IT1035240B - Perfezionamento nei filtri per signarette o relativo ad essi - Google Patents
Perfezionamento nei filtri per signarette o relativo ad essiInfo
- Publication number
- IT1035240B IT1035240B IT49010/75A IT4901075A IT1035240B IT 1035240 B IT1035240 B IT 1035240B IT 49010/75 A IT49010/75 A IT 49010/75A IT 4901075 A IT4901075 A IT 4901075A IT 1035240 B IT1035240 B IT 1035240B
- Authority
- IT
- Italy
- Prior art keywords
- signarette
- filters
- improvement
- relative
- signarette filters
- Prior art date
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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
- A24D3/0237—Filter rod forming processes by extrusion
-
- 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
-
- 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
- Y10S264/14—Plastic and nonmetallic article shaping or treating: processes forming integral skin on a foamed product
-
- 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
- Y10S264/16—Molding foamed polypropylen articles
-
- 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
- Y10S264/17—Molding a foam containing a filler
-
- 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
- Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S521/908—Nucleating agent for cellular product
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16198/74A GB1482216A (en) | 1974-04-11 | 1974-04-11 | Cigarette filters |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1035240B true IT1035240B (it) | 1979-10-20 |
Family
ID=10072943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT49010/75A IT1035240B (it) | 1974-04-11 | 1975-04-09 | Perfezionamento nei filtri per signarette o relativo ad essi |
Country Status (8)
Country | Link |
---|---|
US (1) | US4054550A (it) |
JP (1) | JPS5318600B2 (it) |
AU (1) | AU498832B2 (it) |
CA (1) | CA1022421A (it) |
DE (1) | DE2515136C3 (it) |
FR (1) | FR2267056B1 (it) |
GB (1) | GB1482216A (it) |
IT (1) | IT1035240B (it) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4180536A (en) * | 1978-03-13 | 1979-12-25 | Celanese Corporation | Process for extruding plasticized open cell foamed cellulose acetate filters |
US4282890A (en) * | 1978-03-13 | 1981-08-11 | Celanese Corporation | Open cell structure foamed cellulose acetate filters |
JPS57197132A (en) * | 1981-05-29 | 1982-12-03 | Sumitomo Chem Co Ltd | Manufacture of polypropylene foam |
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 |
IT1189495B (it) * | 1986-05-09 | 1988-02-04 | S P T Srl | Fibre sintetice a voluminosita' aumentata,procedimento per produrle e loro uso in particolare per filtri |
US4961415A (en) * | 1987-01-16 | 1990-10-09 | Kimberly-Clark Corporation | Controlled draft and efficiency filter element for smoking articles |
GB8712617D0 (en) * | 1987-05-28 | 1987-07-01 | British American Tobacco Co | Tobacco smoke filters |
US4903714A (en) * | 1987-08-25 | 1990-02-27 | R. J. Reynolds Tobacco Company | Smoking article with improved mouthend piece |
US5286428A (en) * | 1987-10-16 | 1994-02-15 | Sekisui Kaseihin Kogyo Kabushiki Kaisha | Polypropylene resin foamed sheet for thermoforming and process for producing the same |
US5348795A (en) * | 1992-12-09 | 1994-09-20 | The Dow Chemical Company | Process for making a dimensionally-stable open-cell polypropylene foam with organic blowing agents |
US5538019A (en) * | 1993-11-03 | 1996-07-23 | Schweitzer-Mauduit International, Inc. | Spunbond cigarette filter |
US6395795B1 (en) | 2000-09-29 | 2002-05-28 | Ausimont Usa, Inc. | Titanium dioxide nucleating agent systems for foamable polymer compositions |
DE10145968B4 (de) * | 2001-09-18 | 2004-04-15 | Sartorius Ag | Filtrationsmembran |
US6863074B2 (en) * | 2002-08-30 | 2005-03-08 | Philip Morris Usa Inc. | Cigarette filters comprising unfunctionalized porous polyaromatic resins for removing gas phase constituents from mainstream tobacco smoke |
