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Paint system and method of painting fiber reinforced polypropylene composite components

A fiber-reinforced, composite material technology, used in doors, vehicle parts, devices for coating liquids on surfaces, etc., can solve problems such as affecting the dispersion of PET fibers, affecting the mechanical properties of PET fibers, and affecting the mechanical properties of matrix polymers.

Inactive Publication Date: 2008-05-14
EXXON RES & ENG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More specifically, the extrusion compounding screw configuration may affect the dispersion of PET fibers within the PP matrix, and the extrusion compounding processing conditions may affect not only the mechanical properties of the matrix polymer but also the mechanical properties of PET fibers

Method used

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  • Paint system and method of painting fiber reinforced polypropylene composite components
  • Paint system and method of painting fiber reinforced polypropylene composite components
  • Paint system and method of painting fiber reinforced polypropylene composite components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0125]Various amounts of PP3505G were mixed with 0.25" long polyester fibers obtained from Invista Corporation in a Haake single screw extruder at 175°C. The strands exiting the extruder were cut into 0.5" lengths and injected using a Boy 50M ton The molding machine was injection molded at 205°C into a mold kept at 60°C. Injection pressure and nozzle pressure were maintained at 2300 psi. Samples were molded according to ASTM D3763 geometry and tested for instrumented impact under standard automotive conditions for interior components (25 lbs at 15 MPH at -29°C). In Table 1 the total energy absorbed and the impact results are given.

[0126] Table 1

[0127] Examples#

[0128] *Examples 1-6: Samples did not break or split due to impact, no fragments from test specimens.

Embodiment 7

[0129] **Example 7: Fragments of the sample fell off due to impact.

Embodiment 8

[0130] ***Example 8: The sample was completely broken due to the impact.

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PUM

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Abstract

A fiber reinforced polypropylene composite door core module. The door core module includes a module plate molded from a composition comprising at least 30 wt% polypropylene based resin, from 10 to 60 wt% organic fiber, from 0 to 40 wt% inorganic filler, and optionally lubricant (typically present at from 0 to 0.1 wt%), based on the total weight of the composition, the module plate having at least a first side and a second side. A process for producing a door core module is also provided. The process includes the step of injection molding a composition to form the door core module, the door core module having a module plate having at least a first side and a second side, wherein the composition comprises at least 30 wt% polypropylene, from 10 to 60 wt% organic fiber, from 0 to 40 wt% inorganic filler, and from 0 to 0-.1 wt% lubricant, based on the total weight of the composition.

Description

[0001] Inventor: Arnold Lustiger [0002] Jeffrey Valentage [0003] Cross References to Related Applications [0004] This application claims priority to U.S. Patent Application Serial No. 11 / 387,190, filed March 23, 2006, which is an extension of U.S. Patent Application Serial No. 11 / 318,363, filed December 23, 2005 continuation-in-part of U.S. Patent Application Serial No. 11 / 318,363, which is a continuation-in-part of U.S. Patent Application Serial No. 11 / 301,533 filed December 13, 2005, and claims the U.S. Provisional Application Serial No. filed May 17, 2005 Interest in No. 60 / 681,609. field of invention [0005] The present invention generally relates to door core modules and the like prepared from fiber reinforced polypropylene compositions and methods of making such door core modules. Background of the invention [0006] In recent years, efforts have been made to improve the quality of vehicle construction and reduce the cost of manufacturing and operating said ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/04B60J5/04B29C45/00C08L23/10
CPCB05D3/144B05D7/53B05D2201/00B05D3/08
Inventor A·勒斯蒂吉尔J·瓦伦塔格
Owner EXXON RES & ENG CO