Resin composition for producing insulating material and method for producing insulating material

Patent metadata

Field	Value
Publication number	US-9620261-B2
Application number	US-201514617330-A
Country	US
Kind code	B2
Filing date	Feb 9, 2015
Priority date	Feb 28, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A resin composition for producing an insulating material includes (A) 40 to 50% by weight of a base resin formed with a polyolefin-based resin or a derivative thereof, (B) 40 to 50% by weight of a magnesium hydroxide flame retardant of which surface is treated with vinyl silane, (C) 1 to 2% by weight of an antioxidant in which a first antioxidant and a second antioxidant are mixed in a weight ratio of 1:1 to 3, (D) 0.5 to 2% by weight of a lubricant, (E) 2 to 3% by weight of organosilane, (F) 0.05 to 0.2% by weight of an initiator, and (G) 1 to 4% by weight of a catalyst.

First claim

What is claimed is:

1. A resin composition for producing an insulating material comprising:
(A) 40 to 50% by weight of a base resin formed with a polyolefin-based resin or a derivative thereof;
(B) 40 to 50% by weight of a magnesium hydroxide flame retardant of which surface is treated with vinyl silane;
(C) 1 to 2% by weight of an antioxidant in which a first antioxidant and a second antioxidant are mixed in a weight ratio of 1:1 to 3;
(D) 0.5 to 2% by weight of a lubricant;
(E) 2 to 3% by weight of organosilane;
(F) 0.05 to 0.2% by weight of an initiator; and
(G) 1 to 4% by weight of a catalyst,
wherein the second antioxidant is one or more types of thio-based compounds selected from the group consisting of 3,3″-thiobis[propanoic acid], distearyl thiodipropionic acid, and pentaerythritol beta-laurylthiopropionic acid.

2. The resin composition for producing an insulating material of claim 1 , wherein the base resin (A) is an ethylene α-olefin copolymer, polyethylene, an ethylene vinyl acetate copolymer, or a mixture thereof.

3. The resin composition for producing an insulating material of claim 1 , wherein the first antioxidant is one or more types of phenol-based antioxidants selected from the group consisting of pentaerythrityl-tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate], 2,2′-thiodiethylbis-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate], octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 4,4′-thiobis(6-tert-butyl-m-cresol), triethyleneglycol-bis-3 (3-tert-butyl-4-hydroxy-5-methylphenyl)propionate, 4,4′-thiobis[2-(1,1-dimethylethyl)-5-methyl-phenol, and tetrakis[methylene(3,5-di-tert-butyl-4-hydroxy)cinnamate]-methane.

4. The resin composition for producing an insulating material of claim 1 , wherein the organosilane (E) is vinyltrimethoxysilane, vinyltriethoxysilane, tetraethoxysilane, tetra-n-propoxysilane, methyl-triethoxysilane, methyltrimethoxysilane, methyltri(2-methoxyethoxy)silane 3-methacryloyloxypropyl-trimethoxysilane, 3-mercaptopropyl-trimethoxysilane, 3-aminopropyl-trimethoxysilane, 3-glycidyloxypropyl-trimethoxysilane, or a mixture thereof.

5. The resin composition for producing an insulating material of claim 1 , wherein the initiator (F) is t-butyl cumyl peroxide, benzoyl peroxide, cumene hydroperoxide, dicumyl peroxide, methyl ethyl ketone peroxide, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, di-t-butyl peroxide, t-butyl peroxybenzoate, α,α′-bis(tert-butylperoxyisopropyl)benzene, di-isopropylbenzene, or a mixture thereof.

6. The resin composition for producing an insulating material of claim 1 , wherein the catalyst (G) is dibutyl tin dilaurate and prepared in a master batch form.

7. The resin composition for producing an insulating material of claim 1 , further comprising one or more types of functional additives selected from the group consisting of an ultraviolet (UV) stabilizer, a metal antioxidant, a lubricant, a flame retardant aid, and an anti-blooming agent.

Assignees

• Hyundai Motor Co Ltd
• Dym Co Ltd

Inventors

• Choi Seung Woo
• Park Dong Ha
• Seong Baeg Yong
• Choi Eun Ho
• Yang Jong Seok

Classifications

• C08K2003/2224

  Magnesium hydroxide · CPC title

• H01B3/441 Primary

  from alkenes · CPC title

• H01B7/295

  using material resistant to flame · CPC title

• C08K9/06

  with silicon-containing compounds · CPC title

• C08K5/36

  Sulfur-, selenium-, or tellurium-containing compounds {(C08K5/0091 takes precedence)} · CPC title