Abstract: The present invention relates to a polyolefin composition comprising (A) a crosslinkable polyolefin with hydrolysable silane groups which upon hydrolysation form an acid or a base, characterised in that the acid or base generates a gel content of at least 40% after 40 hours in the 90° C. cross-linking test, wherein the acid or base is added in an amount of 4.5 mmol/kg to an ethylene/vinyltrimethoxysilane copolymer with a MFR2=2 g/10 min, a density of 923 g/cm3, and 2 wt. % of vinyltrimethoxysilane and then is cross-linked in a waterbath at 90° C., and to a polyolefin composition comprising (i) a crosslinkable polyolefin with hydrolysable silane groups, and (ii) a non-polymeric compound with hydrolysable silane groups which upon hydrolysation form an acid or a base, characterised in that the acid or base generates a gel content of at least 40% after 40 hours in the 90° C. cross-linking test, wherein the acid or base is added in an amount of 4.

Abstract: The present invention relates to a polyolefin composition comprising a cross-linkable polyolefin with (A) hydrolysable silane groups which upon hydrolysation form an acid or a base, (B) hydrolysable silane groups different from silane groups (A).

Abstract: The invention is directed to a silane crosslinkable polymer composition which comprises a polyolefin (a) bearing hydrolysable silane group(s) containing units. The polymer composition is suitable for producing crosslinkable articles, preferably one or more layers of a cable. The formed article, preferably a cable, is preferably crosslinked before the end use thereof.

Abstract: The invention is directed to a silane crosslinkable polymer composition which comprises a polyolefin (a) bearing hydrolysable silane group(s) containing units. The polymer composition is suitable for producing crosslinkable articles, preferably one or more layers of a cable. The formed article, preferably a cable, is preferably crosslinked before the enduse thereof.

Abstract: The invention relates to a crosslinkable polymer composition comprising (a) a polyolefin bearing hydrolysable silane groups and a silanol condensation catalyst compound, as well as to an article, preferably a cable, thereof. Also the use of the silanol condensation catalyst compound for crosslinking an article, preferably a layer of a cable is provided.

Abstract: The present invention relates to a polyolefin composition comprising (A) a crosslinkable polyolefin with hydrolysable silane groups which upon hydrolysation form an acid or a base, characterised in that the acid or base generates a gel content of at least 40% after 40 hours in the 90° C. cross-linking test, wherein the acid or base is added in an amount of 4.5 mmol/kg to an ethylene/vinyltrimethoxysilane copolymer with a MFR2=2 g/10 min, a density of 923 g/cm3, and 2 wt. % of vinyltrimethoxysilane and then is cross-linked in a waterbath at 90° C., and to a polyolefin composition comprising (i) a crosslinkable polyolefin with hydrolysable silane groups, and (ii) a non-polymeric compound with hydrolysable silane groups which upon hydrolysation form an acid or a base, characterised in that the acid or base generates a gel content of at least 40% after 40 hours in the 90° C. cross-linking test, wherein the acid or base is added in an amount of 4.

Abstract: The present invention relates to a polyolefin composition comprising a cross-linkable polyolefin with (A) hydrolysable silane groups which upon hydrolysation form an acid or a base, (B) hydrolysable silane groups different from silane groups (A).