US9848636B2 (en) | 2013-09-05 | 2017-12-26 | Lorillard Tobacco Company | Filter components, filters, smoking articles, and related methods, all for the controlled delivery of aerosols |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU38122A1 (it) * | 1959-01-06 | |||
US3188295A (en) * | 1962-06-27 | 1965-06-08 | Dow Chemical Co | Method of foaming a thermoplastic organic polymer containing a nucleating agent and an organic bromide |
US3281513A (en) * | 1962-12-07 | 1966-10-25 | Tecalemit Engineering | Method of manufacturing a fluid filter |
US3358695A (en) * | 1962-12-18 | 1967-12-19 | Du Pont | Foams |
US3310617A (en) * | 1963-06-19 | 1967-03-21 | Shell Oil Co | Process for preparing uniform melt dispersion of blowing agent and polymer and its use in making foamed products |
GB1050711A (it) * | 1963-10-04 | 1900-01-01 | ||
NL142442B (nl) * | 1964-03-31 | 1974-06-17 | Shell Int Research | Werkwijze voor de vervaardiging van voorwerpen van polymeerschuim. |
GB1182646A (en) * | 1964-07-17 | 1970-02-25 | Monsanto Chemicals | Production of Foamed Products |
DE1694899A1 (de) * | 1965-12-09 | 1971-04-01 | Salamander Chem | Aktivatoren zur drucklosen Verschaeumung von Polyolefinen und der Mischpolymerisaten |
DE1794360A1 (de) * | 1966-09-30 | 1973-05-03 | Hayer Dieter Dipl Chem Dr | Aktivatoren zur drucklosen verschaeumung von polyolefinen und deren mischpolymerisaten |
GB1148119A (en) * | 1966-12-09 | 1969-04-10 | Monsanto Chemicals | Production of foamed resins |
GB1218438A (en) * | 1968-02-23 | 1971-01-06 | Japan Styrene Paper Corp | Improvements in or relating to the manufacture of foamed articles of thermoplastic materials |
GB1221488A (en) * | 1968-07-11 | 1971-02-03 | Monsanto Chemicals | Yarn production process |
GB1271274A (en) * | 1969-03-25 | 1972-04-19 | Monsanto Chemicals | Filtering element |
US3610509A (en) * | 1969-05-27 | 1971-10-05 | Thomas W Winstead | Skin-coated article formed of foamed thermoplastic material |
US3861404A (en) * | 1970-03-23 | 1975-01-21 | Monsanto Chemicals | Tobacco smoke filter |
US3755208A (en) * | 1970-10-23 | 1973-08-28 | Haskon Inc | Avoidance of cell collapse in an extrusion process for a copolymer based on a low molecular weight {60 -olefin and polar vinyl monomer |
US3939849A (en) * | 1970-11-18 | 1976-02-24 | Monsanto Chemicals Limited | Filter elements |
AT315709B (de) * | 1970-11-18 | 1974-06-10 | Monsanto Chemicals | Filterelemente |
GB1341400A (en) * | 1971-04-16 | 1973-12-19 | Monsanto Chemicals | Cigarette filters |
JPS4848562A (it) * | 1971-10-23 | 1973-07-10 | ||
US3785919A (en) * | 1971-11-09 | 1974-01-15 | Du Pont | Composite filament with elastomeric core and microapertured polypropylene foam sheath and process therefor |
US3939237A (en) * | 1971-11-19 | 1976-02-17 | Asahi Dow, Ltd. | Method of making a fluid transmitting porous tube or sheet |
BE789774A (fr) * | 1972-02-18 | 1973-02-01 | Sinclair Koppers Co | Procede et appareil pour la fabrication de profiles en mousse |
JPS4936770A (it) * | 1972-08-11 | 1974-04-05 |
-
1974
- 1974-04-11 GB GB16198/74A patent/GB1482216A/en not_active Expired
-
1975
- 1975-04-07 AU AU79907/75A patent/AU498832B2/en not_active Expired
- 1975-04-08 DE DE2515136A patent/DE2515136C3/de not_active Expired
- 1975-04-09 IT IT49010/75A patent/IT1035240B/it active
- 1975-04-09 US US05/566,508 patent/US4054550A/en not_active Expired - Lifetime
- 1975-04-10 FR FR7511181A patent/FR2267056B1/fr not_active Expired
- 1975-04-10 JP JP4386875A patent/JPS5318600B2/ja not_active Expired
- 1975-04-10 CA CA224,371A patent/CA1022421A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2515136B2 (de) | 1980-10-16 |
CA1022421A (en) | 1977-12-13 |
GB1482216A (en) | 1977-08-10 |
JPS5318600B2 (it) | 1978-06-15 |
US4054550A (en) | 1977-10-18 |
FR2267056B1 (it) | 1977-04-15 |
AU498832B2 (en) | 1979-03-29 |
AU7990775A (en) | 1976-10-14 |
JPS50142800A (it) | 1975-11-17 |
DE2515136A1 (de) | 1975-12-18 |
FR2267056A1 (it) | 1975-11-07 |
DE2515136C3 (de) | 1981-09-10 |
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