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1. 发明授权

US12077444B2 Precipitated silica with improved processing properties 有权
公开(公告)号：US12077444B2
公开(公告)日：2024-09-03
申请号：US17253197
申请日：2019-07-12
申请人： RHODIA OPERATIONS
发明人： Frédéric Colbeau-Justin , Cédric Boivin , Cyril Chomette , Thomas Chaussee , Laurent Guy
IPC分类号： C08K3/36 , C01B33/193 , C08L9/06 , C08L23/22 , B60C1/00
CPC分类号： C01B33/193 , C08L9/06 , C08L23/22 , B60C1/0016 , B60C2200/04 , C01P2004/51 , C01P2006/12 , C08K3/36
摘要： A precipitated silica for use in tire applications. In particular, a precipitated silica characterised by a CTAB surface area SCTAB greater than 140 m2/g; a width of the aggregate size distribution Ld, measured by centrifugal sedimentation, of at least 1.2; a pH of less than 5.5; and a carbon content of less than 1500 ppm.

2. 发明授权

US12037252B2 Stannous compatible silica 有权
公开(公告)号：US12037252B2
公开(公告)日：2024-07-16
申请号：US16470467
申请日：2017-12-01
申请人： Evonik Operations GmbH
发明人： Karl W. Gallis , William J. Hagar , Terry W. Nassivera , Lawrence Edward Dolan , Sanjeev Midha , Eva Schneiderman
IPC分类号： C01B33/18 , C01B33/193
CPC分类号： C01B33/193 , C01P2006/11 , C01P2006/12 , C01P2006/14
摘要： Silica particles having a BET surface area from 0.1 to 7 m2/g, a pack density from 35 to 55 lb/ft3, an Einlehner abrasion value from 8 to 25 mg lost/100,000 revolutions, a total mercury intrusion pore volume from 0.7 to 1.2 cc/g, and a stannous compatibility from 70 to 99%, are disclosed, as well as methods for making these silica particles.

3. 发明公开

US20230365419A1 BORON-CONTAINING AMORPHOUS SILICA POWDER AND METHOD OF PRODUCING SAME 审中-公开
公开(公告)号：US20230365419A1
公开(公告)日：2023-11-16
申请号：US18247242
申请日：2021-09-21
申请人： SAKAI CHEMICAL INDUSTRY CO., LTD.
发明人： Yasuyuki MURAKAMI , Satsuki MOTOISHI , Hisao KOIZUMI , Satoshi KOMORI , Hironobu OGATA
IPC分类号： C01B33/193
CPC分类号： C01B33/193 , C01P2002/02 , C01P2004/64 , C01P2004/04 , C01P2002/54 , C01P2006/12 , C01P2002/88
摘要： Provided is a boron-containing amorphous silica powder more excellent in terms of low temperature sinterability than conventional silica powders. The present invention relates to amorphous silica powder containing boron atoms, the boron-containing amorphous silica powder having an average particle size of 10 to 100 nm, as determined from 40 particles selected at random in a transmission electron micrograph, the boron-containing amorphous silica powder having a decrement in a boron content of 10 mass % or less, when fired under the following conditions:

5 to 10 g of a dried product of the boron-containing amorphous silica powder is filled into an alumina crucible, heated in the atmosphere at 200° C./hour to 1000° C. to 1100° C., maintained as it is for 5 hours, and cooled to room temperature.

4. 发明授权

US10865114B2 Process for preparing precipitated silica comprising a high compaction step 有权
公开(公告)号：US10865114B2
公开(公告)日：2020-12-15
申请号：US14386015
申请日：2013-03-21
申请人： RHODIA OPERATIONS
发明人： Sylvaine Neveu , Anne-Laure Pinault
IPC分类号： C01B33/12 , C01B33/193
CPC分类号： C01B33/124 , C01B33/193
摘要： A process for preparing precipitated silica comprising a reaction of a silicate with an acidifying agent to obtain a suspension of precipitated silica, followed by a step of separation to obtain a cake and a step of drying said cake, wherein a step of compaction of said cake at a pressure greater than 10 bars is carried out between the step of separation and the step of drying.

5. 发明申请

US20180127601A1 METHOD FOR PREPARING SILICA NANOPARTICLES 有权
公开(公告)号：US20180127601A1
公开(公告)日：2018-05-10
申请号：US15347405
申请日：2016-11-09
申请人： NATIONAL CHENG KUNG UNIVERSITY
发明人： Yen-Hua CHEN , Pin-Jung LAI , Chi-Hui LIANG
IPC分类号： C09D7/12 , C01B33/32 , C01B33/193 , B01J2/04
CPC分类号： C09D7/61 , B01J2/04 , C01B33/193 , C01B33/32 , C01P2004/64 , C08K3/36 , C08K9/00 , C09D1/00 , C09D7/67
摘要： A method for preparing silica nanoparticles includes the steps of: slowly titrating a sodium silicate solution with an acid solution to obtain a silicic acid-containing solution; continuously stirring the silicic acid-containing solution; slowly titrating the silicic acid-containing solution with the acid solution to obtain a silicic acid-enriched solution; continuously stirring the silicic acid-enriched solution; collecting the silicic acid-enriched solution as a silica nanoparticle precursor solution when a pH value of the silicic acid-enriched solution reaches a target pH value; and subjecting the silica nanoparticle precursor solution to a flame spray pyrolysis or a drying-grinding-calcining treatment.

6. 发明申请

US20170312196A1 POROUS SILICA PARTICLE AND CLEANSING COSMETIC 审中-公开
公开(公告)号：US20170312196A1
公开(公告)日：2017-11-02
申请号：US15520127
申请日：2015-11-05
申请人： JGC Catalysts and Chemicals Ltd.
发明人： Satoshi WATANABE , Naoyuki ENOMOTO , Yasutaka MIYOSHI , Michio KOMATSU
IPC分类号： A61K8/25 , A61Q19/10 , C01B33/193 , A61K8/02
CPC分类号： A61K8/25 , A61K8/0279 , A61K2800/412 , A61Q19/10 , C01B33/193 , C01P2004/03 , C01P2004/60 , C01P2004/61 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/17 , C01P2006/21
摘要： A porous silica particle optimized as the scrubbing agent is used for a cleansing cosmetic. The porous silica particle has an average circularity of 0.1 to 0.5, a pore volume of 1.0 to 2.0 ml/g, a mode diameter of 50 to 600 μm, and a ratio of the maximum particle diameter to the mode diameter of 3.0 or less. The porous silica particle moreover has a median size of 0.5 to 25 μm and the maximum particle diameter of 1 to 100 μm, after rubbing with a load of 1.0 to 1.4 KPa for 30 seconds. With the cleansing cosmetic containing this particle, the skin is rubbed by the frictional force generated by the friction with the skin at the rubbing. Therefore, the mild peeling effect for the stratum corneum is obtained and the damage of the skin and the micro damage on the stratum corneum can be prevented.

7. 发明申请

US20170304161A1 POROUS SILICA PARTICLE, METHOD FOR PRODUCING THE SAME, AND CLEANSING COSMETIC CONTAINING THE SAME 有权
公开(公告)号：US20170304161A1
公开(公告)日：2017-10-26
申请号：US15512985
申请日：2015-10-02
申请人： JGC Catalysts and Chemicals Ltd.
发明人： Satoshi WATANABE , Naoyuki ENOMOTO , Yasutaka MIYOSHI
IPC分类号： A61K8/02 , A61K8/25 , A61K8/34 , A61K8/365 , A61K8/46 , C01B33/12 , A61Q19/10 , A61K8/97 , A61K8/19 , A61K8/73 , A61K8/60 , A61K8/81 , A61K8/44
CPC分类号： A61K8/0279 , A61K8/19 , A61K8/25 , A61K8/34 , A61K8/345 , A61K8/365 , A61K8/44 , A61K8/463 , A61K8/602 , A61K8/73 , A61K8/8141 , A61K8/97 , A61K2800/28 , A61K2800/412 , A61K2800/60 , A61K2800/805 , A61Q19/10 , C01B33/12 , C01B33/18 , C01B33/193 , C01P2004/60 , C01P2004/61 , C01P2006/12 , C01P2006/14 , C01P2006/34 , C09C1/30 , C11D3/14 , C11D7/20
摘要： A porous silica particle with the small specific surface area and large pore volume, which is contained as the scrubbing agent in the cleansing cosmetics is provided. The porous silica particle has high collapsibility, and therefore the damage of the skin can be prevented. A porous silica particle according to the present invention has: an average circularity of 0.1 to 0.5; a pore volume of 0.1≦Pv

