EN SAMMANSAETTNING BASERAD PAO 1,1,1,3,3-PENTAFLUOROBUTAN OCH METANOL FOER RENGOERING OCH / ELLER TORKNING AV SOLIDA YTOR.
Номер патента: FI921983A0
Опубликовано: 30-04-1992
Автор(ы): Pascal Michaud
Принадлежит: Atochem Elf Sa
Опубликовано: 30-04-1992
Автор(ы): Pascal Michaud
Принадлежит: Atochem Elf Sa
Реферат: To replace cleaning compositions based on 1,1,2-trichloro-1,2,2-trifluoroethane (F113), the invention proposes a composition comprising, by weight, 93 to 99% of 1,1,1,3,3-pentafluorobutane (F365 mfc) and 7 to 1% of methanol. These two compounds form a positive azeotrope (b.p.=36.5 DEG C. at normal pressure). The composition, optionally stabilized, can be used for the cleaning and/or drying of solid surfaces, in particular for the removal of flux from printed circuits and for degreasing mechanical parts.
Alkylglykosid, dess anvaendning foer rengoering samt komposition foer detta aendamaal
Номер патента: SE9300954D0. Автор: *Johansson Ingegaerd. Владелец: Berol Nobel AB. Дата публикации: 1993-03-23.