KR0149664B1 - 고굴절율의 유기 유리 - Google Patents
고굴절율의 유기 유리Info
- Publication number
- KR0149664B1 KR0149664B1 KR1019900005025A KR900005025A KR0149664B1 KR 0149664 B1 KR0149664 B1 KR 0149664B1 KR 1019900005025 A KR1019900005025 A KR 1019900005025A KR 900005025 A KR900005025 A KR 900005025A KR 0149664 B1 KR0149664 B1 KR 0149664B1
- Authority
- KR
- South Korea
- Prior art keywords
- monomer
- diester
- organic glass
- refractive index
- fumaric acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011521 glass Substances 0.000 title claims description 45
- 239000000178 monomer Substances 0.000 claims description 37
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 30
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 29
- 150000005690 diesters Chemical class 0.000 claims description 26
- LYJHVEDILOKZCG-UHFFFAOYSA-N Allyl benzoate Chemical compound C=CCOC(=O)C1=CC=CC=C1 LYJHVEDILOKZCG-UHFFFAOYSA-N 0.000 claims description 15
- 239000001530 fumaric acid Substances 0.000 claims description 15
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 14
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 14
- 239000011976 maleic acid Substances 0.000 claims description 14
- ROLAGNYPWIVYTG-UHFFFAOYSA-N 1,2-bis(4-methoxyphenyl)ethanamine;hydrochloride Chemical compound Cl.C1=CC(OC)=CC=C1CC(N)C1=CC=C(OC)C=C1 ROLAGNYPWIVYTG-UHFFFAOYSA-N 0.000 claims description 10
- 229920001577 copolymer Polymers 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims 2
- IEPRKVQEAMIZSS-UHFFFAOYSA-N Di-Et ester-Fumaric acid Natural products CCOC(=O)C=CC(=O)OCC IEPRKVQEAMIZSS-UHFFFAOYSA-N 0.000 claims 1
- IEPRKVQEAMIZSS-WAYWQWQTSA-N Diethyl maleate Chemical compound CCOC(=O)\C=C/C(=O)OCC IEPRKVQEAMIZSS-WAYWQWQTSA-N 0.000 claims 1
- JBSLOWBPDRZSMB-BQYQJAHWSA-N dibutyl (e)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C\C(=O)OCCCC JBSLOWBPDRZSMB-BQYQJAHWSA-N 0.000 claims 1
- JBSLOWBPDRZSMB-FPLPWBNLSA-N dibutyl (z)-but-2-enedioate Chemical compound CCCCOC(=O)\C=C/C(=O)OCCCC JBSLOWBPDRZSMB-FPLPWBNLSA-N 0.000 claims 1
- IEPRKVQEAMIZSS-AATRIKPKSA-N diethyl fumarate Chemical compound CCOC(=O)\C=C\C(=O)OCC IEPRKVQEAMIZSS-AATRIKPKSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 description 21
- 230000003287 optical effect Effects 0.000 description 14
- JHQVCQDWGSXTFE-UHFFFAOYSA-N 2-(2-prop-2-enoxycarbonyloxyethoxy)ethyl prop-2-enyl carbonate Chemical compound C=CCOC(=O)OCCOCCOC(=O)OCC=C JHQVCQDWGSXTFE-UHFFFAOYSA-N 0.000 description 8
- 150000002148 esters Chemical class 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000004641 Diallyl-phthalate Substances 0.000 description 4
- -1 allyl m-toluylate Chemical compound 0.000 description 4
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 239000003505 polymerization initiator Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000326 ultraviolet stabilizing agent Substances 0.000 description 2
