Method of removing grease, oil or flux from an article
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0696192
(1996-08-13)
|
우선권정보 |
JP-0207221
(1995-08-14); JP-0271583
(1995-10-19) |
발명자
/ 주소 |
- Kenroh Kitamura JP
- Michino Ikehata JP
- Masaaki Tsuzaki JP
|
출원인 / 주소 |
- Asahi Glass Company Ltd. JP
|
대리인 / 주소 |
Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
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인용정보 |
피인용 횟수 :
2 인용 특허 :
6 |
초록
A solvent composition comprising (a) dichloropentafluoropropane, (b) trans-1,2-dichloroethylene and (c) methanol, wherein the proportions of (a), (b) and (c) in the total amount of (a), (b) and (c) are from 57 to 75 wt %, from 20 to 35 wt % and from 5 to 8 wt %, respectively.
대표청구항
▼
1. A method for removing from an article, grease, oil, or flux, attached on said article comprising:
i) contacting said article with the solvent composition comprising:
(a) 61 to 67 wt. % dichloropentafluoropropane;
(b) 27 to 32 wt. % of trans-1,2-dichloroethylene; and
(c) 6 to 7 wt. % methanol,
1. A method for removing from an article, grease, oil, or flux, attached on said article comprising:
i) contacting said article with the solvent composition comprising:
(a) 61 to 67 wt. % dichloropentafluoropropane;
(b) 27 to 32 wt. % of trans-1,2-dichloroethylene; and
(c) 6 to 7 wt. % methanol,
wherein said dichloropentafluoropropane consists of 40 to 75 wt. % of 3,3-dichloro-1,1,1,2,2-pentafluoropropane and from 25 to 60 wt. % of 1,3-dichloro-1,1,2,2,3- pentafluoropropane,
ii) evaporating and isolating a solvent composition resulting from the contacting of step i) to obtain a solvent composition comprising:
(a) 61 to 67 wt. % dichloropentafluoropropane;
(b) 27 to 32 wt. % of trans-1,2-dichloroethylene; and
(c) 6 to 7 wt. % methanol,
wherein said dichloropentafluoropropane consists of 40 to 75 wt. % of 3,3-dichloro-1,1,1,2,2-pentafluoropropane and from 25 to 60 wt. % of 1,3-dichloro- 1,1,2,2,3-pentafluoropropane.
이 특허에 인용된 특허 (6)
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Magid Hillel (Buffalo NY) Eibeck Richard E. (Orchard Park NY) Van Der Puy Michael (Cheektowaga NY) Hollister Richard M. (Buffalo NY) Lavery Dennis M. (Springville NY) Wilson David P. (East Amherst NY, Azeotrope-like compositions of dichloropentafluoropropane and 1,2-dichloroethylene.
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Magid Hillel (Buffalo NY) Eibeck Richard E. (Orchard Park NY) Van Der Puy Michael (Cheektowaga NY) Hollister Richard M. (Buffalo NY) Lavery Dennis M. (Springville NY) Wilson David P. (East Amherst NY, Azeotrope-like compositions of dichloropentafluoropropane and 1,2-dichloroethylene.
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Samejima, Shunichi; Kitamura, Kenroh; Watanabe, Naohiro; Asano, Teruo; Kamimura, Toru; Morikawa, Shinsuke, Azeotropic or azeotropic-like composition of hydrochlorofluoropropane.
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Bivens Donald B. (Kennett Square PA) Connon Helen A. (Wilmington DE), Halocarbon blends for refrigerant use.
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Samejima Shunichi (Tokyo JPX) Kitamura Kenroh (Fujisawa JPX) Watanabe Naohiro (Chiba JPX) Asano Teruo (Yokohama JPX) Kamimura Toru (Ichihara JPX) Usami Yoko (Yokohama JPX), Hydrochlorofluorocarbon azeotropic or azeotropic-like mixture.
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Merchant Abid N. (Wilmington DE), Ternary azeotropic compositions of dichloropentafluoropropane and trans-1,2-dichloroethylene with methanol or ethanol or.
이 특허를 인용한 특허 (2)
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Thomas, Raymond Hilton Percival; Singh, Rajiv Ratna; Cook, Kane David; Knopeck, Gary Michael; Wedinger, Robert Scott, Cleaning processes using hydrofluorocarbon and/or hydrochlorofluorocarbon compounds.
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Hanada,Tsuyoshi; Tsuzaki,Masaaki, Solvent composition.
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