C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/51 (2006.01) B01J 2/28 (2006.01) B29B 9/00 (2006.01) C08K 5/524 (2006.01) C08K 9/00 (2006.01)
Patent
CA 2438894
A compacted particulate polymer additive composition in a dry granular form formed from the following components: (a) at least one particulate organic phosphite, organic phosphonite, and/or organic phosphonate, and (b) one or more particulate polymer additives other than an organic phosphite, organic phosphonite, or organic phosphonate; wherein the particles of said composition are held together in compacted dry granular form exclusively or substantially exclusively by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (a), and optionally by contact with dried surfaces of in situ desolvated particles from particles of one or more at least partially solvated components of (b). Compositions of this type except that there is no component (b) are also described.
Cette invention concerne une composition polymère granulaire compactée sous forme granulaire sèche obtenue à partir des composants suivants: (a) au moins un phosphite organique, un phosphonite organique et/ou un phosphonate organique particulaires, et (b) un ou plusieurs additifs polymères particulaires autres qu'un phosphite organique, un phosphonite organique ou un phosphonate organique. Les particules de ladite composition sont maintenues ensemble sous une forme granulaire sèche compactée exclusivement ou pratiquement exclusivement par contact avec les surfaces sèches de particules désolvatées in situ d'un ou de plusieurs composants au moins partiellement solvatés de (a), et, éventuellement, par contact avec les surfaces sèches de particules désolvatées in situ d'un ou de plusieurs composants au moins partiellement solvatés de (b). Sont également décrites des compositions de ce type à la différence près qu'elles ne renferment pas de composant (b).
Albemarle Corporation
Macrae & Co.
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