CA1092308A - Appareil pour la fabrication de verres de contact et procede d'utilisation - Google Patents

Appareil pour la fabrication de verres de contact et procede d'utilisation

Info

Publication number: CA1092308A
Authority: CA; Canada
Prior art keywords: mold; thermoplastic; process according; mold surface; thermo
Prior art date: 1977-02-02
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

Application number

CA336,281A

Other languages

English (en)

Inventor

Thomas H. Shepherd

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Individual

Original Assignee

Individual

Priority date (The priority date 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 date listed.)

1977-02-02

Filing date

1979-09-25

Publication date

1980-12-30

1977-02-02 Priority claimed from CA270,945A external-priority patent/CA1075419A/fr

1979-09-25 Application filed by Individual filed Critical Individual

1979-09-25 Priority to CA336,281A priority Critical patent/CA1092308A/fr

1980-12-30 Application granted granted Critical

1980-12-30 Publication of CA1092308A publication Critical patent/CA1092308A/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 29
230000008569 process Effects 0.000 title claims abstract description 23
238000004519 manufacturing process Methods 0.000 title claims abstract description 10
229920001169 thermoplastic Polymers 0.000 claims abstract description 38
239000004416 thermosoftening plastic Substances 0.000 claims abstract description 38
239000000463 material Substances 0.000 claims abstract description 21
238000000465 moulding Methods 0.000 claims description 39
230000003287 optical effect Effects 0.000 claims description 30
229910052751 metal Inorganic materials 0.000 claims description 16
239000002184 metal Substances 0.000 claims description 16
-1 polypropylene, propylene copolymers Polymers 0.000 claims description 13
230000000295 complement effect Effects 0.000 claims description 10
239000011347 resin Substances 0.000 claims description 10
229920005989 resin Polymers 0.000 claims description 10
238000001746 injection moulding Methods 0.000 claims description 9
239000012530 fluid Substances 0.000 claims description 6
229920005992 thermoplastic resin Polymers 0.000 claims description 5
229920001778 nylon Polymers 0.000 claims description 4
239000004677 Nylon Substances 0.000 claims description 3
239000004743 Polypropylene Substances 0.000 claims description 3
229920001577 copolymer Polymers 0.000 claims description 3
229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
229920001155 polypropylene Polymers 0.000 claims description 3
WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 claims description 2
229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 2
229930182556 Polyacetal Natural products 0.000 claims description 2
DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 2
229920006026 co-polymeric resin Polymers 0.000 claims description 2
229920000098 polyolefin Polymers 0.000 claims description 2
229920006324 polyoxymethylene Polymers 0.000 claims description 2
229920001038 ethylene copolymer Polymers 0.000 claims 2
125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims 1
125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
229920001748 polybutylene Polymers 0.000 claims 1
229920006230 thermoplastic polyester resin Polymers 0.000 claims 1
238000006116 polymerization reaction Methods 0.000 abstract description 22
238000013459 approach Methods 0.000 abstract description 3
239000000203 mixture Substances 0.000 description 21
239000000178 monomer Substances 0.000 description 16
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 14
CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 9
230000004048 modification Effects 0.000 description 7
238000012986 modification Methods 0.000 description 7
230000002093 peripheral effect Effects 0.000 description 7
239000000243 solution Substances 0.000 description 7
NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 6
PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
230000015572 biosynthetic process Effects 0.000 description 6
238000005498 polishing Methods 0.000 description 6
230000000379 polymerizing effect Effects 0.000 description 6
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
229910000831 Steel Inorganic materials 0.000 description 5
238000005266 casting Methods 0.000 description 5
238000003754 machining Methods 0.000 description 5
239000010959 steel Substances 0.000 description 5
WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 4
125000000217 alkyl group Chemical group 0.000 description 4
WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
150000002500 ions Chemical class 0.000 description 4
230000013011 mating Effects 0.000 description 4
