公开(公告)号：JPH08193148A

公开(公告)日：1996-07-30

申请号：JP658995

申请日：1995-01-19

Applicant: SHOWA DENKO KK

Inventor： ITO KOICHI ,  KASAHARA HIROSHI ,  MARUYAMA SATOSHI ,  UENO MASAHIRO ,  MINORIKAWA NAOKI

IPC: B32B27/00 ,  B32B27/08 ,  C08K5/15 ,  C08K5/1515 ,  C08L23/00 ,  C08L23/26 ,  C08L63/00 ,  C09J123/26

Abstract: PURPOSE: To provide a resin compsn. having excellent adhesion to a polyester and a laminate thereof. CONSTITUTION: This resin compsn. comprises: (A) a polyolefin resin having at least one functional group selected from an acid anhydride group, a carboxyl group, and a metal salt of a carboxylic acid; and (B) an epoxy compd. having two or more epoxy groups and a molecular weight of not more than 3000. The content of the component (B) in the compsn. is 0.01 to 5wt.% based on 100 pts.wt. component (A).

公开(公告)号：JPH0790142A

公开(公告)日：1995-04-04

申请号：JP23661493

申请日：1993-09-22

Applicant: SHOWA DENKO KK

Inventor： MINORIKAWA NAOKI ,  ASAI KUNIHIKO ,  AOKI TAKAAKI ,  NAKAYAMA TAKASHI

IPC: C08J7/04 ,  C08L23/00 ,  C08L23/08 ,  C08L23/10 ,  C08L23/26 ,  C08L37/00 ,  C08L47/00 ,  C08L101/00

Abstract: PURPOSE:To improve rigidity, low-temp. impact resistance, and coating adherence by mixing a PP resin with a PP resin modified with an unsaturated hydroxy compound, a thermoplastic elastomer, a (hydrogenated) diene polymer, and a specific copolymer. CONSTITUTION:20-80wt.% PP resin (A) having an MFR of 0.3-100g/10-min (230 deg.C) is mixed with 0-60wt.% modified PP resin obtained by mixing 100 pts.wt. PP resin which is the same as the ingredient (A) with 0.1-50 pts.wt. unsaturated hydroxy compound and 0.01-20 pts.wt. organic peroxide having a 1-min half-life temp. of 100 deg.C or higher and heating the mixture to 160-300 deg.C, 5-40wt.% thermoplastic elastomer, 0.1-10wt.% hydroxy-terminated (hydrogenated) diene polymer having a number-average mol.wt. of 300-100,000, and 3-40wt.% copolymer of ethylene with a compound having an OH group bonded to a carbon atom not having a polymerizable unsaturated bond. This mixture is kneaded at 180-280 deg.C.

公开(公告)号：JPH04239539A

公开(公告)日：1992-08-27

申请号：JP6081791

申请日：1991-01-23

Applicant: SHOWA DENKO KK

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

IPC: C08F299/02 ,  C08F290/00 ,  C08J7/04 ,  G02B1/04 ,  G02B1/11 ,  G02B1/115 ,  G02B1/14

Abstract: PURPOSE:To obtain plastic lens having high refractive index and good adhesion of coating film and reduced in discoloration by weather. CONSTITUTION:The objective plastic lens obtained by mixing a composition obtained by reacting 4,4'-bis(methacryloylthio)diphenyl sulfide with ethylene glycol dithioglycolate with styrene and azobisisobutyronitrile to afford a solution and pouring the solution into a mold for lens forming and heating the solution to give a plastic lens and providing an acrylic primer layer, silicone hard coat layer and refraction preventing layer of inorganic compound on the surface of the resultant plastic lens.

公开(公告)号：JPH04214501A

公开(公告)日：1992-08-05

申请号：JP41898790

申请日：1990-12-12

Applicant: SHOWA DENKO KK

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

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

Abstract: PURPOSE:To offer a plastic lens having high refractive index, low water absorption and excellent scratching resistance and antireflection effect. CONSTITUTION:The above plastic lens consists of a material obtd. by polymn. of 4,4'-bis(methacryloil thio)diphenyl sulfide expressed by formula I and vinyl monomers. The surface of the lens is successively coated with an acrylic primer layer, silicon hard coating layer and antireflection layer of inorg. compd.

公开(公告)号：JPH03212430A

公开(公告)日：1991-09-18

申请号：JP870690

申请日：1990-01-17

Applicant: SHOWA DENKO KK

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

IPC: G02B1/04 ,  C08F20/10 ,  C08F220/38 ,  C08F290/00 ,  C08F299/00 ,  C08G75/00

Abstract: PURPOSE:To obtain the subject composition having high refractive index and excellent heat resistance, etc., and useful as a coating material, paint, etc., by compounding a specific compound, other vinyl monomer copolymerizable with said compound and a polythiol as essential components. CONSTITUTION:The objective composition is produced by compounding (A) a 4,4'-bis[omega-(meth)acryloyl(polyoxyalkylene)thio]diphenyl sulfide compound of formula I (R1 and R2 are H or methyl; (m) and (n) are 1-5), (B) other vinyl monomer copolymerizable with the compound of formula I [e.g. styrene or methyl (meth)acrylate] and (C) a polythiol of formula II (R is polyvalent organic group; (n) is >=2) and, as necessary, (d) a filler, a dye, etc. The amount of the component B in the components A+B+C is 10-90% and the equivalent ratio of the mercapto functional group of the component C is 0.001-1.01 based on the sum of the (meth)acryloyl group of the component A and the vinyl group of the component B.

