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US 2013/0199820 A1Published application
Silane crosslinkable polymer composition
AssigneeBorealis AG
InventorsKristian Dahlen, Ola Fagrell, Kjell Fossum, Thomas Hjertberg, Perry Nylander, Oscar Prieto
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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.
Claims19
A power cable which comprises a conductor surrounded by at least one layer comprising a polymer composition which comprises:
- (a) at least 35 wt % of a polyolefin bearing hydrolysable silane groups and
- (b) a silanol condensation catalyst compound of formula (I) or (II)
- MeR1nR2mZo (I),
- (ZoR2mR1nMe)-R3-(MeR1nR2mZo) (II),
- wherein in formula (I)
- Me is a transition metal of group 4 of Periodic Table of the Elements (according to IUPAC nomenclature of inorganic industry1989);
- n is an integer between 0 to 3;
- m is an integer between 0 to 4,
- o is an integer between 0 to 4, wherein n+m+o is 4, and at least m or o is other than 0;
- each R1 independently is substituted or unsubstituted saturated or partially unsaturated hydrocarbyl group which optionally contains one or more heteroatom(s), or a substituted or unsubstituted aromatic hydrocarbyl group which optionally contains one or more heteroatom(s);
- and
- each R2 independently is substituted or unsubstituted saturated or partially unsaturated hydrocarbyl group which optionally contains one or more heteroatom(s), or a substituted or unsubstituted aromatic hydrocarbyl group which optionally contains one or more heteroatom(s);
- or is a group hydrolysable to a Brönsted acid;
- provided that if o is 0, then at least one R2 is a group hydrolysable to a Brönsted acid;
- or R1 and R2, or two R1 groups or two R2 groups form together with Me a ring system;
- each Z is independently a halogen atom;
- or wherein in formula (II),
- Me and R1 have the meaning as defined in formula (I) above, and R2 has the meaning as defined in formula (I) above, but without the above proviso;
- n is an integer between 0 to 3
- in is an integer between 0 to 3
- o is an integer between 0 to 3, wherein n+m+o is 3;
- and
- R3 independently has the meaning as defined for R1 in formula (I) above or R2 in formula (I) above, but without the above proviso.
20 more elements
(canceled)
A power cable selected from
- cable (A) comprising a conductor surrounded by at least an insulating layer comprising, a polymer composition which comprises
- (a) at least 35 wt % of a polyolefin bearing hydrolysable silane groups and
- (b) a silanol condensation catalyst compound of formula (I) or (II), or
- cable (B) comprising a conductor surrounded by an inner semiconductive layer, an insulating layer and an outer semiconductive layer, wherein at least one layer, preferably at least the insulation layer, comprises, preferably consists of, the polymer composition which comprises
- (a) at least 35 wt % of a polyolefin bearing hydrolysable silane groups and
- (b) a silanol condensation catalyst compound of formula (I) or (II),
- wherein formula (I) and (II) are
- MeR1nR2mZo (I),
- (ZoR2mR1nMe)-R3-(MeR1nR2mZo) (II),
- wherein in formula (I)
- Me is a transition metal of group 4 of Periodic Table of the Elements;
- n is an integer between 0 to 3;
- m is an integer between 0 to 4,
- o is an integer between 0 to 4, wherein n+m+o is 4, and at least m or o is other than 0;
- each R1 independently is substituted or unsubstituted saturated or partially unsaturated hydrocarbyl group which optionally contains one or more heteroatom(s), or a substituted or unsubstituted aromatic hydrocarbyl group which optionally contains one or more heteroatom(s);
- and
- each R2 independently is substituted or unsubstituted saturated or partially unsaturated hydrocarbyl group which optionally contains one or more heteroatom(s), or a substituted or unsubstituted aromatic hydrocarbyl group which optionally contains one or more heteroatom(s):
- or is a group hydrolysable to a Brönsted acid;
- provided that if o is 0, then at least one R2 is a group hydrolysable to a Brönsted acid;
- or R1 and R2, or two R1 groups or two R2 groups form together with Me a ring system;
- each Z is independently a halogen atom;
- or wherein in form (II),
- Me and R1 have the meaning as defined in formula (I) above, and R2 has the meaning as defined in formula (I) above, but without the above proviso;
- n is an integer between 0 to 3
- m is an integer between 0 to 3
- o is an integer between 0 to 3, wherein n+m+o is 3;
- and
- R3 independently has the meaning as defined for R1 in formula (I) above or R2 in formula (I) above, but without the above proviso.
