ZW6988A1 - Improvements relating to the manufacture of tobacco filters - Google Patents
Improvements relating to the manufacture of tobacco filtersInfo
- Publication number
- ZW6988A1 ZW6988A1 ZW69/88A ZW6988A ZW6988A1 ZW 6988 A1 ZW6988 A1 ZW 6988A1 ZW 69/88 A ZW69/88 A ZW 69/88A ZW 6988 A ZW6988 A ZW 6988A ZW 6988 A1 ZW6988 A1 ZW 6988A1
- Authority
- ZW
- Zimbabwe
- Prior art keywords
- manufacture
- improvements relating
- tobacco filters
- tobacco
- filters
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1669—Cellular material
- B01D39/1676—Cellular material of synthetic origin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/125—Water, e.g. hydrated salts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Manufacture Of Tobacco Products (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878712617A GB8712617D0 (en) | 1987-05-28 | 1987-05-28 | Tobacco smoke filters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZW6988A1 true ZW6988A1 (en) | 1989-02-08 |
Family
ID=10618085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZW69/88A ZW6988A1 (en) | 1987-05-28 | 1988-05-30 | Improvements relating to the manufacture of tobacco filters |
Country Status (25)
| Country | Link |
|---|---|
| AR (1) | AR245876A1 (en) |
| AT (1) | AT397757B (en) |
| AU (1) | AU611906B2 (en) |
| BE (1) | BE1002913A5 (en) |
| BR (1) | BR8802665A (en) |
| CA (1) | CA1293098C (en) |
| CH (1) | CH677063A5 (en) |
| CY (1) | CY1624A (en) |
| DE (1) | DE3817889A1 (en) |
| DK (1) | DK171907B1 (en) |
| ES (1) | ES2009926A6 (en) |
| FI (1) | FI882457A (en) |
| FR (1) | FR2615752B1 (en) |
| GB (2) | GB8712617D0 (en) |
| HK (1) | HK6192A (en) |
| IN (1) | IN171503B (en) |
| IT (1) | IT1219696B (en) |
| MW (1) | MW1488A1 (en) |
| MX (1) | MX168986B (en) |
| MY (1) | MY102752A (en) |
| NL (1) | NL8801356A (en) |
| NZ (1) | NZ224797A (en) |
| SG (1) | SG97291G (en) |
| ZA (1) | ZA883697B (en) |
| ZW (1) | ZW6988A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5523036A (en) * | 1987-05-28 | 1996-06-04 | British-American Tobacco Company Limited | Methods of making tobacco smoke filter elements |
| US5095054A (en) * | 1988-02-03 | 1992-03-10 | Warner-Lambert Company | Polymer compositions containing destructurized starch |
| US5022964A (en) * | 1989-06-06 | 1991-06-11 | The Dexter Corporation | Nonwoven fibrous web for tobacco filter |
| AT396862B (en) * | 1991-10-22 | 1993-12-27 | Austria Tabakwerke Ag | METHOD FOR PRODUCING A CELLULOSE ACETATE CABLE AND CIGARETTE FILTER THEREOF |
| GB9305066D0 (en) | 1993-03-12 | 1993-04-28 | British American Tobacco Co | Improvements relating to filtration materials |
| GB9407715D0 (en) * | 1994-04-19 | 1994-06-15 | British American Tobacco Co | Improvements relating to tobacco smoke filter elements |
| DE19536505A1 (en) * | 1995-09-29 | 1997-04-10 | Biotec Biolog Naturverpack | Biodegradable filter material and process for its manufacture |
| DE10252823A1 (en) | 2002-11-13 | 2004-06-09 | Biotec Biologische Naturverpackungen Gmbh & Co. Kg | filter element |
| US9226524B2 (en) | 2010-03-26 | 2016-01-05 | Philip Morris Usa Inc. | Biopolymer foams as filters for smoking articles |
| CN110604961A (en) * | 2019-09-16 | 2019-12-24 | 北京泽阳天成化工技术有限公司 | Method and device for separating polymer in polypropylene production process |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3836615A (en) * | 1966-07-01 | 1974-09-17 | Celanese Corp | Method of forming cylindrical foamed cellulose rods enclosed in a rigid skin |
| GB1183498A (en) * | 1967-10-24 | 1970-03-04 | British American Tobacco Co | Improvements relating to Tobacco-Smoke Filters |
| GB1279803A (en) * | 1968-10-30 | 1972-06-28 | Monsanto Chemicals | Smoke-filtering elements |
| GB1319636A (en) * | 1969-08-12 | 1973-06-06 | British American Tobacco Co | Tobacco smoke filters and filter production |
