公开(公告)号：JPH08157665A

公开(公告)日：1996-06-18

申请号：JP30115394

申请日：1994-12-05

Applicant: SHOWA DENKO KK

Inventor： KUMAKI TERUTOSHI ,  ARAKAWA TSUTOMU ,  SAKAE ICHIRO ,  NOGUCHI MASAYUKI

IPC: C08K5/17 ,  C08K5/29 ,  C08K5/31 ,  C08K5/37 ,  C08K5/38 ,  C08K5/39 ,  C08K5/40 ,  C08K5/45 ,  C08K5/46 ,  C08L23/28

Abstract: PURPOSE: To obtain the subject composition comprising a chlorinated polyolefin, a mercapto triazine compound, a vulcanization-accelerating agent and a guanidine compound in a specific ratio, excellent in scorch resistance, and useful for injection molding, extrusion molding, etc., at high temperatures. CONSTITUTION: This rubber composition comprises (A) 100 pts.wt. of a chlorinated polyolefin, (B) 0.1-5 pts.wt. of a mercapto triazine compound of formula I (R is mercapto, an alkoxy, an alkylamino, etc.,), (C) 0.10 pts.wt. of one or more kinds of vulcanization-accelerating agent selected from (i) an amine compound, its weak acid salts and adducts, (ii) a benzothiadylsulfenamide of formula II [R , R are each H, a (cyclo)alkyl, etc., or together form a (heterogeneous) ring], and (iii) a thiuramsulfide compound or a dithiocarbamic acid salt, and (D) 0.1-5 of a guanidine compound.

公开(公告)号：JPH04202216A

公开(公告)日：1992-07-23

申请号：JP33128890

申请日：1990-11-29

Applicant: SHOWA DENKO KK

Inventor： ABE KAZUTO ,  MINORIKAWA NAOKI ,  ARAKAWA TSUTOMU ,  MARUYAMA SATOSHI

IPC: C08G18/50

Abstract: PURPOSE:To obtain a resin composition which is excellent in curability and can give a cured product having transparency and a high refractive index by mixing a compound having a specified aromatic sulfide group and two hydroxyl groups with a compound having a plurality of isocyanate groups. CONSTITUTION:A high-refractive index resin composition is obtained by mixing 4,4-bis[CO--hydropoly(oxyalkylene)thio]diphenyl sulfide of the formula (wherein m and n are each 1-5; and R is H or CH3) with a compound having at least two NCO groups in the molecule (e.g. hexamethylene diisocyanate). This composition excels in curability, and a resin prepared by curing it has transparency and a high refractive index, so that it is useful in industrial fields of optical materials, spectacle lenses, coating materials, sealing materials, paints, adhesives, etc., especially in the field of optical materials.

公开(公告)号：JPH0457977A

公开(公告)日：1992-02-25

申请号：JP16183790

申请日：1990-06-20

Applicant: SHOWA DENKO KK

Inventor： MARUYAMA SATOSHI ,  OTAKE ISAO ,  MINORIKAWA NAOKI ,  ARAKAWA TSUTOMU ,  ABE KAZUTO

IPC: D06P1/60 ,  D06P5/00

Abstract: PURPOSE:To carry out the uniform dyeing of plastic lens with favorable color tone by immersing and treating plastic lens in a dying solution prepared by adding a specific carrier to an aqueous disperse dye solution. CONSTITUTION:Plastic lens, esp. made from a low water-absorptive resin material containing aromatic ring and/or halogen element is immersed and treated at 50-100 deg.C for 5sec to 1hr or so in a dyeing bath containing a disperse dye, formulated with a carrier consisting of a propylene glycol monomethyl ether of formula I R is 1-3C alkyl; R is CH2-CH(CH3) or CH2CH2CH2; (n) is 1-2) and/or compound of formula II [R and R are each H or 1-3C alkyl; R is of formula III or formula IV (R is H or 1-3C alkyl); where, R , R and R are not H at the same time; (m) is 1-2)] (e.g. 3-methoxy-1,2-propanediol), thus accomplishing the objective uniform dyeing of the lens. The lens thus dyed is suitable as sunglass, etc.

