公开(公告)号：US11753500B2

公开(公告)日：2023-09-12

申请号：US17426228

申请日：2020-01-21

Applicant: UNITIKA LTD.

Inventor： Ayumi Yanaka ,  Yumeto Fukubayashi ,  Takatoshi Murakami

IPC: C08G59/40 ,  C08G59/42 ,  C08L63/00 ,  C08J5/24 ,  B32B27/38 ,  C08G59/02 ,  C08G59/22 ,  C08G59/32 ,  C08J5/04

CPC classification number: C08G59/4042 ,  C08G59/022 ,  C08G59/22 ,  C08G59/32 ,  C08G59/4238 ,  C08J5/04 ,  C08J5/249 ,  C08L63/00 ,  C08J2367/00 ,  C08L2201/08 ,  C08L2203/20

Abstract: The present invention provides an epoxy resin solution, from which an epoxy resin-cured product adequately excellent in heat-resisting properties and dielectric properties can be obtained with adequately good working properties ensured. The present invention relates to an epoxy resin solution containing at least a curing agent and an epoxy resin mixed in an organic solvent, wherein the curing agent comprises an imide group-containing curing agent having 1-4 imide groups and 2-4 glycidyl group-reactive functional groups in a molecule.

公开(公告)号：US20220195187A1

公开(公告)日：2022-06-23

申请号：US17603399

申请日：2020-04-17

Applicant: UNITIKA LTD.

Inventor： Miho Asai ,  Junichi Mii

IPC: C08L77/06 ,  C08J5/04 ,  F01D5/04

Abstract: A polyamide resin composition including a semi-aromatic polyamide (A) having a melting point of 290 to 330° C. and a fibrous reinforcing material (B), wherein the polyamide resin composition has an amount of creep strain of 2.0% or less in the flow direction after a lapse of 100 hours under the measurement conditions of a temperature of 100° C. and a tensile load of 75 MPa.

公开(公告)号：US11254814B2

公开(公告)日：2022-02-22

申请号：US17051943

申请日：2020-04-21

Applicant: UNITIKA LTD.

Inventor： Yutaka Nabeshima

IPC: C08L67/03 ,  B29C45/00 ,  B60Q1/04 ,  C08K5/527 ,  C08L69/00 ,  B29K67/00 ,  B29K69/00 ,  C08K5/11

Abstract: The present invention is to provide a resin composition capable of producing a molded product sufficiently excellent in hydrolysis resistance and mold release characteristics and having an excellent balance between heat resistance and fluidity, even if a heat stabilizer and a mold release agent are contained.
The present invention relates to a resin composition, comprising: (A) a polyarylate resin; (B) a melt-polymerized polycarbonate resin; (C) a specific phosphite compound; and (D) a dipentaerythritol fatty acid ester, a mass ratio (A/B) of the (A) polyarylate resin and the (B) melt-polymerized polycarbonate resin being from 2/98 to 98/2, and the resin composition having a Vicat softening point of 140° C. or higher.

公开(公告)号：US20220033584A1

公开(公告)日：2022-02-03

申请号：US17276216

申请日：2019-10-23

Applicant: UNITIKA LTD.

Inventor： Makoto Nakai ,  Yuki Takubo ,  Yusuke Yagi

IPC: C08G69/28

Abstract: A flexible polyamide including a unit formed from an aliphatic dicarboxylic acid (A1) having 18 or more carbon atoms and/or a unit formed from an aliphatic diamine (B1) having 18 or more carbon atoms, wherein the polyamide has a total content of 10 to 90% by mass of the unit formed from (A1) and the unit formed from (B1) and has a melting point of 240° C. or higher.

公开(公告)号：US20210403710A1

公开(公告)日：2021-12-30

申请号：US17289669

申请日：2019-10-28

Applicant: UNITIKA LTD.

Inventor： Yukinari NEGI ,  Yoshihito KISARA ,  Masako TANAKA

IPC: C08L77/00 ,  C08K3/36 ,  C08K3/26 ,  C08K3/34

Abstract: The present invention provides a thermoplastic resin pellet capable of obtaining a molded body which is excellent in metallic coloring properties, surface smoothness property, and flow mark suppressing properties, and has a sufficient metallic appearance. The present invention relates a metallic-tone thermoplastic resin pellet comprising 100 parts by weight of a thermoplastic resin (A), 0.5 to 10 parts by mass of metallic particles (B), and 0 to 10 parts by mass of plate-like, fibrous and/or granular filler (C), wherein the pellet has a cylindrical shape having a circular or elliptical cross section perpendicular to the longitudinal direction, and the pellet has a length of 0.5 to 2.8 mm and a cross-sectional major diameter of 0.5 to 2.8 mm.

公开(公告)号：US11040515B2

公开(公告)日：2021-06-22

申请号：US16333711

申请日：2017-09-20

Applicant: UNITIKA LTD.