8. 发明申请

US20170073521A1 PROCESS FOR THE PREPARATION OF PRECIPITATED SILICAS, PRECIPITATED SILICAS AND THEIR USES, IN PARTICULAR FOR THE REINFORCEMENT OF POLYMERS 审中-公开
标题翻译：制备降解硅，沉淀硅和其用途的方法，特别是聚合物增强
公开(公告)号：US20170073521A1
公开(公告)日：2017-03-16
申请号：US15123545
申请日：2015-02-26
申请人： RHODIA OPERATIONS
发明人： Laurent GUY , Sylvaine NEVEU , Cédric BOIVIN , Eric PERIN , Anne-Laure PINAULT
IPC分类号： C09C1/30 , C01B33/193 , C08L9/06
CPC分类号： C09C1/3063 , B60C1/00 , C01B33/193 , C01P2006/12 , C01P2006/90 , C08K3/36 , C08K2201/006 , C08L9/06 , C08L2205/02 , C09C1/30 , C09C1/3045 , C09C1/3072
摘要： A precipitated silica having a CTAB specific surface in the range of from 50 to 300 m2/g; a BET/CTAB specific surface ratio equal to or greater than 1.3 and comprising at least one polycarboxylic acid.
摘要翻译：具有50〜300m 2 / g的CTAB比表面积的沉淀二氧化硅; BET / CTAB比表面积比等于或大于1.3并且包含至少一种多元羧酸。

9. 发明申请

US20170051154A1 PROCESS FOR THE PREPARATION OF PRECIPITATED SILICAS, PRECIPITATED SILICAS AND THEIR USES, IN PARTICULAR FOR THE REINFORCEMENT OF POLYMERS 审中-公开
标题翻译：制备降解硅，沉淀硅和其用途的方法，特别是聚合物增强
公开(公告)号：US20170051154A1
公开(公告)日：2017-02-23
申请号：US15118674
申请日：2015-02-12
申请人： RHODIA OPERATIONS
发明人： Cédric BOIVIN , Laurent GUY , Eric PERIN , Kilani LAMIRI
IPC分类号： C09C1/30 , C08K3/36 , C08L9/06 , C01B33/187
CPC分类号： C09C1/3063 , C01B33/187 , C01B33/193 , C01P2006/12 , C01P2006/22 , C04B26/04 , C04B40/0042 , C04B2111/60 , C08K3/36 , C08L9/06 , C08L2205/025 , C09C1/30 , C09C1/3045 , C09C1/3072 , C04B14/022 , C04B14/066 , C04B14/30 , C04B24/085 , C04B24/2641 , C04B2103/30 , C04B2103/608
摘要： The invention relates to a process for the preparation of a novel precipitated silica, wherein: a silicate is reacted with an acidifying agent, so as to obtain a silica suspension; said silica suspension is filtered, so as to obtain a filter cake; said filter cake is subjected to a liquefaction operation, in the absence of an aluminium compound; wherein a mixture of polycarboxylic acids is added to the filter cake, during or after the liquefaction operation. It also relates to novel precipitated silicas and to their uses.
摘要翻译：本发明涉及一种制备新型沉淀二氧化硅的方法，其中：将硅酸盐与酸化剂反应，得到二氧化硅悬浮液; 将所述二氧化硅悬浮液过滤，得到滤饼; 所述滤饼在不存在铝化合物的情况下进行液化操作; 其中在液化操作期间或之后，将多元羧酸的混合物加入到滤饼中。它还涉及新型沉淀二氧化硅及其用途。

10. 发明授权

US09567230B2 Method for preparing precipitated silica 有权
标题翻译：沉淀二氧化硅的制备方法
公开(公告)号：US09567230B2
公开(公告)日：2017-02-14
申请号：US13394320
申请日：2010-09-02
申请人： Emmanuelle Allain
发明人： Emmanuelle Allain
IPC分类号： C01B33/193
CPC分类号： C01B33/193
摘要： The invention relates to a method for preparing precipitated silica, consisting in: (i) forming a starter having a pH of between 2 and 5; (ii) simultaneously adding silicate and acid, such that the pH of the reaction medium is between 2 and 5; (iii) adding silicate until the pH is between 7 and 10; (iv) simultaneously adding silicate and acid, such that the pH is between 7 and 10; (v) adding acid until the pH is between 2.5 and 5.3; (vi) bringing the reaction medium into contact with the acid and the silicate, such that the pH is between 2.5 and 5.3; and (vii) adding silicate, such as to increase the pH to a value between 4.7 and 6.3.
摘要翻译：本发明涉及一种制备沉淀二氧化硅的方法，该方法包括：（i）形成pH为2至5的起始物; （ii）同时加入硅酸盐和酸，使得反应介质的pH在2和5之间; （iii）加入硅酸盐直到pH值在7和10之间; （iv）同时加入硅酸盐和酸，使得pH在7和10之间; （v）加入酸直到pH在2.5和5.3之间; （vi）使反应介质与酸和硅酸盐接触，使得pH在2.5和5.3之间; 和（vii）添加硅酸盐，例如将pH增加到4.7至6.3之间的值。

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