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Plasticized polyolefin compositions

A technology of polyolefin and composition, applied in the field of plasticized polyolefin, can solve problems such as product defects and processing difficulties

Inactive Publication Date: 2011-04-06
EXXONMOBIL CHEM PAT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can cause processing difficulties and product defects

Method used

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  • Plasticized polyolefin compositions
  • Plasticized polyolefin compositions
  • Plasticized polyolefin compositions

Examples

Experimental program
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Embodiment Construction

[0309] The present invention can be better understood with reference to the following examples and tables, but they are not intended to limit the invention. Tables 1 and 2 describe the polypropylene resins and fluids employed in these examples.

[0310] Table 1. List of polymers in the examples

[0311]

[0312] Table 2a, List of Fluids and Polymer Modifiers in the Examples

[0313]

[0314] Table 2b, the performance of the fluid in the embodiment

[0315]

[0316] Examples in Tables 3 and 4

[0317] Blends of random copolymer polypropylene (RCP) and 10% fluid were prepared by melt compounding in a single screw compounding extruder (extruder method). A 70-ton injection molding machine was used to prepare standard ASTM specimens. Some of the molded samples were gamma irradiated at 7.5 MRad and then aged in an oven at 60°C for 3 weeks prior to testing. Other samples were simply subjected to an aging procedure prior to testing.

[0318] As expected, exposure to r...

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Abstract

The present invention relates to radiation resistant plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of USSN 60 / 544,108, filed February 12, 2004. Field of Invention [0003] The present invention relates to radiation resistant plasticized polyolefins comprising polyolefins and non-functionalized plasticizers and articles produced therefrom. Background of the Invention [0004] Polyolefins are used in many everyday items. However, a disadvantage of many polyolefins, especially propylene homopolymers and some propylene copolymers, is their relatively high glass transition temperature. This property makes these polyolefins brittle (especially at low temperatures). Many polyolefin applications benefit from useful properties over a wide temperature range; thus, there is a need to provide polyolefins capable of maintaining desired properties such as high or low temperature performance, etc., while maintaining or improving impact strength and toughness at low temperatures. In particular...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/02C08K5/01A61L2/00A61L2/08C08L23/10
CPCC08L2205/02C08L23/10A61L2/08C08K5/01
Inventor 李雯B·R·查普曼C·Y·林B·R·兰德马克D·J·洛斯
Owner EXXONMOBIL CHEM PAT INC