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Photocurable polymers, photocurable polymer compositions and lithographic processes including the same

a technology of photocurable polymers and compositions, applied in the field of functionalized poly (aryl ether sulfones) polymers, can solve the problems of moderate mechanical properties and thermal stability of articles, and achieve the effects of high thermal properties, high tg, and high mechanical properties

Inactive Publication Date: 2019-05-23
SOLVAY USA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a special type of polymer called functionalized PAES that can be used in 3D printing processes. This polymer can be turned into a liquid state and then cured by UV light to produce high-quality materials with good thermal properties. The main benefit of this invention is that it allows for the production of high-quality materials using a 3D printing process.

Problems solved by technology

Polymerizable compositions that are liquid are room temperature are easier to use in a printing process, but they generally lead to articles having moderate mechanical properties and thermal stability.

Method used

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  • Photocurable polymers, photocurable polymer compositions and lithographic processes including the same
  • Photocurable polymers, photocurable polymer compositions and lithographic processes including the same
  • Photocurable polymers, photocurable polymer compositions and lithographic processes including the same

Examples

Experimental program
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Effect test

example 1

of PPSU with 4-Bromobutene (Invention)

[0116]This example demonstrates the synthesis of a functionalized PPSU polymer, more precisely functionalized with two terminal molecules according to the following scheme:

[0117]4,4′-dichlorodiphenyl sulfone (82.46 g, 0.287 mol), 4,4′-Biphenol (65.37 g, 0.351 mol), K2CO3 (50.95 g, 0.369 mol), and sulfolane (345 g) were combined in a 1 L 4-neck reaction vessel equipped with a mechanical stirrer, a Dean-Stark trap (wrapped in insulating cloth), an internal thermometer, and a nitrogen sparge tube. The resulting mixture was then slowly heated with stirring (45 min) to 210° C. and held at that temperature for 3.5 hours. Following build in molecular weight, the reaction mixture was then cooled to 90° C. and diluted with anhydrous NMP (about 230 mL) and K2CO3 was added (50 g). Following stirring for 15 minutes, 4-bromo-1-butene (112 g, 0.831 mol) was slowly injected via syringe and the resulting mixture was allowed to stir overnight at 100° C. To colle...

example 2

of PPSU with Vinyl Ether (Comparative)

[0119]This example demonstrates the synthesis of a functionalized PPSU polymer, more precisely functionalized with two terminal molecules according to the following scheme:

[0120]4,4′-dichlorodiphenyl sulfone (7.17 g, 0.025 mol), 4,4′-Biphenol (4.92 g, 0.0264 mol), K2CO3 (3.84 g, 0.028 mol), and sulfolane (28 g) were combined in a 200 mL 3-neck reaction vessel equipped with a mechanical stirrer, a Dean-Stark trap (wrapped in insulating cloth), an internal thermometer, and a nitrogen sparge tube. The resulting mixture was then slowly heated with stirring (45 min) to 210° C. and held at that temperature for 3.5 hours. Following build in molecular weight, the reaction mixture was then cooled to 95° C. and diluted with anhydrous NMP (about 20 g) and K2CO3 was added (3.83 g). Following stirring for 15 minutes, 2-chloroethyl vinyl ether (1.88 g, 0.0177 mol) was dissolved in anhydrous NMP (about 5 g) and slowly added to the reaction vessel via syringe. ...

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Abstract

The present invention relates to functionalized poly(aryl ether sulfones) polymers. The invention further relates to polymer compositions including the functionalized poly(aryl ether sulfone) polymers. Still further, the invention relates to lithographic methods to form three-dimensional (3D) objects that incorporate the aforementioned polymer compositions.

Description

RELATED APPLICATION[0001]This application claims priority to U.S. provisional application No. 62 / 319,936 filed Apr. 8, 2016, the whole content of the application being incorporated herein by reference for all purposes.TECHNICAL FIELD[0002]The present invention relates to functionalized poly(aryl ether sulfones) polymers. The invention further relates to polymer compositions including the functionalized poly(aryl ether sulfone) polymers. Still further, the invention relates to lithographic methods to form three-dimensional (3D) objects that incorporate the aforementioned polymer compositions.BACKGROUND ART[0003]Polymer compositions are commonly used to manufacture articles for the automotive and aerospace industries, for example as engine parts, as well as in the healthcare industry, for example as implantable devices and dental prostheses. These articles have to present good mechanical properties after fabrication, but they also have to retain a sufficient percentage of these proper...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C08L81/06B29C64/135
CPCC08L81/06B29C64/135B33Y70/00B33Y10/00C08G2650/40B29C64/106B29C64/124B33Y70/10C08G75/23
Inventor POLLINO, JOELJEOL, STEPHANE
Owner SOLVAY USA
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