| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 526089000 |
Polymerizing in the presence of a specified material other than monomer
| 1700 |
| 526348000 |
From hydrocarbon
| 272 |
| 526242000 |
From fluorine containing monomer
| 174 |
| 526258000 |
From monomer containing nitrogen atom as part of a heterocyclic ring
| 130 |
| 526319000 |
From carboxylic acid ester monomer
| 115 |
| 526317100 |
From carboxylic acid monomer
| 102 |
| 526266000 |
From monomer containing oxygen as part of a heterocyclic ring
| 96 |
| 526075000 |
Including step of synthesis of monomer or pre-polymer
| 80 |
| 526256000 |
From monomer containing sulfur atom as part of a heterocyclic ring
| 67 |
| 526240000 |
From metal containing monomer
| 58 |
| 526335000 |
From hydrocarbon monomer containing at least two ethylenic groups, e.g., butadiene, etc.
| 57 |
| 526279000 |
From monomer containing a silicon atom
| 52 |
| 526280000 |
From fused or bridged ring containing monomer
| 42 |
| 526303100 |
From carboxylic acid amide-containing monomer
| 34 |
| 526078000 |
Adding material to an on-going polymerization reaction, said addition being other than the continuous addition of the initial charge
| 32 |
| 526286000 |
From S-containing monomer
| 32 |
| 526310000 |
From nitrogen containing monomer other than acrylonitrile or methacrylonitrile
| 28 |
| 526088000 |
Polymerization involving specified mixing, stirring, agitating, or movement of material
| 25 |
| 526291000 |
From halogen containing monomer having at least three carbon atoms
| 21 |
| 526274000 |
From monomer containing a phosphorus atom
| 17 |
| 526346000 |
From aromatic hydrocarbon
| 14 |
| 526239000 |
From boron containing monomer
| 14 |
| 526313000 |
From phenol, phenol ether, or inorganic phenolate monomer
| 13 |
| 526285000 |
From monomer containing an acetylenic group
| 10 |
| 526344000 |
From vinyl chloride
| 10 |
| 526077000 |
Including step of purifying monomer
| 9 |
| 526297000 |
From nitrile group containing monomer other than acrylonitrile or methacrylonitrile
| 7 |
| 526074000 |
Utilizing material during polymerization to prevent or remove reactor buildup, e.g., fouling, clogging, etc.
| 7 |
| 526308000 |
From cycloaliphatic monomer
| 7 |
| 526301000 |
From monomer containing a >N-C(=O)-O- group, e.g., carbamic acid, etc.
| 7 |
| 526238200 |
From carbohydrate, tannin, or derivative containing monomer
| 6 |
| 526073000 |
Polymerization involving two or more specified temperature or pressure conditions | 5 |
| 20080214749 | Method for the Production of Water Absorbing Polymers - A process for producing a water-absorbing polymer by polymerizing a monomer solution and drying the resulting hydrogel by means of a heated gas stream comprises
| 09-04-2008 |
| 20080262173 | Apparatus and Method For the Production of Polyethylene and Ethylene Copolymers - The invention relates to an apparatus for the high pressure polymerisation of ethylene which comprises a high pressure reactor; a conduit for the supply of ethylene to the reactor, the conduit being provided with a preheater for heating the ethylene; a waste heat boiler for the production of medium pressure steam; a source of high pressure steam; and a steam distribution system comprising a medium pressure steam net for the distribution of medium pressure steam from the waste heat boiler, in which the preheater comprises first, second and third sections and the steam distribution system is such that the first section can be supplied with steam from the medium pressure steam net, the second section can be supplied with steam from the medium pressure steam net or with high pressure steam and the third section can be supplied with high pressure steam. | 10-23-2008 |
| 20090088539 | ELECTROLYTE POLYMER FOR POLYMER ELECTROLYTE FUEL CELLS, PROCESS FOR ITS PRODUCTION AND MEMBRANE-ELECTRODE ASSEMBLY - To provide an electrolyte polymer for polymer electrolyte fuel cells, made of a perfluorinated polymer having sulfonic groups, characterized in that in a test of immersing 0.1 g of the polymer in 50 g of a fenton reagent solution containing 3% of an aqueous hydrogen peroxide solution and 200 ppm of bivalent iron ions at 40° C. for 16 hours, the amount of eluted fluorine ions detected in the solution is not more than 0.002% of the total amount of fluorine in the polymer immersed. The electrolyte polymer of the present invention has very few unstable terminal groups and has an excellent durability, and therefore, is suitable as a polymer constituting an electrolyte membrane for polymer electrolyte fuel cells and a polymer contained in a catalyst layer. | 04-02-2009 |
