101 |
Pseudothermoplastic, self-crosslinking composites |
US14360442 |
2012-11-06 |
US09169363B2 |
2015-10-27 |
Friedrich Georg Schmidt; Stefan Hilf |
In the present process, reversibly crosslinking composites or storage-stable prepregs are produced by means of a hetero Diels-Alder reactions (HDA,) for example of PMMA polymers. At slightly elevated temperature, these prepregs can be reversibly decrosslinked again by a retro hetero Diels-Alder reaction so that they become moldable. The back-reaction to products which are again crosslinked or high molecular weight then takes place at room temperature. |
102 |
Method and apparatus for compacting powders |
US14513551 |
2014-10-14 |
US09102115B1 |
2015-08-11 |
William H. Wiggins |
An apparatus for compacting a powder includes a feed section (20), a compaction section (21), a discharge section (22), and a conveyor belt (103) extending through the feed, compaction, and discharge sections to convey powder through those sections. The feed section receives an incoming powder onto the conveyor belt. The compaction section compresses the incoming powder on the conveyor belt between two plates (8, 9) to provide a compacted powder. The top plate (8) may be pressed downward toward the bottom plate (9), the bottom plate may be pressed upward toward the top plate, or both. The discharge section receives the compacted powder from the compaction section on the conveyor belt. End plates (16) and side plates (11) confine the incoming powder during compaction. |
103 |
PROFILES FOR PRECURSORS TO POLYMERIC MATERIALS |
US14621216 |
2015-02-12 |
US20150151453A1 |
2015-06-04 |
James Dempster |
Methods for obtaining a profile for a batch, or lot, of a precursor material and using the profile while processing the precursor material to form a polymer are disclosed. In such a method, a process profile that corresponds to the characteristics of a particular precursor material (e.g., the batch, etc.) may be generated. That process profile may then be used to cause a material processing system to process the precursor material in a manner that accounts for differences between that precursor material and a “standard” precursor material, while providing a polymer and, optionally, a film of “standard” quality. Apparatuses and systems that are configured to obtain profile data for a batch of precursor material, generate or modify a process profile based on the profile data and use the process profile to form a polymer are also disclosed. |
104 |
Production method of polyarylene sulfide, cyclic polyarylene sulfide pellet and production method thereof |
US14381803 |
2013-02-27 |
US09029484B2 |
2015-05-12 |
Akinori Kanomata; Yosuke Nishimura; Shunsuke Horiuchi; Shu Kaiho; Kazusada Takeda; Koji Yamauchi; Junya Suzuki |
A production method includes a process (I) of heating a cyclic polyarylene sulfide composition under reduced pressure and a process (II) of heating and polymerizing a cyclic polyarylene sulfide composition. This simple method allows for production of a polyarylene sulfide of the higher molecular weight and can produce a polyarylene sulfide having a narrow molecular weight distribution, low gas generation and high industrial usability. Additionally, pelletization after the process (I) can produce a cyclic polyarylene sulfide pellet having ease of conveyance, excellent molding processability, less gas generation amount and high industrial usability. |
105 |
PRODUCTION METHOD OF POLYARYLENE SULFIDE, CYCLIC POLYARYLENE SULFIDE PELLET AND PRODUCTION METHOD THEREOF |
US14381803 |
2013-02-27 |
US20150057429A1 |
2015-02-26 |
Akinori Kanomata; Yosuke Nishimura; Shunsuke Horiuchi; Shu Kaiho; Kazusada Takeda; Koji Yamauchi; Junya Suzuki |
A production method includes a process (I) of heating a cyclic polyarylene sulfide composition under reduced pressure and a process (II) of heating and polymerizing a cyclic polyarylene sulfide composition. This simple method allows for production of a polyarylene sulfide of the higher molecular weight and can produce a polyarylene sulfide having a narrow molecular weight distribution, low gas generation and high industrial usability. Additionally, pelletization after the process (I) can produce a cyclic polyarylene sulfide pellet having ease of conveyance, excellent molding processability, less gas generation amount and high industrial usability. |
106 |
MOLD AND MOLDING APPARATUS FOR EMBEDDING BIOLOGICAL SPECIMEN IN A BLOCK AND RELATED METHODS |
US14377854 |
2013-12-17 |
US20150008616A1 |
2015-01-08 |
Alex Pasternak; Keren Schweizer |
A mold for producing a biological tissue embedded in a block of an embedding material is provided. The mold comprises a compartment having a compartment floor and a depression extending downwards from the compartment floor. A molding apparatus, comprising a mold and a press for pressing a sample sheet onto the compartment floor of the mold is provided. The press comprises a foot configured to enter at least partially into the compartment and press a sample tissue, at least partially into the depression. A method of embedding a biological tissue in an embedding material using a mold as described herein is provided. A cleaning device configured for removing excess embedding materials from the press of the molding apparatus is provided. |
107 |
METHOD AND APPARATUS FOR CONTINUOUS RESIN DEGASSING |
US14005846 |
2011-04-06 |
US20140013947A1 |
2014-01-16 |
Xiaoming Liu |
