[특허]Actinic activation shaping system and method

Actinic activation shaping system and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-031/00
출원번호	US-0904023 (1992-06-25)
발명자 / 주소	Natter Marc D. (Honatech Inc. 185 Riverdale Ave. Yonkers NY 10705)
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

The three dimensional configuration of an article is generated from a plurality of sheets of polymer material having a base resin constituent, a reactive diluent constituent and a reaction modifying constituent which effects a latent change in chemical reactivity of the polymer material in an area of each sheet imaged with actinic radiation in the configuration of an incremental heighth of the article, successive sheets are exposed to actinic radiation corresponding to the configuration of successive incremental planar heighths of the article and are stacked in a matrix. The imaged areas of all sheets are thereafter simultaneously cured with heat or aging, the configuration of the article is separated from the remainder of the matrix by altering the dimensional stability of the uncured polymer material. The sheets may be initially positioned on a carrier web for transport through an apparatus for constructing the shape of an article. The apparatus includes an imaging station wherein successive sheets are exposed to actinic radiation and a stacking station wherein exposed sheets are stripped from the carrier web and placed in a stack to form the matrix.

대표청구항 ▼

A method of forming the three dimensional configuration of an article from a plurality of sheets of polymer material, the thickness of each sheet corresponding to an incremental heighth of the article, the method comprising: a) facilitating the curing of at least a portion of the polymer material of each sheet by exposing each sheet to radiation from an actinic energy source, the radiation being configured in a pattern corresponding to said incremental heighth of the article; b) stacking successive sheets over previously exposed sheets to form a matrix; c) segregating the shape of the article from the matrix by exposing the entire matrix to an energy source which is not configured in a pattern to cure the portions of the polymer material whose curing has been facilitated and thereafter; d) simultaneously removing from all of the sheets which comprise the matrix, the portions of each sheet which do not comprise the configuration of the article. A method of forming the three dimensional configuration of an article, the method comprising the steps of: a) providing a plurality of sheets of polymer material, the thickness of each sheet corresponding to an incremental heighth of the article, b) providing means for exposing an actinic radiation image patterned to correspond with the configuration of an incremental heighth of the article on a sheet of the plurality, c) exposing actinic radiation images patterned to correspond with configurations of successive incremental heighths of the article on successive sheets of the plurality to effect a change of chemical reactivity on each of the successive sheets corresponding to the patterned images exposed on each sheet, d) providing means for stacking successive sheets of the plurality on previously exposed sheets to form a matrix, e) providing an unpatterned energy source for segregating the configuration of the article from the matrix by effecting a reactive change in the molecular structure of the polymer material of each of the sheets which comprise the matrix as a function of the differential in the chemical reactivity between the exposed and unexposed portions of each sheet, f) segregating the configuration of the article from the matrix by effecting a reactive change in the molecular structure of the polymer material of each of the sheets as a function of the differential in chemical reactivity by exposing the matrix to the unpatterned energy source, and g) providing means for separating the segregated configuration of the article from the matrix by altering the dimensional stability of the polymer material as a function of the changed molecular structure. A method of forming the three-dimensional configuration of an article from a plurality of sheets of polymer material, the thickness of each sheet corresponding to an incremental heighth of the article, the method comprising: (a) facilitating the curing of at least a portion of the polymer material of each sheet by exposing each sheet to actinic radiation configured in the shape of an incremental heighth of the article, (b) stacking successive exposed sheets over previously exposed sheets to form a matrix, (c) curing the portions of the polymer material whose curing has been facilitated to segregate the shape of the article from the matrix, and (d) simultaneously removing from all of the sheets which comprise the matrix, the portions of each sheet which do not comprise the configuration of the article. A method of forming the three dimensional configuration of an article, the method comprising the steps of: a) providing a plurality of sheets of polymer material, the thickness of each sheet corresponding to an incremental heighth of the article, b) exposing actinic radiation images patterned to correspond with configurations of successive incremental heighths of the article on successive sheets of the plurality to effect a change of chemical reactivity on each of the successive sheets corresponding to the patterned images exposed on each sheet, c) stacking successive sheets of the plurality on previously exposed sheets to form a matrix, d) segregating the configuration of the article from the matrix by effecting a reactive change in the molecular structure of the polymer material of each of the sheets which comprise the matrix as a function of the differential in the chemical reactivity between the exposed and unexposed portions of each sheet, and e) separating the segregated configuration of the article from the matrix by altering the dimensional stability of the polymer material as a function of the changed molecular structure.

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