GB1257843A - - Google Patents
Info
- Publication number
- GB1257843A GB1257843A GB1257843DA GB1257843A GB 1257843 A GB1257843 A GB 1257843A GB 1257843D A GB1257843D A GB 1257843DA GB 1257843 A GB1257843 A GB 1257843A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibres
- fibre
- phenol
- formaldehyde
- cured
- Prior art date
- 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
- 239000000835 fiber Substances 0.000 abstract 3
- 229920003986 novolac Polymers 0.000 abstract 3
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 abstract 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 2
- 229920001568 phenolic resin Polymers 0.000 abstract 2
- 101100188552 Arabidopsis thaliana OCT3 gene Proteins 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000007859 condensation product Substances 0.000 abstract 1
- 239000008098 formaldehyde solution Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- -1 polypropylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 229920003987 resole Polymers 0.000 abstract 1
- 229910010271 silicon carbide Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000005292 vacuum distillation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/232—Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets
- B01D29/237—Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets with wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/04—Organic material, e.g. cellulose, cotton
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/18—Filters characterised by the openings or pores
- B01D2201/182—Filters characterised by the openings or pores for depth filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0654—Support layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/069—Special geometry of layers
- B01D2239/0695—Wound layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1233—Fibre diameter
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Filtering Materials (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
1,257,843. Phenol-formaldehyde fibres. CARBORUNDUM CO. 19 Sept., 1969 [3 Oct., 1968], No. 46284/69. Heading B5B. [Also in Divisions B1-B2] Phenol-formaldehyde condensation products, including resoles and novolacs are formed into fibres which are cured, before or after the fibres are woven, knitted, felted, batted, wound on a support or formed into paper-like medium with the addition of phenolic binder. In an example, specified proportions of phenol, formaldehyde, water and H 2 SO 4 are reacted forming a novolac which is dried by vacuum distillation, washed, and melted in an apertured vessel. A fibre of novolac is drawn off through the aperture, which is 1À9 mm. in dia., at 3000 feet per minute, and wound on to a graphite or polypropylene spool. The fibre is 12 microns in diameter, elliptical in section and brittle. The fibre is cured by immersing the loaded spool in a specified mixture of HCl and aqueous formaldehyde solution, which is progressively heated to 100‹ C. over several hours. Physical and chemical properties of the cured fibres are exemplified. Specification 1,256,924 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76484768A | 1968-10-03 | 1968-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1257843A true GB1257843A (en) | 1971-12-22 |
Family
ID=25071963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1257843D Expired GB1257843A (en) | 1968-10-03 | 1969-09-19 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5214465B1 (en) |
DE (1) | DE1948414C3 (en) |
FR (1) | FR2019819A1 (en) |
GB (1) | GB1257843A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7508708U (en) * | 1975-03-19 | 1976-04-15 | Lesk, Adolf, 6960 Osterburken | FLEXIBLE FABRIC WITH LARGE CONTINUOUS RESISTANCE |
-
1969
- 1969-09-19 GB GB1257843D patent/GB1257843A/en not_active Expired
- 1969-09-25 DE DE1948414A patent/DE1948414C3/en not_active Expired
- 1969-10-02 FR FR6933641A patent/FR2019819A1/fr not_active Withdrawn
- 1969-10-02 JP JP44078218A patent/JPS5214465B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS5214465B1 (en) | 1977-04-21 |
DE1948414A1 (en) | 1970-04-09 |
DE1948414C3 (en) | 1980-11-13 |
FR2019819A1 (en) | 1970-07-10 |
DE1948414B2 (en) | 1980-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |