[특허]Method of forming a three-dimensional object comprising additives imparting reduction of shrinkage to photohardenable co

[미국특허] Method of forming a three-dimensional object comprising additives imparting reduction of shrinkage to photohardenable co 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G03C-009/08 G03F-007/027 B05D-003/06
출원번호	US-0341868 (1989-04-21)
발명자 / 주소	Vassiliou Eustathios (Newark DE) Grossa Mario (Dreieich DEX)
출원인 / 주소	E. I. Du Pont de Nemours and Company (Wilmington DE 02)
인용정보	피인용 횟수 : 20 인용 특허 : 0

초록

Method of forming an integral three-dimensional object from a photohardenable liquid composition with low shrinkage containing a linear polymer which is soluble in the liquid but separates into a separate phase upon photohardening.

대표청구항 ▼

A method for accurately fabricating an integral three dimensional object from successive layers of a photohardenable liquid composition comprising the steps of: (a) forming a layer of a liquid photohardenable liquid; (b) photohardening at least a portion of the layer of photohardenable liquid by exposure to actinic radiation; (c) introducing a new layer of photohardenable liquid onto the layer previously exposed to actinic radiation; and (d) photohardening at least a portion of the new liquid layer by exposure to actinic radiation, with the requirement that the photohardenable composition comprises an ethylenically unsaturated monomer, a photoinitiator, and a linear polymer mixed therein selected from the group consisting of polystyrene, substituted polystyrene, alpha alkyl polystyrene, beta alkyl polystyrene, substituted alpha alkyl polystyrene, substituted beta alkyl polystyrene, and mixture thereof, the linear polymer being soluble in the composition but separating into a separate phase upon photohardening the composition, the linear polymer occupying a first volume in the absence of all other components of the composition, the photohardenable composition occupying a second volume in the absence of the linear polymer mixed therein, and the photohardenable composition containing the linear polymer occupying a third volume, wherein the third volume is smaller than the sum of the first volume and the second volume.

이 특허를 인용한 특허 (20) 인용/피인용 타임라인 분석

Menhennett Herbert E. ; Leonard Jon N. ; Larsen John R. ; Brown Robert B. ; Ferreira Manual M. ; Barlage ; III William B. ; Kirschman Charles F., Apparatus and method for dispensing build material to make a three-dimensional article.
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Menhennett Herbert E. (Easley SC) Brown Robert B. (Duncan SC), Apparatus and method for making three-dimensional articles using bursts of droplets.
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Brown Robert B. ; Kirschman Charles F. ; Menhennett Herbert E., Apparatus and method for thermal normalization in three-dimensional article manufacturing.
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Brown Robert B. (Duncan SC) Kirschman Charles F. (Central SC), Apparatus for making a three-dimensional article.
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Barlage ; III William Berdell ; Ferreira Manuel Michael, Apparatus for making three-dimensional articles including moving build material reservoir and associated method.
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Hickerson,Kevin P.; Bedal,Bryan; Diephuis,Richard J., Apparatus for three dimensional printing using image layers.
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Napadensky, Eduardo; Brusilovsky, David, Compositions and methods for use in three dimensional model printing.
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Bredt, James F.; Anderson, Timothy; Russell, David B.; Clark, Sarah L.; DiCologero, Matthew J., Material systems and methods of three-dimensional printing.
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Napadensky, Eduardo, Method of making a composite material by three-dimensional ink-jet printing.
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Bredt, James F.; Clark, Sarah L.; Uy, Evert F.; DiCologero, Matthew J.; Anderson, Timothy; Tarkanian, Michael; Williams, Derek X., Methods and compositions for three-dimensional printing of solid objects.
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Napadensky, Eduardo, Methods for three dimensional model printing.
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Takeo, Yuko; Otsuki, Naoya, Photocurable resin composition, cured product of same and method for producing cured product.
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Cowperthwaite George F. ; Shaw Gary R. ; Sheariss Susan C., Radiation-curable, moldable material, methods for curing it and molded articles obtained therefrom.
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Vinson Wayne A. (Valencia CA) Little Frank F. (Lakeview CA) Schwarzinger Wolfgang (Moorpark CA) Lewis Mark A. (Valencia CA) Uziel Yehoram (Northridge CA) Pitlak Robert T. (Westlake Village CA) Spence, Rapid and accurate production of stereolithographic parts.
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Bredt, James F.; Clark, Sarah L.; Williams, Derek X.; DiCologero, Matthew J., Thermoplastic powder material system for appearance models from 3D printing systems.
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Bredt,James F.; Anderson,Timothy C.; Russell,David B., Three dimensional printing material system and method.
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Williams, Derek X., Three dimensional printing material system and method using peroxide cure.
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Giller, Eugene; Williams, Derek X., Three dimensional printing material system and method using plasticizer-assisted sintering.
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Giller, Eugene; Williams, Derek X., Three dimensional printing material system and method using plasticizer-assisted sintering.
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Alam, Amir; Bredt, James F.; Clark, Nanette; Flynn, Mary; Sprauer, Jean; Williams, Derek X., Three-dimensional printing material system with improved color, article performance, and ease of use.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Method of forming a three-dimensional object comprising additives imparting reduction of shrinkage to photohardenable co 원문보기