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11. 发明专利

JPH0515724B2 失效
公开(公告)号：JPH0515724B2
公开(公告)日：1993-03-02
申请号：JP17417784
申请日：1984-08-23
申请人： NIPPON CONTACT LENSE
发明人： MIZUTANI YUTAKA , HARADA TATSUO , TANAHASHI NAOKATSU
IPC分类号： C08F20/00 , C08F20/10 , C08F20/22 , C08F30/00 , C08F30/08 , C08F220/00 , C08F220/10 , C08F220/12 , C08F220/22 , C08F220/40 , C08F230/08 , G02B7/04 , G02C7/04

12. 发明专利

JPH04332760A MATERIAL FOR MEDICAL TREATMENT 失效
公开(公告)号：JPH04332760A
公开(公告)日：1992-11-19
申请号：JP10445091
申请日：1991-05-09
申请人： NIPPON CONTACT LENSE
发明人： NAITO HISAYOSHI , TANAHASHI NAOKATSU
IPC分类号： A61F2/16 , A61L27/00 , C08F20/10 , C08F26/10 , C08F30/08 , C08F220/28 , C08F226/10 , C08F230/08 , C08F290/00 , C08F299/08 , C08G77/18 , C08G77/20 , C08G77/22 , C08G77/24 , C08L83/04 , C08L83/10 , G02C7/04
摘要： PURPOSE:To provide a medical treatment material comprising a three- dimensionally crosslinked net structure polymer obtained by polymerizing a specific monomer component, having good handling property, excellent oxygen permeability, excellent hydrophilicity, excellent flexibility and good stain resistance, and suitable for contact lenses, etc. CONSTITUTION:A medical treatment material comprising a three-dimensional crosslinked net-like structure polymer produced by polymerizing at least (A) an organosiloxane of formula I (a is 1 or larger; b is 1-5; R1 is H, methyl; X1-X3 are a group of formula II; c is 0-3; Y1 and Y2 are a group of formula III; d is 0-2), (B) a fluoroorgano siloxane consisting of a monomer of formula IV [e is 0-700; R2 is (CH )f; f is 1-25); R3 is 1-30C alkyl, alkoxy, etc.; A is a group of formula V (i is 0-250; R5 is H, methyl); Z1-Z6 are a group of formula (j is 0-10; R6-R8 are R3, 6-12C aryl)] in which one or more 2-30C fluorinated hydrocarbon groups having three or more fluorine atoms are graft-bonded to the carbon atoms of the alkylene groups in the main chain of the monomer, (C) a (meth)acrylate ester, and (D) a tear film-stabilizing agent.

13. 发明专利

JPH04318010A MATERIAL FOR MEDICAL USE 失效
公开(公告)号：JPH04318010A
公开(公告)日：1992-11-09
申请号：JP8401191
申请日：1991-04-16
申请人： NIPPON CONTACT LENSE
发明人： NAITO HISAYOSHI , TANAHASHI NAOKATSU
IPC分类号： C08F299/08 , C08F290/00 , C08G77/20 , C08G77/22 , G02C7/04
摘要： PURPOSE:To obtain the title material for contact lens with no need for boiling sterilization, resistant to staining, wearable for many hours by reaction among a unsaturated group-contg. polysiloxane, acrylic ester, fluorine-contg. acrylic ester and lacrimal membrane stabilizer. CONSTITUTION:Firstly, a radical polymerization initiator is added to a mixture comprising (A) 20-90 pts.wt. of a polyorganosiloxane monomer of formula I [(b) is integer: 1-700; A is a group of formula II ((r) is integer: >=1; R1 is H or methyl)], (B) 5-60 pts.wt. of a (meth)acrylic ester (e.g. n-butyl methacrylate), (C) 3-40 pts.wt. of a fluorine-contg. (meth)acrylic ester (e.g. 2,2,2,2',2',2'- hexafluoroisopropyl methacrylate), and (D) a lacrimal membrane stabilizer (e.g. acrylic acid). Then the resulting mixture is injected into a mold for contact lens followed by heating to 95 deg.C to carry out polymerization. After polymerization, the resultant polymer is demolded and put to a secondary heating treatment at 130 deg.C, thus obtaining the objective material for medical use consisting of a polymer of three-dimensional network structure.

