MTP842B - Open-cell structure foamed cellulose acetate filters - Google Patents
Open-cell structure foamed cellulose acetate filtersInfo
- Publication number
- MTP842B MTP842B MT842A MTP842A MTP842B MT P842 B MTP842 B MT P842B MT 842 A MT842 A MT 842A MT P842 A MTP842 A MT P842A MT P842 B MTP842 B MT P842B
- Authority
- MT
- Malta
- Prior art keywords
- open
- cellulose acetate
- cell structure
- acetate filters
- foamed cellulose
- Prior art date
Links
- 229920002301 cellulose acetate Polymers 0.000 title 1
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
- C08J9/04—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
-
- 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
- A24D3/0237—Filter rod forming processes by extrusion
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/55—Screws having reverse-feeding elements
-
- 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
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- 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
- C08J9/0066—Use of inorganic compounding ingredients
-
- 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
- C08J9/0085—Use of fibrous compounding ingredients
-
- 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
- C08J9/14—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 organic
- C08J9/142—Compounds containing oxygen but no halogen atom
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
- B29K2001/08—Cellulose derivatives
- B29K2001/12—Cellulose acetate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
- B29K2105/045—Condition, form or state of moulded material or of the material to be shaped cellular or porous with open cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/14—Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/7414—Smokers'' requisites, e.g. pipe cleaners
- B29L2031/7416—Smokers'' requisites, e.g. pipe cleaners for cigars or cigarettes
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/12—Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
-
- 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
- C08J2207/00—Foams characterised by their intended use
- C08J2207/04—Aerosol, e.g. polyurethane foam spray
-
- 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
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/08—Cellulose derivatives
- C08J2301/10—Esters of organic acids
- C08J2301/12—Cellulose acetate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/05—Use of one or more blowing agents together
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/13—Cell size and distribution control while molding a foam
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Emergency Medicine (AREA)
- Inorganic Chemistry (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Filtering Materials (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Cell Separators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/886,201 US4180536A (en) | 1978-03-13 | 1978-03-13 | Process for extruding plasticized open cell foamed cellulose acetate filters |
Publications (1)
Publication Number | Publication Date |
---|---|
MTP842B true MTP842B (en) | 1981-06-18 |
Family
ID=25388601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MT842A MTP842B (en) | 1978-03-13 | 1979-02-26 | Open-cell structure foamed cellulose acetate filters |
Country Status (38)
Country | Link |
---|---|
US (1) | US4180536A (es) |
JP (1) | JPS54128070A (es) |
AR (1) | AR216839A1 (es) |
AT (1) | AT372250B (es) |
AU (1) | AU523075B2 (es) |
BE (1) | BE874772A (es) |
BR (1) | BR7901524A (es) |
CA (1) | CA1130516A (es) |
DD (1) | DD143882A5 (es) |
DE (1) | DE2909096A1 (es) |
DK (1) | DK101579A (es) |
EG (1) | EG14596A (es) |
ES (1) | ES478534A1 (es) |
FI (1) | FI790848A (es) |