公开(公告)号：JPH02160762A

公开(公告)日：1990-06-20

申请号：JP31555988

申请日：1988-12-14

Applicant: SHOWA DENKO KK

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

IPC: G02B1/04 ,  C07C327/22 ,  C08F20/10 ,  C08F20/38

Abstract: NEW MATERIAL:A compound shown by the formula. USE:A polymerizable monomer producing a transparent cured material having high heat resistance, low water absorption properties and high refractive index. A raw material for coating compound, adhesive, casting material, photosensitive resin, optical material, etc. PREPARATION:4,4'-Dimercaptodiphenyl sulfide is converted into an alkali metallic salt by using an aqueous solution of NaOH, the solution is mixed with a phase transfer catalyst (e.g. tetraethylammonium bromide), an alkali and approximately the same volume ratio of a water-insoluble organic solvent (e.g. benzene) stable to acid as that of the aqueous solution of the alkali and a methacrylic acid halide is gradually dripped into the reaction solution of two phase system to give a compound shown by the formula.

公开(公告)号：JPH04214502A

公开(公告)日：1992-08-05

申请号：JP41898990

申请日：1990-12-12

Applicant: SHOWA DENKO KK

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

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

Abstract: PURPOSE:To offer a plastic lens having high refractive index and low water absorptivity and being excellent in scratch resistant and in antireflection effect. CONSTITUTION:A plastic lens consists of a polymer polymerized 4,4'-bis(methacryloylthio)diphenyl sulfid expressed by a formula I with polythiols and on the surface of the lens, an acrylic primer layer, a silicon hard coat layer, inorganic antireflecting layer are provided in order.

公开(公告)号：JPH04204602A

公开(公告)日：1992-07-27

申请号：JP33462290

申请日：1990-11-30

Applicant: SHOWA DENKO KK

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

IPC: G02B1/11 ,  G02B1/04 ,  G02B1/115 ,  G02B1/14

Abstract: PURPOSE:To obtain the plastic lens high in refractive index, low in water absorptivity, and superior in scratch resistance and reflection preventive effect by successively forming an acrylic primer layer, a silicone hard coat layer, and a reflection preventive layer made of an inorganic compound on the surface of the plastic lens obtained by polymerizing a hardenable composition comprising a prepolymer having a polythioether structure and another monomer. CONSTITUTION:The plastic lens to be used is prepared by polymerizing the hardenable composition comprising the prepolymer having the polythioether structure obtained by additionally reacting 4,4'-(methacryloylthio)diphenylsulfide (A) represented by formula I to polythioether (B) represented by formula II, and the other monomer. This plastic lens is coated successively with the acrylic type primer layer of 0.1-3.0mum film thickness, the silicone hard coat layer of 0.5-6.0mum made of the hydrolyzate or the partially condensate of an organosilicon compound represented by formula III, and the reflection preventive layer made of an inorganic compound.

公开(公告)号：JPH03249617A

公开(公告)日：1991-11-07

申请号：JP4903090

申请日：1990-02-27

Applicant: SHOWA DENKO KK

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

IPC: G02C7/00 ,  D06P3/00 ,  G02B7/10

Abstract: PURPOSE:To allow uniform and stable dyeing with good color tones without unequalness by previously treating the surface of a plastic lens with an org. solvent soln. of a phenolic compd. CONSTITUTION:The surface of the plastic lens is previously treated with the org. solvent soln. of a phenolic compd. at the time of immersing the plastic lens in an aq. disperse type dye soln. to dye the plastic lens. The phenolic resin to be used for the purpose of the treatment is not particularly limited insofar as the compd. does not attack the surface of the plastic lens; more specifically, phenol, o-methoxyphenol, o-cresol, quinazarine, etc., are exemplified. The uniform and stable dyeing with the good color tones without the unequalness is thus executed at a desired dyeing speed without impairing the characteristics intrinsic to the plastic lens.

公开(公告)号：JPH02113005A

公开(公告)日：1990-04-25

申请号：JP26577688

申请日：1988-10-20

Applicant: SHOWA DENKO KK

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

IPC: G02B1/04 ,  C08F18/14 ,  C08F20/10 ,  C08F20/38 ,  C08F218/14 ,  C08F220/38 ,  C08J7/04 ,  C09D4/00 ,  C09D4/02 ,  C09J4/02

Abstract: PURPOSE:To obtain the subject composition, consisting of a specific polymerizable monomer and other vinylic monomers copolymerizable therewith, excellent in curability, capable of providing cured products, excellent in optical homogeneity and having high refractive index, heat resistance and low moisture absorbability and useful as coating materials, coatings, etc. CONSTITUTION:The objective composition consisting of 10-90wt.%, preferably 15-85wt.% polymerizable monomer expressed by formula I and 90-10wt.%, preferably 85-15wt.% vinylic monomers [e.g., methyl (meth)acrylate, styrene, (meth) acrylamide or N-methylmaleimide] copolymerizable therewith. Furthermore, the monomer expressed by formula I is obtained by dissolving a dithiol expressed by formula II in an alkaline aqueous solution, etc., and reacting methacryloyl chloride therewith.