DE425770C - Process for the production of rubber with a large number of microscopic pores - Google Patents
Process for the production of rubber with a large number of microscopic poresInfo
- Publication number
- DE425770C DE425770C DEB115876D DEB0115876D DE425770C DE 425770 C DE425770 C DE 425770C DE B115876 D DEB115876 D DE B115876D DE B0115876 D DEB0115876 D DE B0115876D DE 425770 C DE425770 C DE 425770C
- Authority
- DE
- Germany
- Prior art keywords
- rubber
- large number
- production
- pores
- jelly
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G1/00—Driving-belts
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
-
- 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
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C1/00—Treatment of rubber latex
- C08C1/14—Coagulation
- C08C1/15—Coagulation characterised by the coagulants used
-
- 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
- C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing 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
- C08J2321/00—Characterised by the use of unspecified rubbers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Description
Verfahren zur Herstellung von Kautschuk mit einer großen Anzahl mikroskopisch kleiner Poren. Es ist vorgeschlagen worden, porösen Gummi dadurch herzustellen, daß aus Kautschukmilch durch besondere Führung der Koagulierung der Kautschuk in poröser oder schwammförmiger Form abgeschieden und nach Zusatz solcher Stoffe, die sich durch Erhitzen oder durch Säurezusatz unter Entbindung von Gasen zersetzen, feucht vulkanisiert wird. Die so entstandenen nörper «-eisen stets Poren von solcher Größe auf, claß sie mit freiem Auge sichtbar sind und wohl den Gebrauch der Körper als Schwämme: ermöglichen, nicht aber als Filter zum Zurückhalten feinster Niederschläge oder als elektrolytische Diaphragmen. Die Herstellung von Gummi mit mikroskopisch kleinen Poren, welcher u. a. für die letztgenannten beiden Verwendungszwecke besonders geeignet ist, läßt sich dagegen nach der Erfindung ermöglichen. Sie besteht darin, daß Kautschukmilch durch hierzu bekannte 1-Iittel, wie z. B. Lösungen von 2vIagnesium- oder Bariumsalzen, in eine homogene zusammenhängende Gallerte verwandelt und diese unter Ver-:neidung der Verdampfung des in den Poren eingeschlossenen Wassers feucht vulkanisiert wird. Statt der unmittelbaren Umwandlung in eine Gallerte kann man die Kautschukmilch auch zunächst in Form eines Breies erstarren lassen, welcher sich von selbst in einiger Zeit in eine homogene zusammenhängende Gallerte verwandelt. Da die Gallerte den gesamten Wassergehalt der Kautschukmilch in denkbar feinster Verteilung gebunden enthält und bei der Vulkanisation sich die Form der einzelnen Kautschukteilchen nicht ändert, entsteht ein Körper, welcher nach dem Trocknen von einer Unzahl mikroskopisch kleiner Poren durchzogen ist.Process for the production of rubber with a large number microscopic small pores. It has been proposed to manufacture porous rubber by that from rubber milk by special guidance of the coagulation of the rubber in deposited porous or spongy form and after the addition of such substances that decompose through heating or the addition of acids, releasing gases, vulcanized when wet. The body iron produced in this way always has pores of the same Size on, claß they are visible to the naked eye and probably the use of the body as sponges: enable, but not as a filter to hold back the finest precipitation or as electrolytic diaphragms. The manufacture of rubber with microscopic small pores, which i.a. especially for the latter two purposes is suitable, however, can be made possible according to the invention. It consists in that rubber milk by this known 1-Iittel, such as. B. Solutions from 2vIagnesium or barium salts, transformed into a homogeneous, coherent jelly and this while avoiding evaporation of the water enclosed in the pores is vulcanized. Instead of the immediate transformation into a jelly, one can let the rubber milk solidify first in the form of a pulp, which transforms itself into a homogeneous, coherent jelly in some time. Because the jelly contains the entire water content of the rubber milk in the finest possible way Distribution contains bound and during vulcanization the shape of the individual Rubber particles do not change, a body is created, which after drying of is traversed by a myriad of microscopic pores.
