DE889835C - Process for the production of polyvinyl chloride, particularly suitable for pastes - Google Patents

Process for the production of polyvinyl chloride, particularly suitable for pastes

Info

Publication number
DE889835C
DE889835C DED275A DED0000275A DE889835C DE 889835 C DE889835 C DE 889835C DE D275 A DED275 A DE D275A DE D0000275 A DED0000275 A DE D0000275A DE 889835 C DE889835 C DE 889835C
Authority
DE
Germany
Prior art keywords
production
polyvinyl chloride
pastes
particularly suitable
vinyl chloride
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
Application number
DED275A
Other languages
German (de)
Inventor
Wolfgang Dr Gruber
Herbert Dr Reinecke
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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
Application filed by Wacker Chemie AG filed Critical Wacker Chemie AG
Priority to DED275A priority Critical patent/DE889835C/en
Application granted granted Critical
Publication of DE889835C publication Critical patent/DE889835C/en
Expired legal-status Critical Current

Links

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
    • C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F14/02—Monomers containing chlorine
    • C08F14/04—Monomers containing two carbon atoms
    • C08F14/06—Vinyl chloride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)

Description

Verfahren zur Herstellung von insbesondere für Pasten geeignetem Polyvinylchlorid Es ist bekannt, Vinylchlorid in wäßriger Suspension in Gegenwart von Kolloiden, wie Gelatine, Pectin, Stärke und Polyvinylalkohol, zu polymerisieren, wobei das Polymerisat in körniger Form anfällt. Solche Polymerisate sind jedoch für die Pastenherstellung wenig geeignet.Process for the production of polyvinyl chloride which is particularly suitable for pastes It is known that vinyl chloride in aqueous suspension in the presence of colloids, such as gelatin, pectin, starch and polyvinyl alcohol, to polymerize, the Polymer is obtained in granular form. Such polymers are, however, for paste production not very suitable.

Es wurde nun gefunden, daß man körniges Polyvinylchlorid, das sich besonders für die Pastenherstellung eignet, erhält, wenn man Vinylchlorid nach dem Suspensionsverfahren mit wasserlöslichen Katalysatoren in Gegenwart von sehr geringen Mengen Polyvinylacetat, vornehmlich 0,05 bis 0,5 %, berechnet auf Vinylchlorid, polymerisiert. Die entwässerten Produkte ergeben beim Verarbeiten feit Weichmachern sehr gut fließfähige und haltbare Pasten, die außerdem besonders günstige elektrische Eigenschaften aufweisen.It has now been found that granular polyvinyl chloride, which is particularly suitable for paste production, is obtained if vinyl chloride is obtained by the suspension process with water-soluble catalysts in the presence of very small amounts of polyvinyl acetate, primarily 0.05 to 0.5%, calculated on vinyl chloride , polymerized. When processed, the dehydrated products result in pastes that are easy to flow and have a long shelf life, which also have particularly favorable electrical properties.

Beispiel Eine Mischung, bestehend aus 2,5 kg Wasser, i kg Vinylchlorid, o,5 g Kaliumpersulfat, 5 g Trinatriumphosphat und o,5 g Polyvinylacetat, wird bei 50° C So Stunden lang gerührt. Die erhaltene wäßrige Aufschlämmung von Polyvinylchlo-rid wird durch Absaugen vom Wasser befreit. Das Polymerisat besteht aus Teilchen von o,5 bis 2,5,u Durchmesser. Es ist zur Pastenherstellung geeignet, und die erhaltenen Produkte besitzen ausgezeichnete elektrische Eigenschaften.Example A mixture consisting of 2.5 kg of water, 1 kg of vinyl chloride, 0.5 g of potassium persulfate, 5 g of trisodium phosphate and 0.5 g of polyvinyl acetate is used in 50 ° C Stirred for hours. The obtained aqueous slurry of polyvinyl chloride is freed from the water by suction. The polymer consists of particles of o, 5 to 2.5, u Diameter. It is suitable for paste production, and the products obtained have excellent electrical properties.