An apparatus and method for the treatment of a resin to remove gas from the resin are provided. The apparatus can be operated continuously so that multiple amounts of resin can be consecutively degassed until the overall desired amount of resin has been provided. Thus, batch treatment at one time of the entire desired amount of resin for degassing can be avoided. The gases removed from the resin can be readily captured such that e.g., further treatment can occur. |
108 |
Methods and Apparatuses for Consolidating Elastic Substrates |
US13929857 |
2013-06-28 |
US20140001681A1 |
2014-01-02 |
Mark Mason Hargett; Jeffrey Alan Darner |
The method includes rotating a drum about an axis of rotation. A discrete length of elastic substrate is positioned on the outer circumferential surface of the rotating drum, wherein the discrete length of elastic substrate is in a stretched state and defines a first length. The discrete length of elastic substrate may be defined by a first end region, a second end region, and a central region separating the first and second end regions. The method may comprise applying vacuum pressure to the first, second, and central regions of the discrete length of elastic substrate. Vacuum pressure may be reduced on the first and second end regions such that the discrete length of elastic substrate consolidates to a second length that is less than the first length. |
109 |
PROCESS FOR MANUFACTURING COMPOSITE MATERIALS |
US13634988 |
2011-03-15 |
US20130005205A1 |
2013-01-03 |
Emilie Fisset; John Ellis |
The invention relates to a prepreg comprising a structural layer of conductive fibres comprising thermosetting resin in the interstices, and a first outer layer of resin comprising thermosetting resin, and comprising a population of conductive free filaments located at the interface between the structural layer and the outer resin layer which, when cured under elevated temperature, produces a cured composite material comprising a cured structural layer of packed conductive fibres and a first outer layer of cured resin, the outer layer of cured resin, comprising a proportion of the population of conductive free filaments dispersed therein, and to a process for manufacturing prepregs wherein the electrically conductive fibres pass a fibre disrupting means to cause a proportion of the fibres on an external face of the sheet to become free filaments. |
110 |
METHOD AND ARRANGEMENT TO IMPROVE THE PRODUCTION OF A BLADE |
US13014063 |
2011-01-26 |
US20110183029A1 |
2011-07-28 |
Karsten Schibsbye |
A method and an arrangement to improve the production of a blade, preferably to improve the production of a wind turbine blade is provided. A first container includes a resin. The first container is connected with a degas-system, thus the resin is provided to the degas-system. The degas-system is constructed and designed in a way that the amount of gas within the provided resin is reduced. Thus gas-reduced resin is produced, which is mixable with a hardener. The resin-hardener-mixture is applicable for an injection into an enclosed composite structure, which is used to produce the blade. |
111 |
Thin film in-line degasser |
US10914549 |
2004-08-09 |
US07717982B2 |
2010-05-18 |
Kent A. Young; Stephen C. Pegram; Kerry T. Sanders |
The present invention relates to a stackable packing element for use in degassing liquid ophthalmic lens monomer and a lens resulting therefrom. One or more stackable elements can be used to form a modular degasser and implement an in-line degassing process, employing same. The stackable packing element is comprised of a body module and a removable puck component. |
112 |
Thin film in-line degasser |
US10914549 |
2004-08-09 |
US20090045532A1 |
2009-02-19 |
Kent A. Young; Stephen C. Pegram; Kerry T. Sanders |
The present invention relates to a stackable packing element for use in degassing liquid ophthalmic lens monomer and a lens resulting therefrom. One or more stackable elements can be used to form a modular degasser and implement an in-line degassing process, employing same. The stackable packing element is comprised of a body module and a removable puck component. |
113 |
Method and device for transforming crystalline or semicrystalline polymers |
US11066391 |
2005-02-28 |
US20050225010A1 |
2005-10-13 |
Joel Soulier |
A method for processing thermoplastics in a shaping device, whereby before and/or during its passage in the shaping device the thermoplastic is submitted to a static electrical field. |
114 |
Method for purifying a thermoplastic norbornene resin, a substrate using such a resin, and a magnetic recording medium using such a substrate |
US10411436 |
2003-04-10 |
US06743530B2 |
2004-06-01 |
Youich Tei; Syoji Sakaguchi; Katsunori Suzuki |
A thermoplastic norbornene resin is purified by using a cleaning liquid to eliminate organic impurities, ionic impurities, metallic impurities, and particles of the resin. The cleaning liquid is selected from 2-propanol and a mixed solvent of 2-propanol and water. A substrate for a magnetic recording medium of the invention by fabricated by injection-molding the thermoplastic norbornene resin purified by this method. A magnetic recording medium of the invention includes such a substrate, and a magnetic layer, a protective layer, and a liquid lubricant layer sequentially formed on the substrate. A method for manufacturing such a magnetic recording medium is also provided. |
115 |
Method for purifying a thermoplastic norbornene resin, a substrate using such a resin, and a magnetic recording medium using such a substrate |