FR (1) | FR2419751A1 (es) |
GB (2) | GB2091738B (es) |
GR (1) | GR66584B (es) |
IE (1) | IE48900B1 (es) |
IL (1) | IL56826A (es) |
IT (1) | IT1111534B (es) |
KE (1) | KE3332A (es) |
LU (1) | LU81034A1 (es) |
MT (1) | MTP842B (es) |
MW (1) | MW679A1 (es) |
MX (1) | MX150672A (es) |
MY (1) | MY8500088A (es) |
NL (1) | NL7901704A (es) |
NO (1) | NO790820L (es) |
NZ (1) | NZ189882A (es) |
OA (1) | OA06214A (es) |
PH (1) | PH15810A (es) |
PL (1) | PL118832B1 (es) |
PT (1) | PT69315A (es) |
SE (1) | SE7902211L (es) |
SG (1) | SG59683G (es) |
YU (1) | YU40841B (es) |
ZA (1) | ZA791181B (es) |
ZM (1) | ZM2079A1 (es) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4507256A (en) * | 1983-05-26 | 1985-03-26 | Eastman Kodak Company | Process for foaming cellulose acetate rod |
US4576769A (en) * | 1984-03-29 | 1986-03-18 | Celanese Corporation | Process for extruding and sizing foamed thermoplastic cigarette filter rods |
JPS61127741A (ja) * | 1984-11-28 | 1986-06-16 | Daicel Chem Ind Ltd | 酢酸セルロ−ス多孔質成形体及びその製造方法 |
GB8712617D0 (en) * | 1987-05-28 | 1987-07-01 | British American Tobacco Co | Tobacco smoke filters |
US4980063A (en) * | 1989-01-27 | 1990-12-25 | The Dow Chemical Company | Compositions useful for preparing cellulose ester membranes for liquid separations |
JP2947574B2 (ja) * | 1989-11-17 | 1999-09-13 | ダイセル化学工業株式会社 | 高捲縮弾性率アセテートトウおよびその製造方法 |
JPH0421275A (ja) * | 1990-05-15 | 1992-01-24 | Victor Co Of Japan Ltd | 小型ビデオ装置及びカメラホルダ |
FR2663860B1 (fr) * | 1990-07-02 | 1994-03-04 | Sollac | Filtre utilisable pour la separation des composes siliciques contenus dans un bain acide, procede et dispositif pour separarer lesdits composes siliciques. |
AU3968993A (en) * | 1992-03-31 | 1993-11-08 | W.R. Grace & Co.-Conn. | Thermoplastic syntactic foam pipe insulation |
US5275859A (en) * | 1992-12-21 | 1994-01-04 | Eastman Kodak Company | Tobacco smoke filter |
DE4322966C2 (de) * | 1993-07-09 | 1995-10-26 | Rhodia Ag Rhone Poulenc | Aus Celluloseacetat geformte Gebilde und ihre Verwendung als Filtertow und Tabakrauchfilterelement |
EP0714419A4 (en) * | 1993-08-10 | 1996-11-13 | Planet Polymer Tech Inc | BODEGRADABLE COPOSTABLE PLASTIC AND METHOD FOR PRODUCING THE SAME |
GB9407715D0 (en) * | 1994-04-19 | 1994-06-15 | British American Tobacco Co | Improvements relating to tobacco smoke filter elements |
US5498468A (en) * | 1994-09-23 | 1996-03-12 | Kimberly-Clark Corporation | Fabrics composed of ribbon-like fibrous material and method to make the same |
US6057024A (en) * | 1997-10-31 | 2000-05-02 | Kimberly-Clark Worldwide, Inc. | Composite elastic material with ribbon-shaped filaments |
US6435853B1 (en) * | 1999-06-18 | 2002-08-20 | The Japan Steelworks, Ltd. | Apparatus for plasticizing material for molding thermoplastic resin foam |
US6642429B1 (en) | 1999-06-30 | 2003-11-04 | Kimberly-Clark Worldwide, Inc. | Personal care articles with reduced polymer fibers |
KR200205953Y1 (ko) * | 2000-07-20 | 2000-12-01 | 조현국 | 미생물 접촉용 오,폐수,하수처리 여재의 제조장치 |
DE10153820A1 (de) * | 2001-11-05 | 2003-05-15 | Hauni Maschinenbau Ag | Filtersegmente oder Filter für Zigaretten sowie Verfahren zu ihrer Herstellung |
EP1512336B1 (de) * | 2003-09-03 | 2007-05-02 | Hauni Maschinbau AG | Verfahren und Vorrichtung zur Herstellung eines Filterstrangs |
DE502004003664D1 (de) * | 2003-09-03 | 2007-06-14 | Hauni Maschinenbau Ag | Verfahren und Vorrichtung zur Herstellung eines Filterstrangs |
US7585441B2 (en) * | 2004-06-25 | 2009-09-08 | Celanese Acetate, Llc | Process of making cellulose acetate tow |
US9212290B2 (en) | 2012-01-27 | 2015-12-15 | Celanese Acetate Llc | Substituted cellulose acetates and uses thereof |
US9167830B2 (en) | 2012-01-27 | 2015-10-27 | Celanese Acetate Llc | Substituted cellulose acetates and uses thereof |
