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Class 525/375 - Contains nitrogen atom in a heterocyclic ring


Subclass of Class 525 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein the chemical treating agent contains
No. of patents: 673
Last issue date: 02/07/2012


1                      
NumberTitleIssue Date
8110635Method for producing conjugated diene polymer, conjugated diene polymer, and polymer composition
A method for producing a conjugated diene polymer is provided that includes a step of polymerizing a conjugated diene-containing monomer in a hydrocarbon solvent in the presence of an alkali metal catalyst, thus giving a polymer having a catalyst-derived alkali meta...
02/07/2012
8106131Hydrolytically stable maleimide-terminated polymers
The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors. ...
01/31/2012
8058358Method and formula for forming hyper-branched polymer
The invention provides hyper-branched polymer manufactured by adding a bismaleimide and a barbituric acid into a Brönsted base solution and reacting the mixture at 20 to 100° C. The formation may further include maleimide monomer and/or multi-maleimide monomer to ...
11/15/2011
8034881Cross-linkable nitrile rubber composition and cross-linked rubber
A cross-linkable nitrile rubber composition containing a highly saturated nitrile rubber (a) having an α,β-ethylenically unsaturated nitrile monomer unit and a carboxyl-group containing monomer unit and having an iodine value of 120 or less, a cross-linking agent ...
10/11/2011
7847031Continuous process for the preparation of a reactive polymer
A continuous process for the reactive compatibilization of polymers includes I. processing monooxazoline, bisoxazoline or a mixture thereof together with a first polymer, to give a reactive polymer; and II. adding the reactive polymer to one or more second polymers....
12/07/2010
7842759Nitroxide compounds for minimizing scorch in crosslinkable compositions
Scorch is inhibited during the free-radical crosslinking of a crosslinkable polymer, e.g., an EPDM, by incorporating into the polymer before melt processing and crosslinking a scorch inhibiting amount of a derivative, preferably an ether, ester or urethane derivativ...
11/30/2010
7754822Method for the secondary crosslinking of hydrogels with bicyclic amide acetals
A process for postcrosslinking a water-absorbing polymer comprises said polymer being treated with a postcrosslinker and, during or after said treating, being postcrosslinked and dried by temperature elevation, said postcrosslinker being a compound of the formula I
07/13/2010
7728079Hydrolytically stable postcrosslinked superabsorbents
The present invention relates to a process for producing postcrosslinked water-absorbing polymeric formations, comprising the steps of contacting water-absorbing polymeric formations P1 obtained by polymerization of ethylenically unsaturated acid-function...
06/01/2010
7709580Method for preparation of polylefins containing exo-olefin chain ends
The present invention is directed to a method for preparation of polyolefins containing exo-olefin chain ends. The method involves quenching a cationic quasi-living polyolefin polymer system with a nitrogen-containing five-membered aromatic ring having at least two ...
05/04/2010
7705090Method for preparing polyolefins containing a high percentage of exo-olefin chain ends
The present invention is directed to a method for preparing polyolefins containing a high percentage of exo-olefin chain ends. The method involves ionizing a polyolefin containing tert-chloride chain ends and reacting the ionized polyolefin with one or more nitrogen...
04/27/2010
7579411Process for the controlled increase in the molecular weight of polyethylenes
The invention relates to hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer and methods for achieving a controlled increase in the molecular weight of polyethylene. ...
08/25/2009
7576161Process for preparing terminally functionalized living and quasiliving cationic telechelic polymers
Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the polymer product with an N-sub...
08/18/2009
7501476Method for preparing polyolefins containing vinylidene end groups using azole compounds
Disclosed is a method for preparing polyolefins containing vinylidine end groups from quasiliving carbocationically terminated polyolefin polymers by contacting the quasiliving carbocationically terminated polymer with a suitable azole quenching agent and substitute...
