ECSP972202A - METHOD AND COMPOSITION TO INCORPORATE ABSORBENT RADIATION AGENTS IN POLYMERS - Google Patents
METHOD AND COMPOSITION TO INCORPORATE ABSORBENT RADIATION AGENTS IN POLYMERSInfo
- Publication number
- ECSP972202A ECSP972202A ECSP972202A ECSP972202A EC SP972202 A ECSP972202 A EC SP972202A EC SP972202 A ECSP972202 A EC SP972202A EC SP972202 A ECSP972202 A EC SP972202A
- Authority
- EC
- Ecuador
- Prior art keywords
- polymers
- composition
- elimination
- post
- polymerization
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 230000005855 radiation Effects 0.000 title abstract 2
- 230000002745 absorbent Effects 0.000 title 1
- 239000002250 absorbent Substances 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 title 1
- 229920000642 polymer Polymers 0.000 title 1
- 239000000975 dye Substances 0.000 abstract 2
- 230000008030 elimination Effects 0.000 abstract 2
- 238000003379 elimination reaction Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 1
- 239000006096 absorbing agent Substances 0.000 abstract 1
- 230000004913 activation Effects 0.000 abstract 1
- 238000004132 cross linking Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Un método para incorporar agente absorbentes de radiación es decir, tintes en materiales poliméricos. Un método preferido involucra reticular o polimerizar un material polimerizable o reticulable en la presencia de un tinte polimérico. Un producto preferido es un lente de contacto teñido que comprende poli(alcohol vinílico). Los métodos ofrecen ventajas de ciclos de fabricación reducidos, extraibles reducidos, eliminación de pasos de activación posteriores a la polimerización, eliminación de pasos de extracción posteriores a la polimerización y reducción de desechos y de costos asociados con el manejo del lente.One method of incorporating radiation absorbing agent is to say, dyes into polymeric materials. A preferred method involves crosslinking or polymerizing a polymerizable or crosslinkable material in the presence of a polymeric dye. A preferred product is a tinted contact lens comprising polyvinyl alcohol. The methods offer advantages of reduced manufacturing cycles, reduced removals, elimination of post-polymerization activation steps, elimination of post-polymerization extraction steps, and reduction of waste and costs associated with lens handling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ECSP972202 ECSP972202A (en) | 1997-07-25 | 1997-07-25 | METHOD AND COMPOSITION TO INCORPORATE ABSORBENT RADIATION AGENTS IN POLYMERS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ECSP972202 ECSP972202A (en) | 1997-07-25 | 1997-07-25 | METHOD AND COMPOSITION TO INCORPORATE ABSORBENT RADIATION AGENTS IN POLYMERS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ECSP972202A true ECSP972202A (en) | 1998-12-29 |
Family
ID=42043033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ECSP972202 ECSP972202A (en) | 1997-07-25 | 1997-07-25 | METHOD AND COMPOSITION TO INCORPORATE ABSORBENT RADIATION AGENTS IN POLYMERS |
Country Status (1)
| Country | Link |
|---|---|
| EC (1) | ECSP972202A (en) |
-
1997
- 1997-07-25 EC ECSP972202 patent/ECSP972202A/en unknown
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