Patent ID: 6136926
Filing Date: 2000-10-24
Classification: C08F,C08L

Abstract:
A cross-linkable propylene polymer composition comprising a mixture of:a) about 100 parts by weight of a propylene polymer;b) about 0.05 to about 10 parts by weight of an ethylenically unsaturated organosilane compound;c) 0 to about 10 parts by weight of a second ethylenically unsaturated compound;d) 0 to about 10 parts by weight of a saturated organosilane compound;e) about 0.01 to 45 parts by weight of at least one additive; andf) about 0.01 to about 5% by weight, based on said propylene polymer used, of a free radical-forming agent,wherein said cross-linkable olefinic polymer composition is produced by a process of heating said mixture in a first step to a temperature T.sub.1, which is about 30.degree. to about 110.degree. C. below the softening temperature or the crystallite melting point of said propylene polymer used and, in a second step, to a reaction temperature T.sub.2 wherein T.sub.2 is >T.sub.1 and is about 10.degree. to about 60.degree. C. below the softening temperature or the crystallite melting point of said propylene polymer used.