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Monsanto Chemicals Ltd
Monsanto Chemical Co
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Monsanto Chemicals Ltd
Monsanto Chemical Co
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Publication date
Application filed by Monsanto Chemicals Ltd, Monsanto Chemical CofiledCriticalMonsanto Chemicals Ltd
Publication of ES286554A1publicationCriticalpatent/ES286554A1/en
Process for preparing a polymerization product, characterized by heating a solution of an elastomeric 1,3-diene conjugate polymer in a polymerizable material containing a monomer from the group consisting of an aromatic monovinyl hydrocarbon, an aromatic monovinyl ar-halo hydrocarbon, and mixtures thereof, for polymerizing the polymerizable material, and for mass polymerization to be carried out, at least until the phase inversion is developed, and also for the improvement comprising (a) maintaining the agitation intensity at an insufficient level for give rise to any appreciable cleavage of the rubber phase of the reaction mixture, at least until the phase inversion has been developed, (b) after the phase inversion has been carried out, by increasing the agitation intensity to a level sufficient to give the excision of the elastomer polymer particles and maintaining the intensity of agitation at this level the evade, until the size of the rubber particles has been reduced to the desired degree, and (c) then decrease the intensity of agitation to an insufficient level to result in further cleavage of the elastomer polymer particles, and maintain the intensity of agitation at this lower level, throughout the rest of the polymerization reaction. (Machine-translation by Google Translate, not legally binding)
ES286554A1962-04-041963-03-29Procedure for preparing a polymerization product (Machine-translation by Google Translate, not legally binding)
ExpiredES286554A1
(en)
A procedure for preparing an adjustable sanding composition to fill depressions in solid articles. (Machine-translation by Google Translate, not legally binding)