Radiation curable compositions for additive fabrication

A technology for additive manufacturing and composition, applied in the field of thermosetting compositions, which can solve problems such as poor curing speed and brittleness

Pending Publication Date: 2021-02-02
コベストロネザーランズビーヴィー
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, they exhibit poor cure speed and comparable brittleness when compared to all-acrylate containing systems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Radiation curable compositions for additive fabrication
  • Radiation curable compositions for additive fabrication
  • Radiation curable compositions for additive fabrication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0155] These examples illustrate embodiments of additively manufactured radiation curable compositions useful in the present invention. Table 1 describes the various components of the radiation curable composition for additive manufacturing used in this example. Meanwhile, Table 2A and Table 2B describe the various subcomponents used to synthesize the oligomers mentioned in Table 1 and used in the examples of the present invention. Table 3 lists the compositional composition of each of the formulations evaluated here. Finally, Table 4A, Table 4B, and Table 4C describe various performance characteristics of one or more of the formulations used herein.

[0156] Table 1

[0157]

[0158]

[0159] Table 2A - Oligomer Reactants

[0160]

[0161]

[0162] Table 2B - Oligomer Reactants

[0163] Amounts are listed in equivalents unless otherwise noted

[0164]

[0165] Synthesis of oligomers

[0166] The oligomers used in the following examples were synthesized acco...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
yield stressaaaaaaaaaa
bending strengthaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to view more

Abstract

Described herein are thermoset compositions and kits of compositions suitable for use in additive fabrication processes including high concentrations of urethane methacrylate oligomers having at leastone polymerizable group, and a number average molecular weight from 750 to 4000 g / mol, an effective quantity of a monofunctional reactive diluent monomer, a defined concentration of a network building agent having a molecular weight that is lower than the urethane methacrylate oligomer, optionally a photoinitiator, and optionally, additives. Also disclosed are methods of creating three-dimensional parts via additive fabrication processes utilizing urethane methacrylate oligomer-centric compositions, wherein various exposure irradiances, cure temperatures, and oxygen content levels are prescribed, as well as the articles cured therefrom.

Description

technical field [0001] The present invention relates to thermosetting compositions containing methacrylate oligomers and methods for producing three-dimensional objects by additive manufacturing techniques, as well as articles produced therefrom. [0002] Cross References to Related Applications [0003] This application claims priority to U.S. Provisional Application No. 62 / 660621, filed April 20, 2018, which is hereby incorporated by reference in its entirety as if fully set forth herein. Background technique [0004] Additive manufacturing processes for producing three-dimensional objects are well known. The additive manufacturing process utilizes computer-aided design (CAD) data of objects to build three-dimensional parts. These three-dimensional parts can be formed from liquid resins, powders or other materials. [0005] Various types of materials are used in the additive manufacturing process. Typically, thermoplastic materials are used in processes such as fused ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/00B33Y70/00B33Y70/10G03F7/027
CPCG03F7/0037G03F7/027B33Y70/00C08F290/067G03F7/004G03F7/028C08G18/48C08G18/4277C08F2/48B33Y10/00B33Y80/00B29C64/129C08G2115/00C08G18/4833
Inventor 苏丹瓦·戈文达拉扬马尔科·马库斯·马特乌斯·德里森
Owner コベストロネザーランズビーヴィー
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap