Three-dimensional printing

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United States of America Patent

PATENT NO 11577454
APP PUB NO 20210138725A1
SERIAL NO

16605140

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A three-dimensional printing system can include polymeric build material and jettable fluid(s). The polymeric build material can have an average particle size from 20 μm to 150 μm, a first melt viscosity, and a melting temperature from 75° C. to 350° C. In one example, the jettable fluid can include water, from 0.1 wt % to 10 wt % of electromagnetic radiation absorber, and from 10 wt % to 35 wt % of an organic solvent plasticizer. Contacting a first portion of a layer of the polymeric build material with the jettable fluid can provide an organic solvent plasticizer loading from 2 wt % to 10 wt % based on the polymeric build material content. The first melt viscosity of the polymeric build material at the first portion can be reduced and the melting temperature of the polymeric build material at the first portion can be decreased by 3° C. to 15° C.

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Patent Owner(s)

  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Erickson, Kristopher J Palo Alto, US 68 59
Hartman, Aja Palo Alto, US 36 23
Olubummo, Paul Palo Alto, US 11 4
Zhao, Lihua Palo Alto, US 146 524

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