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公开(公告)号：US11965072B2
公开(公告)日：2024-04-23
申请号：US18015180
申请日：2022-03-25
Applicant: UNITIKA LTD.
Inventor： Yuki Aoyama , Takashi Okabe , Shuhei Yamane , Tomoko Yamanaka
CPC classification number: C08J5/18 , B29C55/12 , B29C71/02 , B32B15/088 , B32B17/10724 , B32B27/34 , B32B2250/02 , B32B2307/558 , B32B2307/734 , B32B2457/20 , C08J2377/10
Abstract: Provided is a semiaromatic polyamide fil having an average linear expansion coefficient in the width direction, measured under conditions of 20 to 125° C., of −90 to 0 ppm/° C.
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公开(公告)号：US20230113079A1
公开(公告)日：2023-04-13
申请号：US17915219
申请日：2021-03-26
Applicant: UNITIKA LTD. , NIPPON ESTER CO., LTD. , UNITIKA TRADING CO., LTD.
Inventor： Goro Araki , Hiroshi Ashihara , Hazumu Nagano
IPC: C08G63/183
Abstract: To provide a biaxially stretched polyester resin film that has excellent properties equal to or better than those of biaxially stretched polyester film that does not use recycled raw material, and in particular that has an excellent flexural resistance in low-temperature environments. A biaxially stretched polyester resin film that characteristically satisfies both of the following properties (1) and (2): (1) in differential scanning calorimetry (DSC), after heating from 25° C. to 300° C. at a heating rate of 20° C./minute and holding for 10 minutes at 300° C., the temperature of crystallization during cooling at a cooling rate of 40° C./minute is 160° C. to 180° C.; and (2) the number of pinholes after the execution of 200 repetitive cycles of a flexural fatigue test in a −10° C. atmosphere using a Gelbo Flex Tester is not more than 10/500 cm2.
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公开(公告)号：US20220402811A1
公开(公告)日：2022-12-22
申请号：US17880202
申请日：2022-08-03
Inventor： Aya NAKAMURA , Hidetoshi FUKUCHI , Junji KURACHI , Riku SAWAI , Takaharu MIYAZAKI , Yoshito NAWA , Kohji HATTORI
Abstract: The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40≤SiO2≤60, 25≤B2O3≤45, 0
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公开(公告)号：US11525220B2
公开(公告)日：2022-12-13
申请号：US16605385
申请日：2018-04-18
Applicant: UNITIKA LTD.
Inventor： Kazutoshi Hanaya , Masaya Akao , Yusuke Nagatsuka
Abstract: An object of the present invention is to provide a process for producing fiberous board with which fiberous board exhibiting high bending strength and high stiffness at a wide range of heating temperatures and a wide range of compressing and heating times. In the present invention, fiberous board having an initial flexural modulus of at least 300 MPa in three point bending test is obtained by forming a web by correcting sheath-core composite fibers of which a core component is formed from a copolymer of ethylene glycol and terephthalic acid and the sheath component is formed from ethylene glycol, adipic acid, terephthalic acid, isophthalic acid; and/or diethylene glycol. The web is then compressed in a direction of thickness and heated, so that the sheath component softens and melts and the sheath-core composite fibers are melt bonded together and molded into a flat plate shape.
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公开(公告)号：US20220387935A1
公开(公告)日：2022-12-08
申请号：US17773203
申请日：2020-10-02
Applicant: UNITIKA LTD.
Inventor： Kuniko INOUE
Abstract: The filter module case includes a casing, a cap, a first layer, and a second layer. The casing has a cylindrical shape. The cap has a cylindrical shape and defines a passage providing communication between the inside and the outside of the casing and receives an end portion of the casing and is bonded to the casing. The first layer is closer to an end and faces an outer peripheral surface of the casing and the inner wall surface of the cap. The second layer is closer to the center and faces the outer peripheral surface of the casing and the inner wall surface of the cap. The casing and the cap have organic solvent resistance. The first layer is formed of a first adhesive with organic solvent resistance. The second layer is formed of a second adhesive that has an affinity for hard-to-adhere materials and has a higher elasticity.
