公开(公告)号：JPH112702A

公开(公告)日：1999-01-06

申请号：JP15542597

申请日：1997-06-12

Applicant: TORAY INDUSTRIES

Inventor： OKA KOICHIRO ,  NAKAKIMURA AKITOSHI ,  SHIN MIKIO

IPC: G02B1/11 ,  C09D4/02 ,  C09D163/00 ,  G02B1/111 ,  G02B1/14 ,  G02B1/18

Abstract: PROBLEM TO BE SOLVED: To obtain a low-refractive index film for preventing reflection of light which is easily formable at a low refractive index by incorporating a specific perfluoroic compd. and a compd. having a mol.wt. of at least twice the mol.wt. of the perfluoroic compd. into the film. SOLUTION: This film contains the perfluoroic compd. A which consists of 1 to 14C fluorine-contained org. compd. residue (R) and 2 to 4 molecules of an org. compd. (P) capable of forming a polymerizable terminal group within the molecule by conjugation with (R), contains at least two pieces of the polymerizable terminal groups within one molecule and is expressed by formula and the compd. B which has the mol.wt. of at least twice the mol.wt. of the perfluoroic compd. A. In the formula, (n) denotes an integer of any of 2 to 4. The perfluoroic compd. A having a (meth)acryloyl group and/or epoxy group in the polymerizable terminal group is preferable. A polymer of a monofunctional (meth)acrylate compd. is optimum as the compd. B.

公开(公告)号：JPH10279531A

公开(公告)日：1998-10-20

申请号：JP8154597

申请日：1997-03-31

Applicant: TORAY INDUSTRIES

Inventor： NAKAKIMURA AKITOSHI ,  OKA KOICHIRO

IPC: G02B1/11 ,  C07C69/653 ,  C08F20/20 ,  C08J5/18 ,  G02B1/111 ,  G02B1/14

Abstract: PROBLEM TO BE SOLVED: To easily obtain the subject new compound having unsaturated double bond group and polar group in the molecule, and useful as a raw material for optical thin film excellent in such low reflectivity and scratch resistance as to be used in reflectionproof articles. SOLUTION: This compound is shown by the formula (CH2 =CR1COOR2)2 Rf (R1 is H or methyl; R2 is a 1-10C alkyl bearing one hydroxyl group; Rf is a fluoroalkyl) [e.g. CH2 =CHCOOCH2 CH(OH)CH2 (CF2 )8 CH2CH(OH)CH2 OCOCH= CH2 ]. The compound of the formula is obtained by reaction between a fluorine- contg. diepoxy compound and a carboxyl group-bearing (meth)acrylate in the equivalent ratio of the latter to former of (0.3-2.0) [pref. (0.5-1.5)] pref. using a catalyst such as pyridine and a polymerization inhibitor such as metoquinone pref. at 40-150 deg.C (more pref. 50-130 deg.C) for 2-80 h.

公开(公告)号：JPH10182585A

公开(公告)日：1998-07-07

申请号：JP34848896

申请日：1996-12-26

Applicant: TORAY INDUSTRIES

Inventor： SHIN MIKIO ,  OKA KOICHIRO

IPC: G02B1/11 ,  C07C271/16 ,  C07C271/64 ,  G02B1/111 ,  G02B1/14

Abstract: PROBLEM TO BE SOLVED: To obtain the subject new compound having low reflection property and excellent in scratch resistance and capable of readily providing optical thin film by constituting a fluorine-containing compound so as to have a specific chemical structure. SOLUTION: This fluorine-containing compound is represented by a general formula, A -O(CH2 )n -Rf-(CH2 )n O-A [A and A are each a group of formula I or formula II (R is H or CH3 ); Rf is a perfluoroalkylene; (n) is an integer of 0-3], e.g. a compound of formula III. A compound containing one unsaturated double bond and rich in fluorine content, e.g. 2,2,2-trifluooroethyl methacrylate is preferably added thereto in order to lower refractive index of optical thin film. A small amount of difluorovinyl compound is added thereto in order to increase optical thin film hardness. A polyfunctional monomer such as triethylene glycol di(meth)acrylate in an amount of =1.56 high refractive index in order to increase antireflective effect of thin film.

