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81.发明授权公开(公告)号：US11851544B2
公开(公告)日：2023-12-26
申请号：US16983465
申请日：2020-08-03
发明人： Mitsuo Narita
摘要： There are provided a porous water-soluble nonionic cellulose ether having an average pore size of 36 μm or smaller and an average particle size of from 30 to 300 μm; and a method for continuously producing said cellulose ether comprising the steps of: pulverizing a first water-soluble nonionic cellulose ether to obtain a first pulverized product, and sieving the pulverized product through a sieve having an opening of from 40 to 400 μm to obtain a first residue-on-sieve and a first sieve-passing fraction, wherein a portion or all of the first residue-on-sieve containing particles having particle sizes smaller than and greater than the opening of the sieve is re-pulverized together with a second water-soluble nonionic cellulose ether in the step of pulverizing to obtain a second pulverized product, which is pulverized to obtain the cellulose ether as a second sieve-passing fraction containing the re-pulverized particles.
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公开(公告)号：US20230407057A1
公开(公告)日：2023-12-21
申请号：US18334457
申请日：2023-06-14
发明人： Takuya Yokosawa , Kentaro Miki
CPC分类号： C08L1/284 , C08J2301/28 , C08J7/0427 , C08J3/11
摘要： There are provided hydroxypropyl methyl cellulose (HPMC) having a high solubility in an organic solvent even when it has a degree of substitution (DS) of methoxy groups and a molar substitution (MS) of hydroxypropoxy group which are the same as those in the conventional art; and others. Specifically, there are provided HPMC having the MS of from 0.1 to 0.5; a ratio (referred to as “MF at 3-position/MS”) of 0.12 or more, as calculated by dividing a molar fraction (referred to as “MF at 3-position”) of anhydroglucose units in which only a hydroxy group at the 3-position carbon is substituted with a hydroxypropoxy group and none of hydroxy groups at the 2-position and 6-position carbons is substituted with a hydroxypropoxy group by the MS; and a viscosity at 20° C. of from 1.0 to 50 mPa·s, as determined in a 2% by mass aqueous solution; and others.
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公开(公告)号：US20230407011A1
公开(公告)日：2023-12-21
申请号：US18036211
申请日：2021-11-05
发明人： Daichi TODOROKI , Tsutomu NAKAMURA , Tomohiko SUTOU , Naoki NAKAMURA , Masanobu NISHIMINE , Tomoya OGATA
摘要： A millable-type silicone rubber composition, including: (A) 100 parts by mass of an organopolysiloxane represented by following average composition formula (1), the organopolysiloxane having polymerization degree of 100 or more, wherein a content of a low molecular siloxane contained as an impurity and having a polymerization degree of 10 or less is less than 1,000 ppm; (B) 5 to 100 parts by mass of a treated silica treated with a vinyl group-containing alkoxysilane and/or a vinyl group-containing organosilazane, the treated silica having a hydrophobicity degree of 40 or more; and (C) an effective amount of a curing agent. This provides a millable-type silicone rubber composition that yields a silicone rubber cured product with: a total of low molecular siloxane components having polymerization degree of 10 or less of less than 1,000 ppm; a small change in plasticity degree of the silicone rubber compound; and a small compression set.
R1aSiO(4-a)/2 (1)-
公开(公告)号：US20230406962A1
公开(公告)日：2023-12-21
申请号：US18334456
申请日：2023-06-14
发明人： Kentaro Miki , Takuya Yokosawa
摘要： There are provided hydroxypropyl methyl cellulose (HPMC) having high solubility even when keeping the molar substitution (MS) of hydroxypropoxy groups conventional; and others. More specifically, there are provided HPMC having a molar substitution (MS) of hydroxypropoxy groups of from 0.1 to 0.5, a ratio (referred to as “MF at 3-position/MS”) of 0.12 or more, as calculated by dividing a molar fraction (referred to as “MF at 3-position”) of anhydroglucose units in which only a hydroxy group at the 3-position carbon is substituted with a hydroxypropoxy group and none of hydroxy groups at the 2-position and 6-position carbons is substituted with a hydroxypropoxy group by the molar substitution (referred to as “MS”) of hydroxypropoxy groups, and a viscosity at 20° C. of more than 50 mPa·s and not more than 150000 mPa·s, as determined in a 2% by mass aqueous solution; and others.
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85.发明公开公开(公告)号：US20230405670A1
公开(公告)日：2023-12-21
申请号：US18460768
申请日：2023-09-05
发明人： Junya FUKUDA , Tetsuya KUME , Koichi HIROTA , Hajime NAKAMURA
IPC分类号： B22F1/00 , C21D6/00 , C22C38/06 , B22F9/04 , C22C38/00 , C22C38/04 , H01F1/04 , B22F9/02 , C22C38/02
CPC分类号： B22F1/09 , C21D6/005 , C22C38/06 , B22F9/04 , C21D6/008 , C22C38/005 , C22C38/04 , H01F1/04 , B22F9/023 , C22C38/02 , B22F2301/355 , C22C2202/02
摘要： Provided is a magnetic refrigeration material whose magnetic transition temperature has been adjusted with high accuracy and which includes at least a first predetermined magnetic refrigeration material and a second predetermined magnetic refrigeration material which differs from the first magnetic refrigeration material. The absolute value of the difference between the magnetic transition temperature of the present magnetic refrigeration material and a target magnetic transition temperature is 0.7 K or less. The content of the first magnetic refrigeration material and the content of the second magnetic refrigeration material are determined by the magnetic transition temperatures of the first magnetic refrigeration material and the second magnetic refrigeration material and by a target magnetic transition temperature of the magnetic refrigeration material.
