ABS part material for electrophotography-based additive manufacturing
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G03G-009/08
G03G-009/097
G03G-009/087
출원번호
US-0944472
(2013-07-17)
등록번호
US-9023566
(2015-05-05)
발명자
/ 주소
Martin, Trevor I.
출원인 / 주소
Stratasys, Inc.
대리인 / 주소
Westman Champlin & Koehler, P.A.
인용정보
피인용 횟수 :
10인용 특허 :
46
초록▼
A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material including a composition having a copolymer (including acrylonitrile units, butadiene units, and aromatic units), a charge control agent, and a heat absorber. The par
A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material including a composition having a copolymer (including acrylonitrile units, butadiene units, and aromatic units), a charge control agent, and a heat absorber. The part material is provided in a powder form having a controlled particle size, and is configured for use in the electrophotography-based additive manufacturing system having a layer transfusion assembly for printing the three-dimensional parts in a layer-by-layer manner.
대표청구항▼
1. A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material comprising: a composition comprising: a copolymer comprising acrylonitrile units, polybutadiene units, and aromatic units;a charge control agent; anda heat absorb
1. A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material comprising: a composition comprising: a copolymer comprising acrylonitrile units, polybutadiene units, and aromatic units;a charge control agent; anda heat absorber;wherein the part material is provided in a powder form having a D50 particle size ranging from about 5 micrometers to about 30 micrometers; and wherein the part material is configured for use in the electrophotography-based additive manufacturing system having a layer transfusion assembly for printing the three-dimensional parts in a layer-by-layer manner. 2. The part material of claim 1, wherein the aromatic units comprise styrene units. 3. The part material of claim 2, wherein the copolymer comprises an acrylonitrile-butadiene-styrene (ABS) copolymer. 4. The part material of claim 1, wherein the D50 particle size ranges from about 10 micrometers to about 20 micrometers. 5. The part material of claim 1, wherein the powder form also has a D90/D50 particle size distribution and a D50/D10 particle size distribution each ranging from about 1.00 to about 1.40. 6. The part material of claim 1, wherein the charge control agent is selected from the group consisting of chromium oxy carboxylic acid complexes, zinc oxy carboxylic acid complexes, aluminum oxy carboxylic acid complexes, and mixtures thereof. 7. The part material of claim 1, wherein the charge control agent constitutes from about 0.1% by weight to about 5% by weight of the part material. 8. The part material of claim 1, wherein the heat absorber constitutes from about 0.5% by weight to about 10% by weight of the part material. 9. The part material of claim 1, and further comprising a flow control agent constituting from about 0.1% by weight to about 10% by weight of the part material. 10. A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material comprising: a composition comprising: a copolymer comprising acrylonitrile units, polybutadiene units, and aromatic units;a charge control agent constituting from about 0.1% by weight to about 5% by weight of the part material;a flow control agent constituting from about 0.1% by weight to about 10% by weight of the part material; anda heat absorber constituting from about 0.5% by weight to about 10% by weight of the part material;wherein the part material is provided in a powder form having a D50 particle size ranging from about 5 micrometers to about 30 micrometers, and D90/D50 particle size distribution and a D50/D10 particle size distribution each ranging from about 1.00 to about 1.40; andwherein the part material is configured for use in the electrophotography-based additive manufacturing system having a layer transfusion assembly for printing the three-dimensional parts in a layer-by-layer manner. 11. The part material of claim 10, wherein the part material is formulated, at least in part, with a limited coalescence process. 12. The part material of claim 10, wherein the D50 particle size ranges from about 10 micrometers to about 20 micrometers. 13. The part material of claim 10, wherein the copolymer has a glass transition temperature ranging from about 100° C. to about 115° C. 14. The part material of claim 10, wherein the charge control agent is selected from the group consisting of chromium oxy carboxylic acid complexes, zinc oxy carboxylic acid complexes, aluminum oxy carboxylic acid complexes, and mixtures thereof.
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