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Flame retardant thermoplastic resinous composition

A kind of flame retardant composition, technology of thermoplastic polymer, applied in embodiment, field of flame retardant thermoplastic resin composition

Inactive Publication Date: 2010-06-30
SABIC INNOVATIVE PLASTICS IP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of this patent requires as an essential component a basic inorganic compound soluble in a solvent

Method used

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  • Flame retardant thermoplastic resinous composition
  • Flame retardant thermoplastic resinous composition
  • Flame retardant thermoplastic resinous composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4 and comparative example 1-2

[0055] Compositions were obtained by mixing the components shown in Table 1. Each composition additionally contains 5.9wt% antimony oxide, 0.2wt% hydrotalcite, 0.4wt% anti-drip additive, 3 parts per hundred resin components (phr; wherein the resin components include MMA-ASA-1, ASA-1 , SAN, and FR-1) a mixture of lubricants, stabilizers, and antioxidants, and 2phr of pigments. The mixed materials were molded into test parts, and the parts were tested for flowability, notched Izod impact strength, and flame retardancy (FR properties). The test results are shown in Table 1 below.

[0056] Table 1

[0057] components

[0058] The composition shows an increase in flow as the molecular weight of the SAN component decreases. However, surprisingly and unexpectedly, as the molecular weight of the SAN component is reduced, there is no corresponding decrease in impact strength in the molded part. In contrast, the impact strength remains essentially constant. The combinatio...

Embodiment 5-9

[0060] Compositions were obtained by mixing the components shown in Table 2. Each composition additionally contains 0.4wt% anti-drip additive, 0.2wt% hydrotalcite, 3 parts (per hundred resin components) (phr; wherein the resin components include MMA-ASA-1, ASA-1, SAN, and FR-1) a mixture of lubricants, stabilizers, and antioxidants, and 0.5phr pigments. The mixed mass was molded into test parts, and the parts were tested for flow and notched Izod impact strength. The test results are shown in Table 2 below.

[0061] Table 2

[0062] components

Ex.5

Ex.6

Ex.7

Ex.8

Ex.9

MMA-ASA-1

37.4

37.4

37.4

37.4

37.4

FR-1

19.9

21.0

22.1

19.9

21.0

[0063] components

Ex.5

Ex.6

Ex.7

Ex.8

Ex.9

SAN-1

35.1

35.1

35.1

35.1

35.1

Antimony oxide

5.9

5.9

5.9

5.6

5.6

...

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Abstract

Disclosed are compositions comprising: a flame retardant composition comprising (i) an acrylonitrile-styrene-acrylate graft copolymer (ASA) or acrylate- modified ASA, (ii) at least one rigid thermoplastic polymer comprising structural units derived from styrene and acrylonitrile; alpha-methylstyrene and acrylonitrile; alpha-methylstyrene, styrene, and acrylonitrile; styrene, acrylonitrile, and methyl methacrylate; alpha-methyl styrene, acrylonitrile, and methyl methacrylate; or alpha- methylstyrene, styrene, acrylonitrile, and methyl methacrylate, or mixtures thereof, (iii) at least one halogenated flame retardant, (iv) at least one antidrip additive, (v) optionally at least one additive which comprises an inorganic or organic antimony compound, and (vi) optionally at least one acid scavenger. Articles made from said compositions are also disclosed.

Description

Background technique [0001] The present invention relates to a flame-retardant thermoplastic resin composition exhibiting improved melt fluidity while maintaining impact strength in molded articles. In a specific embodiment, the present invention relates to a rubber-modified thermoplastic resin composition comprising a halogenated flame retardant. [0002] A common problem in thermoplastic resin compositions is the need for high melt flow to facilitate applications such as injection molding. It is known that reducing the molecular weight of one or more resin components of a thermoplastic composition generally results in a desired increase in flow. However, it is generally observed that when the molecular weight of one or more of the resin components is reduced, the mechanical properties such as impact strength in molded articles of the composition are often reduced to unacceptable levels. For example, US Pat. No. 6,403,723 teaches resin compositions including acrylonitrile-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C09K21/14
CPCC08L51/003C08L51/00C08K3/2279C08L25/12C09K21/14C08L2666/24C08L2666/04C08L2666/02C08K5/02C08L63/00
Inventor 弗兰克·休伊杰斯多米尼克·阿诺德
Owner SABIC INNOVATIVE PLASTICS IP BV
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