Flexible, wrinkle resistant poly (phenylene ether) cable jacketing composition

Patent metadata

Field	Value
Publication number	US-2015252214-A1
Application number	US-201214424086-A
Country	US
Kind code	A1
Filing date	Nov 16, 2012
Priority date	Nov 16, 2012
Publication date	Sep 10, 2015
Grant date	—

Abstract

Disclosed is a flexible, wrinkle-resistant cable jacketing composition, comprising: cable jacketing compositions, comprising specific amounts of a poly(phenylene ether), a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, an olefin homopolymer, a polybutene, and a flame retardant. Also disclosed are processes for making such compositions, as well as articles derived therefrom.

First claim

1 . A cable jacketing composition, comprising:
(a) 20 to 40 weight percent of a poly(phenylene ether); (b) 25 to 50 weight percent of a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene; (c) 3 to 15 percent of a polyolefin homopolymer; (d) 5 to 15 weight percent of a polybutene; and (e) 10 to 47 weight percent of a flame retardant; and wherein the weight percents are based on the total weight of the composition.

2 . The cable jacketing composition of claim 1 , wherein the poly(phenylene ether) is a poly (2,6-dimethyl-1,4-phenylene ether having an intrinsic viscosity of 0.3 to 0.6 deciliter per gram measured in chloroform at 25° C.

3 . The cable jacketing composition of claim 2 , wherein the hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene comprises a polystyrene-poly(ethylene-butylene-styrene)-polystyrene (SEBS) triblock copolymer.

4 . The cable jacketing composition of claim 3 , wherein the polyolefin homopolymer is propylene homopolymer.

5 . The cable jacketing composition of claim 4 , wherein 4-8 weight percent of the polypropylene homopolymer are used based in the total weight of the composition.

6 . The cable jacketing composition of claim 5 , wherein the polybutene is a liquid polyisobutene.

7 . The cable jacketing composition of claim 6 , wherein the flame retardant is selected from the group consisting of a phosphate ester, a hydroxide salt, and a phosphinate salt, used alone or in combination with one or more other flame retardants.

8 . The jacketing composition of claim 7 , wherein the flame retardant is selected from the group consisting of BPADP, melamine polyphosphate, magnesium hydroxide, and aluminum tris(diethyl phosphinate), used alone or in combination with one or more other flame retardants.

9 . The cable jacketing composition of claim 8 , wherein the hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene comprises a polystyrene-poly(ethylene-butylene-styrene)-polystyrene (SEBS) triblock copolymer and a melt kneaded blend comprising hydrogenated block copolymer, an ethylene-propylene copolymer, and mineral oil or a linear triblock copolymer based on styrene and ethylene/butylene, SEBS.

10 . The jacketing composition of claim 8 or 9 , optionally comprising 0.1 to 5 percent of an anti-UV agent selected from the group consisting of benzotriazole-type anti-UV absorbers, triazine-type UV absorbers, cycloaliphatic UV stabilizers, and hindered amine light stabilizers.

11 . The composition of claim 1 , comprising:
(a) 20 to 35 weight percent of poly(2,6-dimethyl-1,4-phenylene ether having an intrinsic viscosity of 0.4 to 0.5 deciliter per gram measured in chloroform at 25° C. (b) 25 to 45 weight percent of a polystyrene-poly(ethylene-butylene-styrene)-polystyrene (SEBS) triblock copolymer and a melt kneaded blend comprising hydrogenated block copolymer, an ethylene-propylene copolymer, and mineral oil; (c) 3 to 10 percent of a polyolefin homopolymer; (d) 5 to 10 weight percent of a polyisobutene; and (e) 10 to 30 weight percent of a flame retardant.

12 . The composition of claim 11 , comprising:
(a) 20 to 35 weight percent of poly(2,6-dimethyl-1,4-phenylene ether having an intrinsic viscosity of 0.4 to 0.5 deciliter per gram measured in chloroform at 25° C. (b) 25 to 45 weight percent of a polystyrene-poly(ethylene-butylene-styrene)-polystyrene (SEBS) triblock copolymer and a melt kneaded blend comprising hydrogenated block copolymer, an ethylene-propylene copolymer, and mineral oil; (c) 3 to 10 percent of propylene homopolymer; (d) 5 to 10 weight percent of a polyisobutene; and (e) 10 to 30 weight percent of a flame retardant comprising, BPADP alone or in combination with one or both of MPP and aluminum tris(diethyl phosphinate).

