Class / Patent application number | Description | Number of patent applications / Date published |
522003000 | Processes of forming or modifying a solid polymer wherein specified mixing, stirring, agitating, movement of material or directional orientation is employed; or compositions therefore | 8 |
20080200577 | Method for Producing Radiation Curable Formulations with Increased Corrosion Protection on Metal Substrates, and Formulations of this Type - The invention relates to radiation-curable formulations which contain adhesion promoters containing phosphoric acid and which in the cured state afford a particular degree of corrosion control for metallic substrates, and to a process for preparing them. | 08-21-2008 |
20090137694 | METHOD OF SURFACE CROSS-LINKING SUPERABSORBENT POLYMER PARTICLES USING ULTRAVIOLET RADIATION - The present invention relates to a method of surface cross-linking superabsorbent polymer particles using UV irradiation. The method is carried out in a so-called drum reactor, which comprises a hollow drum and an irradiation source. The drum has a longitudinal axis and a cross-section. Radical former molecules are applied on the surface of superabsorbent polymer particles. These superabsorbent polymer particles are fed into the drum and are irradiated while they move within the drum, which is rotated around its longitudinal axis. The irradiation source is provided such that the radiation emitted by the irradiation source is able to reach superabsorbent polymer particles within said drum. The irradiation source for use in the method of the present invention is able to emit UV radiation of a wavelength between 201 nm and 400 nm. | 05-28-2009 |
20090197985 | METHOD OF SURFACE CROSS-LINKING SUPERABSORBENT POLYMER PARTICLES USING VACUUM ULTRAVIOLET RADIATION - The present invention relates to a method of surface cross-linking superabsorbent polymer particles using UV irradiation. The method is carried out in a so-called drum reactor, which comprises a hollow drum and an irradiation source. The drum has a longitudinal axis and a cross-section. Superabsorbent polymer particles are fed into the drum and are irradiated while they move within the drum, which is rotated around its longitudinal axis. The irradiation source is provided such that the radiation emitted by the irradiation source is able to reach superabsorbent polymer particles within said drum. The irradiation source for use in the method of the present invention is able to emit UV radiation of a wavelength between 100 nm and 200 nm. | 08-06-2009 |
20100267855 | Method and Apparatus for Continuous Production of Partially Polymerized Compositions and Polymers Therefrom - Methods and apparatus for continuous production of a partially polymerized composition according to the invention comprise those that facilitate continuously providing polymerizable composition comprising one or more monomers to an angled plane at an elevated position thereon; irradiating the polymerizable composition to form the partially polymerized composition; and continuously removing the partially polymerized composition from the angled plane at a lower position thereon, wherein the angle of the angled plane facilitates free flow of polymerizing composition from the elevated position to the lower position. | 10-21-2010 |
20110178199 | METHOD FOR PRODUCING ORGANIC COMPOUND AND ORGANIC COMPOUND OBTAINED BY THE METHOD - Disclosed herein are a reaction method and a production method of an organic compound which are capable of achieving high reaction selectivity according to the purpose and a high production rate of a target substance. The methods include at least two fluids, wherein at least one kind of the fluids is a fluid containing at least one organic compound and at least one kind of the fluids other than the above fluid is a fluid containing at least one reactant in the form of a liquid or solution, and the respective fluids join together in a thin film fluid foamed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, whereby an organic reaction is performed in the thin film fluid. | 07-21-2011 |
20110306696 | Continuous Production of Copolymers Suitable as Flow Agents - The invention relates to a process for the preparation of copolymers containing acid monomer structural units and polyether macromonomer structural units, which is carried out in a continuous mode of operation in a reactor which has
| 12-15-2011 |
20120108695 | POLYMERIZATION REACTOR FOR PRODUCING A SUPER ABSORBENT POLYMER AND METHOD FOR PRODUCING A SUPER ABSORBENT POLYMER USING THE POLYMERIZATION REACTOR - The present invention provides a polymerization reactor for producing a super absorbent polymer comprising: a reaction unit; a monomer composition supply unit being connected to the reaction unit and supplying a monomer composition solution containing a monomer, a photoinitiator, and a solvent; an agitating shaft extended in the reaction unit from one end of the reaction unit connected to the monomer composition supply unit to the other end of the reaction unit; a plurality of agitating blades installed around the agitating shaft; and a light irradiation unit providing light to the monomer composition solution furnished from the monomer composition supply unit, and a method of producing super absorbent polymers by using the same. | 05-03-2012 |
20140163129 | SINGLE AND TWIN SCREW EXTRUDERS WITH ULTRASOUND HORNS FOR DECROSSLINKING AND DEVULCANIZATION - Processes for decrosslinking crosslinked plastic and devulcanizing vulcanized rubber include advancing such materials through single screw or twin screw extruders including special ultrasonic treatment zones wherein threadless shaft (single screw) or shafts (twin screw) rotate under an ultrasonic horn having a distal end aligned with the shaft or shafts and being shaped complimentary thereto. Special arcuate (single screw) or double-arcuate ultrasonic treatment flow paths confine the materials to flow under the horn where the material is subjected to ultrasonic waves to decrosslink the material, in the case of crosslinked plastic, or devulcanize the material, in the case of vulcanized rubber, with the extrudate leaving the die as a continuous stream or rope as is typical of virgin plastic or rubber. | 06-12-2014 |