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Class 526/173 - Material contains elemental alkali metal, hydride thereof, or alkali metal to carbon atom bond (Li, Na, K, Rb, Cs, Fr)


Subclass of Class 526 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein the specified material contains an
No. of patents: 338
Last issue date: 02/28/2012


1                  
NumberTitleIssue Date
8124699Polymerization of fluoropolymers using alkyl phosphonate surfactants
The present invention relates to a method for the polymerization of fluoromonomers using non-fluorinated alkyl phosphonate surfactants, and to the fluoropolymers formed thereby. Specifically, the method of the polymerization uses one or more alkyl phosphonic acids o...
02/28/2012
7714085Production method of polymers by using living anionic polymerization method
An anionic polymerizable monomer is added to a reaction system in which an anion species which is incapable of initiating polymerization but may react with polymerization inhibiting substances to convert them into compounds that do not inhibit polymerization is pres...
05/11/2010
7405262Preparation of functionalized anionic polymerization initiators
A process for preparing a functionalized polymerization initiator, the process comprising combining a functionalized styryl compound and an organolithium compound. ...
07/29/2008
7354531Polymer electrolyte composition
A composition for use as a polymer electrolyte, wherein said composition includes one or more polar materials and one or more polyesters of formula III, wherein each unit A may be identical or different and is of the struct...
04/08/2008
7351777Retarded anionic polymerization of vinyl aromatic monomers using insoluble or heterogeneous retardants
This invention is a process to manufacture high quality vinyl aromatic polymer that is essentially free of unreacted vinyl aromatic monomer using retarded anionic polymerization wherein the retardant is insoluble and can be removed from the polymerization at an inte...
04/01/2008
7288612Initiator composition and method for anionic polymerisation
The invention relates to an initiator composition for anionic polymerization, comprising at least one alkali metal hydride selected from LiH, NaH, and KH, and at least one organylaluminum compound, and to a process for the anionic polymerization of styrene monomers ...
10/30/2007
7252924Positive resist composition and method of pattern formation using the same
A positive resist composition comprising: at least two resins which differ in glass transition temperature by at least 5° C.; and a compound which generates an acid upon irradiation with actinic rays or radiation, wherein each of the two resins comprises at least e...
08/07/2007
7223827Water control in a subsurface formation
A composition and a method of using the composition to adjust the permeability of a subsurface formation is disclosed. The composition is a water insoluble gel made by cross linking a water soluble polymer. The water soluble polymer is made by polymerizing a precurs...
05/29/2007
7202310Polymers, processes for producing the same, and curable compositions produced therefrom
An alkenyl- or crosslinkable silyl-terminated vinyl polymer is provided. Such a functional group is introduced into its terminus at a high ratio, not via sulfur atoms. Those polymers can be prepared by polymerizing a vinyl monomer for obtaining a halogen-terminated ...
04/10/2007
7189792Catalyst for synthesizing high trans polymers
The process and catalyst of this invention can be utilized to synthesize homo and copolymers of conjugated diene monomers and vinyl aromatic monomers having high trans contents of greater than 60% with low melting points. These homo and copolymers of conjugated dien...
03/13/2007
7179870Method for the preparation of poly sg(a)-methylstyrene
The invention relates to a process for the preparation of poly(α-methylstyrene) by anionic polymerization of the α-methylstyrene monomer, said process successively comprising the following stages: a) a stage of preparation of a solution comprising the...
02/20/2007
7160952Process for preparing linear block copolymer
The present invention relates to a linear block copolymer and a process for preparing the same, particularly to a linear block copolymer and a process for preparing the same which can improve transmissivity of a block copolymer and remarkably lower a Haze value by i...
01/09/2007
7153920Synthesis of functionalized high vinyl rubber
This invention is based upon the discovery that rubbery polymers having a high vinyl content and a low degree of branching can be synthesized with an initiator system that is comprised of (a) a lithium initiator selected from the group consisting of allylic lithium ...
12/26/2006
7153919Use of sulfur containing initiators for anionic polymerization of monomers
An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally as additional functional group resulting f...
12/26/2006
7148303Butyl-type rubber with high hardness
The present invention relates to an elastomeric polymer having repeating units derived from at least one isomonoolefin monomer, at least one multiolefin monomer, at least one diisoalkenylbenzene monomer, and optionally further copolymerizable monomers, wherein the p...
12/12/2006
7125934Functionalization of living rubbery polymers with nitrones
This invention discloses a low cost process that can be used to functionalize living rubbery polymers with terminal nitroxide end-groups to promote interaction between the polymer end-groups and surface functionalities commonly found on carbon black and silica fille...
10/24/2006
7125940Conjugated diene polymers and copolymer blocks and process for preparing same
Disclosed is a process for preparing polymers and copolymer blocks of conjugated dienes with varying amounts of branching comprising the use of a microstructure control agent and a microstructure control agent deactivant. The polymerization can be started with or wi...
10/24/2006
7119126Polymer matrix material
The polymer matrix material includes a polymerization product of one or more monomers selected from the group of water-soluble, ethylenically-unsaturated acids and acid derivatives, and a crosslinking agent. A quantity of water is used for polymerization, such that ...
10/10/2006
7105613COterminated rubber for plastics
A process for the manufacture of a baleable lithium carboxylate polymer. The process includes polymerizing at least one conjudated diene in the presence of an organolithium initiator to a substantial completion. Thereafter, the polymerization process is terminated b...
09/12/2006
7074869Synthesis of functionalized high vinyl rubber
This invention is based upon the discovery that rubbery polymers having a high vinyl content and a low degree of branching can be synthesized with an initiator system that is comprised of (a) a lithium initiator selected from the group consisting of allylic lithium ...