公开(公告)号：JPH09316129A

公开(公告)日：1997-12-09

申请号：JP13188196

申请日：1996-05-27

Applicant: TORAY INDUSTRIES

Inventor： NAKAMURA MASATAKA ,  OKA KOICHIRO

IPC: B29D11/00 ,  B29K33/00 ,  C08F2/44 ,  C08F20/38 ,  C08F220/38

Abstract: PROBLEM TO BE SOLVED: To obtain a resin composition which can form a resin having a high toughness and a high refractive index by mixing a compound having a mercapto group in the molecule with a compound having (meth)acryloylthio groups and an aromatic ring in the molecule. SOLUTION: This composition comprises at least 5wt.% compound having at least one mercapto group in the molecule and desirably at least 70wt.% compound having at least two (meth) acryloylthio groups and at least one aromatic ring in the molecule (desirably, a compound having a sulfur content of 20wt.% or above and freed from a sulfur atom directly bonded to an aromatic ring). A resin having a high toughness and a high refractive index and suited for optical use can be obtained by polymerizing the composition.

公开(公告)号：JPH09127526A

公开(公告)日：1997-05-16

申请号：JP16864996

申请日：1996-06-06

Applicant: SEIKO INSTR INC ,  TORAY INDUSTRIES

Inventor： HARADA TAKAMASA ,  ITO KOKICHI ,  IWASA KOJI ,  SHIMODA SADAYUKI ,  TAGUCHI MASAAKI ,  OKA KOICHIRO

IPC: G02F1/137 ,  G02F1/133 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/141 ,  G09F9/35

Abstract: PROBLEM TO BE SOLVED: To provide a cell structure capable of effecting the parallel disposition of two sheets of substrates while having the narrowest possible spacing. SOLUTION: This element is composed of ferroelectric liquid crystals, two sheets of the substrates 1, 3 arranged to face each other by a sealing material 4 in order to hold the liquid crystals, spacer particles 2 dispersed and arranged in the inter-substrate spacing to maintain the specified inter-substrate spacing, an oriented film 7 formed on the substrate for the purpose of orienting the liquid crystals and a driving means for impressing voltages on the liquid crystals. At this time, two sheets of the substrates 1, 3 are joined in a dotty form by particulate adhesives 8 which consist essentially of epoxy resins contg. latent type hardeners and are dispersed and arranged in the inter-substrate spacing. The number density of the micro-orientation defects within the ferroelectric liquid crystals is .

公开(公告)号：JPH08217824A

公开(公告)日：1996-08-27

申请号：JP2282695

申请日：1995-02-10

Applicant: TORAY INDUSTRIES

Inventor： OKA KOICHIRO

IPC: G02B1/04 ,  C08F12/00

Abstract: PURPOSE: To obtain the subject material comprising a polymer produced by precipitation polymerization, useful for plastic lens, transparent plates, etc., having high mechanical strength and high refractive index and excellent in transparency, light weightness, and durability. CONSTITUTION: This optical material comprises a polymer (A1 ) produced by precipitation polymerization, e.g. a precipitation polymer composed mainly of a styrene-based monomer, and containing 1mol% or more of radical polymerizable functional group. This material is obtained, for example, by polymerizing a solution prepared by dissolving the component A1 in (B1 ) a radical polymerizable monomer soluble for the component A1 (e.g. styrene-based compound, divnylbenzene); the number-average molecular weight of the component A1 is 10 to 8000, especially 20 to 5000, the content of the component B1 in this material being 5wt.% or more, especially 10wt.% or more.

