Flame retardant polymer compositions

3:

• The flame retardant polymer composition according to claim 1, wherein component (A) further comprises units with hydrolysable silane groups, wherein the units with hydrolysable silane groups are represented by formula (I);
• R1SiR2qY3-q (I)
• wherein
• R1 is an ethylenically unsaturated hydrocarbyl, hydrocarbyloxy or (meth)acryloxy hydrocarbyl group,
• each R2 is independently an aliphatic saturated hydrocarbyl group,
• Y which may be the same or different, is a hydrolysable organic group and
• q is 0, 1 or 2, wherein the amount of units with hydrolysable silane groups is in the range of from 0.2 to 4.0 wt %, based on the total weight of component (A).

9:

• The flame retardant polymer composition according to claim 1, comprising,
• 3.0 to 14.0 wt % of component (A);
• 0.5 to 3.5 wt % of component (B);
• 0.3 to 2.8 wt % of component (C);
• 42.5 to 53.5 wt % of component (D);
• 3.0 to 14.0 wt % of component (E);
• 20.0 to 32.5 wt % of component (F);
• 0 to 7.5 wt % of a carbon black masterbatch comprising 30 to 50 wt % carbon black (G) in a polyethylene based matrix, based on the total weight amount of the carbon black masterbatch;
• and
• 0.05 to 2.5 wt % of additives selected from the group consisting of slip agents, UV-stabiliser, antioxidants, additive carriers, nucleating agents, mica, scorch retarder and mixtures thereof,
• wherein all weight percentages are based on the total weight of the flame retardant polymer composition.

10:

• The flame retardant polymer composition according to claim 1, having one or more of the following properties:
• a tensile strength of from 12.5 MPa to 25.0 MPa determined according to ISO 527-1 and ISO 527-2;
• a tensile strength of from 12.5 MPa to 25.0 MPa determined after conditioning of the test specimens for 240 h at 110° C. according to ISO 527-1 and ISO 527-2
• a change of tensile strength, as the ratio of the tensile strength before conditioning to the tensile strength after conditioning of from −5.0% to +5.0%;
• an elongation at break of from 350% to 550%, determined according to ISO 527-1 and ISO 527-2;
• an elongation at break of from 300% to 500% determined after conditioning of the test specimens for 240 h at 110° C. according to ISO 527-1 and ISO 527-2;
• a change of elongation at break, as the ratio of the elongation at break before conditioning to the elongation at break after conditioning of from 0% to 20.0%;
• a tear strength at 23° C. of from 8.5 to 25.0 N/mm determined according to BS 6469 section 99.1:1992, HD 605 S2:2008 Clause 2.2.2.2 Method 2 at a temperature of 23° C.;
• and/or
• a tear strength at 50° C. of from 8.5 to 20.0 N/mm determined according to BS 6469 section 99.1:1992, HD 605 S2:2008 Clause 2.2.2.2 Method 2 at a temperature of 50° C.

11:

• The flame retardant polymer composition according to claim 1, having one or more of the following properties:
• a peak heat release rate (pHRR) of from 75 to 250 kW/m2 determined in a cone calorimeter test according to ISO 5660-1;
• and/or
• a total smoke production (TSP) from 0.3 to 7.5 m2 determined in a cone calorimeter test according to ISO 5660-1.