公开(公告)号：US20240083803A1

公开(公告)日：2024-03-14

申请号：US18262842

申请日：2021-01-30

Applicant: Tosoh Quartz Corporation

Inventor： Takashi TANIGUCHI ,  Chiemi ITO ,  Takaya SUZUKI ,  Yuka OBA

IPC: C03B19/06 ,  C03C3/06 ,  C03C4/02

CPC classification number: C03B19/063 ,  C03B19/066 ,  C03C3/06 ,  C03C4/02 ,  C03C2201/02 ,  C03C2204/04

Abstract: A quartz glass provides an opaque quartz glass having high light-shielding property, excellent mechanical strength and excellent cleaning resistance against hydrofluoric acid. By setting the maximum width of the amorphous bubbles existing in the opaque quartz glass to an average of 3 to 15 μm and the density to 2.15 g/cm3 or more, the mechanical strength after baking and the cleaning resistance by hydrofluoric acid are improved. The opaque quartz glass has a whiteness at a thickness of 10 mm of 75 to 90%, the reflectance of light with a wavelength of 0.24 to 2.6 μm at a thickness of 4 mm is 60 to 85%, and the bending strength after baking is 95 MPa. In addition, a foaming agent may be mixed in the opaque quartz glass. An opaque quartz glass having cleaning resistance against acid can be obtained.

公开(公告)号：US11708290B2

公开(公告)日：2023-07-25

申请号：US16984379

申请日：2020-08-04

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Matthias Otter ,  Walter Lehmann ,  Michael Hünermann ,  Nils Christian Nielsen ,  Nigel Robert Whippey ,  Boris Gromann ,  Abdoul-Gafar Kpebane ,  Matthias Söhn

IPC: C03B20/00 ,  C03B37/012 ,  C03C3/06 ,  C03B17/04 ,  C03B19/10 ,  C03C12/00 ,  C03C1/02 ,  C03B37/027

CPC classification number: C03B20/00 ,  C03B17/04 ,  C03B19/106 ,  C03B19/1095 ,  C03B37/01211 ,  C03B37/027 ,  C03C1/022 ,  C03C1/026 ,  C03C3/06 ,  C03C12/00 ,  C03B2201/04 ,  C03C2201/02 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/26 ,  C03C2201/32 ,  C03C2201/40 ,  C03C2201/54 ,  C03C2203/10 ,  C03C2203/40 ,  C03C2203/44 ,  C03C2203/50

Abstract: One aspect relates to a process for the preparation of a quartz glass body, including providing a silicon dioxide granulate, wherein the silicon dioxide granulate was made from pyrogenic silicon dioxide powder and the silicon dioxide granulate has a BET surface area in a range from 20 to 40 m2/g, making a glass melt out of silicon dioxide granulate in an oven and making a quartz glass body out of at least part of the glass melt. The oven has at least a first and a further chamber connected to one another via a passage. The temperature in the first chamber is lower than the temperature in the further chambers. On aspect relates to a quartz glass body which is obtainable by this process. One aspect relates to a light guide, an illuminant and a formed body, which are each obtainable by further processing of the quartz glass body.

公开(公告)号：US20180095219A1

公开(公告)日：2018-04-05

申请号：US15714122

申请日：2017-09-25

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Steven Bruce Dawes ,  Ming-Jun Li ,  Pushkar Tandon

IPC: G02B6/028 ,  G02B6/02 ,  G02B6/036

CPC classification number: G02B6/0286 ,  C03B37/014 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2201/42 ,  C03B2203/22 ,  C03B2203/24 ,  C03C3/06 ,  C03C2201/02 ,  C03C2201/08 ,  G02B6/02004 ,  G02B6/02009 ,  G02B6/02319 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/03611 ,  G02B6/03616 ,  G02B6/03627 ,  G02B6/0365 ,  G02B6/03694

Abstract: According to embodiments, an optical fiber may include a core portion comprising an outer radius rC and a maximum relative refractive index ΔCmax. A cladding may surround the core portion and include a low-index trench and an outer cladding. The low index trench may surround the core portion and includes an outer radius rT and relative refractive index ΔT. The outer cladding may surround and be in direct contact with the low-index trench. The outer cladding may be formed from silica-based glass comprising greater than 1.0 wt. % bromine and has a relative refractive index ΔOC, wherein Δcmas>ΔOC>ΔT. The optical fiber may have a cable cutoff of less than or equal to 1530 nm. An attenuation of the optical fiber may be less than or equal to 0.185 dB/km at a wavelength of 1550 nm.

