FR2249209B3 - - Google Patents
Info
- Publication number
- FR2249209B3 FR2249209B3 FR7435845A FR7435845A FR2249209B3 FR 2249209 B3 FR2249209 B3 FR 2249209B3 FR 7435845 A FR7435845 A FR 7435845A FR 7435845 A FR7435845 A FR 7435845A FR 2249209 B3 FR2249209 B3 FR 2249209B3
- Authority
- FR
- France
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/04—Kraft or sulfate pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/08—Filter paper
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4999473A GB1422860A (en) | 1973-10-26 | 1973-10-26 | Filter paper |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2249209A1 FR2249209A1 (fr) | 1975-05-23 |
FR2249209B3 true FR2249209B3 (fr) | 1977-08-05 |
Family
ID=10454260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7435845A Expired FR2249209B3 (fr) | 1973-10-26 | 1974-10-25 |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH580705A5 (fr) |
DE (1) | DE2450919A1 (fr) |
FR (1) | FR2249209B3 (fr) |
GB (1) | GB1422860A (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE413684C (sv) * | 1974-09-23 | 1987-05-07 | Mo Och Domsjoe Ab | Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 % |
US4245689A (en) | 1978-05-02 | 1981-01-20 | Georgia Bonded Fibers, Inc. | Dimensionally stable cellulosic backing web |
DE3610429A1 (de) * | 1986-03-27 | 1987-10-01 | Boehringer Mannheim Gmbh | Gerinnungsneutrale, hydrophile glasfasern |
IT1287629B1 (it) | 1996-03-06 | 1998-08-06 | Universal Filter Spa | Processo per la fabbricazione di un mezzo filtrante, mezzo cosi' fabbricato, e filtri impieganti detto mezzo |
US20030082979A1 (en) * | 2001-10-31 | 2003-05-01 | Kimberly-Clark Worldwide, Inc. | Pulp and conjugate glass fiber composite with enhanced stiffness and permeability |
US20090178970A1 (en) * | 2008-01-16 | 2009-07-16 | Ahlstrom Corporation | Coalescence media for separation of water-hydrocarbon emulsions |
US8833567B2 (en) | 2008-01-16 | 2014-09-16 | Ahlstrom Corporation | Coalescence media for separation of water-hydrocarbon emulsions |
CN113445365B (zh) * | 2020-03-26 | 2023-12-12 | 杭州特种纸业有限公司 | 一种定量滤纸及其制备方法 |
CN113529486A (zh) * | 2020-04-20 | 2021-10-22 | 杭州特种纸业有限公司 | 一种高强度高滤效复合空气滤纸 |
IT202000009073A1 (it) * | 2020-04-27 | 2021-10-27 | Gruppo Cordenons Spa | Materiale cartaceo per filtrazione aria e relativo procedimento di fabbricazione, dispositivo di protezione individuale comprendente tale materiale |
CN112160188A (zh) * | 2020-09-29 | 2021-01-01 | 天津科技大学 | 一种热固性机油滤纸及其制备方法 |
-
1973
- 1973-10-26 GB GB4999473A patent/GB1422860A/en not_active Expired
-
1974
- 1974-10-25 FR FR7435845A patent/FR2249209B3/fr not_active Expired
- 1974-10-25 DE DE19742450919 patent/DE2450919A1/de active Pending
- 1974-10-25 CH CH1434574A patent/CH580705A5/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH580705A5 (fr) | 1976-10-15 |
GB1422860A (en) | 1976-01-28 |
FR2249209A1 (fr) | 1975-05-23 |
DE2450919A1 (de) | 1975-04-30 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |