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公开(公告)号：JPH0616723A
公开(公告)日：1994-01-25
申请号：JP17279292
申请日：1992-06-30
Applicant: TORAY INDUSTRIES
Inventor： WADA SUSUMU , ITO HIDEO , OKA KOICHIRO
Abstract: PURPOSE:To obtain an optical resin material for plastic lens, etc., consisting of a resin containing sulfur and alpha-methylstyrene at specific amounts, being lightweight, having high refractive index and reduced in odor emitted by polishing. CONSTITUTION:The optical resin material consists of a resin containing >=10wt.% sulfur and 3-20wt.% alpha-methylstyrene. As the optical resin, a three- dimensionally cross-linked casting polymerization type methyl (meth)acrylate, etc., is preferably used.
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公开(公告)号：JPH0457831A
公开(公告)日：1992-02-25
申请号：JP16886090
申请日：1990-06-27
Applicant: TORAY INDUSTRIES
Inventor： WADA SUSUMU , MORI KAORU , OKA KOICHIRO
Abstract: PURPOSE:To improve optical characteristics, toughness, and impact strength by copolymerizing a polymerizable prepolymer obtd. by the addition reaction of two specific compsns. with a copolymerizable monomer. CONSTITUTION:50-100 wt.% compd. having two vinyl groups in the molecule and 0-50 wt.% compd. having a vinyl group in the molecule are mixed to give a compsn., which is allowed to undergo the addition reaction with a compsn. comprising at least one dithiol compd. selected from compds. of formula I and II [wherein (a) is 1-6; (b) is 0-2; X is O or S; R is substd. phenylene; (c) is 0 or 1; and (d) is 0-3] in an equivalent ratio between functional groups (CH2=CH)/(SH) of 0.5-1.5, giving a polymerizable prepolymer. The prepolymer is copolymerized with a copolymerizable monomer in the presence of an initiator at 50-140 deg.C for several hr to several tens of hr.
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公开(公告)号：JPH02289622A
公开(公告)日：1990-11-29
申请号：JP33035189
申请日：1989-12-19
Applicant: TORAY INDUSTRIES
Inventor： SAKAMOTO SADAYUKI , MORI KAORU , OKA KOICHIRO , WADA SUSUMU
Abstract: PURPOSE:To provide the title resin free from optical strain, excellent in high refractive index, rigidity, hardness, heat resistance, toughness and releasability, containing a polymerizable prepolymer produced by reaction between divinylbenzene and a specific dithiol compound at a specified ratio. CONSTITUTION:The objective resin suitable for plastic lenses, etc., containing pref. >=10wt.% of a polymerizable prepolymer which can be produced by reaction between (A) divinylbenzene and (B) a dithiol compound of formula I (R1 is 2-12C aliphatic organic group or 6-16C aromatic group-contg. organic group) [pref. at least one of dithiols of formula II-IV (a is 2-6: b is 1-6; c is 0-2; d is 0 or 1; e is 0-3; X is 0 or S; R2 is phenylene), respectively], at the functional equivalent ratio of the vinyl group to thiol group >=1.8 (pref. 2.0-10.0).
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公开(公告)号：JPS63170401A
公开(公告)日：1988-07-14
申请号：JP202087
申请日：1987-01-08
Applicant: TORAY INDUSTRIES
Inventor： WADA SUSUMU , SAITO MASAMI , FUKUDA TADANORI
Abstract: PURPOSE:To obtain the titled composition having long-period preservation stability and heat stability, not inhibiting initiator activity of polymerization initiator, free from problem of bad smell, by adding a specific polymerization initiator to a radically polymerizable polyfunctional vinyl monomer. CONSTITUTION:An aromatic ring-containing radically polymerizable polyfunctional vinyl monomer is blended with usually 0.01-1,000ppm N- nitrosophenylhydroxylamine salt compound shown by formula I (n is 1-4; X is metal or 1-4 valance or NH4). A di(meth)acrylate shown by formula II (R is H or CH3; X is Cl, Br or F; n is 0-4; m is 0-6; A is -SO2-, etc.) or an isocyanate modified monomer shown shown by formula III (R1 and R2 are CH3 or H; X is Cl, Br or F; Z is polyfunctional isocyanate residue; A is SO2; m and n are 0-4 and m+n=0-4; p is 0-4; q is 2 or 3) is preferable as the monomer.