Die feuchte Vulkanisation kann in beliebiger, an sich bekannter Weise
geschehen, z. B. indem man die Gallerte, welcher vor ihrem Erstarren feinst verteilter
Schwefel oder andere V ulkanisationätnittel beigemischt wurden, in Wasser oder Dampf
erhitzt oder indem man sie ohne vorherigen Zusatz der Vulkanisationsmittel abwechselnd
der Einwirkung von Schwefelwasserstoff und schwefliger Säure aussetzt. Selbstverständlich
dürfen der Kautschukmilch oder der Gallerte keinerlei Stoffe zugesetzt werden, welche
im Verlauf des Herstellungsverfahrens Gase oder Dämpfe erzeugen, da hierdurch größere
Poren entstehen würden. Beispiel.
Claims (1)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE425770T | 1924-09-27 | ||
DEB119491D DE437172C (en) | 1925-04-29 | 1925-04-29 | Process for the production of rubber with a large number of microscopic pores |
DE442619T | 1925-06-25 | ||
DE439980T | 1925-09-01 | ||
DE623943T | 1928-10-26 | ||
DE561568T | 1928-12-24 | ||
DE556904T | 1929-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE425770C true DE425770C (en) | 1926-02-24 |
Family
ID=31950948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB115876D Expired DE425770C (en) | 1924-09-27 | 1924-09-28 | Process for the production of rubber with a large number of microscopic pores |
Country Status (4)
Country | Link |
---|---|
BE (2) | BE335911A (en) |
DE (1) | DE425770C (en) |
FR (4) | FR606989A (en) |
GB (4) | GB262179A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE745525C (en) * | 1937-01-09 | 1944-03-13 | Ig Farbenindustrie Ag | Use of fabrics, felts, fleeces or loose layers of synthetic threads for filtering purposes |
DE886170C (en) * | 1936-07-25 | 1953-08-13 | Int Latex Processes Ltd | Anode for lead collectors and process for their manufacture |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2585143A (en) * | 1952-02-12 | Latex foam stabilized with ethyl |
-
0
- BE BE328056D patent/BE328056A/xx unknown
- BE BE335911D patent/BE335911A/xx unknown
-
1924
- 1924-09-28 DE DEB115876D patent/DE425770C/en not_active Expired
-
1925
- 1925-08-05 FR FR606989D patent/FR606989A/en not_active Expired
- 1925-09-02 GB GB21973/25A patent/GB262179A/en not_active Expired
-
1926
- 1926-08-03 GB GB19198/26A patent/GB257561A/en not_active Expired
- 1926-08-09 FR FR32422D patent/FR32422E/en not_active Expired
-
1929
- 1929-10-21 FR FR37521D patent/FR37521E/en not_active Expired
- 1929-10-25 GB GB32518/29A patent/GB338698A/en not_active Expired
-
1930
- 1930-04-28 FR FR38424D patent/FR38424E/en not_active Expired
- 1930-05-01 GB GB13493/30A patent/GB346588A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE886170C (en) * | 1936-07-25 | 1953-08-13 | Int Latex Processes Ltd | Anode for lead collectors and process for their manufacture |
DE745525C (en) * | 1937-01-09 | 1944-03-13 | Ig Farbenindustrie Ag | Use of fabrics, felts, fleeces or loose layers of synthetic threads for filtering purposes |
Also Published As
Publication number | Publication date |
---|---|
BE335911A (en) | |
FR38424E (en) | 1931-06-03 |
FR37521E (en) | 1930-12-20 |
BE328056A (en) | |
GB338698A (en) | 1930-11-27 |
GB257561A (en) | 1926-09-02 |
FR606989A (en) | 1926-06-23 |
FR32422E (en) | 1927-11-29 |
GB262179A (en) | 1926-12-02 |
GB346588A (en) | 1931-04-16 |
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