Flame-retardant resin composition

A resin composition, flame retardant technology, applied in the direction of fire retardant coatings, etc., to achieve the effect of excellent reflow heat resistance

Active Publication Date: 2013-09-25
KANEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this composition, the exudation of the organophosphorus-based flame retardant has been improved, but there is still room for improvement in exudation and physical properties under high humidity and heat

Method used

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  • Flame-retardant resin composition
  • Flame-retardant resin composition
  • Flame-retardant resin composition

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0294] (Manufacture example 1) [polymerization process]

[0295]A phosphorus-containing compound (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, product name: HCA, manufactured by Sanko Co., Ltd.) and a nitrogen-containing compound (triallylisocyanurate Ester, product name: TAICROS, manufactured by Ebonick Degusa) is put into a vertical polymerizer with a reflux pipe, a nitrogen introduction pipe and a stirrer at a molar ratio of 1:2, and then the total amount of the phosphorus-containing compound and the nitrogen-containing compound is 0.1 part by weight of a radical initiator (2,3-dimethyl-2,3-diphenylbutane, product name: Novoma BC, manufactured by NOF Corporation) per 100 parts by weight. Under a nitrogen stream, the temperature was slowly raised to 50° C. to 200° C., and stirred for about 12 hours. The obtained flame retardant (B1) had a phosphorus content of 8.5%, a Tg of 127° C., and was a colorless glassy solid at room temperature. Each sample was insoluble in to...

manufacture example 2

[0296] (Manufacturing example 2) [Crosslinking process]

[0297] 100 parts by weight of flame retardant (B1) obtained in manufacture example 1 and free radical initiator (1,3-bis(tert-butylperoxyisopropyl)benzene, product name: perbuchiru P, NOF Co., Ltd.) 0.2 parts by weight were dry-blended to obtain a mixture. The above-mentioned mixture was supplied from the hopper hole of a vented 15 mmφ co-directional twin-screw extruder (manufactured by Technobell Corporation, KZW15TWIN-45MG), and melted and kneaded at a drum setting temperature of 190 to 220°C. The obtained flame retardant (B2) was a colorless glassy solid (Tg: 138° C.) at normal temperature, and each sample was insoluble in toluene and THF. In addition, the phosphorus content was 8.9%, and the cross-linking component ratio was 68%. In addition, the flame retardant (B2) was insoluble in chloroform, and the weight average molecular weight could not be measured.

manufacture example 3

[0299] In the crosslinking step of Production Example 2, 5 parts by weight of inorganic compound (E1) and free radical initiator (1 , 3-bis(tert-butylperoxycumyl)benzene, product name: Perbutil P, manufactured by NOF Corporation) 0.2 parts by weight, melt-kneading in the same manner as in Production Example 2, to obtain a flame retardant ( B3). The obtained flame retardant (B3) was a white glassy solid (Tg: 139° C.) at normal temperature, and was insoluble in toluene and THF. Furthermore, the phosphorus content was 8.7%, and the ratio of the cross-linking component was 60%.

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Abstract

Contained in a thermoplastic resin (A) are a flame retardant (B) that is composed of the reaction product of a specific nitrogen-containing compound (triallyl isocyanurate and the like) and a specific phosphorus-containing compound (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and the like), is insoluble in toluene and contains the phosphorus atoms in 5.0 to 10.0% by weight; and at least one kind of a component (c) selected from the group consisting of a flame-retardant promoter (Cx), an impact modifier (Cy) and a layer compound (Cz).

Description

technical field [0001] The present invention relates to a flame-retardant thermoplastic resin composition that provides a molded article that has high flame retardancy and is excellent in reflow heat resistance, chemical resistance, and the like. Background technique [0002] In recent years, many synthetic resin materials have been used for OA machines, casings, components, connectors of home appliances, automobile parts, building materials, household goods, textile products, and the like. However, since synthetic resin materials are flammable, there are many examples where flame retardancy is required in order to ensure safety against fire, especially for home appliances, electrical appliances, and OA-related parts, so the combination of various flame retardants is being studied . [0003] As a method of making the resin flame-retardant, a method of adding a halogen-based flame retardant represented by brominated polystyrene and an antimony-based flame-retardant additive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08F216/12C08F226/06C09K21/02C09K21/10C09K21/12
CPCC08F26/06C08F226/06C08K5/5205C09K21/12C08F216/12C08K5/3477C08K5/51C08L101/00C09K21/02C09K21/10
Inventor 竹谷秀司山本哲朗
Owner KANEKA CORP
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