Flame retardant resin composition and metal cable, optical fiber cable, and molded article using the same

• US 10,640,634 B2
• Filed: 12/05/2016
• Issued: 05/05/2020
• Est. Priority Date: 12/14/2015
• Status: Active Grant

• Current Assignee: Fujikura Limited
• Original Assignee: Fujikura Limited
• Inventors: Kohri, Haruka, Nakamura, Shoichiro, Watanabe, Tomohisa
• Primary Examiner(s): Kopec, Mark
• Assistant Examiner(s): Thomas, Jaison P
• Application Number:
  US16/062,044
• Publication Number:
  US 20180371220A1
• Time in Patent Office: 1,247 Days
• CPC Class Codes: C08K 2003/2227 of aluminium
• CPC Class Codes: C08K 3/22 of metals
• CPC Class Codes: C08K 5/09 Carboxylic acids; Metal salts thereof; Anhydrides thereof
• CPC Class Codes: C08K 5/098 Metal salts of carboxylic acids
• CPC Class Codes: C08K 5/3492 Triazines
• CPC Class Codes: C08K 5/34926 also containing heterocyclic groups other than triazine groups
• CPC Class Codes: C08L 2201/02 Flame or fire retardant/resistant
• CPC Class Codes: C08L 2203/202 use in electrical wires or wirecoating
• CPC Class Codes: C08L 23/00 Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 23/06 Polyethene
• CPC Class Codes: C08L 23/0853 Vinylacetate
• CPC Class Codes: C08L 23/12 Polypropene
• CPC Class Codes: C08L 23/26 modified by chemical after-treatment
• CPC Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: G02B 6/44 Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables cables incorporating electric conductors and optical fibres where features relating to the optical fibres are not of interest H01B11/22
• CPC Class Codes: H01B 3/44 vinyl resins; acrylic resins silicones H01B3/46
• CPC Class Codes: H01B 7/02 Disposition of insulation
• CPC Class Codes: H01B 7/295 using material resistant to flame

Abstract

A flame retardant resin composition containing a polyolefin resin, a silicone compound, a fatty acid containing compound, aluminum hydroxide, and a triazine ring containing hindered amine compound. With respect to 100 parts by mass of the polyolefin resin, the silicone compound is blended in an amount of the range 0.5 to 10 parts by mass, the fatty acid containing compound is blended in an amount of the range 0.5 to 20 parts by mass, the aluminum hydroxide is blended in an amount of the range 1 to 60 parts by mass, and the triazine ring containing hindered amine compound is blended in an amount of the range 0.05 to 8 parts by mass or less. The triazine ring containing hindered amine compound may include an oxygen atom.

Claims

1. A flame retardant resin composition comprising:

a polyolefin resin;

a silicone compound;

a fatty acid containing compound;

aluminum hydroxide; and

a triazine ring containing hindered amine compound,

wherein the triazine ring containing hindered amine compound comprises a group represented by the following formula (1);

2. The flame retardant resin composition of claim 1,

wherein the triazine ring containing hindered amine compound is blended in an amount of 3 parts by mass or less, relative to 100 parts by mass of the polyolefin resin.

3. The flame retardant resin composition of claim 1,

wherein the aluminum hydroxide is blended in an amount of less than 50 parts by mass, relative to 100 parts by mass of the polyolefin resin.

4. The flame retardant resin composition of claim 3,

wherein the aluminum hydroxide is blended in an amount of less than 40 parts by mass, relative to 100 parts by mass of the polyolefin resin.

5. The flame retardant resin composition of claim 1,

wherein the fatty acid containing compound is blended in an amount of the range 0.5 to 10 parts by mass relative to 100 parts by mass of the polyolefin resin, and

the aluminum hydroxide is blended in an amount of the range 1 to 5 parts by mass, relative to 100 parts by mass of the polyolefin resin.

6. The flame retardant resin composition of claim 1,

wherein the polyolefin resin is composed of at least one kind selected from the group consisting of polyethylene, acid-modified polyethylene, an ethylene-vinyl acetate copolymer, an ethylene-ethyl acrylate copolymer, and polypropylene.

7. The flame retardant resin composition of claim 1,

wherein the fatty acid containing compound is magnesium stearate or calcium stearate.

8. The flame retardant resin composition of claim 1, wherein the composition has a specific gravity of 1 or less.

9. The flame retardant resin composition of claim 1, wherein the triazine ring containing hindered amine further comprises a group represented by the following formula (3):

10. A metal cable comprising:

a metal conductor; and

an insulating body covering the metal conductor,

wherein the insulating body is composed of the flame retardant resin composition of claim 1.

11. An optical fiber cable comprising:

an optical fiber; and

an insulating body covering the optical fiber,

wherein the insulating body is composed of the flame retardant resin composition of claim 1.

12. A molded article comprising the flame retardant resin composition of claim 1.