03/10/2009
7420019Method for preparation of polyolefins containing exo-olefin chain ends
The present invention is directed to a method for preparation of polyolefins containing exo-olefin chain ends. The method involves quenching a cationic quasi-living polyolefin polymer system with one or more hindered secondary or tertiary amines. ...
09/02/2008
7399816Maleimidyl-containing material and production method thereof
The invention provides a maleimidyl-containing material having a substituent group defined by the following structural formula (1) containing a maleimidyl group (maleimido group): wherein A denotes a spacer containing an am...
07/15/2008
7399808Molecular melt and methods for making and using the molecular melt
The present invention includes a molecular melt composition comprising an antioxidant and a coupling agent. The molecular melt is partially amorphous in nature. The invention also includes a method for making the molecular melt composition and a method for using the...
07/15/2008
7390570Maleimide terminated rubber and curable composition produced by using the maleimide terminated rubber
An object of the present invention is to provide a curable composition which exhibits excellent toughness after the curing and excellent long term stability, as well as a rubber used in such curable composition. Such object is realized by a maleimide terminated rubb...
06/24/2008
7365179Multiplexed analytical platform
The invention provides a system and reagents for carrying out multiplexed analytical measurements using the hybridization of oligonucleotide tags to addressable solid phase supports to obtain simultaneous readouts from hundreds to tens of thousands of reactions. In ...
04/29/2008
7358311Crosslinking of unsaturated polymers by the use of hydroxylamine-esters
The instant invention relates to a process for crosslinking unsaturated polymer resins as e.g. unsaturated polyesters using hydroxyamine esters as radical source. Further aspects of the invention are a composition comprising unsaturated polymer resins as e.g. unsatu...
04/15/2008
7347330Method for sizing of water-absorbent resin
A method for sizing a surface cross-linked water-absorbent resin removed coarse particles and fine powder is provided. Sized resin particles are obtained by classifying water-absorbent resin particles to remove an aggregates and fine powder in the particles, disinte...
03/25/2008
7342076Polymers and curable compositions
The present invention is concerned with a vinyl polymer having at least one group of the general formula (1) permolecule at the molecular chain terminus. —Z—R—CR1═CR2R3  (1) wherein Z represents an oxy...
03/11/2008
7339005Process for producing modified diene polymer rubber
There is provided a process for producing a both end-modified diene polymer rubber comprising the steps of: (1) polymerizing a conjugated diene monomer or a combination thereof with an aromatic vinyl monomer in the presence of a co...
03/04/2008
7339007Low sediment process for thermally reacting highly reactive polymers and enophiles
A process for forming an ene reaction product wherein an enophile, such as maleic anhydride, is reacted with reactive polyalkene having a terminal vinylidene content of at least 30 mol. %, at high temperature in the presence of a free radical inhibitor. The polyalke...
03/04/2008
7339002Removable, water-whitening resistant pressure sensitive adhesives
Removable, water-whitening resistant pressure sensitive adhesive (PSA) comprising a crosslinked aqueous emulsion polymer comprising (a) at least one hydrophobic monomer; (b) at least about 2 wt. % of at least one hydrophilic monomer; and (c) at least about 5 wt. % o...
03/04/2008
7317059Ligand immobilization support
A polymer comprising a styrene-based monomer and t-butyl methacrylate, wherein a proportion of the styrene-based monomer in the polymer is 30% by mol to 90% by mol and the polymer has a functional group represented by the following formula (1) which includes a malei...
01/08/2008
7312278Water-absorbing agent and production process therefor, and sanitary material
There is provided: a production process for a water-absorbing agent having stable properties in a short time; and a water-absorbing agent. The production process comprises the step of blending an acid-group-containing water-absorbent resin powder with a noncrosslink...
12/25/2007
7288601Method for production of water-absorbent resin and plow-shaped mixing device
A method for mixing a water-absorbent resin and a surface cross-linking agent-containing solution to repress aggregates is equipped. The water-absorbent resin and the surface cross-linking agent-containing solution is mixed with a plow-shaped mixing device which is ...
