Flame-retardant resin composition

A resin composition and flame retardant technology, applied in the field of flame retardants, can solve the problems of difficulty in imparting high flame retardancy, poor flame retardant effect, exudation heat resistance, etc.

Inactive Publication Date: 2005-03-23
POLYPLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although non-halogen flame retardants do not contain harmful halogens, compared with halogen flame retardants, their flame retardant effect is poor, so a large amount of flame retardants must be added
Excessive addition of flame retardants will cause exudation or decrease the mechanical properties of the resin.
Therefore, the flame retardancy and mechanical properties cannot be improved at the same time
For example, when expanded graphite is used together, the appearance during molding will be significantly reduced
In particular, when phosphate ester is used as a phosphorus-containing compound, not only bleed-out or a decrease in heat resistance, but also a significant decrease in physical properties due to hydrolysis
[0007] As mentioned above, it is difficult to impart high flame retardancy without reducing the performance of the resin by conventional methods.
In addition, although the above-mentioned flame retardants can achieve flame retardancy for specific resins, it is difficult to impart high flame retardancy to a wide range of thermoplastic resins.

Method used

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  • Flame-retardant resin composition
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Examples

Experimental program
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Effect test

preparation example Construction

[0089] The preparation method of the above-mentioned phosphate ester amides is not particularly limited, and reference can be made to JP-A No. No. 10-175985, Jomal Of Chem.Soc.C, 3614 (1971), JP-A No. 8-59888, JP-A 63-235363, JP-A 54-19919, etc. For example, in the presence of an amine catalyst or metal chloride, by (1) reacting phosphorus oxyhalide with phenols and then reacting with amines, (2) reacting phosphorus oxyhalide with amines and then reacting with phenols Method of reaction, (3) method of reacting phenyl dihalophosphate with amines, (4) method of reacting diphenyl halophosphate with amines, (5) method of reacting diphenylphosphate with amines method and so on.

[0090] As preferred phosphoric acid ester amides, compounds described in the above-mentioned patent publications and high molecular weight polycondensed phosphoric acid ester amides can be used. As these phosphate ester amides, there are, for example, N-(diaryloxyphosphinyl) substituted alkyleneamines [e...

Embodiment 1～40

[0482] Examples 1-40 and Comparative Examples 1-11

[0483] The above components were mixed according to the proportions (parts by weight) in Table 1 to Table 5, and the resin composition was obtained by kneading and extruding with an extruder. These resin compositions were injection molded into molded articles for combustion tests and molded articles for tensile evaluation, and their flammability, blooming properties, and hydrolysis resistance were evaluated. The results are shown in Tables 1-5.

[0484] It can be clearly seen from the table that combining the flame retardant composed of phosphorus-containing compound (A), aromatic resin (B), and specific flame retardant additive (C) with specific stabilizing additive (functional compound and / or hydrophobic Compared with the comparative example lacking any one of the components, the examples used in combination with the active compound) (D) all have good flame retardancy, blooming property and hydrolysis resistance.

[0485...

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Abstract

A flame-retardant resin composition comprises a thermoplastic resin; a flame retardant comprising a phosphorus-containing compound (A), a aromatic resin (B), and at least one flame-retardant auxiliary (C) selected from a nitrogen-containing compound and a metal salt of an inorganic acid; and at least one stabilizer auxiliary (D) selected from a compound having a functional group reactive to an active hydrogen atom and a water-repellent compound. The phosphorus-containing compound may be a phosphoric ester. The aromatic resin may be a polyphenylene sulfide-series resin or a polyphenylene oxide-series resin. The nitrogen-containing compound is a salt of an amino group-containing triazine compound with an oxygen acid, a salt of an amino group-containing triazine compound with a hydroxyl group-containing triazine compound, a polyphosphoric acid amide, a cyclic urea compound, or others. The present invention provides a flame-retardant resin composition which has been flame-retarded without using a halogen-containing flame retardant.

Description

technical field [0001] The present invention relates to a flame retardant containing thermoplastic resin, phosphorus-containing compound, aromatic resin, and specific flame retardant additives (nitrogen-containing compounds, metal salts of inorganic acids), and specific stabilizing additives (containing specific A flame-retardant resin composition of a functional group compound, a hydrophobic compound), a method for producing the same, and a molded body formed from the flame-retardant resin composition. Background technique [0002] Among thermoplastic resins, polyester resins such as polybutylene terephthalate or styrene resins have good mechanical properties, electrical properties, weather resistance, water resistance, chemical resistance and solvent resistance, so It can be used in various applications such as electrical and electronic parts and automobile parts. On the other hand, with the gradual expansion of its application scope, how to improve its flame retardancy i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/00C08K3/24C08K5/00C08K5/098C08K5/16C08K5/29C08K5/3492C08K5/49C08L25/02C08L55/02C08L67/02C08L71/12C08L71/14C08L81/02
CPCC08L71/14C08K5/098C08K5/16C08K5/0066C08K5/49C08K3/0058C08L25/02C08K3/24C08L81/02C08L67/02C08L55/02C08K5/34928C08L71/123C08K5/29C08K3/016
Inventor 原科初彦
Owner POLYPLASTICS CO LTD
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