| 20140121337 | METHODS FOR PREPARATION OF PROPYLENE POLYMERS - Disclosed herein is a polymerization method of propylene, which can prepare a propylene homopolymer with both high fluidity and high rigidity as well as a propylene/α-define copolymer having both high fluidity and a good rigidity-toughness balance by, for example, control of polymerization steps and elevation of polymerization temperature, while the catalyst still maintains a relatively high polymerization activity. | 05-01-2014 |
| 20160032031 | PROPYLENE/BUTENE INTERPOLYMER PRODUCTION SYSTEM AND METHOD - The present disclosure provides a process. In an embodiment, the process includes producing a propylene-based polymer in a gas-phase polymerization reactor ( | 02-04-2016 |
| 526332000 |
From monomer containing an ether group | 3 |
| 20100004418 | Method for the Production of Superabsorbers - Superabsorbents are produced by polymerization in the presence of at least one unsaturated polyetherol selected from the group consisting of polyetherols having the following structural formulae (1), (2), (3) and (4): | 01-07-2010 |
| 20120190811 | PROCESS FOR THE PREPARATION OF AN ALLYL ALKYL ETHER BY CATALYTIC ALLYLATION - The invention provides a process for the preparation of an allyl alkyl ether comprising the allylation of an aliphatic hydroxyl containing compound with an allyl source in the presence of a catalyst, wherein the catalyst is a transition metal complex with a phosphine ligand, wherein the allylation is carried out in the presence of an acid in an amount of at least 0.1 mol % calculated on the aliphatic hydroxyl containing compound. This invention further provides a process for the preparation of epoxy resins wherein as intermediate use is made of the allyl alkyl ethers prepared by the process of the invention. | 07-26-2012 |
| 20140155566 | COMPOUNDS CONTAINING ALKYL-CYANO-BORATE OR ALKYL-CYANO-FLUOROBORATE ANIONS - The invention relates to new compounds containing alkyl/alkenyl-cyano-borate or alkyl/alkenyl-cyano-fluoroborate anions, their preparation and their use, in particular as part of electrolyte formulations for electrochemical or optoelectronic devices. | 06-05-2014 |
| 526315000 |
From aldehyde monomer | 3 |
| 20090221780 | PROCESS FOR STORING A MONOMER PHASE WHICH IS LIQUID UNDER THE CONDITIONS OF STORAGE - A process for storing a monomer phase which is liquid under the conditions of storage and comprises methacrylic monomers to an extent of ≧95% by weight and has been obtained by condensation out of a gaseous phase or by melting a crystalline phase, in a storage vessel, in which polymer of the monomer present in dissolved form in the liquid monomer phase is removed therefrom on the route from its generation into the storage vessel, and also a process for withdrawing liquid monomer phase from the storage vessel in which polymer of the monomer present in dissolved form in the monomer phase is likewise removed. | 09-03-2009 |
| 20100305290 | Continuous Washing of Poly(vinyl butyral) - The present invention provides a method for continuously washing poly(vinyl butyral) in which a poly(vinyl butyral) slurry is passed through multiple continuous stirred tank reactors, each of which is adjusted to specific processing parameters that allow for continuous input, washing, and removal of poly(vinyl butyral). The resulting poly(vinyl butyral) can then be dried to form a powder resin that can be used in place of conventional poly(vinyl butyral) resin. In an alternative embodiment, a counter current screw washing unit is provided that passes wash water over the poly(vinyl butyral) in a direction opposite to the flow of the poly(vinyl butyral), thereby allowing the continuous washing of the poly(vinyl butyral) resin. | 12-02-2010 |
| 20130005925 | AQUEOUS SOLUTION COMPRISING ACRYLIC ACID AND THE CONJUGATE BASE THEREOF - An aqueous solution containing 10% by weight of acrylic acid and its conjugate base. The solution further contains, based on the amount of acrylic acid and its conjugate base: at least 50 ppm of propionic acid and its conjugate base; at least 200 ppm of formic acid and its conjugate base; at least 3000 ppm of acetic acid and it conjugate base; at most 10 ppm of benzoic acid and its conjugate base; at most 10 ppm of maleic anhydride, maleic acid, and their conjugate bases; at most 10 ppm of phthalic anhydride, phthalic acid, and their conjugate bases; at most 50 ppm of acrolein; at most 50 ppm of benzaldehyde; at most 50 ppm of 2-furaldehyde; and at least 20 mol % of at least one alkali metal cation. A process for preparing this solution and the use of this solution for preparation of a polymer by free-radical polymerization. | 01-03-2013 |