Inventor： Mari Shimizu ,  Kouhei Tanaka ,  Nobuyasu Okumura

IPC: B32B7/06 ,  B29C55/02 ,  B29C55/14 ,  B29C55/12 ,  B32B27/30 ,  B32B27/36 ,  B32B27/00 ,  B32B27/26 ,  C08J5/18 ,  B29K29/00 ,  B29K67/00 ,  B29K33/00

Abstract: There is provided a release film comprising a substrate film and a resin layer provided on at least one surface of a substrate film, wherein the resin layer comprises 100 parts by mass of an acid-modified polyolefin resin, 1 to 20 parts by mass of a crosslinking agent and 10 to 1,000 parts by mass of a polyvinyl alcohol having a saponification rate of 99% or lower.

公开(公告)号：US10954396B2

公开(公告)日：2021-03-23

申请号：US16753569

申请日：2018-10-01

Applicant: UNITIKA LTD.

Inventor： Hirotaka Takeda ,  Chikako Yamada

IPC: C09D5/24 ,  C09D7/40 ,  C09D7/20 ,  H01B1/22 ,  B22F1/00 ,  C09D177/00 ,  C08K7/06 ,  C08K3/08

Abstract: The present invention provides a nickel nanowires-containing paste having an adequately high thermal curing rate even under comparatively low temperature, which is excellent in functional properties such as an electrical conductivity, strength properties (in particular, a bending property), a water-resisting property, a salt water-resisting property and electromagnetic-wave shielding properties, from which a cured structure excellent in an electrical conductivity can be obtained even if it is stored for a long time. The present invention relates to a paste comprising nickel nanowires, an alkoxy-alkylated polyamide and a glycol.

公开(公告)号：US20200317911A1

公开(公告)日：2020-10-08

申请号：US16303911

申请日：2017-05-18

Applicant: UNITIKA LTD.

Inventor： Yutaka NABESHIMA

IPC: C08L67/03 ,  C08L69/00 ,  C08K3/36 ,  C08K5/134 ,  C08K5/524 ,  G03B17/12

Abstract: The present invention provides a resin composition excellent in a molding stability, which can be molded into a molded article excellent in a dust generation resistance, a heat resistance, a dimensional stability, and an external appearance, and a molded article obtained by molding the same. The present invention relates to a resin composition comprising a polyarylate resin, a polycarbonate resin, silica particles having an average particle diameter of 0.5 to 10 μm and a phosphite ester compound shown by a general formula (I), wherein a mass ratio of the polyarylate resin and the polycarbonate resin is 25/75 to 90/10, a content of the silica particles is 5 to 60 parts by mass with respect to 100 parts by mass of a total amount of the polyarylate resin and the polycarbonate resin and a content of the phosphite ester compound is 0.01 to 1 part by mass with respect to 100 parts by mass of a total amount of the polyarylate resin and the polycarbonate resin: (wherein m1 and m2 respectively and independently are an integer of 0 to 5; R1 and R2 respectively and independently represent an alkyl group having 1 to 12 carbon atoms, which may have a substituent group; four R3s respectively and independently represent an alkylene group having 1 to 5 carbon atoms).

公开(公告)号：US10400446B2

公开(公告)日：2019-09-03

申请号：US14914045

申请日：2014-08-26

Applicant: UNITIKA LTD.

Inventor： Nobutaka Takeuchi ,  Hitoshi Kourogi ,  Yuki Horikoshi

IPC: D06M15/233 ,  D06M15/263 ,  B32B5/02 ,  B32B5/26 ,  G01N21/59 ,  B32B27/30 ,  E04B1/94 ,  A47H23/08 ,  B32B27/12 ,  D06M15/327 ,  G01N21/84 ,  D06M101/00

Abstract: The present invention addresses the problem of providing a transparent, noncombustible sheet having excellent transparency but minimized blurring and color bleeding. The means for addressing the problem is a transparent noncombustible sheet including a glass fiber fabric and a cured resin composition layer impregnated into the glass fiber fabric; wherein, the cured resin composition layer is formed by curing a resin composition including a curable resin and a bifunctional (meth)acrylate, total light transmittance of the transparent noncombustible sheet being no less than 80%, and haze of the transparent noncombustible sheet being no more than 30%.

公开(公告)号：US20190144329A1

公开(公告)日：2019-05-16

申请号：US16097033

申请日：2016-11-01

Applicant: NIPPON SHEET GLASS COMPANY, LIMITED ,  UNITIKA LTD. ,  UNITIKA GLASS FIBER CO., LTD.

Inventor： Yoshiyuki INAKA ,  Takaharu MIYAZAKI ,  Yoshito NAWA ,  Daisuke NISHINAKA ,  Tomoki SEKIDA

IPC: C03C3/093 ,  C03C3/091 ,  C03C4/16 ,  C03C13/00 ,  C03B37/02 ,  D03D15/00 ,  D03D15/12

Abstract: A glass composition of the present disclosure includes, in wt %, 50≤SiO2≤54, 25≤B2O3≤30, 12≤Al2O3≤15, 0.5≤MgO≤1.9, 3.0≤CaO≤5.5, 0≤ZnO≤3.5, 0.1≤Li2O≤0.5, and 0.1≤Na2O≤0.3, and has a permittivity of less than 5.0 at a frequency of 1 MHz. The glass composition of the present disclosure has a low permittivity. The use of this glass composition can reduce the occurrence of devitrification and the inclusion of bubbles in glass fibers to be formed or in a shaped glass material to be formed even when the glass fibers have a small fiber diameter or the shaped glass material has a small thickness.