10/30/2007
7288599Oligomers and polymers containing sulfinate groups, and method for producing the same
The invention relates to polymers obtained by S-alkylation of sulfinated polymers with alkylation agents, and AB-cross-linked polymers obtained by reacting polymers containing alkylation groups with low-molecular sulfinates, under S-alkylation, or AB-cross-linked po...
10/30/2007
7276555Amide-modified resin or hydrocarbyl moiety for dispersing a pigment
A method of dispersing pigment using an amide-modified resin or an amide-modified hydrocarbyl moiety, and the resulting pigment concentrate or coating or ink composition. ...
10/02/2007
7273910Process for the preparation of a functionalized polymer intermediate products, compositions and shaped parts
Process for the preparation of a functionalized polymer containing an additive, in which process there is formed a compound that contains, besides at least one blocked isocyanate group, a free amino, hydroxy or carboxy group; this compound is linked to an additive v...
09/25/2007
7265181Polyimide cross-linked polymer and shaped article thereof
Provided according to the invention are cross-linked polymers comprising an anhydride or partially hydrolyzed anhydride functionalized polymer having oligomeric polyimide cross-links, providing a polymeric composite on a molecular scale, and shaped articles made the...
09/04/2007
7265182Polyamic acid cross-linked polymer and formable composition therefrom
Cross-linked polymers comprising an anhydride or partially hydrolyzed anhydride functionalized polymer having oligomeric polyamic acid cross-links are provided. In solution, a polymer of the invention forms a formable gel. The formable gel is useful for forming shap...
09/04/2007
7253231Grafted multi-functional olefin copolymer VI modifiers and uses thereof
A novel highly grafted, multi-functional olefin copolymer is provided comprising an additive reaction product of a method comprising reacting acylating agent with an olefin copolymer having a number average molecular weight greater than about 1,000 in the presence o...
08/07/2007
7250476Multi-functional polymers
A multi-functional polymer defined by the formula (Q—RnZ—P2—Y where (Q—R)n is a functionality cluster, Q is a functional group, R is a multi-valent organic group, P2 is a long-chain p...
07/31/2007
7247681Preparation method of copolymer
The present invention provides a method for preparing a copolymer useful for the manufacture of tires by coupling the ends of a living polymer obtained from copolymerization of a diene monomer and a vinyl aromatic monomer in the presence of an organolithium catalyst...
07/24/2007
7238753Carpet, stainproofing agent for carpet and method for treating the carpet
The invention relates to a carpet comprising a stainproof-treated textile, wherein the carpet has stainproof ratio (%) of at least 30% as defined below: Stainproof ratio (%)=100×(ΔENΔETn)/ΔEN ...
07/03/2007
7238740Rubber composition for a tire comprising a citraconimido-alkoxysilane as coupling agent
The invention provides an elastomeric composition based on at least an isoprene elastomer, a reinforcing inorganic filler and, as (inorganic filler/isoprene elastomer) coupling agent, a citraconimido-alkoxysilane, in particular an N-[((C1-C3)al...
07/03/2007
7217522Genetic analysis by sequence-specific sorting
The invention provides methods for sorting polynucleotides from a population based on predetermined sequence characteristics. In one aspect, the method of the invention is carried out by extending a primer annealed polynucleotides having predetermined sequence chara...
05/15/2007
7217497Hydroxy-amino thermally cured undercoat for 193 nm lithography
The present invention is directed to a thermally curable polymer composition, and a photolithographic substrate coated therewith, the composition comprising a hydroxyl-containing polymer, an amino cross-linking agent and a thermal acid generator. The thermally curab...
05/15/2007
7208553Fluoropolymer curing system
A composition of a fluoropolymer comprising interpolymerized units of nitrogen-containing cure site monomer and a catalyst comprising a compound having the formula: wherein HA is an acid, each R1, R
04/24/2007
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