241000894007 species Species 0.000 description 4
MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 3
WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 3
DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
230000008602 contraction Effects 0.000 description 3
MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
229920001903 high density polyethylene Polymers 0.000 description 3
239000004700 high-density polyethylene Substances 0.000 description 3
150000002734 metacrylic acid derivatives Chemical class 0.000 description 3
FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical class CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 3
125000005395 methacrylic acid group Chemical group 0.000 description 3
238000004528 spin coating Methods 0.000 description 3
OLQFXOWPTQTLDP-UHFFFAOYSA-N 2-(2-hydroxyethoxy)ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCO OLQFXOWPTQTLDP-UHFFFAOYSA-N 0.000 description 2
KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
239000005977 Ethylene Substances 0.000 description 2
VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
239000002253 acid Substances 0.000 description 2
150000003926 acrylamides Chemical class 0.000 description 2
239000003054 catalyst Substances 0.000 description 2
238000001816 cooling Methods 0.000 description 2
238000004132 cross linking Methods 0.000 description 2
238000006073 displacement reaction Methods 0.000 description 2
239000005038 ethylene vinyl acetate Substances 0.000 description 2
210000000744 eyelid Anatomy 0.000 description 2
239000011521 glass Substances 0.000 description 2
230000002209 hydrophobic effect Effects 0.000 description 2
125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
239000007924 injection Substances 0.000 description 2
229920001684 low density polyethylene Polymers 0.000 description 2
239000004702 low-density polyethylene Substances 0.000 description 2
239000012778 molding material Substances 0.000 description 2
ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 2
229940088644 n,n-dimethylacrylamide Drugs 0.000 description 2
YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 description 2
229920003023 plastic Polymers 0.000 description 2
239000004033 plastic Substances 0.000 description 2
229920001296 polysiloxane Polymers 0.000 description 2
239000002904 solvent Substances 0.000 description 2
125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
229920002554 vinyl polymer Polymers 0.000 description 2
DNXHEGUUPJUMQT-UHFFFAOYSA-N (+)-estrone Natural products OC1=CC=C2C3CCC(C)(C(CC4)=O)C4C3CCC2=C1 DNXHEGUUPJUMQT-UHFFFAOYSA-N 0.000 description 1
PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
YATYDCQGPUOZGZ-UHFFFAOYSA-N 2-(2-hydroxypropoxy)propan-1-ol;prop-2-enoic acid Chemical compound OC(=O)C=C.CC(O)COC(C)CO YATYDCQGPUOZGZ-UHFFFAOYSA-N 0.000 description 1
HWSSEYVMGDIFMH-UHFFFAOYSA-N 2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOC(=O)C(C)=C HWSSEYVMGDIFMH-UHFFFAOYSA-N 0.000 description 1
125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
VFZKVQVQOMDJEG-UHFFFAOYSA-N 2-prop-2-enoyloxypropyl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(=O)C=C VFZKVQVQOMDJEG-UHFFFAOYSA-N 0.000 description 1
JRLTTZUODKEYDH-UHFFFAOYSA-N 8-methylquinoline Chemical group C1=CN=C2C(C)=CC=CC2=C1 JRLTTZUODKEYDH-UHFFFAOYSA-N 0.000 description 1
HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
241000237074 Centris Species 0.000 description 1
241000518994 Conta Species 0.000 description 1
FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
239000004812 Fluorinated ethylene propylene Substances 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
241001441728 Molidae Species 0.000 description 1
101100504379 Mus musculus Gfral gene Proteins 0.000 description 1
101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 1
239000011837 N,N-methylenebisacrylamide Substances 0.000 description 1
229920000571 Nylon 11 Polymers 0.000 description 1
229920002292 Nylon 6 Polymers 0.000 description 1
229920002302 Nylon 6,6 Polymers 0.000 description 1
229920000265 Polyparaphenylene Polymers 0.000 description 1
239000004734 Polyphenylene sulfide Substances 0.000 description 1
UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
150000001241 acetals Chemical class 0.000 description 1
230000002411 adverse Effects 0.000 description 1
150000001298 alcohols Chemical class 0.000 description 1
125000001931 aliphatic group Chemical group 0.000 description 1
125000004429 atom Chemical group 0.000 description 1
238000005452 bending Methods 0.000 description 1
230000008901 benefit Effects 0.000 description 1
210000005252 bulbus oculi Anatomy 0.000 description 1
DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