公开(公告)号：US20180057388A1

公开(公告)日：2018-03-01

申请号：US15678680

申请日：2017-08-16

Applicant: Corning Incorporated

Inventor： Venkata Adiseshaiah Bhagavatula ,  Daniel Warren Hawtof ,  Xinghua Li ,  Gary Edward Merz ,  John Stone, III

IPC: C03B19/06 ,  C03B33/08

CPC classification number: C03B19/066 ,  C03B33/082 ,  C03B2201/02 ,  C03C3/06 ,  C03C17/06 ,  C03C2201/02 ,  C03C2201/3488

Abstract: A system and method for sintering a thin, high purity fused silica glass sheet having a thickness of 500 μm or less, includes a step of rastering a beam of a laser across a sheet of high purity fused silica soot; wherein a pattern of the rastering includes tightly spacing target locations on the sheet such that the laser sinters the soot and simultaneously forms tiny notches on a first major surface of the sheet when viewed in cross-section, wherein the tiny notches are crenellated such that at least some of the notches have generally flat bottom surfaces and at least some respective adjoining caps have generally plateau top surfaces offset from the bottom surfaces by steeply-angled sidewalls.

公开(公告)号：US20180016181A1

公开(公告)日：2018-01-18

申请号：US15633907

申请日：2017-06-27

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Yoshiaki TAMURA ,  Takemi HASEGAWA

IPC: C03B37/025 ,  C03B37/027 ,  G02B6/02

CPC classification number: C03B37/0253 ,  C03B37/01222 ,  C03B37/027 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2203/34 ,  C03B2205/40 ,  C03C3/06 ,  C03C13/045 ,  C03C25/68 ,  C03C25/70 ,  C03C2201/02 ,  C03C2201/12 ,  C03C2201/23 ,  G02B6/02042

Abstract: Provided is a method for producing a multi-core optical fiber that includes a plurality of cores made of pure silica glass and exhibits a minor transmission loss. The method for producing a multi-core optical fiber according to the present invention is a method for producing a multi-core optical fiber including a plurality of cores made of pure silica glass substantially free of Ge and a cladding surrounding the plurality of cores and made of a fluorine-containing silica glass. The multi-core optical fiber is produced by drawing an optical fiber preform at a drawing tension T satisfying the relationship 0.06 g/μm2

公开(公告)号：US20170260081A1

公开(公告)日：2017-09-14

申请号：US15452910

申请日：2017-03-08

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Yoko ISHITSUKA ,  Atsushi WATABE ,  Daijitsu HARADA ,  Masaki TAKEUCHI

IPC: C03B33/02 ,  C03C17/28 ,  C03C15/00 ,  C03C3/06

CPC classification number: C03B33/02 ,  B28D5/00 ,  C03C3/06 ,  C03C15/00 ,  C03C17/28 ,  C03C2201/02 ,  C03C2203/50 ,  C03C2218/114 ,  C03C2218/32 ,  G01B11/06 ,  G01N21/23

Abstract: Synthetic quartz glass substrates are prepared by furnishing a synthetic quartz glass block, coating two opposed surfaces of the glass block with a liquid having a transmittance of at least 99.0%/mm at a birefringence measuring wavelength, measuring a birefringence of the glass block by directing light thereacross, determining a slice thickness on the basis of the birefringence measurement and the dimensions of the substrate, and slicing the glass block at the determined slice thickness.

公开(公告)号：US20150218047A1

公开(公告)日：2015-08-06

申请号：US14174439

申请日：2014-02-06

Applicant: Guangjun Xu ,  Robert Koch

Inventor： Guangjun Xu ,  Robert Koch

IPC: C03C25/66 ,  C03B32/02 ,  C03B20/00 ,  C03B17/04

CPC classification number: C03B20/00 ,  C03B17/04 ,  C03B32/00 ,  C03B2201/03 ,  C03B2201/30 ,  C03C3/06 ,  C03C23/0075 ,  C03C2201/02 ,  C03C2201/30 ,  C03C2203/10 ,  C03C2203/52

Abstract: A method for forming high purity silica articles. The high purity silica articles can be particularly suitable for forming packaging such as packaging for pharmaceutical applications. The method for forming high purity silica articles can comprise, in one embodiment, (a) forming a fused quartz melt from a SiO2 raw material; (b) forming a quartz tube from the fused quartz melt; (c) treating the quartz tube with an acid composition; (d) heat treating the quartz tube subsequent to treating with the acid composition; and (e) optionally treating the quartz article with an acid composition subsequent to the heat treating operation. The method can enhance the purity of silica glass articles and products made therefrom.

