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Machine translation
1. (WO1981000572) SUSPENSION POLYMERIZATION PROCESS FOR MAKING VINYL RESINS FOR USE IN PLASTISOL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000572    International Application No.:    PCT/US1980/000920
Publication Date: 05.03.1981 International Filing Date: 17.07.1980
IPC:
C08F 14/06 (2006.01)
Applicants:
Inventors:
Priority Data:
68984 23.08.1979 US
Title (EN) SUSPENSION POLYMERIZATION PROCESS FOR MAKING VINYL RESINS FOR USE IN PLASTISOL
(FR) PROCEDE DE POLYMERISATION EN SUSPENSION POUR LA FABRICATION DE RESINES VINYLIQUES A UTILISER DANS UN PLASTISOL
Abstract: front page image
(EN)This invention relates to making dense, spherical particles of vinyl plastisol resins by means of a suspension polymerization procedure. The dense, spherical particles or beads have a diameter of about 10 to about 100 microns and are made in an aqueous medium containing a free-radical yielding polymerization catalyst and in the presence of polyvinyl alcohol, as a suspending agent, and a surfactant having a hydrophile-lipophile balance (HLB) less than about 3.5. The suspension vinyl resins so produced are easily and uniformly mixed with a plasticizer to form low viscosity plastisols which are stable, containing particles of uniform and proper size and capable of producing films, and like products, of good clarity.
(FR)Fabrication de particules denses et spheriques de resines vinyliques de plastisol grace a un procede de polymerisation en suspension. Les particules ou perles denses et spheriques ont un diametre d"environ 10 a 100 microns et sont produites dans un milieu aqueux contenant un catalyseur de polymerisation produisant des radicaux libres et en presence d"un alcool polyvinylique comme agent de suspension, et un agent tensioactif ayant un rapport hydrophile-lipophile (HLB) inferieur a 3, 5 environ. Les resines vinyliques en suspension ainsi produites sont facilement et uniformement melangees avec un plastifiant pour former des plastisols de faible viscosite qui sont stables, contiennent des particules de taille convenable et uniforme et peuvent produire des films, ou produits similaires, d"une bonne clarte.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)