Claims (1)

PATENTANSPRÜCHE: Verfahren zur Herstellung von insbesondere für Pasten geeignetem Polyvinylchlorid durch Polymerisation von Vinylchlorid nach dem Suspensionsverfahren in Gegenwart von wasserlöslichen Katalysatoren und Dispergiermitteln, dadurch gekennzeichnet, daß als Dispergierm.ittel Polyvinylacetat in sehr geringer Menge, vornehmlich. 0,05 bis 0,5 °/o, berechnet auf Vinylchlorid, verwendet wird. Abgezogene Druckschriften: österreichische Patentschrift Nr. 162 881; britische Patentschrift Nr. q.75 z62; _ französische Patentschrift Nr. 883 454, 8oi 034; USA.-Patentschrift Nr. 2 473 929e H. R. Fleck, The Theorie of Polymerisation, 1946, S.79; F. 1. A. T. Final Report No. 862, Polyvinyl Chloride Production at Burghausen and Ludwigshafen.PATENT CLAIMS: Process for the production of polyvinyl chloride, particularly suitable for pastes, by polymerizing vinyl chloride by the suspension process in the presence of water-soluble catalysts and dispersants, characterized in that the dispersant used is polyvinyl acetate in very small amounts, primarily. 0.05 to 0.5% , calculated on vinyl chloride, is used. Copied publications: Austrian patent specification No. 162 881; British Patent No. q.75 z62; _ French patent specification No. 883 454, 8oi 034; USA. Patent No. 2,473 929e HR Fleck, The theory of polymerization, 1946, p.79. F. 1. AT Final Report No. 862, Polyvinyl Chloride Production at Burghausen and Ludwigshafen.
DED275A 1949-11-01 1949-11-01 Process for the production of polyvinyl chloride, particularly suitable for pastes Expired DE889835C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED275A DE889835C (en) 1949-11-01 1949-11-01 Process for the production of polyvinyl chloride, particularly suitable for pastes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED275A DE889835C (en) 1949-11-01 1949-11-01 Process for the production of polyvinyl chloride, particularly suitable for pastes

Publications (1)

Publication Number Publication Date
DE889835C true DE889835C (en) 1953-09-14

Family

ID=7028626

Family Applications (1)

Application Number Title Priority Date Filing Date
DED275A Expired DE889835C (en) 1949-11-01 1949-11-01 Process for the production of polyvinyl chloride, particularly suitable for pastes

Country Status (1)

Country Link
DE (1) DE889835C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069387B (en) * 1956-10-09 1959-11-19 Wacker-Chemie G.m.b.H., München Process for the preparation of vinyl chloride polymers and copolymers
DE1083054B (en) * 1957-07-26 1960-06-09 Hoechst Ag Process for the production of polymers or copolymers of vinyl chloride suitable for pastes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR801034A (en) * 1935-01-19 1936-07-25 Chemische Forschungs Gmbh Polymerization products and their manufacturing process
GB475162A (en) * 1935-05-13 1937-11-12 Chemische Forschungs Gmbh Manufacture of emulsions and dispersions
FR883454A (en) * 1941-12-06 1943-07-13 Ig Farbenindustrie Ag Emulsion polymerization process
AT162881B (en) * 1942-06-27 1949-04-25 Lonza Ag Process for the preparation of aqueous emulsions of polyvinyl chloride
US2473929A (en) * 1946-02-18 1949-06-21 Shawinigan Resins Corp Polymerization process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR801034A (en) * 1935-01-19 1936-07-25 Chemische Forschungs Gmbh Polymerization products and their manufacturing process
GB475162A (en) * 1935-05-13 1937-11-12 Chemische Forschungs Gmbh Manufacture of emulsions and dispersions
FR883454A (en) * 1941-12-06 1943-07-13 Ig Farbenindustrie Ag Emulsion polymerization process
AT162881B (en) * 1942-06-27 1949-04-25 Lonza Ag Process for the preparation of aqueous emulsions of polyvinyl chloride
US2473929A (en) * 1946-02-18 1949-06-21 Shawinigan Resins Corp Polymerization process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069387B (en) * 1956-10-09 1959-11-19 Wacker-Chemie G.m.b.H., München Process for the preparation of vinyl chloride polymers and copolymers
DE1083054B (en) * 1957-07-26 1960-06-09 Hoechst Ag Process for the production of polymers or copolymers of vinyl chloride suitable for pastes

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