US9023757B2 (en) | 2012-01-27 | 2015-05-05 | Celanese Acetate Llc | Substituted cellulose acetates and uses thereof |
WO2014046679A1 (en) | 2012-09-24 | 2014-03-27 | Celanese Acetate Llc | Wood laminate articles comprising substituted cellulose ester adhesives and methods relating thereto |
US9090045B2 (en) | 2012-09-24 | 2015-07-28 | Celanese Acetate Llc | Engineered wood produced with substituted cellulose ester adhesives and methods relating thereto |
GB201310599D0 (en) * | 2013-06-13 | 2013-07-31 | Filtrona Filter Prod Dev Co | Tabacco smoke filter |
CN104055221B (zh) * | 2014-06-19 | 2016-06-29 | 福建中烟工业有限责任公司 | 甘油施加防错控制方法、装置和系统 |
JP6416512B2 (ja) * | 2014-06-19 | 2018-10-31 | 株式会社ダイセル | 中空状たばこフィルター部材の製造方法 |
WO2020100872A1 (ja) * | 2018-11-14 | 2020-05-22 | 日本たばこ産業株式会社 | フィルターセグメント、非燃焼加熱喫煙物品及び非燃焼加熱喫煙システム |
CN115003739A (zh) * | 2020-01-20 | 2022-09-02 | 伊士曼化工公司 | 由乙酸纤维素制成的可生物降解的组合物和制品 |
KR102386081B1 (ko) * | 2020-04-22 | 2022-04-12 | 주식회사 케이티앤지 | 흡연 물품용 필터 및 이를 포함하는 흡연 물품 |
CN117693554A (zh) * | 2021-07-19 | 2024-03-12 | 伊士曼化工公司 | 可发泡的乙酸纤维素组合物、泡沫和由其形成的泡沫制品 |
EP4396272A1 (en) * | 2021-09-03 | 2024-07-10 | Eastman Chemical Company | Cellulose acetate foams |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA651163A (en) * | 1962-10-30 | E. Yarsley Victor | Tobacco smoke filter material | |
US2085293A (en) * | 1936-05-27 | 1937-06-29 | Hildegarde M Buffington | Smoker's article |
US2242372A (en) * | 1938-07-26 | 1941-05-20 | Celanese Corp | Method of making porous articles |
US2372695A (en) * | 1939-06-08 | 1945-04-03 | Celanese Corp | Production of thermoplastic materials in fibrous or cellular form |
FR921677A (fr) * | 1946-01-17 | 1947-05-14 | Du Pont | Produits plastiques cellulaires, leur procédé de fabrication et leurs applications |
US3148101A (en) * | 1958-06-26 | 1964-09-08 | Celanese Corp | Process for making non-woven batt |
LU38122A1 (es) * | 1959-01-06 | |||
US3121911A (en) * | 1961-03-08 | 1964-02-25 | Monsanto Chemicals | Foamed resin extrusion process and apparatus |
US3358695A (en) * | 1962-12-18 | 1967-12-19 | Du Pont | Foams |
CH438712A (de) * | 1963-12-14 | 1967-06-30 | Bayer Ag | Verfahren zur Herstellung von geschäumten thermoplastischen Materialien |
GB1182646A (en) * | 1964-07-17 | 1970-02-25 | Monsanto Chemicals | Production of Foamed Products |
US3502754A (en) * | 1965-05-21 | 1970-03-24 | Owens Illinois Inc | Process of extruding a cellular polymeric composition |
US3836615A (en) * | 1966-07-01 | 1974-09-17 | Celanese Corp | Method of forming cylindrical foamed cellulose rods enclosed in a rigid skin |
US3574803A (en) * | 1966-11-15 | 1971-04-13 | Celanese Corp | Method of manufacturing a foamed cellulose ester filter |
GB1220086A (en) | 1967-03-30 | 1971-01-20 | Courtaulds Ltd | Tobacco smoke filters |
US3843757A (en) * | 1967-11-15 | 1974-10-22 | Hercules Inc | Process for extruding foamed thermoplastics by utilizing an intermeshing co-rotating twin screw extruder |
GB1203498A (en) * | 1968-03-11 | 1970-08-26 | Monsanto Chemicals | Foamed resins production |
GB1279803A (en) | 1968-10-30 | 1972-06-28 | Monsanto Chemicals | Smoke-filtering elements |
GB1271274A (en) | 1969-03-25 | 1972-04-19 | Monsanto Chemicals | Filtering element |
GB1319599A (en) | 1969-11-03 | 1973-06-06 | Monsanto Chemicals | Foamed resins |
US3861404A (en) * | 1970-03-23 | 1975-01-21 | Monsanto Chemicals | Tobacco smoke filter |
US3939849A (en) * | 1970-11-18 | 1976-02-24 | Monsanto Chemicals Limited | Filter elements |
US3939237A (en) * | 1971-11-19 | 1976-02-17 | Asahi Dow, Ltd. | Method of making a fluid transmitting porous tube or sheet |
GB1482216A (en) * | 1974-04-11 | 1977-08-10 | Monsanto Ltd | Cigarette filters |
