Annular or tubular shaped articles of novel polymer blends

A technology of polymers and blends, applied in the field of tubular or ring products, which can solve the problems of reducing gasoline mileage and increasing vehicle weight

Inactive Publication Date: 2009-02-18
SABIC INNOVATIVE PLASTICS IP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fluid and gas transfer devices under the hood add weight to the vehicle, reduce the

Method used

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  • Annular or tubular shaped articles of novel polymer blends
  • Annular or tubular shaped articles of novel polymer blends
  • Annular or tubular shaped articles of novel polymer blends

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0378] Recipe 1-9

[0379]Some properties are measured using ASTM test methods. All molded samples were conditioned at 50% relative humidity for at least 48 hours prior to testing. Reverse notch Izod impact values ​​are measured according to ASTM D256 on 3.2 mm thick test bars at room temperature. Heat deflection temperature (HDT) is measured according to ASTM D648 at 0.46 MPa (66 psi) on 3.2 mm thick test bars. Tensile properties were measured on 3.2 mm Type I bars according to ASTM method D638. Flexural properties are measured on 3.2 mm bars according to ASTM method D790. Vicat temperature is measured at 50N according to ASTM method D1525. The Differential Scanning Calorimeter (DSC) was run according to ASTM method D3418, just with different heating and cooling rates. Samples were heated at 20°C / min to 350°C and cooled at 20 or 80°C / min to record the peak crystallization temperature (Tc). Dynamic mechanical analysis (DMA) was carried out on a 3.2mm test strip in a bent...

Embodiment 2

[0391] The above formulations 1, 2, 3, 4 and 5 of the present invention were injection molded into pipe parts and pipe connectors using one or more of the methods described above.

Embodiment 3

[0393] Materials prepared according to formulations 6, 7, 8 and 9 in Table 1 were injection molded into mold cavities to form tube parts.

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Abstract

The present invention is directed to a tubular article of manufacture in an annular or tubular shape having an outer diameter, an inner diameter and a length comprising one or more materials selected from the group consisting of: a) an immiscible blend of polymers comprising one or more polyetherimides, having more than one glass transition temperature wherein the polyetherimide has a glass transition temperature greater than 217 DEG C; b) a miscible blend of polymers, comprising one or more polyetherimides, having a single glass transition temperature greater than 180 DEG C; or, c) a single polyetherimide having a glass transition temperature of greater than 247 DEG C.

Description

[0001] related application [0002] This application is a continuation of each of the following U.S. patent applications: USSN 11 / 228728, filed September 16, 2005, in the name of Gallucci et al., and entitled "Flame Retardant Polysulfone Blends"; USSN 11 / 228729, filed 16, titled "Flame Retardant Polymer Blends"; USSN 11 / 229455, filed September 16, 2005, titled "Improved Polyaryl EtherKetone Polymer Blends" in the name of Gallucci et al.; and USSN 11 / 314542 filed on December 21, 2005 in the name of "Annular or Tubular Shaped Articles of Novel Polymer Blends". technical field [0003] The present invention relates to a tubular or annular article having a length, an inner diameter and an outer diameter, the article comprising at least one polyetherimide polymer having a Tg greater than about 180°C. Background technique [0004] In various end-use applications requiring the use of annular articles, there is a need for materials with good chemical resistance and high temperature...

Claims

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Application Information

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IPC IPC(8): C08L79/08
Inventor 罗伊·R·奥德尔卡皮尔·C·谢思迈克尔·S·多纳文马克·A·桑纳拉詹德拉·K·辛格罗伯特·R·加卢奇
Owner SABIC INNOVATIVE PLASTICS IP BV
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