- ZFFMLCVRJBZUDZ-UHFFFAOYSA-N 2,3-dimethylbutane Chemical group CC(C)C(C)C ZFFMLCVRJBZUDZ-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- VIYWVRIBDZTTMH-UHFFFAOYSA-N 2-[4-[2-[4-[2-(2-methylprop-2-enoyloxy)ethoxy]phenyl]propan-2-yl]phenoxy]ethyl 2-methylprop-2-enoate Chemical compound C1=CC(OCCOC(=O)C(=C)C)=CC=C1C(C)(C)C1=CC=C(OCCOC(=O)C(C)=C)C=C1 VIYWVRIBDZTTMH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ACIAHEMYLLBZOI-ZZXKWVIFSA-N Unsaturated alcohol Chemical compound CC\C(CO)=C/C ACIAHEMYLLBZOI-ZZXKWVIFSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- ZDNFTNPFYCKVTB-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,4-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=C(C(=O)OCC=C)C=C1 ZDNFTNPFYCKVTB-UHFFFAOYSA-N 0.000 description 1
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical class C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 239000001049 brown dye Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000005331 crown glasses (windows) Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 125000004386 diacrylate group Chemical group 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- PYGSKMBEVAICCR-UHFFFAOYSA-N hexa-1,5-diene Chemical group C=CCCC=C PYGSKMBEVAICCR-UHFFFAOYSA-N 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003707 hexyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-L isophthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC(C([O-])=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-L 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- JUZUVYLOVZGXAN-UHFFFAOYSA-N prop-2-enyl 4-methoxybenzoate Chemical compound COC1=CC=C(C(=O)OCC=C)C=C1 JUZUVYLOVZGXAN-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/14—Esters of polycarboxylic acids
- C08F218/16—Esters of polycarboxylic acids with alcohols containing three or more carbon atoms
- C08F218/18—Diallyl phthalate
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims (7)
- (a)디알릴 이소프탈레이트 단량체 40 내지 80 중량%, (b)알릴 벤조에이트 단량체 10 내지 35 중량%, 및 (c)말레산의 디에스테르 또는 푸마르산의 디에스테르 단량체 5 내지 50 중량%의 공중합체를 함유하는 고굴절율의 유기 유리.
- 제1항에 있어서, 상기 단량체들의 비율이 (a)디알릴 이소프탈레이트 단량체 50 내지 70 중량%, (b)알릴 벤조에이트 단량체 10 내지 30 중량%, 및 (c)말레산의 디에스테르 또는 푸마르산의 디에스테르 단량체 10 내지 30 중량%인 유기 유리.
- 제1항에 있어서, 상기 알릴 벤조에이트 단량체 (b)가 1~6의 탄소 원자를 갖는 직쇄 또는 분지쇄 알킬기, 또는 1~6의 탄소 원자를 갖는 직쇄 또는 분지쇄 알콕시기에 의해 벤젠 고리상에서 임의 치환될 수 있는 알릴 벤조에이트 및 메탈릴 벤조에이트로 구성되는 군에서 선택되는 유기 유리.
- 제3항에 있어서, 상기 알릴 벤조에이트 단량체 (b)가 알릴 벤조에이트 또는 알릴 p-t-부틸 벤조에이트인 유기 유리.
- 제1항에 있어서, 상기 말레산의 디에스테르 또는 푸마르산의 디에스테르 단량체 (c)가 1~8의 탄소 원자를 갖는 알킬과 말레산 또는 푸마르산의 디에스테르인 유기 유리.
- 제5항에 있어서, 상기 마레산의 디에스테르 또는 푸마르산의 디에스테르 단량체 (c)가 디에틸 말레이트, 디-n-부틸 말레이트, 디에틸 푸마레이트 및 디-n-부틸 푸마레이트로 구성되는 군에서 선택되는 유기 유리.
