DE1110396B - Process for the production of foam rubber from latex mixtures and gas-evolving substances - Google Patents

Process for the production of foam rubber from latex mixtures and gas-evolving substances

Info

Publication number
DE1110396B
DE1110396B DEM43531A DEM0043531A DE1110396B DE 1110396 B DE1110396 B DE 1110396B DE M43531 A DEM43531 A DE M43531A DE M0043531 A DEM0043531 A DE M0043531A DE 1110396 B DE1110396 B DE 1110396B
Authority
DE
Germany
Prior art keywords
gas
foam rubber
liquid mixture
production
nozzle
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.)
Pending
Application number
DEM43531A
Other languages
German (de)
Inventor
Dr Eduard Papst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DEM36303A external-priority patent/DE1101746B/en
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Priority to DEM43531A priority Critical patent/DE1110396B/en
Publication of DE1110396B publication Critical patent/DE1110396B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • 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
    • C08J2321/02—Latex

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Description

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

M 43531X/39 aM 43531X / 39 a

ANMELDETAG: 28. NOVEMBER 1959 REGISTRATION DATE: NOVEMBER 28, 1959

BEKANNTMACHUNG
DER ANMELDUNG
UNDAUSGABE DER
AUSLEGESCHRIFT: 6. JULI 1961 NOTICE
THE REGISTRATION
AND ISSUE OF
EDITORIAL: JULY 6, 1961

Die Patentanmeldung M 36303X/39 a betrifft ein Verfahren zur Herstellung von Schaumgummi aus vulkanisierbaren Latexmischungen, bei dem mit einer Spritzpistole die einen Zerfallsbeschleuniger, Wasserstoffsuperoxyd als gasentwickelnde Substanz und Ammonchlorid oder Ammonnitrat oder Natriumsilicofiuorid als Geliermittel enthaltende Latexmischung in einem einzigen Strahl mittels Druckluft auf einen Träger aufgesprüht wird. Der gebildete Schaum wird den Erfordernissen des betreffenden Geliermittels entsprechend geliert, vulkanisiert und gegebenenfalls vom Träger abgezogen.The patent application M 36303X / 39 a relates to a Process for the production of foam rubber from vulcanizable latex mixtures, in which with a Spray gun which has a decay accelerator, hydrogen peroxide as a gas-evolving substance and A latex mixture containing ammonium chloride or ammonium nitrate or sodium silicofluoride as a gelling agent is sprayed onto a carrier in a single jet by means of compressed air. The educated Foam is gelled, vulcanized and in accordance with the requirements of the gelling agent in question possibly deducted from the carrier.

Es wurde nun gefunden, daß es nicht unbedingt erforderlich ist, das aus den Mischungskomponenten hergestellte Flüssigkeitsgemisch mittels Druckluft aus J-5 einer Spritzpistole auf den Träger aufzusprühen, sondern daß es · auch möglich ist, dieses Flüssigkeitsgemisch nach getrennter Zuführung der beiden Komponenten entweder mittels mechanischen Druckes oder mittels Eigendruckes, was beides an sich für das Aufsprühen von Kautschukdispersionen bereits bekannt ist, durch eine Düse zu pressen und dem Träger zuzuführen. Insbesondere wenn beabsichtigt ist, Nadelflorteppiche mit einer Schaumgummischicht zu versehen, hat es sich gezeigt, daß der durch die Druckluft hervorgerufene Sprüheffekt nicht unbedingt erforderlich ist, vielmehr infolge Sprühnebelbildung auch Nachteile zeigt, und daß daher die Schaumgummischicht in einer Weise, die technisch mindestens gleichwertig ist, auf den Teppichrücken aufgetragen werden kann, wenn man auf die Versprühung des Flüssigkeitsgemisches mittels Druckluft verzichtet.It has now been found that it is not absolutely necessary to obtain that from the mixture components Liquid mixture produced from J-5 using compressed air a spray gun onto the carrier, but that it is also possible to use this liquid mixture after the two components have been supplied separately either by means of mechanical pressure or by means of self-pressure, which are both in themselves for the Spraying of rubber dispersions is already known to press through a nozzle and the To supply carrier. Especially when it is intended, tufted carpets with a foam rubber layer to provide, it has been shown that the spray effect caused by the compressed air is not necessarily is required, rather shows disadvantages due to spray formation, and that therefore the Foam rubber layer in a manner that is at least technically equivalent on the carpet backing can be applied if one looks at the spraying of the liquid mixture by means of compressed air waived.

Das Verfahren wird daher erfindungsgemäß so ausgeführt, daß das Flüssigkeitsgemisch in an sich bekannter Weise mittels mechanischen Druckes oder Eigendrackes aus der Düse der Spritzpistole dem Träger zugeführt wird. Bei der Anwendung mechanischen Druckes können die Genlischkomponenten mittels Pumpen einer Mischdüse zugeführt werden, in der das Flüssigkeitsgemisch gebildet und anschließend durch die Düse ausgetragen wird. Bei Anwendung von Eigendruck werden die Komponenten zunächst einer Mischkammer zugeführt, in der bereits die Gasentwicklung beginnt, wodurch in dem Flüssigkeitsgemisch ein gewisser Eigendruck erzeugt wird, der ausreicht, das Gemisch aus der Düse auszupressen, um es dem Träger zuzuführen. Dabei muß beachtet werden, daß der Überdruck im Flüssigkeitsgemisch nicht größer wird als der darüber lastende hydrostatische Druck der Komponenten. Das Flüssigkeitsgemisch kann aber gegebenenfalls auch schon, Verfahren zur HerstellungThe method is therefore carried out according to the invention so that the liquid mixture in itself known way by means of mechanical pressure or Eigendrackes from the nozzle of the spray gun Carrier is fed. When applying mechanical pressure, the genetic components be fed by means of pumps to a mixing nozzle in which the liquid mixture is formed and then is discharged through the nozzle. When applying self-pressure, the components are initially fed to a mixing chamber, in which the gas evolution already begins, whereby in the liquid mixture a certain intrinsic pressure is generated that is sufficient to squeeze the mixture out of the nozzle, to deliver it to the wearer. Care must be taken that the overpressure in the liquid mixture does not become greater than the overpressure hydrostatic pressure of the components. The liquid mixture can, however, also be, Method of manufacture

von Schaumgummi aus Latexmischungenof foam rubber made from latex compounds

und gasentwickelnden Substanzenand gas-evolving substances

Zusatz zur Patentanmeldung M 36303 X/39 a
(Auslegeschrift 1101746)Addition to patent application M 36303 X / 39 a
(Interpretation document 1101746)

Anmelder:Applicant:

Metallgesellschaft Aktiengesellschaft,
Frankfurt/M., Reuterweg 14Metallgesellschaft Aktiengesellschaft,
Frankfurt / M., Reuterweg 14

Dr. Eduard Papst, Neuahn, Hallein (Österreich),
ist als Erfinder genannt wordenDr. Eduard Papst, Neuahn, Hallein (Austria),
has been named as the inventor

bevor die Gasbildung begonnen hat, durch hydrostatischen Eigendruck ausgetragen werden.before gas formation has begun, are discharged by intrinsic hydrostatic pressure.

Durch die erfindungsgemäße Arbeitsweise ist gewährleistet, daß das Flüssigkeitsgemisch auf den Teppichrücken in einen Zustand aufgetragen wird, der noch ein gutes Eindringvermögen in den Teppichrücken gewährleistet, weil die Schaumbildung nur in einem geringen Maße begonnen hat und dadurch die Flüssigkeit noch die für ein gutes Eindringen in den Teppichrücken erforderliche Viskosität besitzt. Das Flüssigkeitsgemisch kann zur Herstellung von Teppichen mit Schaumgummibelag unmittelbar aus der Austrittsdüse auf den Teppichrücken aufgetragen und durch ein Streichmesser verteilt werden.The inventive method ensures that the liquid mixture on the Carpet backing is applied in a state that still has good penetration into the carpet backing guaranteed because the foam formation has started only to a small extent and thus the Liquid still has the viscosity required for good penetration into the carpet backing. That Liquid mixture can be used for the production of carpets with foam rubber flooring directly from the The outlet nozzle can be applied to the back of the carpet and distributed using a doctor knife.