14. 发明专利

JPH03294324A MATERIAL FOR CONTACT LENS 失效
公开(公告)号：JPH03294324A
公开(公告)日：1991-12-25
申请号：JP9501290
申请日：1990-04-12
申请人： NIPPON CONTACT LENSE
发明人： TANAHASHI NAOKATSU , IWASHITA HIDEO
IPC分类号： G02C7/04 , C08F290/00 , C08F299/08
摘要： PURPOSE:To obtain the subject easily handleable material having excellent oxygen permeability and water-wettability, continuously applicable over a long period and having excellent processability by copolymerizing a plurality of organosiloxane monomers having specific structural formulas. CONSTITUTION:The objective material can be produced by copolymerizing (A) an organosiloxane monomer of formula I (R1, R3, R4 and R6 to R8 are 1-5C alkyl, aromatic group or group of formula II; R2 and R5 are 1-5C alkyl, aromatic group, group of formula II or bonding chain of formula R2-O-R5; A1 to A5, R10, R10' and R10 are 1-5C alkyl or aromatic group; R9 is methyl or H; a, b, c, d and e are integers of 0-10) and (B) an organosiloxane monomer of formula III (X1 to X6 are 1-5C alkyl, aromatic group or group of formula IV: R23 is methyl or H; R11, R13, R14 and R16 to R22 are 1-5C alkyl, aromatic group or group of formula II ; R12 and R15 are 1-5C alkyl, aromatic group, group of formula II or bonding chain of formula R12-O-R15; g, h, i, j, k, l and m are integers of 0-10; n and p are 0 or 1).

15. 发明专利

JPH03217815A CONTACT LENS AND PRODUCTION THEREOF 失效
公开(公告)号：JPH03217815A
公开(公告)日：1991-09-25
申请号：JP1270590
申请日：1990-01-24
申请人： NIPPON CONTACT LENSE , ASAHI CHEMICAL IND
发明人： TANAHASHI NAOKATSU , KAGEURA YOSHIAKI , KOBAYASHI HIROSHI
IPC分类号： G02C7/04 , B29D11/00 , G02C13/00
摘要： PURPOSE:To provide the contact lens having excellent resistance to staining, adequate wettability with water and oxygen permeability by providing a modified part on the surface of the contact lens by using >=1 kinds of compds. selected from fluoroalkyl ether compds. having double bonds within the molecule. CONSTITUTION:The fluoroalkyl ether compds. have the double bonds in the molecule and are, therefore, easily polymerized by a surface excitation reaction, such as low-temp. plasma treatment, by which a secure treatment layer can be provided on the substrate surface. The modified part is, thereupon, provided on the surface of the contact lens by using >=1 kinds of the compds. selected from the group of the fluoroalkyl ether compds. having the double bonds in the molecule and having carboxyl groups and/or sulfone groups. This modified part can be easily reformed in surface to the treated layer having the adequate wettability with water by modifying the surface of the contact lens blank by using a low-temp. plasma means.

16. 发明专利

JPS6254220A CONTACT LENS MATERIAL 失效
公开(公告)号：JPS6254220A
公开(公告)日：1987-03-09
申请号：JP19313985
申请日：1985-09-03
申请人： NIPPON CONTACT LENSE
发明人： MIZUTANI YUTAKA , HARADA TATSUO , TANAHASHI NAOKATSU
IPC分类号： G02C7/04 , C08F230/08 , G02B1/04
摘要： PURPOSE:To obtain the titled material having an excellent oxygen permeability and a good wetting property, and enabling continuous use for long periods by using a copolymer obtd. by copolymerizing a specific polyfunctional organosiloxane, a specific monofunctional organosiloxane and an ester composed of a specific acid. CONSTITUTION:The polyfunctional organosiloxane shown by formula I and the monofunctional organosiloxane shown by formula II and the ester composed of C1-C10 a mono or polyhydric alcohol and the acid selected from the group comprising methacrylic acid, acrylic acid and itaconic acid and or the ester composed of 1-20 C a straight chain or a branched chain fluorine contg. fluoroalkyl alcohol and the acid selected from the group comprising the methacrylic acid, the acrylic acid and the itaconic acid are copolymerized to form the prescribed copolymer. The monomer constituting said polymer comprises 5-30pts.wt. the polyfunctional organosiloxane, 10-60pts.wt.% the monofunctional organosiloxane and 10-85pts.wt. the ester.