公开(公告)号：JPH03163120A

公开(公告)日：1991-07-15

申请号：JP30356389

申请日：1989-11-22

Applicant: SHOWA DENKO KK

Inventor： ARAKAWA TSUTOMU ,  MINORIKAWA NAOKI ,  MARUYAMA SATOSHI ,  YOSHIDA HARUO ,  TAKOSHI HIROYUKI

IPC: G03F7/004 ,  C08F290/00 ,  C08F299/00 ,  G03F7/038

Abstract: PURPOSE:To prepare the title compsn. having an excellent curability and giving a cured product with a high refractive index and low water absorption by compounding a specific diphenyl sulfide compd. and a specific polythiol compd. as the essential components. CONSTITUTION:The title compsn. is prepd. by compounding as the essential components 4,4'-bis[omega-(meth)acryloyl(polyoxyalkylene)thio]diphenyl sulfide compd. of formula I (wherein R1 and R2 are each H or CH3; and m and n are each 1-5) and a polythiol compd. of formula II (wherein R is a polyvalent org. group; and n is an integer of 2 or higher) (e.g. pentaerithritol tetrathiopropionate). The compsn. has an excellent curability and gives a cured product with high impact strength and high refractive index and a low water absorption, so that it is useful for an optical material as well as for a coating material, sealant, adhesive, etc.

公开(公告)号：JPH0354226A

公开(公告)日：1991-03-08

申请号：JP19020389

申请日：1989-07-21

Applicant: SHOWA DENKO KK

Inventor： MINORIKAWA NAOKI ,  ARAKAWA TSUTOMU ,  MARUYAMA SATOSHI ,  YOSHIDA HARUO ,  TAKOSHI HIROTAKA

IPC: C08G75/00 ,  C08G75/02 ,  C08G75/04 ,  C08G75/26 ,  G02B1/04

Abstract: PURPOSE:To prepare a curable compsn. giving a cured product excellent in the optical homogeneity and low water absorption properties by reacting 4,4'-bis- methacryloylthio)diphenyl sulfide with a specific polythiol in another polymerizable monomer. CONSTITUTION:4,4'-Bis(methacryloylthio)diphenyl sulfide of formula I is reacted with a polythioether of formula II (wherein R is an org. group comprising an aliph. or arom. hydrocarbon group; and n is 2 or higher) (e.g. ethylene glycol dithioglycolate) in such an amt. that the equivalent ratio of the mercapto group of the polythioether to the methacryloyl group of the sulfide is 0.02-1.01 in another polymerizable monomer (e.g. styrene) in the presence of a basic catalyst (e.g. diethylamine) and a solvent at 0-100 deg.C to produce a curable compsn. contg. a prepolymer having a polythioether backbone formed by the reaction of the sulfide with the polythioether and the polymerizable monomer.

公开(公告)号：JPH02120305A

公开(公告)日：1990-05-08

申请号：JP27322288

申请日：1988-10-31

Applicant: SHOWA DENKO KK

Inventor： ARAKAWA TSUTOMU ,  MINORIKAWA NAOKI ,  MARUYAMA SATOSHI ,  TAKOSHI HIROTAKA ,  YOSHIDA HARUO

IPC: G02B1/04 ,  C08F220/38 ,  C09D4/00 ,  C09D4/02 ,  C09J4/02

Abstract: PURPOSE:To obtain a curable compsn. with excellent curability and providing a cured product with high refractive index, excellent heat resistance, low water- absorbing properties and optical uniformity by compounding 1,4- dimercaptophenyl dimethacrylate with another vinyl monomer. CONSTITUTION:A compsn. with excellent curability is obtd. by compounding 10-90 pts.wt. 1,4-dimercaptophenyl dimethacrylate of the formula with 90-10 pts.wt. other vinyl monomer copolymerizable with this monomer (e.g., methyl methacrylate). A cured product with excellent optical uniformity, high refractive index and physical features such as high heat resistance and low water-absorbing properties can be obtd. by performing radical polymn. of this curable compsn. using a radical polymn. catalyst [e.g., 2,2'-azobis(2,4-dimethylvaleronitrile)] and is useful in such industrial fields as optical materials as well as coatings, sealing agents, paints, adhesives, etc.

公开(公告)号：JPH0232032A

公开(公告)日：1990-02-01

申请号：JP17969188

申请日：1988-07-19

Applicant: SHOWA DENKO KK

Inventor： YOSHIDA HARUO ,  TAKOSHI HIROTAKA ,  ABE KAZUTO ,  ARAKAWA TSUTOMU ,  MARUYAMA SATOSHI

IPC: C07C15/50 ,  C07C1/00 ,  C07C67/00 ,  C08F12/00 ,  C08F12/34

Abstract: NEW MATERIAL:3,3'-Divinylbiphenyl expressed by formula I. USE:Useful as coatings, adhesives, rubber vulcanizing agents, photosensitive resins, ion exchange resins, etc., and capable of providing heat-resistant and transparent resins having low water absorption properties and high refractive index by polymerization of the above-mentioned compound itself or copolymerization thereof with various polymerizable monomers having olefinic double bonds. PREPARATION:For example, a 3-halogenostyrene is reacted with metallic magnesium in an ethereal solvent, such as tetrahydrofuran, to provide an active organomagnesium compound, which is then reacted with a nickel complex catalyst, such as NiCl2(bpy) or NiCl2 [P(Ph)3]2, to afford the compound expressed by the formula.

