Processing

Please wait...

Settings

Settings

Goto Application

1. WO1981001851 - EMULSION POLYMERIZATION PROCESS FOR PRODUCING VINYL DISPERSION RESINS

Publication Number WO/1981/001851
Publication Date 09.07.1981
International Application No. PCT/US1980/001541
International Filing Date 17.11.1980
IPC
C08F 14/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
14Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
CPC
C08F 14/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
14Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
Y10T 428/2982
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
2982Particulate matter [e.g., sphere, flake, etc.]
Applicants
Inventors
Priority Data
10569320.12.1979US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) EMULSION POLYMERIZATION PROCESS FOR PRODUCING VINYL DISPERSION RESINS
(FR) PROCEDE DE POLYMERISATION EN EMULSION POUR LA PRODUCTION DE RESINES DE DISPERSION VINYLIQUES
Abstract
(EN)
New and novel process of producing a vinyl resin latex by the emulsion polymerization technique comprising adding to the latex with thorough mixing, an aqueous solution of an electrolyte, such as, for example, ammonium carbonate, and removing a part of the water by filtration or centrifuging, and the like, to produce friable aggregates of individual spheres of polymer particles. Thereafter, the friable aggregates of polymer particles are separated into individual spheres of polymer particles by simple light rubbing or crushing and dried. In many cases, the separation can be accomplished by simple mixing of the resin with plasticizer during the plastisol preparation. Thus the spray drying and the subsequent grinding steps are eliminated producing a superior product for plastisols.
(FR)
Nouveau procede original de production d'une resine vinylique latex selon la technique de polymerisation en emulsion, consistant a ajouter au latex, par melange intime, une solution aqueuse d'un electrolyte, tel que, par exemple, un carbonate d'ammonium, et a enlever une partie de l'eau par filtration ou centrifugation, de maniere a produire des aggregats friables de spheres individuelles de particules de polymere. Les aggregats friables de particules de polymere sont divises ensuite en spheres individuelles de particules de polymere par simple frottement ou leger concassage, et finalement seches. Dans la plupart des cas, la separation peut etre obtenue par simple melange de la resine avec un plastifiant pendant la preparation du plastisol. Le sechage par pulverisation et les etapes consecutives de broyage sont ainsi eliminees permettant la production d'un produit superieur pour le plastisol.
Latest bibliographic data on file with the International Bureau