17. 发明专利

JPS61285426A CONTACT LENS MATERIAL 失效
公开(公告)号：JPS61285426A
公开(公告)日：1986-12-16
申请号：JP12623785
申请日：1985-06-12
申请人： NIPPON CONTACT LENSE
发明人： MIZUTANI YUTAKA , HARADA TATSUO , TANAHASHI NAOKATSU
IPC分类号： G02C7/04 , C08F14/18 , C08F20/00 , C08F20/10 , C08F20/22 , C08F30/00 , C08F30/08 , C08F214/18 , C08F220/20 , C08F220/28 , C08F230/08
摘要： PURPOSE:To obtain a contact lens material having particularly excellent oxygen permeability and hydrophilicity by copolymerizing a specific perfluoroalkyl other, monohydric or polyhydric alcohol or specific fluoroalcohol, specific unsatd. acid ester and specific siloxane. CONSTITUTION:The contact lens material having excellent durability, long-period continuous wearability, etc. is obtd. by using the compd. expressed by formula I (X is F or group expressed by formula II, Y is the group expressed by formula III, etc., R1, R2 are H or CH3, R3 is F or CF3, j, k are 1-4, p is 2-5, n, m are 0-200), monohydric or polyhydric alcohol of 1-10C, the ester of a (meth) acrylic acid and itaconic acid or straight chain or branched chain fluoroalkyl having 1-20F and the ester of the (meth) acrylic acid and itaconic acid and the copolymer expressed by formula IV (A1-A5 are an alkyl of 1-6C, arom. group or group expressed by the formula V, etc., R4 is CH3, H, R5, R8, R6', R8' are an alkyl of 1-5C, etc., R5', R7' are a bond group R5'-O-R7', or an alkyl of 1-5C, etc., R5', R7' are a bond group R5'-O-R7', or an alkyl of 1-5C, etc., b, b', c, c' are 0-10, d is 1-10).

18. 发明专利

JPS61281216A CONTACT LENS MATERIAL 失效
公开(公告)号：JPS61281216A
公开(公告)日：1986-12-11
申请号：JP12253985
申请日：1985-06-07
申请人： NIPPON CONTACT LENSE
发明人： MIZUTANI YUTAKA , HARADA TATSUO , TANAHASHI NAOKATSU
IPC分类号： G02C7/04 , C08F290/00 , C08F299/00 , C08F299/08
摘要： PURPOSE:To obtain the titled material capable of continuously applying the contact lens for long periods by using a copolymer composed of a specific organosiloxane and an ester to the titled material. CONSTITUTION:The titled material comprises the copolymer obtd. by copolymerizing the organosiloxane shown by the formula, the ester of 1-10C monovalent or polyvalent alcohol and acid selected from the group of a methacrylic acid, acrylic acid and itaconic acid and/or the ester of a straight chain or a branched chain fluoroalkyl alcohol contg. 1-20 fluoroatoms and acid selected from the group of methacrylic acid, acrylic acid and itaconic acid. The organosiloxane shown by the formula is exemplified for example, 1,3-bis(methacryloxyethoxy-propyl)-1,1,3,3-(tetramethyl) disiloxane. The prescribed material has the excellent oxygen permeability and hydrophilic property, and has the less moisture content. The contact lens constituted of the prescribed material is easy to handling and has the excellent durability.

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