公开(公告)号：JP2004339396A

公开(公告)日：2004-12-02

申请号：JP2003138486

申请日：2003-05-16

Applicant: Showa Denko Kk ,  Toohoo Kako Kk ,  トーホー加工株式会社 ,  昭和電工株式会社

Inventor： ISHII NOBUAKI ,  ARAKAWA TSUTOMU ,  KAMEI RYOSUKE ,  ASANO ISAMU ,  HOTTA SHIGEFUMI ,  KAWADA YOSHIAKI

IPC: C09C1/04 ,  C09C3/06 ,  C09C3/12 ,  C09D11/02 ,  C09D11/03

Abstract: PROBLEM TO BE SOLVED: To provide a gravure printing ink containing silica-coated zinc oxide fine particles of which a photocatalytic activity is reduced, from which the elution of a metal ion is reduced, and which has good dispersion stability; and to provide an excellently safe ultraviolet-blocked printed product for wrapping, having excellent ultraviolet-blocking ability, transparency and weather resistance, and further having an ultraviolet-blocking layer obtained by using the ink.
SOLUTION: The gravure printing ink contains the silica-coated zinc oxide fine particles having the surfaces coated with silica, and having ≤3 isoelectric point. In another aspect, the gravure printing ink contains the silica-coated zinc oxide having the surface hydrophobized by the surface-treating with a hydrophobicity-imparting agent. The ultraviolet-blocked printed product is printed with the gravure printing ink and has the ultraviolet-blocking layer formed on the surface.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 解决的问题：提供一种含有二氧化硅被覆的氧化锌微粒的凹版印刷油墨，其光催化活性降低，金属离子的洗脱从其降低，并且具有良好的分散稳定性; 并提供优异的紫外线遮蔽印刷产品，具有优异的防紫外线能力，透明性和耐候性，并且还具有通过使用该油墨获得的紫外线阻挡层。 解决方案：凹版印刷油墨包含具有涂覆有二氧化硅的表面并且具有≤3等电点的二氧化硅涂覆的氧化锌细颗粒。 另一方面，凹版印刷油墨含有通过用疏水性赋予剂进行表面处理而被表面疏水化的二氧化硅被覆的氧化锌。 用凹版印刷油墨印刷紫外线阻挡的印刷品，并且在表面上形成紫外线阻挡层。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JPH11349755A

公开(公告)日：1999-12-21

申请号：JP15466698

申请日：1998-06-03

Applicant: SHOWA DENKO KK

Inventor： ARAKAWA TSUTOMU ,  TANAKA TETSUTADA

IPC: C08K5/00 ,  C08L23/04 ,  C08L23/28

Abstract: PROBLEM TO BE SOLVED: To obtain a crosslinkable resin composition with excellent flame retardancy, flexibility, compression set and electrical properties. SOLUTION: This crosslinkable resin composition is obtained by compounding 100 pts.wt. of a resin component composed of (A) 20-80 wt.% of a chlorinated polyolefin and (B) 80-20 wt.% of an ethylene-α-olefin copolymer produced using a single-site catalyst with (C) 0.1-10 pts.wt. of a crosslinking agent and (D) 0.3-20 pts.wt. of a stabilizer.

公开(公告)号：JPH11181203A

公开(公告)日：1999-07-06

申请号：JP35756997

申请日：1997-12-25

Applicant: SHOWA DENKO KK

Inventor： AOYANAGI TERU ,  KISHI DAIJI ,  ARAKAWA TSUTOMU

IPC: C08L27/06 ,  C08L97/02

Abstract: PROBLEM TO BE SOLVED: To obtain a vinyl chloride-based resin composition excellent in impact resistance and moldability and good in weatherability. SOLUTION: This composition comprises (A) 100 pts.wt. of vinyl chloride- based resin (B) 3 to 20 pts.wt. of noncrystalline chlorinated polyolefin having a chlorine content of 20 to 50 wt.%, obtained by chlorinating a material polyolefin having a weight-average molecular weight of 150,000 to 400,000 and (C) 5 to 150 pts.wt. of woody powder.