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公开(公告)号：JPS61147201A
公开(公告)日：1986-07-04
申请号：JP26851384
申请日：1984-12-21
Applicant: TORAY INDUSTRIES
Inventor： WADA SUSUMU , SAITO MASAMI , FUKUDA TADANORI
IPC: G02B1/04
Abstract: PURPOSE:To reduce or eliminate malodor generated in the stage of cutting or grinding work of a plastic lens by incorporating a fragrance imparting compound among hydrocarbon compds. or hetercyclic compds. to the plastic lens. CONSTITUTION:0.005-1.0wt% at least one kind of fragrance imparting compd. selected from hyrocarbon or heterocyclic fragrance imparting compds. having at least one OH, aldehyde, carbonyl or ester group, is incorporated into a plastic lens having >=1.50 refractive index and crosslinked structure. Above 1pt.wt. content of the fragrance imparting compd. per 100pts.wt. monomer is undesirable because of too strong shedding, even in normal state holding its usual shape, of the perfume, and of decreasing the mechanical characteristic of the molded body to be obtd. If the amt. to be addes is
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Patent Agency Ranking
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
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公开(公告)号：JPH0256641B2
公开(公告)日：1990-11-30
申请号：JP26851384
申请日：1984-12-21
Applicant: TORAY INDUSTRIES
Inventor： WADA SUSUMU , SAITO MASAMI , FUKUDA TADANORI
IPC: G02B1/04
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公开(公告)号：JPH02174847A
公开(公告)日：1990-07-06
申请号：JP33141988
申请日：1988-12-27
Applicant: TORAY INDUSTRIES
Inventor： WADA SUSUMU , FUKUDA TADANORI
Abstract: PURPOSE:To reduce or deodorize the offensive smell and malodor generated when a plastic lens is cut, ground and polished by using cooling water containing an aroma imparting compound composed of a hydrocarbon compound or heterocyclic compound having a specific substituent. CONSTITUTION:There are the grinding of a curved surface (cutting and grinding) and the polishing of an end part called lens polishing for mainly setting a diopter in the grinding processing of a plastic lens. At the time of this grinding, cooling water containing one or more kind of an aroma imparting compound composed of a hydrocarbon compound or heterocyclic compound having at least one substituent selected from a hydroxyl group, an aldehyde group, a carbonyl group and an ester group in one molecule thereof is sprayed to a part to be ground. It is pref. to set the content of the aroma imparting compound to 0.001-0.01% by wt. of the cooling water. By this method, the irritant smell generated at the time of the cutting, polishing and grinding of the lens is reduced or deodorized and an aroma easy to receive is emitted to markedly improve working environment.
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公开(公告)号：JPS6232010A
公开(公告)日：1987-02-12
申请号：JP17050085
申请日：1985-08-01
Applicant: TORAY INDUSTRIES
Inventor： WADA SUSUMU , SAITO MASAMI , FUKUDA TADANORI
Abstract: PURPOSE:To obtain a lens excellent in release property and having good appearance grade even in a case based on a vinyl monomer containing an aromatic ring as an injection monomer liquid, by coating the surface of a glass mold with an organosilicon compound. CONSTITUTION:As an embodiment of an organosilicon compound used in apply ing coating treatment to the surface of a glass mold, there are an organosilane compound dimethylpolysiloxane having 1-100 repeating units or methylhydrogen polysiloxane having 1-100 repeating units, an organosilazane compound represented by hexamethylsilazane or modified silicone oil. The film thickness of the organosilicon compound layer used in applying coating treatment to the surface of the glass mold is pref. 0.1mum or more and, if said thickness thin ner than 0.1mum, the effect of this invention is not sufficient. There is no special limit in a thicker side but, with due regard to coating workability, about 30mum or less is pref.
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公开(公告)号：JPH0451801B2
公开(公告)日：1992-08-20
申请号：JP22196185
申请日：1985-10-07
Applicant: TORAY INDUSTRIES
Inventor： WADA SUSUMU , SAITO MASAMI , FUKUDA TADANORI
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