公开(公告)号：US11319426B2

公开(公告)日：2022-05-03

申请号：US16605908

申请日：2018-04-25

Applicant: KONOSHIMA CHEMICAL CO., LTD.

Inventor： Masashi Nakamura

IPC: C08K3/26 ,  C01F5/24 ,  C08F14/06

Abstract: Provided is a novel magnesium carbonate. The magnesium carbonate has a zeta potential of 5 mV or more and a BET specific surface area of 25 m2/g or more. Such a magnesium carbonate can be used as a resin additive, etc.

公开(公告)号：US09982195B2

公开(公告)日：2018-05-29

申请号：US14768202

申请日：2013-08-12

Applicant: Konoshima Chemical Co., Ltd.

Inventor： Seiji Matsui

IPC: C09K21/02 ,  C01F5/22 ,  C08K9/04

CPC classification number: C09K21/02 ,  C01F5/22 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2006/12 ,  C08K9/04 ,  C08K2201/003 ,  C08K2201/006

Abstract: Provided are a flame retardant which is good in dispersibility in an organic polymeric material, and does not lower, even after mixed with an organic polymeric material, material properties thereof; a flame retardant composition; and a shaped body. The flame retardant of the present invention includes magnesium hydroxide particles subjected to a surface treatment, the particles satisfying the following (A) to (D): (A) an average particle size is 2 μm or less according to a laser diffraction method; (B) a BET specific surface area is 3 to 15 m2/g; (C) a degree of mono-dispersion is 50% or more, the degree of mono-dispersion being represented by the following equation: Degree of mono-dispersion (%)=(average primary particle size [μm] of particles according to SEM observation/average particle size [μm] of particles according to laser diffraction method)×100; and, (D) just after 1 mL of a 0.1 M solution of nitric acid is dropwise added at a dropping rate of 0.1 mL/minute to a suspension obtained by adding 1.0 g of the flame retardant to 100 mL of an aqueous mixed solution containing 0.1% by weight of each of a wetting agent and an electrolyte, pH of the suspension is 9.0 or less according to a potentiometric titration.

公开(公告)号：US11591520B2

公开(公告)日：2023-02-28

申请号：US16486634

申请日：2018-03-28

Applicant: Konoshima Chemical Co., Ltd.

Inventor： Seiji Matsui

IPC: C09K21/02 ,  C01F7/023 ,  C01F7/448 ,  C08K3/22 ,  H01B3/10 ,  H01B3/44 ,  H01B7/295

Abstract: The present invention provides alumina hydrate particles, a flame retardant and a resin composition that are each for an electric wire/cable covering material improvable in flame retardancy and mechanical properties while the covering material keeps acid resistance; such an electric wire/cable; and producing methods thereof. The alumina hydrate particles of the present invention for electric wire/cable covering material have an average particle size of 0.5 to 2.5 μm, and having a primary particle variation R of 24% or less, the variation R being represented by the following expression: primary particle variation R (%)=“standard deviationσ(μm) of major axis diameters of the primary particles”/“average value(μm) of the major axis diameters of the primary particles”×100.

公开(公告)号：US11053166B2

公开(公告)日：2021-07-06

申请号：US16565007

申请日：2019-09-09

Applicant: Konoshima Chemical Co., Ltd.

Inventor： Takagimi Yanagitani ,  Hoshiteru Nozawa ,  Hideki Yagi

IPC: C04B35/44 ,  C04B35/50 ,  G02F1/09 ,  C04B35/638 ,  C04B35/626 ,  C04B35/64

Abstract: Provided is a transparent rare earth aluminum garnet ceramic that has a highlight transmission rate and can be mass produced. The transparent rare earth aluminum garnet ceramic is represented by general formula R3Al5O12 (R is an element selected from the group consisting of rare earth elements having an atomic number of 65 to 71) and includes Si and Y as sintering aids, or is represented by general formula R3Al5O12 (R is an element selected from the group consisting of rare earth elements having an atomic number of 65 to 70) and includes Si and Lu as sintering aids.

