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Agglomerating nanoparticles

A technology of nanoparticles and particles, which is applied in the field of agglomerating nanoparticles to form larger aggregates, which can solve problems such as false triggering and abnormal changes in device pressure sensitivity

Active Publication Date: 2020-04-21
PERATECH HOLDCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These isolated points can create anomalous changes in pressure sensitivity of the device and problems that can lead to false triggers when formed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] • A millbase was formulated with a formulation of 900 grams (900g) of VA401 resin and 28 grams (28g) of FS10P particles.

[0069] • The formulation was mixed in a high speed mixer at 1600 revolutions per minute (1600 rpm) to produce a first mixture.

[0070] • Bead mill at a power of 750 watts (750W) to produce a second mixture.

[0071] • High speed mixing again at 1600 revolutions per minute (1600 rpm).

[0072] • The second mixture was filtered through a 10 micron (10 μm) stainless steel filter to obtain a millbase.

[0073] Thus, in this example, the prepared millbase contained 3% by weight (3 wt%) nanoparticles of the resin. In this way, the prepared millbase exhibited a higher loading of resin compared to conventional methods.

[0074] Figure 12

[0075] Figure 12 The process 203 for cutting the abrasive 109 to obtain a formulated mixture ready for printing is described in detail in . The stored grind 1009 is now cut by solvent 1201 to obtain a formulated...

Embodiment 2

[0078] • To obtain the formulated mixture, the filtered grind was mixed at high speed at 1600 revolutions per minute (1600 rpm) for one minute.

[0079] • Pour 25 grams (25g) of the grind into the container.

[0080] • Add 15 grams (15 g) of solvent ZV558 followed by 11.7 grams (11.7 g) of VA401 lacquer.

[0081] • Mix at high speed for 1 minute (1 min) at 3500 revolutions per minute (3500 rpm).

[0082] • Add 19 milligrams (19 mg) of dielectric particles under the tradename Aston Chemicals MST-547.

[0083] - Further high speed mixing at 3500 revolutions per minute (3500 rpm) for 1 minute (1 min).

[0084] After conditioning, it was found that the printed sensor did not suffer from any electrical short circuit failures. Thus, a more consistent electrical response is obtained. Furthermore, the material exhibits higher transparency and exhibits lower haze.

[0085] Figure 13

[0086] Figure 13 to Figure 15 A process 204 for forming a component is described. For deplo...

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Abstract

A method of agglomerating nanoparticles to form larger agglomerates is shown. The nanoparticles are mixed with a resin to form a first mixture (803) of agglomerates, having sizes over a range that includes agglomerates considered to be too large, suspended in the resin. A bead milling cylinder (802) produces a second mixture (808) with fewer large agglomerates. A filter (1001) removes the remaining large agglomerates. The resulting mill base is cut with a solvent before deployment.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to UK Patent Application 1714279.5, filed 6 September 2017, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to methods of agglomerating nanoparticles to form larger agglomerates. Background technique [0004] The process of agglomerating nanoparticles to form larger agglomerates is disclosed in the applicant's patent US9,546,859. The particles can be held in the resin so that the resin can be applied to the transparent substrate in a liquid state diluted with a solvent. Then, after the solvent has evaporated, a cover sheet can be placed on top of the dry resin layer to create the assembly. The assembly can then be configured as a transparent touchscreen in which the substrate and cover are separated by agglomerates smaller than 10 microns so that the agglomerates are barely visible to the naked eye. However, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/12G06F3/041G06F3/045H01C10/10H01B1/20
CPCC08J3/12G06F3/045H01C10/10H01C10/106B82Y30/00G06F3/0414B82B3/008C08J3/16C01G30/00C01P2002/52C01P2004/30C01P2004/64
Inventor 伊恩·卡里克保罗·乔纳森·劳克林
Owner PERATECH HOLDCO
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