125000004432 carbon atom Chemical group C* 0.000 description 1
UJTXZXRUVVERGH-UHFFFAOYSA-N carboxy (4,4-ditert-butylcyclohexyl)peroxy carbonate Chemical compound CC(C)(C)C1(CCC(CC1)OOOC(=O)OC(=O)O)C(C)(C)C UJTXZXRUVVERGH-UHFFFAOYSA-N 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
238000004140 cleaning Methods 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
238000000748 compression moulding Methods 0.000 description 1
238000005520 cutting process Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
230000007547 defect Effects 0.000 description 1
238000013461 design Methods 0.000 description 1
SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
229920001971 elastomer Polymers 0.000 description 1
239000000806 elastomer Substances 0.000 description 1
238000011067 equilibration Methods 0.000 description 1
150000002148 esters Chemical class 0.000 description 1
125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
239000002421 finishing Substances 0.000 description 1
229920002313 fluoropolymer Polymers 0.000 description 1
239000011953 free-radical catalyst Substances 0.000 description 1
VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical class CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
150000004680 hydrogen peroxides Chemical class 0.000 description 1
239000012442 inert solvent Substances 0.000 description 1
238000002347 injection Methods 0.000 description 1
229910010272 inorganic material Inorganic materials 0.000 description 1
239000011147 inorganic material Substances 0.000 description 1
230000003993 interaction Effects 0.000 description 1
230000001788 irregular Effects 0.000 description 1
125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
239000007788 liquid Substances 0.000 description 1
230000014759 maintenance of location Effects 0.000 description 1
239000011159 matrix material Substances 0.000 description 1
238000005259 measurement Methods 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
229920001179 medium density polyethylene Polymers 0.000 description 1
239000004701 medium-density polyethylene Substances 0.000 description 1
125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
238000002156 mixing Methods 0.000 description 1
WFKDPJRCBCBQNT-UHFFFAOYSA-N n,2-dimethylprop-2-enamide Chemical compound CNC(=O)C(C)=C WFKDPJRCBCBQNT-UHFFFAOYSA-N 0.000 description 1
YPHQUSNPXDGUHL-UHFFFAOYSA-N n-methylprop-2-enamide Chemical compound CNC(=O)C=C YPHQUSNPXDGUHL-UHFFFAOYSA-N 0.000 description 1
239000003960 organic solvent Substances 0.000 description 1
WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
229920009441 perflouroethylene propylene Polymers 0.000 description 1
239000002504 physiological saline solution Substances 0.000 description 1
229920000110 poly(aryl ether sulfone) Polymers 0.000 description 1
229920002492 poly(sulfone) Polymers 0.000 description 1
229920001515 polyalkylene glycol Polymers 0.000 description 1
229920000728 polyester Polymers 0.000 description 1
229920000642 polymer Polymers 0.000 description 1
229920005862 polyol Polymers 0.000 description 1
150000003077 polyols Chemical class 0.000 description 1
229920000069 polyphenylene sulfide Polymers 0.000 description 1
229920002635 polyurethane Polymers 0.000 description 1
239000004814 polyurethane Substances 0.000 description 1
USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
LYBIZMNPXTXVMV-UHFFFAOYSA-N propan-2-yl prop-2-enoate Chemical compound CC(C)OC(=O)C=C LYBIZMNPXTXVMV-UHFFFAOYSA-N 0.000 description 1
RGBXDEHYFWDBKD-UHFFFAOYSA-N propan-2-yl propan-2-yloxy carbonate Chemical compound CC(C)OOC(=O)OC(C)C RGBXDEHYFWDBKD-UHFFFAOYSA-N 0.000 description 1
PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
230000005855 radiation Effects 0.000 description 1
150000003254 radicals Chemical class 0.000 description 1
230000005258 radioactive decay Effects 0.000 description 1
239000012429 reaction media Substances 0.000 description 1
229920002379 silicone rubber Polymers 0.000 description 1
238000002791 soaking Methods 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
239000011734 sodium Substances 0.000 description 1
239000000600 sorbitol Substances 0.000 description 1
150000005846 sugar alcohols Polymers 0.000 description 1
150000003457 sulfones Chemical class 0.000 description 1
239000006188 syrup Substances 0.000 description 1
235000020357 syrup Nutrition 0.000 description 1
239000012815 thermoplastic material Substances 0.000 description 1
231100000331 toxic Toxicity 0.000 description 1
230000002588 toxic effect Effects 0.000 description 1
ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
229960004418 trolamine Drugs 0.000 description 1
239000011800 void material Substances 0.000 description 1
238000004073 vulcanization Methods 0.000 description 1

Landscapes

Moulds For Moulding Plastics Or The Like (AREA)

CA336,281A 1977-02-02 1979-09-25 Appareil pour la fabrication de verres de contact et procede d'utilisation Expired CA1092308A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA336,281A CA1092308A (fr)	1977-02-02	1979-09-25	Appareil pour la fabrication de verres de contact et procede d'utilisation

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CA270,945A CA1075419A (fr)	1976-03-24	1977-02-02	Appareil pour fabriquer des lentilles corneennes et procede d'utilisation
CA336,281A CA1092308A (fr)	1977-02-02	1979-09-25	Appareil pour la fabrication de verres de contact et procede d'utilisation

Publications (1)

Publication Number	Publication Date
CA1092308A true CA1092308A (fr)	1980-12-30

Family

ID=25668447

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA336,281A Expired CA1092308A (fr)	1977-02-02	1979-09-25	Appareil pour la fabrication de verres de contact et procede d'utilisation

Country Status (1)

Country	Link
CA (1)	CA1092308A (fr)

1979
- 1979-09-25 CA CA336,281A patent/CA1092308A/fr not_active Expired

Legal Events

Date	Code	Title	Description
1997-12-30	MKEX	Expiry

Publication	Publication Date	Title
US4121896A (en)	1978-10-24	Apparatus for the production of contact lenses
US4208364A (en)	1980-06-17	Process for the production of contact lenses
US4815690A (en)	1989-03-28	Apparatus for the production of monolithic intraocular implants
EP0079952B1 (fr)	1986-10-15	Moules et procede de production de verres de contact tronques
CA1144316A (fr)	1983-04-12	Methode et dispositif de moulage de verres de contact toriques
US5466147A (en)	1995-11-14	Apparatus for molding lenses
US4921205A (en)	1990-05-01	Lens mold assembly
US4565348A (en)	1986-01-21	Mold for making contact lenses, the male mold member being more flexible than the female mold member
CA1176414A (fr)	1984-10-23	Verres de contact moules toriques
HK103496A (en)	1996-06-21	Process for the production of contact lenses
JPS598219B2 (ja)	1984-02-23	レンズ製造装置
US4469646A (en)	1984-09-04	Method of molding plastic contact lenses
US6257547B1 (en)	2001-07-10	Mold assembly for forming ophthalmic lens
US4681295A (en)	1987-07-21	Tricurve optical metal master mold and method of making
EP0145516B1 (fr)	1988-05-04	Dispositif de coupe et procédé pour ébavurer exactement le bord d'une lentille de contact coulée
AU569089B2 (en)	1988-01-21	Improvements relating to molding hydrosel contact lenses
CA1092308A (fr)	1980-12-30	Appareil pour la fabrication de verres de contact et procede d'utilisation
CA1218545A (fr)	1987-03-03	Moules et methode de fabrication de verres de contact trongues
IE52078B1 (en)	1987-06-10	Molded toric contact lenses
CS197292B2 (cs)	1980-04-30	Forma pro výrobu kontaktních čoček
JPS62297119A (ja)	1987-12-24	コンタクトレンズ成形型