Solid imaging compositions for preparing polypropylene-like articles

a technology of solid imaging and polypropylene, applied in the direction of photosensitive materials, instruments, electric/magnetic/electromagnetic heating, etc., can solve the problems of lack of material properties that give users of prototypes a sense of look, lack of product look and feel accuracy, and mislead those viewing the article into incorrect assumptions regarding appropriate packaging, labeling,

Inactive Publication Date: 2002-02-14
DSM IP ASSETS BV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0034] The appearance of a simulation material is also an important consideration. Polypropylene has a cloudy appearance. Therefore a suitable simulation material for polypropylene should also have a cloudy appearance and, as much as possible for UV cured materials, minimum color.

Problems solved by technology

However, such compositions lack the material properties that give users of the prototypes a sense of look and feel for the object when produced in the production material.
Such a lack of look and feel accuracy in product prototyping is not just an aesthetic issue.
For example, use of a transparent prototype composition or an overly opaque composition may mislead those viewing the article into incorrect assumptions regarding appropriate packaging, labeling, coloring, and advertising of a product.

Method used

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  • Solid imaging compositions for preparing polypropylene-like articles
  • Solid imaging compositions for preparing polypropylene-like articles
  • Solid imaging compositions for preparing polypropylene-like articles

Examples

Experimental program
Comparison scheme
Effect test

examples 1-23

[0124] Compositions according to the invention were prepared having the components listed in Tables 1-5. Quantities are listed in weight percent.

1 TABLE 1 INGREDIENT Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Epoxy 1 33.8 47.6 43.7 43.1 46.4 Epoxy 3 22.0 21.5 Epoxy 4 15.0 Acrylate 1 25.0 24.0 10.0 12.0 26.0 Acrylate 2 11.0 13.0 Polyol 1 18.0 25.0 24.0 Polyol 5 2.0 CatI 4.6 2.5 4.3 4.1 2.7 FRI 3.4 3.7 3.8 3.6 3.2 Antioxidant 0.2 0.2 0.2 0.2 0.2 % Epoxy 48.8 69.6 43.7 43.1 67.9 % Acrylate 12.5 12.0 16.0 19.0 13.0 % CatI 32.2 13.9 33.9 31.8 14.6 % FRI 4.6 2.5 4.3 4.1 2.7 % Antioxidant 1.7 1.9 1.9 1.8 1.6 Epoxy / Hydroxy 2.41 3.57 2.36 2.8 3.33 Equiv. Wt.

[0125]

2 TABLE 2 INGREDIENT Ex. 6 Ex. 7 Ex. 8 Ex. 9 Ex. 10 Epoxy 1 43.8 45.5 38.5 46.4 44.4 Epoxy 321.5 Epoxy 4 15.0 Acrylate 1 10.0 24.0 8.0 26.0 11.0 Acrylate 2 11.0 9.0 12.0 Acrylate 3 3.5 Polyol 1 25.0 15.0 24.5 Polyol 2 21.0 Polyol 5 2.0 6.0 CatI 4.8 2.6 4.1 2.7 4.5 FRI 3.2 3.3 4.2 3.2 3.4 Antioxidant 0.2 0.1 0.2 0.2 0.2 % Epoxy 43.8 45.5 53.5 67....

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Abstract

This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.

Description

[0001] This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.BACKGROUND OF INVENTION[0002] In the field of liquid-based solid imaging, alternatively known as stereolithography, compositions have been developed which are capable of generating solid objects having the properties of epoxies and / or acrylates. Solid imaging generated objects made from previous epoxy and / or acrylate compositions provide a prototypical representation of the physical shape of plastic articles made on a production basis out of materials such as ABS, nylon, polyethylene, propylene, etc. However, such compositions lack the material properties that give users of the prototypes a sense of look and feel for the object when produced in the production material. Such a lack of look and feel accuracy in product prototyping is not just an aesthetic issue. The look and feel of ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C08G59/22C08G59/62C08J5/00G03F7/004G03C9/08G03F7/00G03F7/027G03F7/029G03F7/032G03F7/038
CPCG03F7/0037G03F7/027G03F7/032G03F7/038B33Y70/00G03F7/004
Inventor LAWTON, JOHN A.CHAWLA, CHANDLER P.
Owner DSM IP ASSETS BV
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