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Patent Agency Ranking
公开(公告)号：US20220371945A1
公开(公告)日：2022-11-24
申请号：US17880199
申请日：2022-08-03
Inventor： Aya NAKAMURA , Hidetoshi FUKUCHI , Junji KURACHI , Riku SAWAI , Takaharu MIYAZAKI , Yoshito NAWA , Kohji HATTORI
Abstract: The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt %, for example, 40≤SiO2≤60, 25≤B2O3≤45, 0
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公开(公告)号：US20220073731A1
公开(公告)日：2022-03-10
申请号：US17424319
申请日：2020-02-12
Applicant: UNITIKA LTD.
Inventor： Toshiki NAGAHATA , Takatoshi MURAKAMI
IPC: C08L67/03 , C08L69/00 , C08K5/5419 , C08K5/524 , C08K5/5393
Abstract: The present invention provides a polyarylate resin composition sufficiently excellent in heat resistance, transparency, heat discoloration resistance and moist heat resistance, and a molded article made of the same. The present invention relates to a polyarylate resin composition containing 0.005˜5 parts by mass of a silane compound (C) with a boiling point of 200° C. or more, based on 100 parts by mass of the total of a polyarylate resin (A) and a polycarbonate resin (B), a content ratio of the polyarylate resin (A) and the polycarbonate resin (B) being 5/95 to 95/5 (mass ratio).
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公开(公告)号：US11174191B2
公开(公告)日：2021-11-16
申请号：US16617402
申请日：2018-05-18
Inventor： Yoshiyuki Inaka , Takaharu Miyazaki , Koji Hayashi , Riku Sawai , Yoshito Nawa , Daisuke Nishinaka , Tomoki Sekida
Abstract: A glass composition of the present disclosure includes, in wt %, 50≤SiO2≤56, 20≤B2O3≤30, 10≤Al2O3≤20, 3.5≤MgO+CaO≤10, and 0≤R2O≤1.0, further includes Fe2O3, and has a permittivity of less than 5.0 at a frequency of 1 MHz. R is at least one element selected from Li, Na, and K. The glass composition of the present disclosure is a low-permittivity glass composition with which the occurrence of fiber breakage during fiber forming can be reduced even when glass fibers to be formed have a small fiber diameter, and the occurrence of defects such as fiber breakage and fluffing during processing of the glass fibers can be reduced.
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公开(公告)号：US20210332240A1
公开(公告)日：2021-10-28
申请号：US17261752
申请日：2019-07-17
Applicant: UNITIKA LTD.
Inventor： Miho NAKAI , Shota NOGUCHI , Shohei KUMAZAWA , Hiroo KAMIKAWA
Abstract: The present invention provides a resin composition excellent in mechanical properties, stiffness properties, appearance characteristics, flame retardancy and metal corrosion resistance and having a small environmental load, compared to those of conventional polyamide-based flame-retardant resin compositions. The present invention related to a flame-retardant resin composition, comprising: 35 to 85% by mass of a polyamide resin (A); 0.45 to 30% by mass of a cellulose fiber (B) having an average fiber diameter of 10 μm or less; 4.5 to 40% by mass of metal phosphinate (C); and 0 to 35% by mass of a reinforcing material (D) other than the cellulose fiber.
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公开(公告)号：US20210261441A1
公开(公告)日：2021-08-26
申请号：US17253154
申请日：2019-06-18
Applicant: AD'ALL CO., LTD. , UNITIKA LTD. , OSAKA GAS CHEMICALS CO., LTD.
Inventor： Tomoyasu NAKANO , Hirokazu SHIMIZU , Akinori KAWACHI , Keiji SAKAI
IPC: C02F1/28 , B01J20/20 , B01J20/30 , C01B32/336
Abstract: There is provided an activated carbon having a high total trihalomethane filtration capacity, even in water treatment by passing water at a high superficial velocity (SV). In the activated carbon of the present invention, a pore volume A of pores with a size of 1.0 nm or less, of pore volumes calculated by the QSDFT method, is 0.3 cc/g or more, and a pore volume B of pores with a size of 3.0 nm or more and 3.5 nm or less, of pore volumes calculated by the QSDFT method, is 0.009 cc/g or more.
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