13 . The composition of claim 12 , comprising:
(a) 20 to 35 weight percent of poly(2,6-dimethyl-1,4-phenylene ether having an intrinsic viscosity of 0.4 to 0.5 deciliter per gram measured in chloroform at 25° C. (b) 25 to 45 weight percent of a hydrogenated block copolymer, comprising:
(b1) 20 to 28 weight percent of a polystyrene-poly(ethylene-butylene-styrene)-polystyrene (SEBS) triblock copolymer;
(b2) 10 to 18 weight percent of a melt kneaded blend comprising hydrogenated block copolymer, an ethylene-propylene copolymer, and mineral oil; or
(b3) 8 to 16 weight percent of a linear triblock copolymer based on styrene and ethylene/butylene, SEBS, with bound styrene of 30% mass, (such as Kraton G1652);
(c) 4 to 8 percent of propylene homopolymer; (d) 5 to 10 weight percent of a polyisobutene; and (e) 10 to 30 weight percent of a flame retardant comprising,
(e1) 8 to 12 weight percent of BPADP
(e2) 3 to 7 weight percent MPP; and
(e3) 3 to 7 weight percent aluminum tris(diethyl phosphinate).

14 . The composition of claim 12 , comprising:
(a) 20 to 35 weight percent of poly(2,6-dimethyl-1,4-phenylene ether having an intrinsic viscosity of 0.4 to 0.5 deciliter per gram measured in chloroform at 25° C. (b) 25 to 45 weight percent of a hydrogenated block copolymer, comprising:
(b1) 20 to 28 weight percent of a polystyrene-poly(ethylene-butylene-styrene)-polystyrene (SEBS) triblock copolymer;
(b2) 10 to 18 weight percent of a melt kneaded blend comprising hydrogenated block copolymer, an ethylene-propylene copolymer, and mineral oil; or
(b3) 6 to 16 weight percent of a linear triblock copolymer based on styrene and ethylene/butylene, SEBS, with bound styrene of 30% mass, (such as Kraton G1652);
(c) 4 to 8 percent of propylene homopolymer; (d) 5 to 10 weight percent of a polyisobutene; and (e) 15 to 25 weight percent of a flame retardant comprising,
(e1) 9 to 11 weight percent of BPADP
(e2) 4 to 6 weight percent MPP; and
(e3) 4 to 6 weight percent aluminum tris(diethyl phosphinate).

15 . The composition of claim 11 , comprising:
(a) 20 to 35 weight percent of poly(2,6-dimethyl-1,4-phenylene ether having an intrinsic viscosity of 0.4 to 0.5 deciliter per gram measured in chloroform at 25° C. (b) 25 to 45 weight percent of a polystyrene-poly(ethylene-butylene-styrene)-polystyrene (SEBS) triblock copolymer and a melt kneaded blend comprising hydrogenated block copolymer, an ethylene-propylene copolymer, and mineral oil; (c) 4 to 8 percent of propylene homopolymer; (d) 5 to 10 weight percent of a polyisobutene; and (e) 10 to 30 weight percent of a flame retardant comprising, BPADP alone or in combination with one or both of MPP and Mg(OH) 2 .

16 . The composition of claim 15 , comprising:
(a) 20 to 25 weight percent of poly(2,6-dimethyl-1,4-phenylene ether having an intrinsic viscosity of 0.4 to 0.5 deciliter per gram measured in chloroform at 25° C. (b) 25 to 45 weight percent of a hydrogenated block copolymer, comprising:
(b1) 20 to 28 weight percent of a polystyrene-poly(ethylene-butylene-styrene)-polystyrene (SEBS) triblock copolymer;
(b2) 10 to 18 weight percent of a melt kneaded blend comprising hydrogenated block copolymer, an ethylene-propylene copolymer, and mineral oil; or
(b3) 6 to 16 weight percent of a linear triblock copolymer based on styrene and ethylene/butylene, SEBS, with bound styrene of 30% mass, (such as Kraton G1652);
(c) 4 to 8 percent of propylene homopolymer; (d) 5 to 10 weight percent of a polyisobutene; and (e) 10 to 30 weight percent of a flame retardant comprising,
(e1) 8 to 12 weight percent of BPADP
(e2) 2.5 to 7.5 weight percent MPP; and
(e3) 2.5 to 5 weight percent Mg(OH) 2 .

17 . The composition of claim 16 , c

Assignees

• Sabic Global Technologies Bv

Inventors

• Shan Wei

Classifications

• C08L23/12 Primary

  Polypropene · CPC title

• C08K2003/2224

  Magnesium hydroxide · CPC title

• C08K5/5313

  Phosphinic compounds, e.g. R2=P(:O)OR' · CPC title

• C08L53/00

  Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers · CPC title

• C09D153/00 Primary

  Coating compositions based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers · CPC title