GB1457694A - Tobacco-smoke filters - Google Patents
Tobacco-smoke filtersInfo
- Publication number
- GB1457694A GB1457694A GB2470474A GB2470474A GB1457694A GB 1457694 A GB1457694 A GB 1457694A GB 2470474 A GB2470474 A GB 2470474A GB 2470474 A GB2470474 A GB 2470474A GB 1457694 A GB1457694 A GB 1457694A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tobacco
- smoke filters
- cigarette filter
- tow
- ester
- 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
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
1457694 Cigarette filter BRITISH-AMERICAN TOBACCO CO Ltd 29 April 1975 [4 June 1974] 24704/74 Heading A2C A cigarette filter comprises cellulose-acetate tow treated with a succinic acid ester of formula where R 1 and R 2 may be methyl, ethyl, N- propyl and/or n-butyl. The ester is added in an amount between 1 and 10% by weight of the tow.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2470474A GB1457694A (en) | 1974-06-04 | 1974-06-04 | Tobacco-smoke filters |
DE19752520496 DE2520496C2 (en) | 1974-06-04 | 1975-05-07 | Tobacco smoke filters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2470474A GB1457694A (en) | 1974-06-04 | 1974-06-04 | Tobacco-smoke filters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1457694A true GB1457694A (en) | 1976-12-08 |
Family
ID=10215944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2470474A Expired GB1457694A (en) | 1974-06-04 | 1974-06-04 | Tobacco-smoke filters |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2520496C2 (en) |
GB (1) | GB1457694A (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5115120B2 (en) * | 1972-08-17 | 1976-05-14 | ||
JPS5115119B2 (en) * | 1972-08-17 | 1976-05-14 |
-
1974
- 1974-06-04 GB GB2470474A patent/GB1457694A/en not_active Expired
-
1975
- 1975-05-07 DE DE19752520496 patent/DE2520496C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2520496A1 (en) | 1975-12-18 |
DE2520496C2 (en) | 1986-04-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |