HUT34526A - Process for the production of wet polymer dispersion
- Google Patents
Process for the production of wet polymer dispersion
Info
Publication number
HUT34526A
HUT34526AHU27583AHU27583AHUT34526AHU T34526 AHUT34526 AHU T34526AHU 27583 AHU27583 AHU 27583AHU 27583 AHU27583 AHU 27583AHU T34526 AHUT34526 AHU T34526A
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 Muanyagipari Kutato Intezet, Tiszai VegyikombinatfiledCriticalMuanyagipari Kutato Intezet
Priority to HU27583ApriorityCriticalpatent/HU194291B/en
Publication of HUT34526ApublicationCriticalpatent/HUT34526A/en
Publication of HU194291BpublicationCriticalpatent/HU194291B/en
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications
(AREA)
Polymerisation Methods In General
(AREA)
Abstract
The dispersions are prepd. by polymerising vinyl-acetate monomer or a mixt. of vinyl-acetate and its comonomers in an aq. medium with persulphate or peroxide initiators in the presence of PVA or hydroxy-ethyl-cellulose as protective colloid, an anionic surfactant and a buffer. At the end of the polymerisation the reaction mixt. is cooled to 50-70 deg.C 3-8 wt% dialdehyde based on the amt. of protective colloid present is added and the reactor is cooled to below 40 deg.C.
HU27583A1983-01-281983-01-28Process for producing aquous polyvinyl-acetate dispersions
HU194291B
(en)
Process for the preparation of aqueous ethylene copolymer dispersions with high viscosities which consists essentially of polymerizing in the presence of polyvinyl alcohol and mixing with certain polyalkylene glycols