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Thermoplastic polymer blends comprising crosslinked polar olefin polymers in a thermoplastic polyurethane matrix

A thermoplastic polyurethane and polar olefin technology, used in insulated cables, electrical components, circuits, etc., can solve problems such as high cost, insulation resistance failure, and poor smoke density

Inactive Publication Date: 2012-10-24
DOW GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main disadvantages of this product line include high cost, insulation resistance (TR) failure, poor smoke density and high material density

Method used

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  • Thermoplastic polymer blends comprising crosslinked polar olefin polymers in a thermoplastic polyurethane matrix
  • Thermoplastic polymer blends comprising crosslinked polar olefin polymers in a thermoplastic polyurethane matrix
  • Thermoplastic polymer blends comprising crosslinked polar olefin polymers in a thermoplastic polyurethane matrix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0094] Example 1-4 of the present invention: preparation of novolak containing TPU, ATH, RDP and epoxidation Lacquer resin-A

[0095] Four samples were prepared according to the recipe given in Table 1. In these examples, TPU and ATH were pre-dried under vacuum at 90°C for 8 hours. Compounding was carried out on a Haake mixer at a rotation speed of 60 rpm and a set temperature of 180°C. Generally, compounding lasts 6 minutes after all components are fed into the mixer.

[0096] Table 1. Preparation of Resin-A comprising TPU, ATH, RDP and epoxidized novolac resin. Percentages in the table are percent by weight, based on the total weight of all components in the final polymer blend.

[0097]

[0098] Inventive Examples 5-8: Preparation of trees comprising EVA, ATH, vinylsilane and peroxide lipid B

[0099] Four samples were prepared according to the recipe given in Table 2. In these examples, the EVA was pre-dried under vacuum at 40°C for 8 hours. ATH was pre-dr...

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Abstract

Polymer blends comprising a first phase comprising a thermoplastic polyurethane matrix and a second phase comprising a crosslinked polar olefin polymer are provided. The first phase is a continuous phase and the second phase can be co-continuous with the first phase, or dispersed as a non-continuous phase in the first phase. The first phase further comprises a metal hydroxide flame retardant and an organic flame retardant. The second phase further includes a metal hydroxide which is coupled to the olefin polymer via a silane coupling agent.

Description

technical field [0001] The present invention relates to thermoplastic blends comprising a discontinuous or co-continuous phase comprising a cross-linked polar olefin polymer in a continuous thermoplastic polyurethane matrix, and to Articles made from thermoplastic blends and methods of making said thermoplastic blends. Background technique [0002] Thermoplastic Polyurethane (TPU) based Halogen Free Flame Retardant (HFFR) package for wire insulation / cable jacketing of personal electronic devices to replace halogen containing products. TPU-based products offer superior flame retardancy and mechanical properties. In addition, TPU-based flame retardant polymers can meet heat distortion test (UL-1581) requirements. However, the main disadvantages of this product line include high cost, insulation resistance (TR) failure, poor smoke density and high material density. Contents of the invention [0003] One aspect of the present invention provides a polymer blend comprising a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L23/00C08K3/22C08K5/00C08K5/54H01B7/295
CPCC08L63/04C08K3/22C08L75/04C08L2201/02C08L23/0853C08K5/523C08L31/04C08L23/02C08K5/54C08L2666/20C08L2666/22C08L2666/04C08L23/00H01B7/295
Inventor X.W.严J.G.陈T.吴H.L.黄H.D.郭J.M.科根W.W.古
Owner DOW GLOBAL TECH LLC