Method for treaitng resin composition

A technology of resin composition and treatment method, applied in the preparation method of halide, chemical instrument and method, preparation of bromide, etc., can solve the problems of no decomposition efficiency, no description of thermoplastic resin, etc.

Inactive Publication Date: 2002-07-10
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is characterized in that the metal chloride acts as a catalyst for the thermal decomposition of the resin, making the resin gasify or "oily", but there is no description of the decomposition efficiency, etc.
[0007] JP-A-6-144801 describes bromine and antimony contained in thermosetting epoxy resins for LSI sealing materials, and the gas generated by heating is hydrolyzed with alkali to recover bromine and antimony, but there is no description about thermoplastic resins

Method used

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  • Method for treaitng resin composition
  • Method for treaitng resin composition
  • Method for treaitng resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1，2

[0084] Embodiment 1, 2 and comparative example 3, are the comparison of the occasion where the metal compound is mixed in the HIPS containing decabromodiphenyl ether and the occasion where the metal compound is not mixed therein; embodiment 1 and comparative example 1, 2 are recovery systems ( Kneader) comparison of decompression effect with no decompression effect. The reaction condition is that the effective treatment surface area is 300m 2 , specific energy 150MJ / m 3 .

Embodiment 3

[0086] Examples 3, 4 and Comparative Example 4 show the effect of adding a hydrotreating agent. Example 3 is to mix 30wt% of high boiling point (≥450°C) mineral oil into every 70wt% of the model resin composition. Since the mineral oil is liquid, as a pre-mixing, an additional processing operation is performed on a ZSK (φ25mm) twin-screw mixer made by the German company ワ-ナ- to make a resin composition, and then the resulting resin composition is put into a preheating kneading extrusion Getting out of the plane. The specific energy at this moment is adjusted to make the experience of the material in the above two machines add up to be the same as in Example 3. In Comparative Example 4, 90 wt% of PP and 10 wt% of the model resin composition were added and mixed. The reaction condition is that the effective treatment surface area is 300m 2 , specific energy 150MJ / m 3 .

Embodiment 6-10 and comparative example 5

[0088] Examples 6-10 and Comparative Example 5 are comparisons of the effects obtained by various effective treatment surface areas and specific energies.

[0089] Tables 1 to 3 list the results of the above-mentioned Examples and Comparative Examples.

[0090] Example 1

[0091] Example 3

[0092] Note) nd: Not detected.

[0093] project

[0094] Note) nd: Not detected

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Abstract

A method for treating a resin composition which comprises kneading a resin composition comprising a part by weight of a thermoplastic resin, 0 to 0.7 parts by weight of a treating agent capable of hydrogenating a halogen and a halogenated compound at 280 to 450 °C in the presence of a metal compound which combines with a halogen atom to form a halogenated metal compound having a boilding or sublimating temperature of 450 °c or lower under atmospheric pressure, to thereby convert the halogenated compound to a halogenated metal compound, and separating the halogenated metal compound and a mixture of the thermoplastic resin with the treating agent capable of hydrogenating a halogen and recovering them. The method can be employed for treating a resin waste without converting it to a gas or an oil, to remove halgoens and metal oxides from it and recover them in a short treatment time in good yield and to recover a treated resin for reuse as a solid fuel in good yield.

Description

technical field [0001] The present invention relates to converting the halogen contained in the halogenated flame retardant into a metal halide compound by treating the resin composition composed of a thermoplastic resin and a halogenated flame retardant at a temperature below 450°C, from the resin composition A method for separating and recovering thermoplastic resins and metal halide compounds. Background technique [0002] Flame retardant formulations are used in housing materials of household appliances and resin materials for building materials. In particular, brominated compounds are commonly mixed in TV cabinet materials to comply with UL specifications, and the bromine content in such cabinet materials is within the range of 12-15 wt%. And in order to make the flame retardancy more prominent, some metal compounds are also mixed as flame retardant additives. These compounds are easily combined with halogens when heated to form metal halide c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B9/00C01B9/04C08J11/16
CPCC01B9/00C01B9/04C08J11/16Y02W30/62
Inventor 藤泽刚士新井义之三上宏
Owner ASAHI KASEI KK
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