DE255679C - - Google Patents

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Publication number
DE255679C
DE255679C DENDAT255679D DE255679DA DE255679C DE 255679 C DE255679 C DE 255679C DE NDAT255679 D DENDAT255679 D DE NDAT255679D DE 255679D A DE255679D A DE 255679DA DE 255679 C DE255679 C DE 255679C
Authority
DE
Germany
Prior art keywords
rubber
erythrene
isoprene
mixtures
closely related
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.)
Active
Application number
DENDAT255679D
Other languages
German (de)
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.)
Publication of DE255679C publication Critical patent/DE255679C/de
Active legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F236/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Materials For Medical Uses (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Description

DEUTSCHES REICHGERMAN EMPIRE

R EICH S PATE NTAMTREICH S PATE NT OFFICE

PATENTSCHRIFTPATENT LETTERING

— JV! 255679 — KLASSE 39*. GRUPPE - JV! 255679 - CLASS 39 *. GROUP

Verfahren zur Herstellung von künstlichem Kautschuk.Process for the production of artificial rubber.

Zusatz zum Patent 250690.*)Addition to patent 250690. *)

Patentiert im Deutschen Reiche vom 1. April 1910 ab. Längste Dauer: 11. September 1924.Patented in the German Empire on April 1, 1910. Longest duration: September 11, 1924.

In den französischen Patenten 418544 vom 23. Juli 1910, 419316 vom 12. August 1910In French patents 418544 of July 23, 1910, 419316 of August 12, 1910

. und 422955 vom 29. Oktober 1910 sind Verfahren zur Darstellung von künstlichem Kautschuk beschrieben, welche darin bestehen, daß nian Isopren, Erythren oder ähnlich konstituierte Kohlenwasserstoffe mit doppelter Bindung in Kautschuk bzw. dem Kautschuk nahestehende Substanzen überführt.. and 422955 dated October 29, 1910 are proceedings for the representation of artificial rubber described, which consist in that nian isoprene, erythrene or similarly constituted hydrocarbons with double bonds converted into rubber or substances closely related to rubber.

Es wurde nun gefunden, daß man bei diesen Verfahren vorteilhaft Mischungen der in den oben genannten Patenten erwähnten Ausgangsmaterialien verwenden kann. Die Verwendung von solchen Mischungen hat den Vorteil, daß man direkt homogene kautschukartige Massen erhält, was durch nachträgliches Mischen der verschiedenen Arten dieser kautschukähnlichen Produkte nicht möglich ist.It has now been found that mixtures of the in the above-mentioned patents can use starting materials. The usage Mixtures of this type have the advantage that homogeneous rubber-like compounds are obtained directly, which can be achieved afterwards Mixing the different types of these rubber-like products is not possible.

Beispiel:Example:

Eine Mischung von 100 Teilen Isopren und 100 Teilen abgekühltem Erythren wird imA mixture of 100 parts of isoprene and 100 parts of chilled erythrene is im

*) Früheres Zusatzpatent: 254672.*) Previous additional patent: 254672.

Autoklaven 480 Stunden auf 120° erhitzt. Es hat sich dann eine sehr zähe, elastische Masse gebildet, die durch Durchleiten von Wasserdampf in eine dem natürlichen Kautschuk nahestehende Substanz übergeht.Autoclave heated to 120 ° for 480 hours. It a very tough, elastic mass has then formed, which is created by the passage of water vapor changes into a substance similar to natural rubber.

Das Verfahren verläuft in analoger Weise bei Verwendung von anderen der in den oben genannten Patenten erwähnten Kohlenwasserstoffe, sowie bei Verwendung von die Polymerisation befördernden Mitteln, wie Säuren oder sauren Salzen usw.The procedure proceeds in an analogous manner when using other of those described above mentioned patents mentioned hydrocarbons, as well as when using the polymerization conveying agents, such as acids or acidic salts, etc.

Claims (1)

Patent-Anspruch :Patent claim: 3535 Abänderung des durch Patent 250690 geschützten Verfahrens zur Darstellung. von Kautschuk bzw. dem Kautschuk nahestehenden Substanzen, darin bestehend, daß man anstatt Isopren hier Mischungen aus Erythren, seinen Homologen und Analogen mit oder ohne Zusatz von die Polymerisation befördernden Mitteln verwendet. Modification of the method of representation protected by patent 250690. from Rubber or substances closely related to rubber, consisting of that instead of isoprene, mixtures of erythrene, its homologues and analogs are used here used with or without the addition of polymerization promoting agents.
DENDAT255679D 1909-09-11 Active DE255679C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE250690T 1909-09-11

Publications (1)

Publication Number Publication Date
DE255679C true DE255679C (en)

Family

ID=32852096

Family Applications (3)

Application Number Title Priority Date Filing Date
DENDAT254672D Active DE254672C (en) 1909-09-11
DENDAT255679D Active DE255679C (en) 1909-09-11
DE1909250690D Expired - Lifetime DE250690C (en) 1909-09-11 1909-09-11

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DENDAT254672D Active DE254672C (en) 1909-09-11

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1909250690D Expired - Lifetime DE250690C (en) 1909-09-11 1909-09-11

Country Status (3)

Country Link
DE (3) DE250690C (en)
FR (3) FR419316A (en)
GB (2) GB191017734A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10654110B2 (en) 2017-03-22 2020-05-19 Kennametal Inc. Cutting tool, in particular a boring bar, and method for machining a number of holes
US11590583B2 (en) 2017-09-22 2023-02-28 Kennametal Inc. Machining tool, processing device and method for processing workpieces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10654110B2 (en) 2017-03-22 2020-05-19 Kennametal Inc. Cutting tool, in particular a boring bar, and method for machining a number of holes
US11590583B2 (en) 2017-09-22 2023-02-28 Kennametal Inc. Machining tool, processing device and method for processing workpieces

Also Published As

Publication number Publication date
FR17067E (en) 1913-06-19
DE254672C (en)
GB191017734A (en) 1911-06-08
FR419316A (en) 1911-01-04
GB191106540A (en) 1911-07-27
FR13931E (en) 1911-08-07
DE250690C (en)

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