C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 101/00 (2006.01) C08K 3/26 (2006.01) C08K 3/34 (2006.01) C08K 5/1575 (2006.01) C08L 23/06 (2006.01) C08L 23/12 (2006.01) C08L 25/06 (2006.01) C08L 33/06 (2006.01) C08L 83/04 (2006.01)
Patent
CA 2355824
The dispersion of additives selected from the group consisting of stabilisers, antistatic agents, nucleating agents, biocides and/or flame retardants in synthetic polymers is improved by the addition of at least one polymeric dispersing or solvating agent having amphiphilic properties. Synthetic polymers stabilised in this manner are distinguished by having excellent stability against oxidative, thermal or light-induced degradation.
Selon la présente invention, on améliore la dispersion, dans des polymères synthétiques, d'additifs pris dans le groupe composé de stabilisateurs, d'agents antistatiques, d'agents nucléants, de biocides et/ou d'ignifugeants grâce à l'adjonction d'au moins un agent polymère de dispersion ou de solvatation doté de propriétés amphiphiles. Les polymères synthétiques stabilisés selon ce procédé se caractérisent par une excellente stabilité face à la dégradation due à l'oxydation, à l'action thermique ou la lumière.
Hoffmann Kurt
Meyer Felix
Pfaendner Rudolf
Rotzinger Bruno
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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