- 제1항에 있어서, 상기 말레산의 디에스테르 또는 푸마르산의 디에스테르 단량체 (c)가 1~8의 탄소 원자를 갖는 알킬, 시클로헥실, 페닐 및 벤질로 구성되는 군에서 선택되는 기와 말레산 또는 푸마르산의 디에스테르이며, 상기 에스테르기중 하나 이상은 페닐 또는 벤질인 유기 유리.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1-93597 | 1989-04-12 | ||
JP93597/1989 | 1989-04-12 | ||
JP1093597A JPH072818B2 (ja) | 1989-04-12 | 1989-04-12 | 高屈折率有機ガラス |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900016289A KR900016289A (ko) | 1990-11-13 |
KR0149664B1 true KR0149664B1 (ko) | 1998-10-15 |
Family
ID=14086720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900005025A Expired - Fee Related KR0149664B1 (ko) | 1989-04-12 | 1990-04-12 | 고굴절율의 유기 유리 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5051488A (ko) |
EP (1) | EP0392514B1 (ko) |
JP (1) | JPH072818B2 (ko) |
KR (1) | KR0149664B1 (ko) |
AU (1) | AU623511B2 (ko) |
DE (1) | DE69013205T2 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4362989B2 (ja) * | 2001-05-09 | 2009-11-11 | 日油株式会社 | 光学的立体造形用組成物および造形物 |
JP5830949B2 (ja) * | 2010-07-06 | 2015-12-09 | 東ソー株式会社 | 位相差フィルム用フマル酸ジエステル系樹脂及びそれよりなる位相差フィルム |
CN102532825A (zh) * | 2011-12-14 | 2012-07-04 | 江苏可奥熙光学材料科技有限公司 | 一种高稳定性树脂单体的制备方法 |
CN103172826B (zh) * | 2013-03-04 | 2014-04-23 | 江苏可奥熙光学材料科技有限公司 | 一种高抗划伤性能光学树脂单体及其制备方法 |
CN103172825B (zh) * | 2013-03-04 | 2014-04-23 | 江苏可奥熙光学材料科技有限公司 | 一种高韧性光学树脂单体及其制备方法 |
CN104497547A (zh) * | 2014-11-28 | 2015-04-08 | 李国金 | 一种高韧性耐冲击树脂镜片及其制备方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2964501A (en) * | 1960-04-13 | 1960-12-13 | Titmus Optical Company Inc | Glycol carbonate addition polymers |
JPS4916272A (ko) * | 1972-06-06 | 1974-02-13 | ||
JPS4932944A (ko) * | 1972-07-25 | 1974-03-26 | ||
JPS5815513A (ja) * | 1981-07-21 | 1983-01-28 | Mitsui Toatsu Chem Inc | 光学用の共重合樹脂組成物 |
JPS58201812A (ja) * | 1982-05-19 | 1983-11-24 | Olympus Optical Co Ltd | 透明プラスチツク |
JPS5981318A (ja) * | 1982-11-02 | 1984-05-11 | Ito Kogaku Kogyo Kk | 光学部品用有機ガラス |
JPS601212A (ja) * | 1983-06-17 | 1985-01-07 | Ito Kogaku Kogyo Kk | 光学部品用有機ガラス |
JPS60197709A (ja) * | 1984-03-19 | 1985-10-07 | Ito Kogaku Kogyo Kk | 光学部品用有機ガラス |
JPS61183306A (ja) * | 1985-02-12 | 1986-08-16 | Mitsubishi Rayon Co Ltd | プラスチツクレンズ材料 |
JPH0784507B2 (ja) * | 1986-07-05 | 1995-09-13 | 日本油脂株式会社 | プラスチツクレンズ用樹脂 |
JPS6343911A (ja) * | 1986-08-12 | 1988-02-25 | Nippon Oil & Fats Co Ltd | プラスチツクレンズ用樹脂 |
JPH01103613A (ja) * | 1987-10-15 | 1989-04-20 | Daiso Co Ltd | 光学用有機ガラス |
-
1989
- 1989-04-12 JP JP1093597A patent/JPH072818B2/ja not_active Expired - Fee Related
-
1990
- 1990-04-03 AU AU52909/90A patent/AU623511B2/en not_active Ceased
- 1990-04-06 US US07/505,487 patent/US5051488A/en not_active Expired - Fee Related
- 1990-04-11 DE DE69013205T patent/DE69013205T2/de not_active Expired - Fee Related
- 1990-04-11 EP EP90106956A patent/EP0392514B1/en not_active Expired - Lifetime
- 1990-04-12 KR KR1019900005025A patent/KR0149664B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0392514B1 (en) | 1994-10-12 |
EP0392514A3 (en) | 1991-03-13 |
JPH072818B2 (ja) | 1995-01-18 |
US5051488A (en) | 1991-09-24 |
KR900016289A (ko) | 1990-11-13 |
AU5290990A (en) | 1990-10-18 |
JPH02269714A (ja) | 1990-11-05 |
AU623511B2 (en) | 1992-05-14 |
DE69013205D1 (de) | 1994-11-17 |
EP0392514A2 (en) | 1990-10-17 |
DE69013205T2 (de) | 1995-05-11 |
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