25 more elements
A process for producing a power cable, whereby the process comprises the step of
- applying on a conductor by (co)extrusion, one or more layers, wherein at least one layer comprises a polymer composition which comprises
- (a) at least 35 wt % of a polyolefin bearing hydrolysable silane groups and
- (b) a silanol condensation catalyst compound of formula (I) or (II),
- for producing:
- (i) a cable (A), wherein the process comprises the steps of
- applying on a conductor by (co)extrusion, at least an insulation layer comprising a polymer composition which comprises
- (a) at least 35 wt % of a polyolefin bearing hydrolysable silane groups and
- (b) a silanol condensation catalyst compound of formula (I) or (II), or
- (ii) a cable (B), wherein the process comprises the steps of
- applying on a conductor by (co)extrusion, an inner semiconductive layer comprising a first semiconductive composition, an insulation layer comprising an insulation composition and an outer semiconductive layer comprising a second semiconductive composition, in that order, wherein the composition of at least one layer, comprises, a polymer composition which comprises
- (a) at least 35 wt % of a polyolefin bearing hydrolysable silane groups and
- (b) a silanol condensation catalyst compound of formula (I) or (II)
- wherein formula (I) and (II) are
- MeR1nR2mZo (I),
- (ZoR2mR1nMe)-R3-(MeR1nR2mZo) (II),
- wherein in formula (I)
- Me is a transition metal of group 4 of Periodic Table of the Elements;
- n is an integer between 0 to 3;
- m is at integer between 0 to 4,
- o is an integer between 0 to 4, wherein n+m+o is 4, and at least m or o is other than 0;
- each R1 independently is substituted or unsubstituted saturated or partially unsaturated hydrocarbyl group which optionally contains one or more heteroatom(s), or a substituted or unsubstituted aromatic hydrocarbyl group which optionally contains one or more heteroatom(s);
- and
- each R2 independently is substituted or unsubstituted saturated or partially unsaturated hydrocarbyl group which optionally contains one or more heteroatom(s), or a substituted or unsubstituted aromatic hydrocarbyl group which optionally contains one or more heteroatom(s);
- or is a group hydrolysable to a Brönsted acid;
- provided that if o is 0, then at least one R2 is a group hydrolysable to a Brönsted acid;
- or R1 and R2, or two R1 groups or two R2 groups form together with Me a ring system;
- each Z is independently a halogen atom;
- or wherein in formula (II),
- Me and R1 have the meaning as defined in formula (I) above, and R2 has the meaning as defined in formula (I) above, but without the above proviso;
- n is an integer between 0 to 3
- m is an integer between 0 to 3
- o is an integer between 0 to 3, wherein n+m+o is 3;
- and
- R3 independently has the meaning as defined for R1 in formula (I) above or R2 in formula (I) above, but without the above proviso.
31 more elements
(canceled)
A master batch comprising
- (i) a liquid or solid carrier polyolefin which is a polyethylene or polypropylene, wherein the amount of the carrier polyolefin is 30 wt % or more, based on the total amount of the master batch;
- (ii) a silanol condensation catalyst compound of formula (I) or (II) in an amount of 0.7 to 15 wt % based on the total amount of the masterbatch, and
- (iii) optionally a further component(s) selected from further polymer component(s), additive(s), filler(s) or colorant(s), or any mixtures thereof
- wherein formula (I) and (II) are
- MeR1nR2mZo (I),
- (ZoR2mR1nMe)-R3-(MeR1nR2mZo) (II),
- wherein in formula (I)
- Me is a transition metal of group 4 of Periodic Table of the Elements;
- n is an integer between 0 to 3;
- m is an integer between 0 to 4,
- o is an integer between 0 to 4, wherein n+m+o is 4, and at least m or o is other than 0:
- each R1 independently is substituted or unsubstituted saturated or partially unsaturated hydrocarbyl group which optionally contains one or more heteroatom(s), or a substituted or unsubstituted aromatic hydrocarbyl group which optionally contains one or more heteroatom(s);
- and
- each R2 independently is substituted or unsubstituted saturated or partially unsaturated hydrocarbyl group which optionally contains one or more heteroatom(s), or a substituted or unsubstituted aromatic hydrocarbyl group which optionally contains one or more heteroatom(s);
- or is a group hydrolysable to a Brönsted acid;
- provided that if o is 0, then at least one R2 is a group hydrolysable to a Brönsted acid;
- or R1 and R2, or two R1 groups or two R2 groups form together with Me a ring system;
- each Z is independently a halogen atom;
- or wherein in formula (II),
- Me and R1 have the meaning as defined in formula (I) above, and R2 has the meaning as defined in formula (I) above, but without the above proviso;
- n is an integer between 0 to 3
- m is an integer between 0 to 3
- o is an integer between 0 to 3 wherein n+m+o is 3;
- and
- R3 independently has the meaning as defined for R1 in formula (I) above or R2 in formula (I) above, but without the above proviso.
22 more elements
Dependencies are inferred from the claim text.