| 526238100 |
From protein or biologically active polypeptide containing monomer | 3 |
| 20110288252 | DIALKOXY- OR DIHYDROXYPHENYL RADICALS CONTAINING SILANES, ADHESIVES PRODUCED THEREFROM AND METHOD FOR PRODUCING SILANES AND ADHESIVES - The present invention relates to silanes with the formula (I) R | 11-24-2011 |
| 20120208972 | POLYMERIZABLE CATONIC PEPTIDE MONOMERS AND POLYMERS - Disclosed herein are functionalized cationic peptide monomers: peptide chains of two or more positively charged amino acids chosen from lysine or arginine, or derivatives thereof, which are functionalized, meaning that they are bound to one or more polymerization moieties. The functionalized cationic peptide monomers can be described by the formula Z-Xaa | 08-16-2012 |
| 20160200952 | ADHESIVE | 07-14-2016 |
| 526314000 |
From monomer containing a carbonate group, i.e., -O-C(=O)-O- | 2 |
| 20090105438 | POLYCARBONATE RESINS METHOD OF MANUFACTURE, AND ARTICLES FORMED THEREFROM - Disclosed herein is a polycarbonate comprising a terminal olefin group of the formula | 04-23-2009 |
| 20090143555 | COPOLYMERS COMPRISING TRIMETHYLENE CARBONATE AND POLY(TRIMETHYLENE ETHER) GLYCOLS - The present invention relates to novel copolymers comprising unsubstituted or R-substituted trimethylene carbonate and poly(trimethylene ether)glycol. The copolymers find use in areas including personal care, coatings and lubricants. | 06-04-2009 |
| 526316000 |
From ketone or ketene monomer | 2 |
| 20120165490 | USE OF MARINE ALGAE FOR PRODUCING POLYMERS - In certain aspects, the disclosure provides methods for producing polymers from alkenone-producing algae, such as algae species of the Isochrysis family. | 06-28-2012 |
| 20140171608 | USE OF MARINE ALGAE FOR PRODUCING POLYMERS - In certain aspects, the disclosure provides methods for producing polymers from alkenone-producing algae, such as algae species of the | 06-19-2014 |
| 526302000 |
From monomer containing a >>N-C(=O)-N>N-C(-O)-N | 2 |
| 20080221290 | METHOD OF PRODUCING OPTICAL LAYERED BODY, OPTICAL LAYERED BODY, POLARIZER AND IMAGE DISPLAY DEVICE - It is an object of the present invention to a method for producing an optical layered body in order to obtain an optical layered body at a low cost without change in an appearance, an optical property, and the like after the pencil test. | 09-11-2008 |
| 20140155565 | HYDROPHILIC CROSSLINKED POLYMER - The present invention relates to a hydrophilic crosslinked polymer, preferably in the form of porous particles, and to the preparation and use thereof. The polymer according to the invention is produced by polymerisation from chain-forming hydrophilic vinyl ethers and crosslinking, preferably heterocyclic divinyl ethers. | 06-05-2014 |
| 526296000 |
From bromine or iodine containing monomer, dichloroethylene, trichloroethylene or tetrachloroethylene | 1 |
| 20160107979 | PROCESS FOR THE PREPARATION OF THE MONOMER PENTABROMOBENZYL ACRYLATE AND POLYMERIZATION THEREOF - A process for preparing pentabromobenzyl acrylate through the reaction of pentahalobenzyl halide with a salt of acrylic acid in a water-immiscible solvent, wherein said salt is in aqueous form and the reaction is carried out in the presence of a phase transfer catalyst. A process for polymerizing the pentabromobenzyl acrylate in halogenated aromatic solvent and the poly(pentabromobenzyl acrylate) obtained are also disclosed. | 04-21-2016 |
| 526341000 |
From acrylonitrile or methacrylonitrile | 1 |
| 20120046434 | Nanocomposite for fuel cell, method of preparing the nanocomposite, and fuel cell including the nanocomposite - Provided is a nanocomposite for the catalyst layer of a fuel cell electrode including: a carbon nanofiber; and metal catalyst particles uniformly applied to the surface of the carbon nanofiber, wherein the carbon nanofiber has a surface oxygen content of at least 0.03 calculated by the formula: Oxygen content=[atomic percentage of oxygen/atomic percentage of carbon] using atomic percentages of oxygen and carbon, respectively calculated from an area of an oxygen peak having a binding energy of 524 to 540 eV, an area of a nitrogen peak having a binding energy of 392 to 404 eV, and an area of a carbon peak having a binding energy of 282 to 290 eV in X-ray photoelectron spectroscopy. The nanocomposite has high surface oxygen content and has metal catalyst nano particles densely and uniformly distributed on the outer wall of the carbon fibers, thereby having high electrochemical efficiency. | 02-23-2012 |