07/11/2006
7037980Monovinylarene/conjugated diene copolymers having lower glass transition temperatures
We disclose a monovinylarene/conjugated diene block copolymer, comprising: (i) a random (conjugated dienex/monovinylareney)m block, wherein x is about 2.5 wt % to about 10 wt %, y is from about 90 wt % to about 97.5 wt %, and x+y is ...
05/02/2006
7005484Polymerization method
A method for making a polymer or oligomer comprising the steps of making a first monomer comprising a substituted aromatic or heteroaromatic group by providing an aromatic or heteroaromatic group substituted with first and second director groups, performing metalisa...
02/28/2006
6995228Copolymer of conjugated cyclodiene
A cyclic conjugated diene copolymer comprising a main chain comprised of (A) cyclic conjugated diene monomer units, (B) monomer units obtained from vinyl aromatic monomers each having a hydrogen atom at the α-position thereof, and optionally (C) monomer units obtai...
02/07/2006
6982288Medical compositions containing an ionic salt, kits, and methods
A hardenable medical composition (preferably, dental composition) that includes an ionic redox polymerization system and at least one secondary ionic salt that includes a cation selected from the group consisting of a Group I ion, a Group II ion, an ammonium ion of ...
01/03/2006
6979717Anionic process design for rapid polymerization of polystyrene without gel formation and product produced there from
The extremely rapid anionic polymerization rate of polystyrene has made polymerization difficult to control and has prevented large-scale development. This invention uses batch polymerization to utilize the rapid rate of polymerization to complete polymerization fro...
12/27/2005
6921793Rubber compositions and vulcanizates including comb-branched polymers
A vulcanizate comprising a rubber, and a damping component that is prepared by preparing a mixture of living polymers that include living polymers with at least two living ends and living polymers with one living end to form a mixture of living polymers, and couplin...
07/26/2005
6881795CO2 terminated rubber for plastics
A process for the manufacture of a baleable lithium carboxylate polymer. The process includes polymerizing at least one conjudated diene in the presence of an organolithium initiator to a substantial completion. Thereafter, the polymerization process is terminated b...
04/19/2005
6878797Synthesis and applications of polymaleimide
A process for producing alkali metal polymaleimide salts by alkaline hydrolysis of maleimide polymers prepared by polymerization of maleimide monomers in the presence of a metal oxide and alcohol initiator or a base. In particular, the process produces alkali metal ...
04/12/2005
6878789Preparation process of acrylic acid ester polymer
A process for the preparation of an acrylic acid ester polymer, includes carrying out polymerization of an acrylic acid ester or block copolymerization of an acrylic acid ester and another (meth)acrylic monomer in the presence of an organolithium compound and an org...
04/12/2005
6872783Method of preparation of coupled branched and linear polymer compositions
A continuous process for manufacture of a polymer including branched and linear components comprising first polymerizing conjugated diene(s) in the presence of an organometallic initiator to a conversion that is at least 90% complete. A coupling agent is added to ob...
03/29/2005
6869678Removable pressure-sensitive adhesive and adhesive sheet of the same
A removable pressure-sensitive adhesive which, even when applied to metal sheets or to metallic members which have undergone a coating treatment, is inhibited from increasing in adhesive force with the lapse of time and can be easily removed therefrom and which has ...
03/22/2005
6835269Laminated film and method of producing the same
A laminated film exhibiting excellent interlayer adhesiveness obtained by extrusion-laminating a resin directly on a polyester film without effecting anchor-coating or without treating the molten film of the extrusion-laminated resin with ozone. The laminated film i...
12/28/2004
6825306Functionalized monomers for synthesis of rubbery polymers
The present invention relates to a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer of the structural formula:
11/30/2004
6812307Functionalized monomers for synthesis of rubbery polymers
This invention is based upon the unexpected finding that random copolymers of 1,3-butadiene monomer and 3-(2-pyrrolidinoethyl) styrene and/or 4-(2-pyrrolidinoethyl) styrene having a low vinyl content can be synthesized by anionic polymerization at normal polymerizat...
11/02/2004
6790921Functionalized elastomers
This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer having of the structural formula: ...
09/14/2004
6790920Process for removal of silicon compounds from solvents by selective absorption
Removing silicon species from hydrocarbon solvents such as cyclohexane by flowing the hydrocarbon solvent through a selective adsorbent selected from the group consisting of aluminas, silicon-aluminas, ion exchange resins, zeolite Y, and combinations thereof. ...
09/14/2004
6787661Tin-containing organolithium compounds and preparation thereof
The present invention relates to a tin-containing organolithium compound which can be used as anionic polymerization initiators, represented by the following formula (1): R4−xSn(Ya—Zm—Yb—Li)x
09/07/2004
6777511Process for producing poly (meth) acrylates having reduced metal content
An industrially excellent process for producing a poly(meth)acrylate having a reduced metal content which comprises contacting a mixture of a poly(meth)acrylate and an organic solvent with an acidic aqueous solution, such as an aqueous solution obtained by dissolvin...
08/17/2004
6767976Process for polymerizing a methacrylic ester or an acrylic ester
(1) A methacrylic ester or an acrylic ester is anionically polymerized, using a polymerization initiator compound comprising an addition reaction product of a conjugated diene compound and an organic alkali metal compound, in the presence of a tertiary organoaluminu...
07/27/2004
6765065Process for producing modified polymer rubber
There is provided a process for producing a modified polymer rubber having modified both ends, which comprises the steps of: (1) reacting a compound represented by the following formula (1) with an organic alkali metal compound to produce a chemical species, ...
07/20/2004
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