Solid concentrate composition for polymeric chain extension

C - Chemistry – Metallurgy – 08 – L

Patent

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C08L 33/06 (2006.01) C08G 81/02 (2006.01) C08G 85/00 (2006.01) C08J 3/22 (2006.01) C08J 11/06 (2006.01) C08L 23/02 (2006.01) C08L 25/14 (2006.01) C08L 15/00 (2006.01) C08L 33/14 (2006.01)

Patent

CA 2513247

A solid concentrate composition for use in promoting chain extension within a polymer, and corresponding method, includes a chain extender and a non- reactive carrier resin or a co-reactive carrier resin. The concentrate composition prevents the premature reaction of the chain extender within a molding apparatus, increasing the dispersion of the chain extender throughout the polymer, and thereby preventing gelation and promoting homogeneous chain extension.

L'invention concerne une composition de concentré solide destinée à être utilisée pour stimuler l'allongement de chaîne dans un polymère, ainsi qu'un procédé correspondant. Cette composition comprend un allongeur de chaîne et une résine support non réactive ou une résine support co-réactive. Cette composition de concentré empêche la réaction prématurée de l'allongeur de chaîne dans un appareil de moulage, augmentant la dispersion de l'allongeur de chaîne à travers le polymère, et ainsi empêchant la gélification et stimulant un allongement de chaîne homogène.

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