Cross-linking compositions
AssigneesAkzo Nobel N. V., Kayaku Akzo Corporation
InventorsJernej Jelenic, Gerrit Frits Drost, Frans Johannes Van Moorsel, Akio Ishiwatari, Akihiko Tkai
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Abstract
This application relates to compositions of cross-linking peroxides which have excellent storage stability, without exudation of peroxide taking place, which contain the organic peroxide in a high concentration, and which are easily blendable with a rubber to be cross-linked. The compositions are obtained by mixing a softening agent with a Brookfield viscosity of 10,000 poises or less at 60 ° C. with an organic peroxide, preferably in the presence of a filler, and optionally with further ingredients.
Claims32
A soft granulate which can be used for cross-linking thermoplastic resins and elastomers comprising a) 20 to 80 wt. %, based on the weight of the total granulate, of at least one organic peroxide, b) an effective amount of one or more softening agents, for improving the blending of the peroxide in a resin and/or elastomer, which softening agent or agents is or are selected from the group consisting of low-molecular weight polymers, waxes and mixtures thereof with said softening agent having a Brookfield viscosity of 10,000 poised or less at 60° C., c) at least one filler, which soft granulate does not comprise hydroquinone derivatives, and which soft granulate is essentially free of trans-polyoctenamer rubber.
Dependencies are inferred from the claim text.