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.
[EN] GRANULAR POLYMER ADDITIVES AND THEIR PREPARATION<br/>[FR] ADDITIFS GRANULAIRES POLYMERES ET LEUR PREPARATION
申请人:ALBEMARLE CORP
公开号:WO2002068523A1
公开(公告)日:2002-09-06
A compacted particulate polymer additive composition in a dry granular form formed from a substantially uniform mixture of the following components: (a) at least one particulate sterically-hindered phenolic compound, and (b) one or more particulate polymer additives other than a sterically-hindered phenolic compound; 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.