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Class Information
Number: 526/173
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Polymers from only ethylenic monomers or processes of polymerizing, polymerizable compositions containing only ethylenic monomers as reactants or processes of preparing > Polymerizing in the presence of a specified material other than monomer > Material contains elemental alkali metal, hydride thereof, or alkali metal to carbon atom bond (li, na, k, rb, cs, fr)
Description: Subject matter wherein the specified material contains an elemental alkali metal, and alkali metal hydride, or a compound containing an alkali metal bonded to a carbon atom.

Sub-classes under this class:

Class Number Class Name Patents
526/177 Contains aluminum atom 88
526/174 Contains at least two diverse alkali metal atoms, at least one of which is in the form of a free alkali metal, or in the form of a hydride, or has an alkali metal to carbon atom bond 85
526/178 Contains boron or silicon atom 90
526/180 Contains compound of nitrogen 181
526/182 Contains halogen atom 25
526/176 Contains heavy metal atom 61
526/181 Contains oxygen atom 172
526/179 Contains phosphorus atom 46
526/175 Contains two or more separate chemical entities containing atoms of the same alkali metal, with at least one atom in elemental form, or in the form of a hydride, or has an alkali metal to carbon atom bond 65

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8710164 Process for the preparation of diene polymers of statistical vinylarene-diene copolymers Apr. 29, 2014
8653210 Continuous process for the production of a superabsorbent polymer Feb. 18, 2014
8609757 Cationic cross-linked polymers in water-in-water polymer dispersions Dec. 17, 2013
8487060 Method for producing polychloroprene latex, polychloroprene latex, and adhesive using the same Jul. 16, 2013
8476391 Anionic water-in-water polymer dispersion, method for the production thereof and its use Jul. 2, 2013
8394305 Cellulose-based masterbatch with networked structure, application thereof and method for preparing the same Mar. 12, 2013
8362181 Functional polymers prepared with sulfur-containing initiators Jan. 29, 2013
8362150 Gas-phase anionic polymerization Jan. 29, 2013
8362156 Polymers functionalized with heterocyclic nitrile compounds Jan. 29, 2013
8357766 Continuous process for the production of a superabsorbent polymer Jan. 22, 2013
8329837 Cellulose-based masterbatch with networked structure, application thereof and method for preparing the same Dec. 11, 2012
8314189 Polymers functionalized with heterocyclic nitrile compounds Nov. 20, 2012
8207282 Bifunctional organolithium initiator and conjugated diene copolymers prepared using the same Jun. 26, 2012
8188205 Hydrotalcite catalyzed polymerization of trimethylene carbonate May. 29, 2012
8124699 Polymerization of fluoropolymers using alkyl phosphonate surfactants Feb. 28, 2012
8119749 Method of taking (meth)acrylic ester polymer out of liquid reaction mixture Feb. 21, 2012
8063165 Functional polymers prepared with sulfur-containing initiators Nov. 22, 2011
7994236 Technique for purifying polymer compositions Aug. 9, 2011
7968189 Removable adhesive composition, removable adhesive layer, adhesive sheet, and surface protective material Jun. 28, 2011
7906593 Rubber composition containing an alkoxysilane coupled in-chain functionalized elastomer and tire with component thereof Mar. 15, 2011
7879958 Polyhydroxy compounds as polymerization quenching agents Feb. 1, 2011
7879940 Polymerization initated at sidewalls of carbon nanotubes Feb. 1, 2011
7834111 Terminating agent for anionic polymerization Nov. 16, 2010
7772336 Method for producing .alpha.-methylstyrene and heat-resistant styrene-based copolymer using the .alpha.-methylstyrene Aug. 10, 2010
7737218 Method for generating free radical capable polymers using tin or silicon halide compounds Jun. 15, 2010
7728091 Polymerization of phosphaalkenes Jun. 1, 2010
7714085 Production method of polymers by using living anionic polymerization method May. 11, 2010
7709687 Dicarbanionic initiator, a process for the preparation and use thereof May. 4, 2010
7705074 Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactant Apr. 27, 2010
7608658 Amine-functionalized liquid polyisoprene Oct. 27, 2009
7462677 Sulfur containing initiators for anionic polymerization of monomers Dec. 9, 2008
7459507 Method for the termination of anionic polymerization using phosphate ester/water mixture Dec. 2, 2008
7405262 Preparation of functionalized anionic polymerization initiators Jul. 29, 2008
7354531 Polymer electrolyte composition Apr. 8, 2008
7351777 Retarded anionic polymerization of vinyl aromatic monomers using insoluble or heterogeneous retardants Apr. 1, 2008
7288612 Initiator composition and method for anionic polymerisation Oct. 30, 2007
7223827 Water control in a subsurface formation May. 29, 2007
7202310 Polymers, processes for producing the same, and curable compositions produced therefrom Apr. 10, 2007
7179870 Method for the preparation of poly sg(a)-methylstyrene Feb. 20, 2007
7153919 Use of sulfur containing initiators for anionic polymerization of monomers Dec. 26, 2006
7153920 Synthesis of functionalized high vinyl rubber Dec. 26, 2006
7125940 Conjugated diene polymers and copolymer blocks and process for preparing same Oct. 24, 2006
7119126 Polymer matrix material Oct. 10, 2006
7105613 CO.sub.2 terminated rubber for plastics Sep. 12, 2006
7074869 Synthesis of functionalized high vinyl rubber Jul. 11, 2006
7005484 Polymerization method Feb. 28, 2006
6995228 Copolymer of conjugated cyclodiene Feb. 7, 2006
6982288 Medical compositions containing an ionic salt, kits, and methods Jan. 3, 2006
6979717 Anionic process design for rapid polymerization of polystyrene without gel formation and product produced there from Dec. 27, 2005
6881795 CO2 terminated rubber for plastics Apr. 19, 2005

1 2 3 4 5 6 7 8

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