US10411436 |
2003-04-10 |
US20030208017A1 |
2003-11-06 |
Youich
Tei; Syoji
Sakaguchi; Katsunori
Suzuki |
A thermoplastic norbornene resin is purified by using a cleaning liquid to eliminate organic impurities, ionic impurities, metallic impurities, and particles of the resin. The cleaning liquid is selected from 2-propanol and a mixed solvent of 2-porpanol and water. A subtrate for a magnetic recording medium of the invention is fabricated by injection-molding the thermoplastic norbornene resin purified by this method. A magnetic recording medium of the invention includes such a subtrate, and a magnetic layer, protective layer, and a liquid lubricant layer sequentially formed on the subtrate. A method for manufacturing such a magnetic recording medium is also provided. |
116 |
Method for purifying a thermoplastic norbornene resin, a substrate using such a resin, and a magnetic recording medium using such a substrate |
US10411421 |
2003-04-10 |
US20030204048A1 |
2003-10-30 |
Youich
Tei; Syoji
Sakaguchi; Katsunori
Suzuki |
A thermoplastic norbornene resin is purified by using a cleaning liquid to eliminate organic impurities, ionic impurities, metallic impurities, and particles of the resin. The cleaning liquid is selected from 2-propanol and a mixed solvent of 2-propanol and water. A substrate for a magnetic recording medium of the invention is fabricated by injection-molding the thermoplastic norbornene resin purified by this method. A magnetic recording medium of the invention includes such substrate, and a magnetic layer, a protective layer, and a liquid lubricant layer sequentially formed on the substrate. A method for manufacturing such a magnetic recording medium is also provided. |
117 |
Method and apparatus to control viscosity of molten plastics prior to a molding operation |
US09333544 |
1999-06-15 |
US06210030B1 |
2001-04-03 |
Jean-Pierre Ibar |
An apparatus and method for continuously reducing the viscosity of molten moldable polymeric material uses shear vibration under extensional flow to cause disentanglement. One or more station treatment cavities are defined by a gap composed of two closely separated surfaces in relative motion with each other at given speed and/or submitted to relative oscillations, with given frequency and amplitude to produce a shear deformation on the molten moldable material and a controlled variation of the gap dimension. The surface have a contour profile of ribs and/or bumps and/or grooves over which the molten moldable material can flow and/or can be dragged and/or is being pushed through and/or pumped through. The treatment cavities have an inlet through which the molten moldable material can pass into, and an outlet through which it can exit each treatment cavity. |
118 |
Method and apparatus for producing gas occlusion-free and void-free
compounds and composites |
US924382 |
1997-09-05 |
US6009635A |
2000-01-04 |
Victor H. Vidaurre; Jorge L. Dufeu; Wilfredo G. Bendek |
The present invention discloses a generic method for producing void and gas occlusion free materials, as well as apparatuses for batch and continuous production of same. This generic method can be utilized in the production of a wide variety of polymeric compounds and composites and specifically encompasses the two ends of the polymeric composite spectrum, that is, polymer concretes on the one hand, and fiber-reinforced polymer composites on the other. The composite materials of the present invention are characterized by visual count as being void and gas occlusion free to the level of 1 micron at 1250.times. magnification. Concomitantly, the invention produces useful polymer concrete materials which exhibit substantially improved integrity for easy machining at high speeds, and high dielectric and mechanical strength, as compared with composite materials produced by conventional methods. Thus, one particularly well-suited application for the materials of the present invention is the class of high voltage electrical insulating materials and insulators where the presence of voids, or gas occlusion flaws, may have deleterious effects, leading to their early failure. |
119 |
Process for washing powdery and/or granular resins and a washing device
therefor |
US571477 |
1990-08-23 |
US5143554A |
1992-09-01 |
Yoshinari Koyama; Daigo Shirota |
A process for washing a powdery and/or granular resin involves bringing the powdery and/or granular resin into contact with a washing liquid in a counterflow fashion in a tubular body with a plurality of static mixing elements disposed continuously in series, thereby removing impurities adhering to the powdery and/or granular resin and producing the powdery and/or granular resin with a less content of impurities. A washing device for use with the washing process contains a tubular body in which the static mixing elements are disposed continuously in series, and this construction is simpler than conventional ones and does not require a stirring power and mechanism to remove the impurities from the powdery and/or granular resin. |
120 |
Method and apparatus for diluting and activating polymer |
US912254 |
1986-09-29 |
US4747691A |
1988-05-31 |
Robert O. Hoffland |
This invention relates to a method and apparatus for diluting and activating a polymer in water. More particularly, the invention relates to the use of a stirred tank in conjunction with an aging tank that allows the polymer to uncoil or become activated in water after dilution, but prior to introduction into service. |