GB1397678A - Smoking products filtration - Google Patents
Smoking products filtrationInfo
- Publication number
- GB1397678A GB1397678A GB5738273A GB5738273A GB1397678A GB 1397678 A GB1397678 A GB 1397678A GB 5738273 A GB5738273 A GB 5738273A GB 5738273 A GB5738273 A GB 5738273A GB 1397678 A GB1397678 A GB 1397678A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetate
- filter element
- filter
- coating
- useful
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
1397678 Filters BRITISH-AMERICAN TOBACCO CO LTD 11 Dec 1973 [16 May 1973] 57382/73 Heading A2C A smoking tobacco product has a filter element surrounded by a filter wrapper, these being provided a coating of at least one additive, applied to the surface of the filter wrapper adjacent to the filter element for selective filtration of smoke. The filter element may be a cellulose acetate plug which not infrequently contains a plasticiser e.g. triethylene glycol diacetate. The filter wrapper may be coated with zinc acetate, if desired together with sodium acetate, cupric sulphate and acetate bufrered polyethyleneimine. Silver salts e.g. Ag- NO 3 are also stated to be useful coating materials as are salts of Cr, Fe, Co. The coating additives are useful in the removal of HCN and H 2 S from tobacco smoke.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36083973A | 1973-05-16 | 1973-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1397678A true GB1397678A (en) | 1975-06-18 |
Family
ID=23419605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5738273A Expired GB1397678A (en) | 1973-05-16 | 1973-12-11 | Smoking products filtration |
Country Status (11)
Country | Link |
---|---|
AU (1) | AU469846B2 (en) |
BE (1) | BE808961A (en) |
BR (1) | BR7401864A (en) |
CA (1) | CA993752A (en) |
CH (1) | CH604573A5 (en) |
DE (1) | DE2365263A1 (en) |
DK (1) | DK145253C (en) |
FI (1) | FI56767C (en) |
GB (1) | GB1397678A (en) |
NL (1) | NL167745C (en) |
ZA (1) | ZA739241B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4763674A (en) * | 1986-04-16 | 1988-08-16 | Hercules Incorporated | Method and device for controlling hydrogen cyanide and nitric oxide concentrations in cigarette smoke |
US5063196A (en) * | 1989-06-23 | 1991-11-05 | Calgon Carbon Corporation | Chromium-free impregnated activated carbon for adsorption of toxic gases and/or vapors |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0250806A3 (en) * | 1986-06-30 | 1988-06-01 | Hercules Incorporated | Method and device for removing nitric oxide from cigarette smoke |
GB9121782D0 (en) * | 1991-10-14 | 1991-11-27 | Cigarette Components Ltd | Cigarette filter containing particulate smoke modifying additive |
CN103225231B (en) * | 2012-06-28 | 2015-04-01 | 湖北中烟工业有限责任公司 | Cigarette paper with natural mineral and natural plant composite additive |
CN107474960A (en) * | 2017-08-29 | 2017-12-15 | 上海华宝生物科技有限公司 | A kind of cigarette smoke sensitive color change releases the production method of fragrant particle |
-
1973
- 1973-11-19 CA CA186,086A patent/CA993752A/en not_active Expired
- 1973-11-30 AU AU63116/73A patent/AU469846B2/en not_active Expired
- 1973-12-05 ZA ZA739241A patent/ZA739241B/en unknown
- 1973-12-05 FI FI3740/73A patent/FI56767C/en active
- 1973-12-11 GB GB5738273A patent/GB1397678A/en not_active Expired
- 1973-12-14 CH CH1757073A patent/CH604573A5/xx not_active IP Right Cessation
- 1973-12-18 DK DK688873A patent/DK145253C/en not_active IP Right Cessation
- 1973-12-21 NL NL7317538A patent/NL167745C/en not_active IP Right Cessation
- 1973-12-21 BE BE139147A patent/BE808961A/en not_active IP Right Cessation
- 1973-12-31 DE DE2365263A patent/DE2365263A1/en active Pending
-
1974
- 1974-03-12 BR BR1864/74A patent/BR7401864A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4763674A (en) * | 1986-04-16 | 1988-08-16 | Hercules Incorporated | Method and device for controlling hydrogen cyanide and nitric oxide concentrations in cigarette smoke |
US5063196A (en) * | 1989-06-23 | 1991-11-05 | Calgon Carbon Corporation | Chromium-free impregnated activated carbon for adsorption of toxic gases and/or vapors |
Also Published As
Publication number | Publication date |
---|---|
AU6311673A (en) | 1975-07-10 |
BE808961A (en) | 1974-06-21 |
NL167745B (en) | 1981-08-17 |
NL7317538A (en) | 1974-11-19 |
DE2365263A1 (en) | 1974-12-05 |
AU469846B2 (en) | 1976-02-26 |
DK145253C (en) | 1983-03-14 |
CA993752A (en) | 1976-07-27 |
DK145253B (en) | 1982-10-18 |
NL167745C (en) | 1982-01-18 |
ZA739241B (en) | 1974-10-30 |
BR7401864A (en) | 1975-11-11 |
CH604573A5 (en) | 1978-09-15 |
FI56767C (en) | 1980-04-10 |
FI56767B (en) | 1979-12-31 |
FI374073A (en) | 1974-11-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |