| (19) |
 |
|
(11) |
EP 0 493 026 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
16.12.1992 Bulletin 1992/51 |
| (43) |
Date of publication A2: |
|
01.07.1992 Bulletin 1992/27 |
| (22) |
Date of filing: 20.12.1991 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE ES FR GB IT LI |
| (30) |
Priority: |
25.12.1990 SU 4896031
|
| (71) |
Applicants: |
|
- Voronkov, Mikhail Grigorievich
Irkutsk (SU)
- Sinelnikov, Leonid Yakovlevich
Moscow (SU)
- Vlasova, Natalya Nikolaevna
Irkutsk (SU)
- Kaplan, Elizar Yakovlevich
Moscow (SU)
- Pestunovich, Antonina Egorovna
Irkutsk (SU)
- Safaev, Radzhab Davronovich
Moscow (SU)
- Belitsky, Gennady Alterovich
Moscow (SU)
|
|
| (72) |
Inventors: |
|
- Voronkov, Mikhail Grigorievich
Irkutsk (SU)
- Sinelnikov, Leonid Yakovlevich
Moscow (SU)
- Vlasova, Natalya Nikolaevna
Irkutsk (SU)
- Kaplan, Elizar Yakovlevich
Moscow (SU)
- Pestunovich, Antonina Egorovna
Irkutsk (SU)
- Safaev, Radzhab Davronovich
Moscow (SU)
- Belitsky, Gennady Alterovich
Moscow (SU)
|
| (74) |
Representative: Bibby, William Mark et al |
|
Mathisen, Macara & co.
The Coach House
6-8 Swakeleys Road
Ickenham
Uxbridge UB10 8BZ
Ickenham
Uxbridge UB10 8BZ (GB) |
|
| |
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(57) A cigarette filter comprises a base made of acetate, cellulose or acetate-cellulose
fibers and impregnated with an adsorbing, agent which is a N,N′-bis(3-triethoxysilylpropyl)thiocarbamide
organo-silicon monomer (C₂H₅O)₃Si(CH₂)₃NH - C(S) -NH(CH₂)₃Si-(OC₂H₅)₃.