NL229718A - - Google Patents
Info
- Publication number
- NL229718A NL229718A NL229718A NL229718A NL229718A NL 229718 A NL229718 A NL 229718A NL 229718 A NL229718 A NL 229718A NL 229718 A NL229718 A NL 229718A NL 229718 A NL229718 A NL 229718A
- Authority
- NL
- Netherlands
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
- 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
- D21H13/42—Asbestos
-
- 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
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
-
- 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
-
- 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
- D21H5/18—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of inorganic fibres with or without cellulose fibres
- D21H5/183—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of inorganic fibres with or without cellulose fibres of asbestos fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Filtering Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR743659 | 1957-07-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL229718A true NL229718A (cs) | 1963-12-16 |
| NL108309C NL108309C (cs) | 1964-05-15 |
Family
ID=8704627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL229718A NL108309C (cs) | 1957-07-19 | 1958-07-18 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH377634A (cs) |
| FR (1) | FR1179152A (cs) |
| GB (1) | GB859023A (cs) |
| NL (1) | NL108309C (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6602625A (cs) * | 1965-03-01 | 1966-09-02 | ||
| CN116180494B (zh) * | 2023-02-03 | 2024-02-20 | 杭州科百特过滤器材有限公司 | 一种深层过滤纸板及其制备方法 |
-
1957
- 1957-07-19 FR FR1179152D patent/FR1179152A/fr not_active Expired
-
1958
- 1958-07-07 GB GB2166658A patent/GB859023A/en not_active Expired
- 1958-07-18 NL NL229718A patent/NL108309C/xx active
- 1958-07-19 CH CH6197258A patent/CH377634A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL108309C (cs) | 1964-05-15 |
| FR1179152A (fr) | 1959-05-21 |
| GB859023A (en) | 1961-01-18 |
| CH377634A (fr) | 1964-05-15 |
| DE1446619A1 (de) | 1968-11-28 |