Abstract translation: 一种形成高纯度二氧化硅制品的方法。 高纯度二氧化硅制品可以特别适用于形成用于制药应用的包装的包装。 在一个实施方案中，形成高纯度二氧化硅制品的方法可以包括（a）从SiO 2原料形成熔融石英熔体; （b）从熔融石英熔体形成石英管; （c）用酸组合物处理石英管; （d）用酸组合物处理之后对石英管进行热处理; 和（e）任选地在热处理操作之后用酸组合物处理石英制品。 该方法可以提高石英玻璃制品的纯度和由其制成的产品。

公开(公告)号：US20150086630A1

公开(公告)日：2015-03-26

申请号：US14037211

申请日：2013-09-25

Applicant: i SONIC Medical Corporation

Inventor： Pierre Bitoun

IPC: A61K9/16

CPC classification number: A61K49/0013 ,  A61B5/0093 ,  A61K9/0048 ,  A61K9/1652 ,  A61K49/0004 ,  C03C12/02 ,  C03C2201/02

Abstract: Microspheres, typically sterile, inert, silica glass microspheres, are dispersed in a carrier suitable for use relative to the object to be imaged and analyzed. In the case of ophthalmic imaging, an ophthalmically-acceptable gel is used and the resulting composition is dispensed into a mammalian eye. The gel and microspheres dispersed therein coat and conform to the surface of the eye. The microspheres enhance reflectance from the eye which improves signal-to-noise ratio and improves imaging quality.

Abstract translation: 微球通常是无菌的，惰性的，二氧化硅玻璃微球，分散在相对于待成像和分析的物体适合使用的载体中。 在眼科成像的情况下，使用眼科可接受的凝胶，并将所得组合物分配到哺乳动物眼睛中。 分散在其中的凝胶和微球涂覆并符合眼睛的表面。 微球增强了眼睛的反射率，提高了信噪比，提高了成像质量。

公开(公告)号：US07841211B2

公开(公告)日：2010-11-30

申请号：US10535935

申请日：2003-11-28

Applicant: Tatsuhiro Sato ,  Takahiro Kaitou ,  Akira Fujinoki ,  Toshiyuki Kato ,  Tohru Segawa ,  Nobumasa Yoshida

Inventor： Tatsuhiro Sato ,  Takahiro Kaitou ,  Akira Fujinoki ,  Toshiyuki Kato ,  Tohru Segawa ,  Nobumasa Yoshida

IPC: C03B20/00 ,  C03B19/14

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/20 ,  C03B2201/24 ,  C03C2201/02 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/24 ,  C03C2201/26

Abstract: First of all, there is provided a production process of a synthetic quartz glass which has less impurity, has a high-temperature viscosity characteristic equal to or more than that of a natural quartz glass, and hardly deforms even in a high-temperature environment, and especially a production process of a highly heat resistant synthetic quartz glass which is free from the generation of bubbles and is dense. Secondly, there is provided a highly heat resistant synthetic quartz glass body which is easily obtained by the production process of the present invention, and especially a transparent or black quartz glass body which is free from the generation of bubbles, is dense, has high infrared absorption rate and emission rate, and has an extremely high effect for preventing diffusion of alkali metal. The process is a process of producing a highly heat resistant quartz glass body having an absorption coefficient at 245 nm of 0.05 cm−1 or more, and the silica porous body was subjected to a reduction treatment, followed by baking, thereby forming a dense glass body.

Abstract translation: 首先，提供了杂质少，具有等于或高于天然石英玻璃的高温粘度特性的合成石英玻璃的制造方法，即使在高温环境下也几乎不变形， 特别是高度耐热的合成石英玻璃的生产过程，其不产生气泡并且致密。 其次，提供了通过本发明的制造方法容易获得的高耐热性合成石英玻璃体，特别是不产生气泡的透明或黑色石英玻璃体，具有高红外 吸收率和排放率，对防止碱金属的扩散具有极高的效果。 该方法是制造吸收系数在245nm为0.05cm -1以上的高耐热性石英玻璃体的工序，对二氧化硅多孔体进行还原处理，然后进行烧成，由此形成致密的玻璃 身体。

公开(公告)号：US20100183495A1

公开(公告)日：2010-07-22

申请号：US12667796

申请日：2008-06-16

Applicant: Kai Schumacher ,  Christian Schulze-Isfort

Inventor： Kai Schumacher ,  Christian Schulze-Isfort

IPC: C01B33/12

CPC classification number: C03C12/00 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/80 ,  C03C2201/02 ,  C03C2201/32 ,  C03C2201/3476 ,  C03C2201/42 ,  C09C1/3036

Abstract: Process for preparing a silicon dioxide granule having a specific surface area of less than 1 m2/g and a proportion of impurities of less than 50 ppm, in which a) a silicon dioxide powder with a tamped density of 15 to 190 g/l, b) is compacted to slugs which are subsequently crushed, the slug fragments having a tamped density of 210 to 800 g/l, and c) the slug fragments are treated with one or more reactive compounds at 400 to 1100° C.

Abstract translation: 制备比表面积小于1m 2 / g的二氧化硅颗粒和小于50ppm的杂质比例的二氧化硅颗粒的方法，其中a）捣实密度为15至190g / l的二氧化硅粉末， b）被压实成随后被粉碎的块塞，碎块碎片具有210至800g / l的夯实密度，和c）在140至1100℃下用一种或多种反应性化合物处理段状碎片。