US4075265A (en) * | 1975-07-18 | 1978-02-21 | Monsanto Research Corporation | Process for making instant shaped foams |
-
1978
- 1978-03-13 US US05/886,201 patent/US4180536A/en not_active Expired - Lifetime
-
1979
- 1979-02-26 MT MT842A patent/MTP842B/xx unknown
- 1979-03-02 NL NL7901704A patent/NL7901704A/xx not_active Application Discontinuation
- 1979-03-05 PH PH22251A patent/PH15810A/en unknown
- 1979-03-06 GR GR58526A patent/GR66584B/el unknown
- 1979-03-06 MW MW6/79A patent/MW679A1/xx unknown
- 1979-03-07 AU AU44898/79A patent/AU523075B2/en not_active Expired
- 1979-03-07 AT AT0171779A patent/AT372250B/de not_active IP Right Cessation
- 1979-03-07 PT PT69315A patent/PT69315A/pt unknown
- 1979-03-08 ZM ZM20/79A patent/ZM2079A1/xx unknown
- 1979-03-08 JP JP2622479A patent/JPS54128070A/ja active Granted
- 1979-03-08 DE DE19792909096 patent/DE2909096A1/de active Granted
- 1979-03-09 FR FR7906126A patent/FR2419751A1/fr active Granted
- 1979-03-09 IL IL56826A patent/IL56826A/xx unknown
- 1979-03-12 BR BR7901524A patent/BR7901524A/pt unknown
- 1979-03-12 BE BE0/193969A patent/BE874772A/xx not_active IP Right Cessation
- 1979-03-12 CA CA323,199A patent/CA1130516A/en not_active Expired
- 1979-03-12 DD DD79211535A patent/DD143882A5/de unknown
- 1979-03-12 MX MX176891A patent/MX150672A/es unknown
- 1979-03-12 IT IT20922/79A patent/IT1111534B/it active
- 1979-03-12 ES ES478534A patent/ES478534A1/es not_active Expired
- 1979-03-12 LU LU81034A patent/LU81034A1/xx unknown
- 1979-03-12 DK DK101579A patent/DK101579A/da not_active Application Discontinuation
- 1979-03-12 NO NO790820A patent/NO790820L/no unknown
- 1979-03-12 NZ NZ189882A patent/NZ189882A/xx unknown
- 1979-03-12 EG EG79158A patent/EG14596A/xx active
- 1979-03-12 SE SE7902211A patent/SE7902211L/xx not_active Application Discontinuation
- 1979-03-13 GB GB8133520A patent/GB2091738B/en not_active Expired
- 1979-03-13 PL PL1979214093A patent/PL118832B1/pl unknown
- 1979-03-13 OA OA56765A patent/OA06214A/xx unknown
- 1979-03-13 GB GB7908813A patent/GB2015921B/en not_active Expired
- 1979-03-13 YU YU611/79A patent/YU40841B/xx unknown
- 1979-03-13 FI FI790848A patent/FI790848A/fi not_active Application Discontinuation
- 1979-03-13 ZA ZA791181A patent/ZA791181B/xx unknown
- 1979-03-13 AR AR275789A patent/AR216839A1/es active
- 1979-08-08 IE IE722/79A patent/IE48900B1/en unknown
-
1983
- 1983-09-21 SG SG596/83A patent/SG59683G/en unknown
- 1983-09-27 KE KE3332A patent/KE3332A/xx unknown
-
1985
- 1985-12-30 MY MY88/85A patent/MY8500088A/xx unknown
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MTP842B (en) | Open-cell structure foamed cellulose acetate filters | |
AU2614577A (en) | Dishwasher filter flushing system | |
JPS56801A (en) | Cellulose ether | |
JPS5624151A (en) | Manufacture of filter structure | |
GB2035041B (en) | Cigarette filters | |
GB2020536B (en) | Cigarette filter | |
JPS5566233A (en) | Active filter | |
JPS54101570A (en) | Double medium filter | |
AU509480B1 (en) | Tobacco-smoke filter | |
AU530578B2 (en) | Cigarette filter | |
JPS54114953A (en) | Active filter | |
JPS5542547A (en) | Tobacco filter | |
JPS5333469A (en) | Method of filtrating cellulose acetate solution | |
GB2015318B (en) | Manufacture of ventilated filter cigarettes | |
JPS553414A (en) | Fireeproofing cellulose acetate | |
JPS547679A (en) | Acetate filter | |
GB2021925B (en) | Cigarette filters | |
JPS5618583A (en) | Smoking pipe with filter | |
GB2033722B (en) | Cigarette filters | |
AU540494B2 (en) | Foamed cellulose metal filters | |
JPS5568282A (en) | Tobacco filter | |
JPS5529932A (en) | Tobacco filter | |
JPS5493899A (en) | Outer filter | |
JPS54142661A (en) | Filter medium | |
JPS5561448A (en) | Porous structure |