IP Library › Granted Patent US 12668544
Granted Patent B2
US 12668544 · App. 17/619,301 · Granted Jun 30, 2026

Paste for ceramic 3D shaping and method for manufacturing three-dimensional shaped object

Inventors: Noriaki Masuda (Otsu, JP); Masayuki Itadani (Otsu, JP)
Assignee: NIPPON ELECTRIC GLASS CO., LTD.
C04B35/117B01D39/2006B01D39/2072B28B1/001B28B11/243B33Y10/00B33Y70/10C04B35/6269C04B35/63424C04B35/638C04B35/64C04B38/067B01D2239/10B33Y80/00C04B2235/3217C04B2235/365C04B2235/6026
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Quick Facts
Patent No.
US 12668544
App. No.
17/619,301
Granted
Jun 30, 2026
Kind
B2
Abstract

A paste for ceramic 3D shaping according to the present invention is a paste for ceramic 3D shaping containing a curable resin and inorganic particles, in which the inorganic particles contain ceramic particles and glass particles.

Claims (17)

1 . A paste for ceramic 3D shaping comprising:

a curable resin and

inorganic particles,

wherein the inorganic particles comprise ceramic particles and glass particles,

wherein the ceramic particles comprise titanium-oxide based ceramic particles,

wherein an average particle diameter of the ceramic particles is 0.01 μm to 0.49 μm, and

wherein the titanium-oxide based ceramic particles/(the ceramic particles+the glass particles) is, in volume ratio, 0.001 to 0.1.

2 . The paste for ceramic 3D shaping according to claim 1 , wherein the glass particles/(the ceramic particles+the glass particles) is, in volume ratio, 0.01 to 0.5.

3 . The paste for ceramic 3D shaping according to claim 1 , wherein a content of the inorganic particles is 15 vol % or more.

4 . The paste for ceramic 3D shaping according to claim 1 , wherein a content of the ceramic particles is 10 vol % or more.

5 . The paste for ceramic 3D shaping according to claim 1 , wherein the glass particles have a softening point of 550° C. to 1200° C.

6 . The paste for ceramic 3D shaping according to claim 1 , wherein a glass composition of the glass particles comprises, in mass %, 10% to 60% of SiO 2 , 0 to 15% of Al 2 O 3 , 0 to 50% of B 2 O 3 , 0 to 40% of ZnO, 0 to 30% of BaO, 0 to 25% of CaO, 0 to 20% of SrO, 0 to 7% of Na 2 O, 0 to 2% of K 2 O, 0 to 5% of P 2 O 5 , 0 to 3% of ZrO, and 0 to 5% of F 2 .

7 . The paste for ceramic 3D shaping according to claim 1 , wherein the curable resin is a photo-curable resin.

8 . A method for manufacturing a three-dimensional shaped object using the paste for ceramic 3D shaping according to claim 1 , the method comprising:

irradiating the paste for ceramic 3D shaping with an active energy ray to cure the curable resin to obtain a precursor; and

heat-treating the precursor to remove the curable resin and sintering the ceramic particles and the glass particles.

9 . The paste for ceramic 3D shaping according to claim 1 , wherein the titanium-oxide based ceramic particles comprises at least one of titania, barium titanate, and strontium titanate.