公开(公告)号：JPH08198932A

公开(公告)日：1996-08-06

申请号：JP5271395

申请日：1995-03-13

Applicant: TORAY INDUSTRIES

Inventor： OKA KOICHIRO

IPC: G02C7/02 ,  C08G18/30 ,  C08G18/38 ,  G02B1/04 ,  G02B3/00

Abstract: PURPOSE: To obtain a plastic lens having high heat resistance and toughness and consisting essentially of a reaction product of a compound containing (meth) acryloyl groups and S atoms in the molecule with a polyfunctional isocyanate and a compound having a thiol group and hydroxyl group in the molecule. CONSTITUTION: This lens consists essentially of a reaction product of (A) a compound containing >=2 (meth)acryloyl groups and >=2 S atoms in the molecule, preferably thio di(meth)acrylate or a di(meth)acryloylthiocarbamic acid ester having a skeleton structure of the formula with (B) a polyfunctional isocyanate compound (e.g. xylylene diisocyanate) and (C) a compound having >=2 total numbers of thiol group and hydroxyl group in the molecule. Furthermore, the lens has preferably a transparent coating layer containing 5-80wt.% metal oxide particles such as Al or Ti having 1-300μm average particle diameter and a silicon-based polymer compound such as a silane-based compound on the surface.

公开(公告)号：JP2503087B2

公开(公告)日：1996-06-05

申请号：JP33035189

申请日：1989-12-19

Applicant: TORAY INDUSTRIES

Inventor： SAKAMOTO SADAYUKI ,  MORI KAORU ,  OKA KOICHIRO ,  WADA SUSUMU

IPC: G02B1/04 ,  B29D11/00 ,  C08G75/02 ,  C08G75/04

公开(公告)号：JPH07101755A

公开(公告)日：1995-04-18

申请号：JP24459693

申请日：1993-09-30

Applicant: TORAY INDUSTRIES

Inventor： IGUCHI YUICHIRO ,  OKA KOICHIRO

IPC: C03C27/12

Abstract: PURPOSE:To obtain a multilayer transparent substrate for a display material having high sealing property which hardly deforms or deteriorates with heat and has surfaces which are hardly scratched, by inserting a polymerizable compd. between inorg. glass sheets of specified thickness and polymerizing and hardening the compd. to a specified thickness. CONSTITUTION:A liquid compsn. which can be polymerized (polymerizalbe compd.) is injected between inorg. glass sheets 2 having 5-500mum thickness while the outer surfaces of the glass sheets 2 are supported by supporting plates 1. Then the polymerizable compd. is polymerized and hardened. The supporting plate 1 is selected from glass, metal and ceramics having 500mum to 30mm thickness. Thickness of the resin layer produced by polymn. and hardening is made equal or larger than the thickness of the inorg. glass sheet.

公开(公告)号：JPH0749486A

公开(公告)日：1995-02-21

申请号：JP19366393

申请日：1993-08-04

Applicant: TORAY INDUSTRIES

Inventor： IGUCHI YUICHIRO ,  OKA KOICHIRO

IPC: G02F1/1333

Abstract: PURPOSE:To provide a lightweight transparent base material for display material in which the easiness of flawing of the surface is improved, tightness is enhanced, and thermal deformation, and decomposition and oxidation deterioration are difficult to cause by constituting the transparent base material for display material from an inorganic glass layer having a specified thickness and a plastic layer having a specified thickness. CONSTITUTION:A transparent base material for display material is formed of an inorganic glass layer having a thickness of 10mum or more and less than 500mum, and a plastic layer having a thickness of 200mum or more and less than 15mm. To improve the easiness of flawing of the surface and the tightness, the glass thickness is required to be 10mum or more, and preferably 50mum or more. On the other hand, to ensure the sufficient lightweight property obtained by using the plastic, the thickness of the inorganic glass is required to be less than 500mum, and preferably less than 200mum. As the plastic layer, the use of the plastic layer having an average thickness of 200mum or more formed by using a plastic material having a grass transition point or thermal deforming temperature of 50 deg.C or more is required.