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Flame retardant thermoplastic composition and articles comprising the same

A thermoplastic composition, hydroxide technology, applied in conductors, electrical components, circuits, etc., can solve problems such as adverse effects on physical properties

Inactive Publication Date: 2013-03-20
SABIC INNOVATIVE PLASTICS IP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other flame retardants such as magnesium hydroxide and aluminum trihydrate are known, but high levels of these flame retardants often have an adverse effect on physical properties

Method used

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  • Flame retardant thermoplastic composition and articles comprising the same
  • Flame retardant thermoplastic composition and articles comprising the same
  • Flame retardant thermoplastic composition and articles comprising the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0160] Combining thermoplastic compositions with RDP, MPP and Mg(OH) 2 Melt blended in the amounts shown in Table 2, the thermoplastic composition comprised 38.5% by weight PPE, 26.9% by weight SEBS I, 25.6% by weight LLDPE, and 9.0% by weight polybutene, based on the total weight of the thermoplastic material. RDP, MPP and Mg(OH) 2 The amounts of are shown in parts / 100 parts thermoplastic composition (PPE+SEBS I+LLDPE+polybutene). The compositions were molded into 3.2mm bars for flammability testing. The flammability test was performed according to the procedure of the Underwriter's Laboratory Bulletin 94 entitled "Tests for Flammability of Plastic Materials, UL94". Each extinguished strip was ignited twice. According to this protocol, the material is classified as HB, V0, V1 or V2 based on the test results obtained for 5 samples. The individual standards for these flammability classifications of UL94 are briefly described below:

[0161] HB: For a 5 inch sample, positio...

Embodiment 10-15

[0171] Based on thermoplastic composition with BTPP, RDP, MPP and Mg(OH) 2 Melt blended in the amounts shown in Table 3, the thermoplastic composition comprised 42.6% by weight PPE, 32.0% by weight SEBS I, 21.4% by weight LLDPE, and 4.0% by weight polybutene, based on the total weight of the thermoplastic material. The amounts of BTPP, RDP, MPP and Mg(OH)2 are shown in parts per hundred parts of thermoplastic composition (PPE+SEBSI+LLDPE+polybutene). The compositions were molded into 3.2 mm bars for the flammability test and tested as described in Examples 1-9.

[0172] table 3

[0173] Example BTPP RDP MPP Mg(OH) 2 burn time UL94 rating 10 3.9 19.3 11.4 7.7 5.2 V0 11 0 19.3 11.4 7.7 17.4 V1 12 0 24.4 12.8 7.7 2.9 V0 13 0 25.7 7.7 7.7 1.9 V0 14 6.4 19.3 11.4 11.4 24.2 V1 15 10.3 15.4 7.7 10.3 8.8 V0

[017...

Embodiment 16-19

[0176] 26% by weight of PPE, 25% by weight of SEBS I, 15.0% by weight of polyethylene copolymer (as shown in Table 4) and 2% by weight of polybutene of the total weight of the composition were mixed with BTPP in the amount shown in Table 4 , RDP, MPP and Mg(OH) 2 Melt mixing. The amounts of BTPP, RDP, MPP and Mg(OH)2 are shown in weight percent of the total weight of the composition. The compositions were molded into 2.0 mm bars for the flammability test and tested as described in Examples 1-9. In Example 19, one out of ten burns resulted in dripping at 20 seconds, giving a V2 rating.

[0177] Table 4

[0178]

[0179] Examples 16-19 illustrate that compositions containing significant amounts of polyolefin and comprising various polyethylene copolymers can achieve a V2 rating or better using a flame retardant additive composition.

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Abstract

A flame retardant thermoplastic composition comprises: a poly(arylene ether); an impact modifier; a polyolefin; a phosphoric acid salt selected from the group consisting of melamine phosphate, melamine pyrophosphate, melamine orthophosphate, diammonium phosphate, monoammonium phosphate, phosphoric acid amide, melamine polyphosphate, ammonium polyphosphate, polyphosphoric acid amide, and combinations of two or more of the foregoing; a metal hydroxide; and an organic phosphate wherein the amount of phosphoric acid salt by weight is greater than or equal to the amount of organic phosphate by weight. The flame retardant composition is may be used in the production of electrical wires.

Description

[0001] This application is a divisional application of an invention patent application with the filing date of March 21, 2006, the application number of 200680003285.8 (PCT / US2006 / 010462), and the title of "flame-retardant thermoplastic composition and products containing it". technical field [0002] The present application relates to flame retardant additive compositions, in particular, the present invention relates to flame retardant additive compositions for various thermoplastics. Background technique [0003] A wide variety of applications require flame retardant thermoplastic compositions. In addition to being flame retardant, the thermoplastic composition must often meet a number of criteria ranging from physical properties to appearance and environmental impact. In recent years, in order to meet many or all of these criteria, there has been an increasing trend to use phosphate esters as flame retardants. While the use of phosphate esters has been successful in many...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L53/00C08L53/02C08L23/00C08K3/22C08K3/32C08K5/3492C08K5/523H01B7/295C08K5/34
CPCC08K5/34928C08L53/02C08K3/22C08K5/0066C08L23/22C08K5/523C08L71/12C08L2205/03C08L23/02C08L53/00C08L2666/24C08L2666/04C08L2666/02C08K3/32C08K5/52C08K5/521
Inventor 小阪一成李秀错姚维广
Owner SABIC INNOVATIVE PLASTICS IP BV
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