Claims (3)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Verfahren zur Herstellung von Schaumgummi aus vulkanisierbaren Latexmischungen, bei dem mit einer Spritzpistole die einen Zerfallbeschleuniger, Wasserstoffsuperoxyd als gasentwickelnde Substanz und Ammonchlorid oder NatriumsilicofLuorid als Geliermittel enthaltende Latexmischung in einem Strahl auf einen Träger aufgesprüht werden, nach Patentanmeldung M 36303 X/39 a, dadurch gekennzeichnet, daß das Flüssigkeitsgemisch in an sich bekannter Weise mit mechanischem Druck oder Eigendruck aus der Düse der Spritzpistole dem Träger zugeführt wird.1. A process for the production of foam rubber from vulcanizable latex mixtures in which the latex mixture containing a decomposition accelerator, hydrogen peroxide as a gas-generating substance and ammonium chloride or sodium silicofluoride as a gelling agent is sprayed in a jet onto a carrier with a spray gun, according to patent application M 36303 X / 39 a, characterized in that the liquid mixture is fed to the carrier in a manner known per se with mechanical pressure or intrinsic pressure from the nozzle of the spray gun. 109 620/405109 620/405 2. Verfahren nach Anspruch!, dadurch ge- ' 2. The method according to claim !, thereby 3. Anwendung des Verfahrens nach Anspruch 13. Application of the method according to claim 1 kennzeichnet, daß der Eigendruck in einer voi und 2 zur Rückenbeschichtung von Nadelflor-indicates that the intrinsic pressure in a voi and 2 for the back coating of tufted dem Eintritt in die Düse angebrachten Misch- teppichen. mixed carpets attached to the inlet to the nozzle. kammer durch die beginnende Gasentwicklung · In Betracht gezogene Druckschriften:chamber due to the beginning of gas evolution. des Flüssigkeitsgemisches erzeugt wird.. 5 Deutsche Patentschriften Nr. 891737, 675 009.of the liquid mixture is generated .. 5 German patents No. 891737, 675 009. © 109 620/405 6. 61© 109 620/405 6. 61
DEM43531A 1957-12-31 1959-11-28 Process for the production of foam rubber from latex mixtures and gas-evolving substances Pending DE1110396B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM43531A DE1110396B (en) 1957-12-31 1959-11-28 Process for the production of foam rubber from latex mixtures and gas-evolving substances

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEM36303A DE1101746B (en) 1957-12-31 1957-12-31 Process for the production of foam rubber from vulcanizable latex mixtures
DEM43531A DE1110396B (en) 1957-12-31 1959-11-28 Process for the production of foam rubber from latex mixtures and gas-evolving substances

Publications (1)

Publication Number Publication Date
DE1110396B true DE1110396B (en) 1961-07-06

Family

ID=25986790

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM43531A Pending DE1110396B (en) 1957-12-31 1959-11-28 Process for the production of foam rubber from latex mixtures and gas-evolving substances

Country Status (1)

Country Link
DE (1) DE1110396B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE675009C (en) * 1936-03-13 1939-04-27 Bosch Gmbh Robert Spray gun
DE891737C (en) * 1951-05-16 1953-10-01 Heinrich E Abel Process for the manufacture of rubber-clad fabric

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE675009C (en) * 1936-03-13 1939-04-27 Bosch Gmbh Robert Spray gun
DE891737C (en) * 1951-05-16 1953-10-01 Heinrich E Abel Process for the manufacture of rubber-clad fabric

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