公开(公告)号：US10012850B2

公开(公告)日：2018-07-03

申请号：US14397943

申请日：2013-04-05

Applicant: Konoshima Chemical Co., Ltd.

Inventor： Hoshiteru Nozawa ,  Hideki Yagi ,  Takagimi Yanagitani

IPC: G02F1/00 ,  G02F1/09 ,  C04B35/50 ,  C04B35/01 ,  C04B35/645 ,  B29C43/00 ,  G02B27/28 ,  B29D11/00 ,  B29K103/06

CPC classification number: G02F1/0036 ,  B29C43/003 ,  B29D11/0074 ,  B29K2103/06 ,  C04B35/01 ,  C04B35/6455 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3286 ,  C04B2235/3287 ,  C04B2235/608 ,  C04B2235/6567 ,  C04B2235/6582 ,  C04B2235/72 ,  C04B2235/764 ,  C04B2235/9653 ,  G02B27/281 ,  G02F1/09

Abstract: There is provided a rare-earth gallium garnet ceramic having a high extinction ratio and a high light transmittance. The rare-earth gallium garnet ceramic contains, as a sintering aid, 5 mass ppm or more and 500 mass ppm or less of Ge calculated as metal, and 20 mass ppm or more and 250 mass ppm or less of Al calculated as metal.

公开(公告)号：US09834659B2

公开(公告)日：2017-12-05

申请号：US14779235

申请日：2013-08-12

Applicant: Konoshima Chemical Co., Ltd.

Inventor： Seiji Matsui

IPC: C01F5/02 ,  C09C1/02 ,  C08K3/22 ,  C01F5/08 ,  C01F5/22 ,  C08K9/04 ,  C01F5/14 ,  C01F5/20

CPC classification number: C08K3/22 ,  C01F5/02 ,  C01F5/08 ,  C01F5/14 ,  C01F5/20 ,  C01F5/22 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/62 ,  C08K9/04 ,  C08K2003/222 ,  C08K2201/003 ,  C08K2201/006 ,  C09C1/028

Abstract: Provided are magnesium oxide particles which are good in dispersibility in a resin or rubber, can function sufficiently as an acid acceptor or scorch retarder, and do not lower, even after combined with a resin or rubber, material properties thereof; a resin composition; a rubber composition; and a shaped body. The magnesium oxide particles satisfying the following (A) to (C): (A) an average particle size is 5 μm or less; (B) a BET specific surface area is 20 m2/g or more and 200 m2/g or less; and (C) a screen residue by a sieve opening of 45 μm is 0.1% by weight or less.

公开(公告)号：US20200063029A1

公开(公告)日：2020-02-27

申请号：US16466260

申请日：2017-12-05

Applicant: Konoshima Chemical Co., Ltd.

Inventor： Takagimi Yanagitani ,  Katsuhiro Muramatsu ,  Atsuko Endo ,  Kazunari Shiota

IPC: C09K11/02 ,  C09K11/77 ,  C01F17/00 ,  H01L33/50 ,  H01L33/58

Abstract: Provided is a ceramic composition capable of achieving a light scattering function while maintaining optical properties at a high level. The ceramic composition comprises a fluorescence phase comprising a fluorescent material and a light-scattering phase comprising a lanthanum oxide. The lanthanum oxide may be, for example, at least one selected from LaAlO3 and La2O3. The ratio of the fluorescent material (or the fluorescence phase) to the lanthanum oxide (or the light-scattering phase), the former/the latter, may be 99.9/0.1 to 50/50 in terms of volume ratio.

公开(公告)号：US20150376507A1

公开(公告)日：2015-12-31

申请号：US14768202

申请日：2013-08-12

Applicant: KONOSHIMA CHEMICAL CO., LTD.

