Compositions and methods for use in three dimensional model printing
First Claim
1. A composition suitable for support in building a three dimensional object, said composition comprising:
- at least one curable component, at least one non-curable component, said non-curable component being a polyol or glycol compound, wherein none of said non-curable components is reactive with any of said curable components;
a surface additive for reducing surface tension, wherein said surface additive is added in a concentration that reduces surface tension of said composition to around 30 dynes/cm; and
a stabilizer;
wherein said composition has a first viscosity of 100-500 cps at a first temperature, wherein said first temperature is ambient temperature and a second viscosity of <
20 cps at a second temperature wherein said second temperature is higher than said first temperature;
wherein, after irradiation, said composition results in a solid, a semi solid or a gel type material, which is capable of dissolving or swelling upon exposure to water, to an alkaline or acidic water solution or to a water detergent solution.
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Accused Products
Abstract
Compositions for use in the manufacture of three-dimensional objects including compositions for use as a support and/or release material in the manufacture of the three-dimensional objects are provided. There is thus provided, in accordance with an embodiment of the present invention, a composition suitable for building a three-dimensional object. The compositions may include, inter alia, a curable component, having a functional group, wherein if the functional group is a polymerizable reactive functional group, then the functional group is a (meth)acrylic functional group, a photo-initiator, a surface-active agent and a stabilizer: wherein said composition has a first viscosity of about 50-500 cps at a first temperature, wherein said first temperature is ambient temperature, and a second viscosity lower than 20 cps at a second temperature wherein said second temperature is higher than said first temperature, wherein, after curing, the composition results in a solid form. There is thus provided, in accordance with another embodiment of the present invention, a composition suitable for support in building a three-dimensional object. The compositions may include, inter alia: a non-curable component, a curable component, wherein the non-curable component is not reactive with said curable component, a surface-active agent and a stabilizer, wherein said composition has a first viscosity of about 20-500 cps at a first temperature, wherein said first temperature is ambient temperature, and a second viscosity lower than 20 cps at a second temperature wherein said second temperature is higher than said first temperature, wherein, after irradiation, the composition results in a solid, a semi-solid or liquid material. A method for the preparation of a three-dimensional object by three-dimensional printing is provided in accordance with embodiments of the present invention. Embodiments of the present invention further provide a three-dimensional object prepared according to the methods of the invention.
36 Citations
39 Claims
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1. A composition suitable for support in building a three dimensional object, said composition comprising:
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at least one curable component, at least one non-curable component, said non-curable component being a polyol or glycol compound, wherein none of said non-curable components is reactive with any of said curable components;
a surface additive for reducing surface tension, wherein said surface additive is added in a concentration that reduces surface tension of said composition to around 30 dynes/cm; and
a stabilizer;
wherein said composition has a first viscosity of 100-500 cps at a first temperature, wherein said first temperature is ambient temperature and a second viscosity of <
20 cps at a second temperature wherein said second temperature is higher than said first temperature;
wherein, after irradiation, said composition results in a solid, a semi solid or a gel type material, which is capable of dissolving or swelling upon exposure to water, to an alkaline or acidic water solution or to a water detergent solution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 33)
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21. A composition suitable for support in building a three dimensional object, said composition comprising:
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at least one curable component, at least one non-curable component, said non-curable component being a non-water miscible compound, wherein none of said non-curable components is reactive with any of said curable components;
a surface additive for reducing surface tension, wherein said surface additive is added in a concentration that reduces surface tension of said composition to around 30 dynes/cm, and a stabilizer;
wherein said composition has a first viscosity of 100-500 cps at a first temperature, wherein said first temperature is ambient temperature and a second viscosity of <
20 cps at a second temperature wherein said second temperature is higher than said first temperature;
wherein, after irradiation, said composition results in a solid, a semi solid or a gel type material. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39)
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Specification
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- Resources
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Current AssigneeStratasys Incorporated
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Original AssigneeObjet Geometries
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InventorsLevy, Avi, Napadensky, Eduardo
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current714/738
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CPC Class CodesB29C 64/112 using individual droplets, ...B29C 64/40 Structures for supporting 3...B33Y 40/20 Post-treatment, e.g. curing...B33Y 70/00 Materials specially adapted...B33Y 80/00 Products made by additive m...B41M 3/006 Patterns of chemical produc...C08G 2/00 Addition polymers of aldehy...G03F 7/0037 Production of three-dimensi...
