FR2687481B1 - - Google Patents
Info
- Publication number
- FR2687481B1 FR2687481B1 FR9201744A FR9201744A FR2687481B1 FR 2687481 B1 FR2687481 B1 FR 2687481B1 FR 9201744 A FR9201744 A FR 9201744A FR 9201744 A FR9201744 A FR 9201744A FR 2687481 B1 FR2687481 B1 FR 2687481B1
- Authority
- FR
- France
- 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
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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Epoxy Resins (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9201744A FR2687481A1 (fr) | 1992-02-17 | 1992-02-17 | Lentilles a haut indice en resine epoxy aromatique. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9201744A FR2687481A1 (fr) | 1992-02-17 | 1992-02-17 | Lentilles a haut indice en resine epoxy aromatique. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2687481A1 FR2687481A1 (fr) | 1993-08-20 |
| FR2687481B1 true FR2687481B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1997-02-14 |
Family
ID=9426693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9201744A Granted FR2687481A1 (fr) | 1992-02-17 | 1992-02-17 | Lentilles a haut indice en resine epoxy aromatique. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2687481A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6320020B1 (en) | 1998-09-08 | 2001-11-20 | Mitsui Chemicals, Inc. | Sulfur-containing (thio)ether (co)polymer and a use thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040810A (zh) * | 1988-04-30 | 1990-03-28 | 三井东圧化学株式会社 | 多硫化合物基树脂透镜及其制备方法 |
| WO1991019674A1 (en) * | 1990-06-13 | 1991-12-26 | Ppg Industries, Inc. | Polymers of high refractive index and high heat distortion temperature |
-
1992
- 1992-02-17 FR FR9201744A patent/FR2687481A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2687481A1 (fr) | 1993-08-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20051031 |