[특허]Methods and apparatus for depositing barrier coatings

Methods and apparatus for depositing barrier coatings 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B05D-003/06 B05D-007/22 B65D-023/02 B29D-022/00
출원번호	US-0196896 (1994-02-15)
발명자 / 주소	Thomas H. Ronald (Easton PA) Babacz Robert J. (Bethlehem PA) Newton Robert R. (Nazareth PA)
출원인 / 주소	Polar Materials Inc. (Martins Creek PA 02)
인용정보	피인용 횟수 : 65 인용 특허 : 0

초록 ▼

A barrier coating is formed on a polymeric article, such as on the interior of a thermoplastic container. An oxidizing gas is converted to a plasma in a plasma chamber remote from the treatment chamber. The resulting plasma-activated oxidizing species are delivered to the interior of the container. An organosilicon reactant vapor is separately but simultaneously delivered to the interior of the container so that the organosilicon vapor and oxidizing active species mix within the container. An electric field is also applied to the container, so that the reaction products are deposited under the influence of the electrical field to form the barrier coating.

대표청구항 ▼

A method of forming a barrier coating on a polymeric article comprising the steps of: (a) passing an oxidizing gas in a downstream direction through a plasma zone remote from said article and converting said oxidizing gas to a plasma in said plasma zone so that said plasma forms activated oxidizing gas species as it passes downstream from said plasma zone; (b) delivering said activated species to the vicinity of said article; (c) delivering an organosilicon vapor to the vicinity of said article separately from said activated species; (d) mixing said organosilicon vapor with said activated species in proximity to said article so that said organosilicon vapor reacts with said activated species while maintaining said mixed activates species and organosilicon vapor under subatmospheric pressure; and (e) applying an alternating electrical potential of about 10 v to about 5 Kv at a frequency between about 1 KHz and about 100 MHz, and at a power input of between about 0.05 watts/cm2 and about 10.0 watts/cm2 of article surface area to said mixed activated species and organosilicon vapor in proximity to said article so that reaction products formed from said mixed activated species and organosilicon vapor are deposited on said article under the influence of said alternating electrical potential and so that said deposited reaction products form a barrier coating on said polymeric article while maintaining said polymeric article at a temperature below the heat distortion temperature of the polymeric article, said barrier coating having at least one of i) permeance of oxygen of less than about 0.20 cc O2/100 in2-day-atm, ii) permeance of carbon dioxide of less than 1.0 cc CO2/100 in2-day-atm, or iii) permeance of water of less than 0.4 gm H2O/100 in2-day-atm.

이 특허를 인용한 특허 (65)

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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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Methods and apparatus for depositing barrier coatings 원문보기

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Methods and apparatus for depositing barrier coatings 원문보기

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