FLAME RETARDANT RESIN COMPOSITION AND CABLE USING THE SAME

• US 20170051208A1
• Filed: 04/22/2015
• Published: 02/23/2017
• Est. Priority Date: 05/23/2014
• Status: Active Grant

• Current Assignee: Fujikura Limited
• Original Assignee: Fujikura Limited
• Inventors: IWATA, Masayuki, WATANABE, Tomohisa
• Granted Patent: US 10,106,743 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C08K 3/26 Carbonates; Bicarbonates
• CPC Class Codes: C08K 3/34 Silicon-containing compounds
• CPC Class Codes: C08K 5/098 Metal salts of carboxylic acids
• CPC Class Codes: C08K 5/3435 Piperidines
• CPC Class Codes: C08L 2201/02 Flame or fire retardant/resistant
• CPC Class Codes: C08L 2201/08 Stabilised against heat, light or radiation or oxydation
• CPC Class Codes: C08L 2203/202 use in electrical wires or wirecoating
• CPC Class Codes: C08L 23/02 not modified by chemical after-treatment
• CPC Class Codes: C08L 23/06 Polyethene
• CPC Class Codes: C08L 23/0815 Copolymers of ethene with aliphatic 1-olefins
• CPC Class Codes: C08L 23/0869 Acids or derivatives thereof
• CPC Class Codes: C08L 53/00 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 Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: C09K 21/02 Inorganic materials
• CPC Class Codes: G02B 6/4436 Heat resistant
• CPC Class Codes: H01B 3/44 vinyl resins; acrylic resins silicones H01B3/46
• CPC Class Codes: H01B 3/441 from alkenes
• CPC Class Codes: H01B 3/46 silicones
• CPC Class Codes: H01B 7/295 using material resistant to flame

Abstract

Disclosed is a flame retardant resin composition containing a base resin containing a polyolefin based compound, a silicone based compound, a fatty acid metal salt, a flame retardant agent consisting of at least one kind selected from the group consisting of calcium carbonate particles and silicate compound particles, a hindered phenol based compound, and a hindered amine based compound. In the composition, the silicone based compound is blended at a ratio of 0.1 part by mass or more and 10 parts by mass or less relative to 100 parts by mass of the base resin, the fatty acid metal salt is blended at a ratio of 0.1 part by mass or more and 20 parts by mass or less relative to 100 parts by mass of the base resin, the flame retardant agent is blended at a ratio of 5 parts by mass or more and 200 parts by mass or less relative to 100 parts by mass of the base resin, the hindered phenol based compound is blended at a ratio of 0.05 part by mass or more and 10 parts by mass or less relative to 100 parts by mass of the base resin, and the hindered amine based compound is blended at a ratio of 0.05 part by mass or more and 10 parts by mass or less relative to 100 parts by mass of the base resin. The hindered amine based compound has a monovalent group represented by the following formula (1) or the like.

(in the formula (1), R¹ represents an alkyl group or alkoxy group having 1 to 30 carbon atoms, and R² to R⁵ each independently represent an alkyl group having 1 to 6 carbon atoms).

Claims

1. A flame retardant resin composition comprising:

a base resin containing a polyolefin based compound;

a silicone based compound;

a fatty acid metal salt;

a flame retardant agent containing at least one kind selected from the group consisting of calcium carbonate particles and silicate compound particles;

a hindered phenol based compound; and

a hindered amine based compound,

wherein the silicone based compound is blended at a ratio of 0.1 part by mass or more and 10 parts by mass or less relative to 100 parts by mass of the base resin,

the fatty acid metal salt is blended at a ratio of 0.1 part by mass or more and 20 parts by mass or less relative to 100 parts by mass of the base resin,

the flame retardant agent is blended at a ratio of 5 parts by mass or more and 200 parts by mass or less relative to 100 parts by mass of the base resin,

the hindered phenol based compound is blended at a ratio of 0.05 part by mass or more and 10 parts by mass or less relative to 100 parts by mass of the base resin,

the hindered amine based compound is blended at a ratio of 0.05 part by mass or more and 10 parts by mass or less relative to 100 parts by mass of the base resin, and

the hindered amine based compound has a monovalent group represented by the following formula (1) or a divalent group represented by the following formula (2);

2. The flame retardant resin composition according to claim 1, wherein the flame retardant agent is composed of calcium carbonate particles.

3. The flame retardant resin composition according to claim 1, wherein the flame retardant agent is composed of silicate compound particles.

4. The flame retardant resin composition according to claim 1, wherein the hindered amine based compound has a monovalent group represented by the formula (1).

5. The flame retardant resin composition according to claim 1, wherein the hindered amine based compound has a divalent group represented by the formula (2).

6. The flame retardant resin composition according to claim 1,

wherein the silicone based compound is blended at a ratio of more than 0.2 part by mass relative to 100 parts by mass of the base resin,

the fatty acid metal salt is blended at a ratio of more than 3 parts by mass relative to 100 parts by mass of the base resin,

the hindered amine based compound is blended at a ratio of 0.05 part by mass or more and less than 1 part by mass relative to 100 parts by mass of the base resin, and

the hindered amine based compound has a molecular weight of 1000 or more.

7. The flame retardant resin composition according to claim 1, wherein the hindered amine based compound has a molecular weight of 1000 or more.

8. The flame retardant resin composition according to claim 7, wherein the hindered amine based compound has a molecular weight of 3000 or less.

9. The flame retardant resin composition according to claim 6,

wherein the silicone based compound is blended at a ratio of more than 1 part by mass relative to 100 parts by mass of the base resin, and

the hindered amine based compound has a monovalent group represented by the formula (1) and R¹ in the formula (1) represents the alkyl group.

10. A cable comprising:

a sheath; and

a transmission medium provided on the inner side of the sheath and composed of a conductor or an optical fiber,

wherein the sheath is composed of the flame retardant resin composition according to claim 1.