Inventor： Seiji Matsui

IPC: C09K21/02

CPC classification number: C09K21/02 ,  C01F5/22 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2006/12 ,  C08K9/04 ,  C08K2201/003 ,  C08K2201/006

Abstract: Provided are a flame retardant which is good in dispersibility in an organic polymeric material, and does not lower, even after mixed with an organic polymeric material, material properties thereof; a flame retardant composition; and a shaped body. The flame retardant of the present invention includes magnesium hydroxide particles subjected to a surface treatment, the particles satisfying the following (A) to (D): (A) an average particle size is 2 μm or less according to a laser diffraction method; (B) a BET specific surface area is 3 to 15 m2/g; (C) a degree of mono-dispersion is 50% or more, the degree of mono-dispersion being represented by the following equation: Degree of mono-dispersion (%)=(average primary particle size [μm] of particles according to SEM observation/average particle size [μm] of particles according to laser diffraction method)×100; and, (D) just after 1 mL of a 0.1 M solution of nitric acid is dropwise added at a dropping rate of 0.1 mL/minute to a suspension obtained by adding 1.0 g of the flame retardant to 100 mL of an aqueous mixed solution containing 0.1% by weight of each of a wetting agent and an electrolyte, pH of the suspension is 9.0 or less according to a potentiometric titration.

Abstract translation: 提供一种阻燃剂，其在有机聚合物材料中的分散性良好，即使在与有机聚合物材料混合后，其性能也不降低; 阻燃组合物; 和成形体。 本发明的阻燃剂包括经过表面处理的氢氧化镁颗粒，满足以下（A）〜（D）的颗粒：（A）根据激光衍射法的平均粒径为2μm以下; （B）BET比表面积为3〜15m 2 / g; （C）单分散度为50％以上，单分散度由下式表示：单分散度（％）=（根据SEM的颗粒的平均一次粒径[μm] 按照激光衍射法观察颗粒的平均粒径[μm]×100; 并且（D）在以0.1mL /分钟的滴加速度滴加1mL 0.1M硝酸溶液后，向通过将1.0g阻燃剂加入到含有 每个润湿剂和电解质的0.1重量％，根据电位滴定法，悬浮液的pH为9.0或更小。

公开(公告)号：US20150129816A1

公开(公告)日：2015-05-14

申请号：US14397943

申请日：2013-04-05

Applicant: Konoshima Chemical Co., Ltd.

Inventor： Hoshiteru Nozawa ,  Hideki Yagi ,  Takagimi Yanagitani

IPC: G02F1/00 ,  B29C43/00

CPC classification number: G02F1/0036 ,  B29C43/003 ,  B29D11/0074 ,  B29K2103/06 ,  C04B35/01 ,  C04B35/6455 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3286 ,  C04B2235/3287 ,  C04B2235/608 ,  C04B2235/6567 ,  C04B2235/6582 ,  C04B2235/72 ,  C04B2235/764 ,  C04B2235/9653 ,  G02B27/281 ,  G02F1/09

Abstract: There is provided a rare-earth gallium garnet ceramic having a high extinction ratio and a high light transmittance. The rare-earth gallium garnet ceramic contains, as a sintering aid, 5 mass ppm or more and 500 mass ppm or less of Ge calculated as metal, and 20 mass ppm or more and 250 mass ppm or less of Al calculated as metal.

Abstract translation: 提供了具有高消光比和高透光率的稀土镓石榴石陶瓷。 稀土镓石榴石陶瓷作为烧结助剂含有作为金属计算的5质量ppm以上且500质量ppm以下的Ge，作为金属计算为20质量ppm以上至250质量ppm以下的Al。

公开(公告)号：US20220135419A1

公开(公告)日：2022-05-05

申请号：US17573218

申请日：2022-01-11

Applicant: Konoshima Chemical Co., Ltd.

Inventor： Takagimi Yanagitani ,  Hoshiteru Nozawa

IPC: C01F17/294 ,  C04B35/50 ,  C09K5/14 ,  F25B9/14

Abstract: A cold storage material having a large thermal capacity in a ultra-low temperature range of 10 K or less and being highly durable against thermal shock and mechanical vibration. The cold storage material contains a rare earth oxysulfide ceramic represented by the general formula R2O2S in which R is one or more kinds of rare earth elements selected from La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y, and Al2O3 having a specific surface area of 0.3 m2/g to 11 m2/g is added to the cold storage material.