RO84877B1 - Process for obtaining adhesives based on aqueous dispersions of vinylmaleic copolymers - Google Patents

Process for obtaining adhesives based on aqueous dispersions of vinylmaleic copolymers

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Publication number
RO84877B1
RO84877B1 RO108076A RO10807682A RO84877B1 RO 84877 B1 RO84877 B1 RO 84877B1 RO 108076 A RO108076 A RO 108076A RO 10807682 A RO10807682 A RO 10807682A RO 84877 B1 RO84877 B1 RO 84877B1
Authority
RO
Romania
Prior art keywords
aqueous dispersions
adhesives based
vinylmaleic
copolymers
degree
Prior art date
Application number
RO108076A
Other languages
Romanian (ro)
Other versions
RO84877A2 (en
Inventor
Augustin Chifor
Johannes Brandsch
Stela Lungoci
Aurel Coneschi
Original Assignee
Augustin Chifor
Johannes Brandsch
Stela Lungoci
Aurel Coneschi
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 Augustin Chifor, Johannes Brandsch, Stela Lungoci, Aurel Coneschi filed Critical Augustin Chifor
Priority to RO108076A priority Critical patent/RO84877B1/en
Publication of RO84877A2 publication Critical patent/RO84877A2/en
Publication of RO84877B1 publication Critical patent/RO84877B1/en

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  • Adhesives Or Adhesive Processes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Procedeul de obtinere a unor adezivi pe baza de dispersii apoase de copolimeri vinil-maleici, conform inventiei, consta în aceea ca se supune copolimerizarii în emulsie un amestec binar de 60...80% acetat de vinil cu 20...40% maleat de diizobutil, în prezenta a 8...10% sistem de stabilizare, format din 89....90% alcool polivinilic cu grad de polimerizare 1200....1400, grad de hidroliza 89% si 10....12% nonilfenol etoxilat cu grad de etoxilare 8....10 mol oxid de etilena, reactia avînd loc la temperatura de 75...90 degree C, dispersia astfel obtinuta se amesteca cu barita, în raport de 5:1, se omogenizeaza, rezultînd adezivul cu vîscozitate de 5...15000 cP.The process for obtaining adhesives based on aqueous dispersions of vinyl maleic copolymers according to the invention consists in subjecting to the copolymerization in the emulsion a binary mixture of 60 ... 80% of vinyl acetate with 20 ... 40% of maleate of diisobutyl in the presence of 8 ... 10% stabilizing system consisting of 89 ... 90% polyvinyl alcohol with a degree of polymerization of 1200 ... 1400, a degree of hydrolysis of 89% and 10 ... 12 ethoxylated nonylphenol ethoxylate with 8 ... 10 moles of ethylene oxide, the reaction having a temperature of 75 DEG to 90 DEG C., the dispersion thus obtained being mixed with the barite in a ratio of 5: 1 is homogenized, resulting in the adhesive having a viscosity of 5 to 15,000 cP.

RO108076A 1982-07-06 1982-07-06 Process for obtaining adhesives based on aqueous dispersions of vinylmaleic copolymers RO84877B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO108076A RO84877B1 (en) 1982-07-06 1982-07-06 Process for obtaining adhesives based on aqueous dispersions of vinylmaleic copolymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO108076A RO84877B1 (en) 1982-07-06 1982-07-06 Process for obtaining adhesives based on aqueous dispersions of vinylmaleic copolymers

Publications (2)

Publication Number Publication Date
RO84877A2 RO84877A2 (en) 1984-08-17
RO84877B1 true RO84877B1 (en) 1984-09-30

Family

ID=20111794

Family Applications (1)

Application Number Title Priority Date Filing Date
RO108076A RO84877B1 (en) 1982-07-06 1982-07-06 Process for obtaining adhesives based on aqueous dispersions of vinylmaleic copolymers

Country Status (1)

Country Link
RO (1) RO84877B1 (en)

Also Published As

Publication number Publication date
RO84877A2 (en) 1984-08-17

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