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ES357873A1 - Procedure for the continuous obtaining of poly- (vinyl alcohol). (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the continuous obtaining of poly- (vinyl alcohol). (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES357873A1
ES357873A1 ES357873A ES357873A ES357873A1 ES 357873 A1 ES357873 A1 ES 357873A1 ES 357873 A ES357873 A ES 357873A ES 357873 A ES357873 A ES 357873A ES 357873 A1 ES357873 A1 ES 357873A1
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
google translate
poly
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
ES357873A
Other languages
Spanish (es)
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of ES357873A1 publication Critical patent/ES357873A1/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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/12—Hydrolysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Process for the continuous production of polyvinyl alcohol with a content of preferably up to 30% by weight of residual acetyl groups, by continuous application of a homogeneous mixture of a solution of polyvinyl acetate in methanol with a methanolic catalyst solution containing methylate ions on a rotating endless belt, characterized in that the conveyor belt, on the surface which is brought into contact with the reaction mixture, is provided with a polyolefin layer. (Machine-translation by Google Translate, not legally binding)
ES357873A 1967-09-09 1968-09-05 Procedure for the continuous obtaining of poly- (vinyl alcohol). (Machine-translation by Google Translate, not legally binding) Expired ES357873A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1967F0053464 DE1720709B2 (en) 1967-09-09 1967-09-09 PROCESS FOR THE CONTINUOUS MANUFACTURING OF POLYVINYL ALCOHOL

Publications (1)

Publication Number Publication Date
ES357873A1 true ES357873A1 (en) 1970-04-01

Family

ID=7106337

Family Applications (1)

Application Number Title Priority Date Filing Date
ES357873A Expired ES357873A1 (en) 1967-09-09 1968-09-05 Procedure for the continuous obtaining of poly- (vinyl alcohol). (Machine-translation by Google Translate, not legally binding)

Country Status (3)

Country Link
AT (1) AT282946B (en)
DE (1) DE1720709B2 (en)
ES (1) ES357873A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2964688D1 (en) * 1978-03-23 1983-03-17 Hoechst Ag Polyvinyl alcohol pellets containing a plasticizer, and method for their preparation

Also Published As

Publication number Publication date
AT282946B (en) 1970-07-10
DE1720709A1 (en) 1971-07-08
DE1720709B2 (en) 1976-09-09

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