 Multi-metal cyanide complexes as catalysts and their use in preparing polyetherpolyols Oct. 16, 2001

1 2 3 4










 
 
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