| US3800808A (en) * | 1971-11-26 | 1974-04-02 | Brown & Williamson Tobacco | Tobacco smoke filter |
| US3976605A (en) * | 1974-03-28 | 1976-08-24 | Sumitomo Chemical Company, Limited | Foamed plastics of resin compositions comprising pullulan type resins and thermoplastic resins and process for producing the same |
| GB1482216A (en) * | 1974-04-11 | 1977-08-10 | Monsanto Ltd | Cigarette filters |
| NL7503298A (en) * | 1974-09-13 | 1976-03-16 | Toyo Soda Manufacturing Co Ld | PROCEDURE FOR MANUFACTURE OF A PERMEABEL PRODUCT AND PRODUCT SUCHAINED. |
| US4180536A (en) * | 1978-03-13 | 1979-12-25 | Celanese Corporation | Process for extruding plasticized open cell foamed cellulose acetate filters |
| US4411280A (en) * | 1981-09-11 | 1983-10-25 | Celanese Corporation | Ventilated thermoplastic polymer foam filter rods |
| EP0122460B1 (en) * | 1983-03-23 | 1988-07-06 | Chuo Kagaku Co., Ltd. | Production of resin foam by aqueous medium |
-
1987
- 1987-05-28 GB GB878712617A patent/GB8712617D0/en active Pending
-
1988
- 1988-05-24 ZA ZA883697A patent/ZA883697B/en unknown
- 1988-05-24 CH CH1968/88A patent/CH677063A5/fr not_active IP Right Cessation
- 1988-05-24 MW MW14/88A patent/MW1488A1/en unknown
- 1988-05-25 FI FI882457A patent/FI882457A/en not_active Application Discontinuation
- 1988-05-25 AU AU16596/88A patent/AU611906B2/en not_active Ceased
- 1988-05-26 IN IN363/MAS/88A patent/IN171503B/en unknown
- 1988-05-26 DE DE3817889A patent/DE3817889A1/en not_active Ceased
- 1988-05-26 DK DK287988A patent/DK171907B1/en not_active IP Right Cessation
- 1988-05-26 IT IT20750/88A patent/IT1219696B/en active
- 1988-05-26 NL NL8801356A patent/NL8801356A/en not_active Application Discontinuation
- 1988-05-26 NZ NZ224797A patent/NZ224797A/en unknown
- 1988-05-27 BR BR8802665A patent/BR8802665A/en not_active IP Right Cessation
- 1988-05-27 CA CA000567911A patent/CA1293098C/en not_active Expired - Lifetime
- 1988-05-27 GB GB8812699A patent/GB2205102B/en not_active Expired - Lifetime
- 1988-05-27 FR FR888807107A patent/FR2615752B1/en not_active Expired - Lifetime
- 1988-05-27 MY MYPI88000566A patent/MY102752A/en unknown
- 1988-05-27 AR AR88310963A patent/AR245876A1/en active
- 1988-05-27 AT AT0138888A patent/AT397757B/en not_active IP Right Cessation
- 1988-05-27 BE BE8800594A patent/BE1002913A5/en not_active IP Right Cessation
- 1988-05-27 ES ES8801677A patent/ES2009926A6/en not_active Expired
- 1988-05-27 MX MX011666A patent/MX168986B/en unknown
- 1988-05-30 ZW ZW69/88A patent/ZW6988A1/en unknown
-
1991
- 1991-11-20 SG SG972/91A patent/SG97291G/en unknown
-
1992
- 1992-01-16 HK HK61/92A patent/HK6192A/en not_active IP Right Cessation
- 1992-07-10 CY CY1624A patent/CY1624A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL8801356A (en) | 1988-12-16 |
| IT8820750A0 (en) | 1988-05-26 |
| NZ224797A (en) | 1990-04-26 |
| DK287988A (en) | 1988-11-29 |
| FR2615752B1 (en) | 1992-06-19 |
| DK171907B1 (en) | 1997-08-11 |
| AU1659688A (en) | 1988-12-01 |
| CH677063A5 (en) | 1991-04-15 |
| DK287988D0 (en) | 1988-05-26 |
| ES2009926A6 (en) | 1989-10-16 |
| GB8812699D0 (en) | 1988-06-29 |
| FI882457A (en) | 1988-11-29 |
| ZA883697B (en) | 1989-02-22 |
| ATA138888A (en) | 1993-11-15 |
| AT397757B (en) | 1994-06-27 |
| AU611906B2 (en) | 1991-06-27 |
| BE1002913A5 (en) | 1991-08-06 |
| CY1624A (en) | 1992-07-10 |
| MW1488A1 (en) | 1989-01-11 |
| HK6192A (en) | 1992-01-17 |
| IT1219696B (en) | 1990-05-24 |
| AR245876A1 (en) | 1994-03-30 |
| GB8712617D0 (en) | 1987-07-01 |
| DE3817889A1 (en) | 1988-12-15 |
| MX168986B (en) | 1993-06-16 |
| FI882457A0 (en) | 1988-05-25 |
| FR2615752A1 (en) | 1988-12-02 |
| GB2205102B (en) | 1991-09-18 |
| GB2205102A (en) | 1988-11-30 |
| MY102752A (en) | 1992-09-30 |
| SG97291G (en) | 1992-01-17 |
| CA1293098C (en) | 1991-12-17 |
| IN171503B (en) | 1992-10-31 |
| BR8802665A (en) | 1988-12-27 |
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