GB1394056A - Contact lenses - Google Patents
Contact lensesInfo
- Publication number
- GB1394056A GB1394056A GB3423171A GB3423171A GB1394056A GB 1394056 A GB1394056 A GB 1394056A GB 3423171 A GB3423171 A GB 3423171A GB 3423171 A GB3423171 A GB 3423171A GB 1394056 A GB1394056 A GB 1394056A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact lenses
- july
- plastics material
- hydrophilic
- temperature
- 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
Links
- MHNNAWXXUZQSNM-UHFFFAOYSA-N 2-methylbut-1-ene Chemical compound CCC(C)=C MHNNAWXXUZQSNM-UHFFFAOYSA-N 0.000 abstract 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- -1 alkyl titanate Chemical compound 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000000178 monomer Substances 0.000 abstract 2
- 229920003023 plastic Polymers 0.000 abstract 2
- 239000004033 plastic Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 abstract 1
- 125000004054 acenaphthylenyl group Chemical group C1(=CC2=CC=CC3=CC=CC1=C23)* 0.000 abstract 1
- HXGDTGSAIMULJN-UHFFFAOYSA-N acetnaphthylene Natural products C1=CC(C=C2)=C3C2=CC=CC3=C1 HXGDTGSAIMULJN-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 abstract 1
- 230000009477 glass transition Effects 0.000 abstract 1
- 230000005660 hydrophilic surface Effects 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 239000004408 titanium dioxide Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
-
- 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
- G02B1/043—Contact lenses
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
Abstract
1394056 Contact lenses NATIONAL RESEARCH DEVELOPMENT CORP 18 July 1972 [21 July 1971] 34231/71 Heading G2J [Also in Division C3] Contact lenses comprise a physiologically inert, transparent, oxygen permeable plastics material having a hydrophilic surface and a glass transition temperature between ambient temperature and normal eye temperature. The plastics material may be poly 4-methyl-pentene-1 or a copolymer of 4-methylpentene-1 with 2-methylbutene-1, and may be rendered hydrophilic by coating with silica or titanium dioxide or by compounding with an alkyl titanate, by treating with a strong oxidizing agent, e.g. chromic acid solution, or a sulphanating agent and base, or by copolymerizing with an olefinically unsaturated hydrophilic monomer, e.g. alkenols, glycol acrylates and methacrylates and N-vinyl pyrrolidone. The physical properties of the polymer may be varied by incorporating other monomers, e.g. acenaphthylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3423171A GB1394056A (en) | 1971-07-21 | 1971-07-21 | Contact lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3423171A GB1394056A (en) | 1971-07-21 | 1971-07-21 | Contact lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1394056A true GB1394056A (en) | 1975-05-14 |
Family
ID=10363060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3423171A Expired GB1394056A (en) | 1971-07-21 | 1971-07-21 | Contact lenses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1394056A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0184729A2 (en) * | 1984-12-11 | 1986-06-18 | Bayer Ag | Soft contact lenses |
| EP0184727A2 (en) * | 1984-12-11 | 1986-06-18 | Bayer Ag | Soft contact lenses with poor hydrophilic properties |
| EP2927275A4 (en) * | 2012-11-30 | 2016-07-20 | Mitsui Chemicals Inc | COMPOSITION FOR OPTICAL MATERIALS AND APPLICATION THEREOF |
-
1971
- 1971-07-21 GB GB3423171A patent/GB1394056A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0184729A2 (en) * | 1984-12-11 | 1986-06-18 | Bayer Ag | Soft contact lenses |
| EP0184727A2 (en) * | 1984-12-11 | 1986-06-18 | Bayer Ag | Soft contact lenses with poor hydrophilic properties |
| EP0184727A3 (en) * | 1984-12-11 | 1987-09-23 | Bayer Ag | Soft contact lenses with poor hydrophilic properties |
| EP0184729A3 (en) * | 1984-12-11 | 1987-09-30 | Bayer Ag | Soft contact lenses |
| EP2927275A4 (en) * | 2012-11-30 | 2016-07-20 | Mitsui Chemicals Inc | COMPOSITION FOR OPTICAL MATERIALS AND APPLICATION THEREOF |
| US9529118B2 (en) | 2012-11-30 | 2016-12-27 | Mitsui Chemicals, Inc. | Composition for optical material and use of same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |