AT397757B - Verfahren zur herstellung von geschäumtem filtrationsmaterial - Google Patents
Verfahren zur herstellung von geschäumtem filtrationsmaterialInfo
- Publication number
- AT397757B AT397757B AT0138888A AT138888A AT397757B AT 397757 B AT397757 B AT 397757B AT 0138888 A AT0138888 A AT 0138888A AT 138888 A AT138888 A AT 138888A AT 397757 B AT397757 B AT 397757B
- Authority
- AT
- Austria
- Prior art keywords
- filtration material
- producing foamed
- foamed
- producing
- filtration
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (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 (2)
Publication Number | Publication Date |
---|---|
ATA138888A ATA138888A (de) | 1993-11-15 |
AT397757B true AT397757B (de) | 1994-06-27 |
Family
ID=10618085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT0138888A AT397757B (de) | 1987-05-28 | 1988-05-27 | Verfahren zur herstellung von geschäumtem filtrationsmaterial |
Country Status (25)
Country | Link |
---|---|
AR (1) | AR245876A1 (de) |
AT (1) | AT397757B (de) |
AU (1) | AU611906B2 (de) |
BE (1) | BE1002913A5 (de) |
BR (1) | BR8802665A (de) |
CA (1) | CA1293098C (de) |
CH (1) | CH677063A5 (de) |
CY (1) | CY1624A (de) |
DE (1) | DE3817889A1 (de) |
DK (1) | DK171907B1 (de) |
ES (1) | ES2009926A6 (de) |
FI (1) | FI882457A (de) |
FR (1) | FR2615752B1 (de) |
GB (2) | GB8712617D0 (de) |
HK (1) | HK6192A (de) |
IN (1) | IN171503B (de) |
IT (1) | IT1219696B (de) |
MW (1) | MW1488A1 (de) |
MX (1) | MX168986B (de) |
MY (1) | MY102752A (de) |
NL (1) | NL8801356A (de) |
NZ (1) | NZ224797A (de) |
SG (1) | SG97291G (de) |
ZA (1) | ZA883697B (de) |
ZW (1) | ZW6988A1 (de) |
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 (de) * | 1991-10-22 | 1993-12-27 | Austria Tabakwerke Ag | Verfahren zur herstellung eines zelluloseazetat-kabels und zigarettenfilter daraus |
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 (de) * | 1995-09-29 | 1997-04-10 | Biotec Biolog Naturverpack | Biologisch abbaubares Filtermaterial und Verfahren zu seiner Herstellung |
DE10252823A1 (de) * | 2002-11-13 | 2004-06-09 | Biotec Biologische Naturverpackungen Gmbh & Co. Kg | Filterelement |
US9226524B2 (en) | 2010-03-26 | 2016-01-05 | Philip Morris Usa Inc. | Biopolymer foams as filters for smoking articles |
CN110604961A (zh) * | 2019-09-16 | 2019-12-24 | 北京泽阳天成化工技术有限公司 | 聚丙烯生产工艺中聚合物的分离方法及分离装置 |
Citations (1)
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 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 (nl) * | 1974-09-13 | 1976-03-16 | Toyo Soda Manufacturing Co Ld | Werkwijze voor het vervaardigen van een permea- bel produkt en zo verkregen produkt. |
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 |
DE3472565D1 (en) * | 1983-03-23 | 1988-08-11 | Chuo Kagaku Co | Production of resin foam by aqueous medium |
-
1987
- 1987-05-28 GB GB878712617A patent/GB8712617D0/en active Pending
-
1988
- 1988-05-24 CH CH1968/88A patent/CH677063A5/fr not_active IP Right Cessation
- 1988-05-24 ZA ZA883697A patent/ZA883697B/xx unknown
- 1988-05-24 MW MW14/88A patent/MW1488A1/xx unknown
- 1988-05-25 FI FI882457A patent/FI882457A/fi 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 IT IT20750/88A patent/IT1219696B/it active
- 1988-05-26 DE DE3817889A patent/DE3817889A1/de not_active Ceased
- 1988-05-26 NL NL8801356A patent/NL8801356A/nl not_active Application Discontinuation
- 1988-05-26 NZ NZ224797A patent/NZ224797A/en unknown
- 1988-05-26 DK DK287988A patent/DK171907B1/da not_active IP Right Cessation
- 1988-05-27 CA CA000567911A patent/CA1293098C/en not_active Expired - Lifetime
- 1988-05-27 MX MX011666A patent/MX168986B/es unknown
- 1988-05-27 AR AR88310963A patent/AR245876A1/es active
- 1988-05-27 ES ES8801677A patent/ES2009926A6/es not_active Expired
- 1988-05-27 GB GB8812699A patent/GB2205102B/en not_active Expired - Lifetime
- 1988-05-27 FR FR888807107A patent/FR2615752B1/fr not_active Expired - Lifetime
- 1988-05-27 AT AT0138888A patent/AT397757B/de not_active IP Right Cessation
- 1988-05-27 BE BE8800594A patent/BE1002913A5/fr not_active IP Right Cessation
- 1988-05-27 MY MYPI88000566A patent/MY102752A/en unknown
- 1988-05-27 BR BR8802665A patent/BR8802665A/pt not_active IP Right Cessation
- 1988-05-30 ZW ZW69/88A patent/ZW6988A1/xx unknown
-
1991
- 1991-11-20 SG SG972/91A patent/SG97291G/en unknown
-
1992
- 1992-01-16 HK HK61/92A patent/HK6192A/xx not_active IP Right Cessation
- 1992-07-10 CY CY1624A patent/CY1624A/xx unknown
Patent Citations (1)
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 |
Also Published As
Publication number | Publication date |
---|---|
MY102752A (en) | 1992-09-30 |
BE1002913A5 (fr) | 1991-08-06 |
CA1293098C (en) | 1991-12-17 |
FR2615752A1 (fr) | 1988-12-02 |
GB2205102A (en) | 1988-11-30 |
IT8820750A0 (it) | 1988-05-26 |
BR8802665A (pt) | 1988-12-27 |
FI882457A (fi) | 1988-11-29 |
MW1488A1 (en) | 1989-01-11 |
ZW6988A1 (en) | 1989-02-08 |
MX168986B (es) | 1993-06-16 |
AU611906B2 (en) | 1991-06-27 |
GB8812699D0 (en) | 1988-06-29 |
CH677063A5 (de) | 1991-04-15 |
NL8801356A (nl) | 1988-12-16 |
AR245876A1 (es) | 1994-03-30 |
ATA138888A (de) | 1993-11-15 |
ZA883697B (en) | 1989-02-22 |
ES2009926A6 (es) | 1989-10-16 |
IT1219696B (it) | 1990-05-24 |
DE3817889A1 (de) | 1988-12-15 |
IN171503B (de) | 1992-10-31 |
FR2615752B1 (fr) | 1992-06-19 |
GB8712617D0 (en) | 1987-07-01 |
DK171907B1 (da) | 1997-08-11 |
FI882457A0 (fi) | 1988-05-25 |
DK287988A (da) | 1988-11-29 |
SG97291G (en) | 1992-01-17 |
GB2205102B (en) | 1991-09-18 |
HK6192A (en) | 1992-01-17 |
NZ224797A (en) | 1990-04-26 |
CY1624A (en) | 1992-07-10 |
DK287988D0 (da) | 1988-05-26 |
AU1659688A (en) | 1988-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
ELJ | Ceased due to non-payment of the annual fee |