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公开(公告)号：US20230400766A1
公开(公告)日：2023-12-14
申请号：US18207250
申请日：2023-06-08
发明人： Masahiro Fukushima
CPC分类号： G03F7/029 , G03F7/0045 , G03F7/2006
摘要： A resist composition is provided comprising as a quencher an onium salt having an anion moiety whose conjugate acid is decomposed under the action of acid and heat into carbon dioxide and an organic compound of up to 12 carbon atoms. When processed by deep-UV, EB or EUV lithography, the resist composition exhibits an improved LWR and resolution and prevents the resist pattern from collapsing.
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公开(公告)号：US20230400760A1
公开(公告)日：2023-12-14
申请号：US18456434
申请日：2023-08-25
发明人： Yu YANASE
IPC分类号： G03F1/64
CPC分类号： G03F1/64
摘要： The present invention is to provide a pellicle frame characterized by including a metal or alloy having a linear expansion coefficient of 10×10−6 (1/K) or less and further a density of 4.6 g/cm3 or less, and a pellicle characterized by including the pellicle frame as an element.
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公开(公告)号：US20230400058A1
公开(公告)日：2023-12-14
申请号：US18327554
申请日：2023-06-01
发明人： Hiroyuki OTA
IPC分类号： F16C32/04
CPC分类号： F16C32/0465
摘要： In a magnetic circuit device for a magnetic bearing that includes a permanent magnet ring constituted by a plurality of permanent magnets and a soft magnetic material ring, the circumferential uniformity of the magnetic field near an axial end surface of the permanent magnet ring is enhanced. A magnetic circuit device for a magnetic bearing includes: a permanent magnet ring that is formed by disposing a plurality of anisotropic permanent magnets in a circumferential direction; a first soft magnetic material ring that contacts an outer circumferential surface of the permanent magnet ring; and a second soft magnetic material ring that contacts an inner circumferential surface of the permanent magnet ring. Each of the plurality of anisotropic permanent magnets is magnetized parallel to a straight line that passes through a center of the anisotropic permanent magnet and that extends in a radial direction. The entirety of the outer circumferential surface of the permanent magnet ring has homopolarity, and the entirety of the inner circumferential surface of the permanent magnet ring has homopolarity and has a reverse polarity of the outer circumferential surface of the permanent magnet ring. Grooves in an axial direction are formed on at least one of the first soft magnetic material ring and the second soft magnetic material ring.
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89.发明公开公开(公告)号：US20230399721A1
公开(公告)日：2023-12-14
申请号：US18250499
申请日：2021-10-14
发明人： Koichi HIROTA , Eiichiro IWANO , Kazuaki SAKAKI
摘要： A method for collecting a heavy rare earth element from a heavy rare earth element-containing molten salt electrolysis residue and recycling the heavy rare earth element, the method includes: a step of mixing coarse particles of the molten salt electrolysis residue with a fluorinating material followed by firing, to fluorinate the coarse particles of the molten salt electrolysis residue; a step of pulverizing the coarse particles of the fluorinated molten salt electrolysis residue to obtain a powder of the molten salt electrolysis residue; and a step of mixing the powder of the molten salt electrolysis residue with R, an R-M alloy, or an R-M-B alloy (wherein R is one or more types of rare earth elements selected from the group consisting of Y, La, Ce, Nd, Pr, Sm, Gd, Dy, Tb, and Ho, M is a transition metal such as Fe or Co, and B is boron), heating and melting the mixture, separating a molten alloy from slag, and selectively extracting the heavy rare earth element into the molten alloy. Provided are a method for recycling a heavy rare earth element that is capable of efficiently recycling a heavy rare earth element that is rare in an alloy form similar to a product, and a method for recycling a rare earth magnet by using an alloy obtained by the recycling method.
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90.发明公开公开(公告)号：US20230399346A1
公开(公告)日：2023-12-14
申请号：US18034740
申请日：2021-11-01
IPC分类号： C07F7/18 , C08K9/06 , C08K7/14 , C08K5/5455 , C08J5/04
CPC分类号： C07F7/1804 , C08K9/06 , C08K7/14 , C08K5/5455 , C08J5/043 , C08J2377/00
摘要： A method for producing a composition containing compounds (A) and (B), wherein: an organosilicon compound represented by formula (3), an alkali metal cyanate represented by formula (4) and an amide compound represented by formula (5) are reacted with each other at 120° C. or less, thereby producing an organosilicon compound (A) represented by formula (1); and this organosilicon compound (A) is obtained in a composition that contains this organosilicon compound (A) and an organosilicon compound (B), which is a by-product of the above-described reaction and is represented by formula (2).
(In the formulae, each of R1 and R2 is an alkyl group or the like; X is a halogen atom; M is an alkali metal; m is an integer from 1 to 10; n is an integer from 1 to 3; and k is an integer from 1 to 10.)
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