RO86797B1 - Procedeu de preparare a copolimerilor clorura de vinil-acetat de vinil - Google Patents

Procedeu de preparare a copolimerilor clorura de vinil-acetat de vinil

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Publication number
RO86797B1
RO86797B1 RO110502A RO11050283A RO86797B1 RO 86797 B1 RO86797 B1 RO 86797B1 RO 110502 A RO110502 A RO 110502A RO 11050283 A RO11050283 A RO 11050283A RO 86797 B1 RO86797 B1 RO 86797B1
Authority
RO
Romania
Prior art keywords
amount
preparation
vinyl acetate
vinyl chloride
acetate copolymers
Prior art date
Application number
RO110502A
Other languages
English (en)
Other versions
RO86797A2 (ro
Inventor
Margareta Stanescu
Mihaela Rodica Creanga
Aurelia Deaconescu
Nicolae Chiroiu
Ion Rus
Georgeta Zanescu
Original Assignee
Institutul De Cercetaai Chimice - Centrul De Cercetarimase Plastice
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 Institutul De Cercetaai Chimice - Centrul De Cercetarimase Plastice filed Critical Institutul De Cercetaai Chimice - Centrul De Cercetarimase Plastice
Priority to RO110502A priority Critical patent/RO86797B1/ro
Publication of RO86797A2 publication Critical patent/RO86797A2/ro
Publication of RO86797B1 publication Critical patent/RO86797B1/ro

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  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Inventia se refera la un procedeu de preparare a copolimerilor clorura de vinil acetat de vinil, care în scopul obtinerii unor copolimeri cu solubilitate marita în solventi uzuali din industria lacurilor, copolimerizarea în flux are loc la temperatura de 40-50 degree C la care se mentine pîna cînd presiunea scade de la 8 la 4 at în prezenta de apa distilata în cantitate de 2,5:1 raportat la cantitatea de monomeri, a unui stabilizator de suspensie ales dintre metilceluloza, etilceluloza si hidroxipropilmetilceluloza în cantitate de 0,1...0,3% de preferinta 0,15% a unui initiator de polimerizare ales dintre di-(2-etilhexil)-peroxidicarbonat si de 4-tertbutil ciclohexilperoxidicarbonat, în cantitate de 0,3...1% de preferinta 0,35% si a unui modificator de catena, ales dintre tricloretilena si tetraclorura de carbon, în cantitate de 3...7%, de preferinta 5%.
RO110502A 1983-03-31 1983-03-31 Procedeu de preparare a copolimerilor clorura de vinil-acetat de vinil RO86797B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO110502A RO86797B1 (ro) 1983-03-31 1983-03-31 Procedeu de preparare a copolimerilor clorura de vinil-acetat de vinil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO110502A RO86797B1 (ro) 1983-03-31 1983-03-31 Procedeu de preparare a copolimerilor clorura de vinil-acetat de vinil

Publications (2)

Publication Number Publication Date
RO86797A2 RO86797A2 (ro) 1985-04-17
RO86797B1 true RO86797B1 (ro) 1985-05-02

Family

ID=20112862

Family Applications (1)

Application Number Title Priority Date Filing Date
RO110502A RO86797B1 (ro) 1983-03-31 1983-03-31 Procedeu de preparare a copolimerilor clorura de vinil-acetat de vinil

Country Status (1)

Country Link
RO (1) RO86797B1 (ro)

Also Published As

Publication number Publication date
RO86797A2 (ro) 1985-04-17

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