Sabic Global Technologies B.v.

Saudi Basic Industries Corporation

Johannes Henricus Theodorus Daalmans

Maria Soliman

Gerard Jan Eduard Biemond

Carmela Tufano

Willy Joseph Dijsselbloem

Stefan Gielen

Ramon Hubertus Anna Maria Meijers

Joseph Paulus Hubertus Boyens

The present invention relates to a process for the manufacture of a long glass fibre reinforced polypropylene composition. The process comprises: a) providing at least one continuous glass multifibre strand, b) applying a sheath of a polypropylene composition around said continuous glass multifibre strand so as to form a sheathed continuous glass multifibre strand, c) cooling the sheathed continuous glass multifibre strand to a cutting temperature, d) cutting the sheathed continuous glass multifibre strand into pellets using a rotary cutting tool at a cutting temperature that satisfies the following equations I, II and III_max=&#x2212;0.625&#xd7;GF+112.5&#x2003;&#x2003;(I)T_min=10&#x2003;&#x2003;(II)T_min&#x2264;T_cut&#x2264;T_max&#x2003;&#x2003;(III)wherein: T_cut is the cutting temperature, T_max is the maximum cutting temperature [&#xb0; C.], T_min is the minimum cutting temperature [&#xb0; C.], and GF is the amount of glass fibres based on the weight of the composition [wt. %].

Process for the manufacture of glass fibre reinforced pellets

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Kerkrade, Netherlands

Johannes Henricus Theodorus Daalmans