IT1170475B - Low temp.-flexible radiation-curable fibre optic coating - Google Patents
Low temp.-flexible radiation-curable fibre optic coatingInfo
- Publication number
- IT1170475B IT1170475B IT48941/83A IT4894183A IT1170475B IT 1170475 B IT1170475 B IT 1170475B IT 48941/83 A IT48941/83 A IT 48941/83A IT 4894183 A IT4894183 A IT 4894183A IT 1170475 B IT1170475 B IT 1170475B
- Authority
- IT
- Italy
- Prior art keywords
- low temp
- cure
- coated
- side chain
- unsatd
- Prior art date
Links
- 239000011248 coating agent Substances 0.000 title abstract 3
- 238000000576 coating method Methods 0.000 title abstract 3
- 239000000835 fiber Substances 0.000 title 1
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000005304 optical glass Substances 0.000 abstract 1
- -1 polysiloxane Polymers 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
Abstract
Optical glass fibres (I) coated with a radiation curable liquid polyethylenically unsatd. coating compsn (II) is claimed which comprises an organic polysiloxane (III) with 2-6 reactive sidechains, each carrying a functional gp (IV) with one reactive site which has been reacted to give a single radiation-curable monoethylenically unsatd. side chain (V) There is one side chain per 500-5000 units of mol.wt. Also claimed is a method of making (I) coated with (II) which has a modulus of elasticity at room temp. and at -60 deg.C, below 3000 by applying (II) to the freshly formed filaments and exposing it to ultra violet light to cure. (II) has low temp. flexibility performance with an unlimited pot life upto 80 deg.C and good speed of cure for high prodn. rates. The soft but physically tough top coating protects the light transmitting communication fibres from abrasion and hydrolysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT48941/83A IT1170475B (en) | 1983-09-08 | 1983-09-08 | Low temp.-flexible radiation-curable fibre optic coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT48941/83A IT1170475B (en) | 1983-09-08 | 1983-09-08 | Low temp.-flexible radiation-curable fibre optic coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8348941A0 IT8348941A0 (en) | 1983-09-08 |
| IT1170475B true IT1170475B (en) | 1987-06-03 |
Family
ID=11269113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT48941/83A IT1170475B (en) | 1983-09-08 | 1983-09-08 | Low temp.-flexible radiation-curable fibre optic coating |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1170475B (en) |
-
1983
- 1983-09-08 IT IT48941/83A patent/IT1170475B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8348941A0 (en) | 1983-09-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950831 |