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Composition comprising,1,1,3,3-pentafluorobutane, methylene chloride and trans-1,2-dichloroethylene

Патентный поиск по классам МПК-8:

Класс C11D7/50 растворители

Класс C23G5/028 содержащих галогензамещенные углеводороды


Классы МПК:C11D7/50 растворители
C23G5/028 содержащих галогензамещенные углеводороды
Автор(ы): Caron, Laurent (Sainte Foy les Lyon, FR)
Lallier, Jean-pierre (Saint Bonnet de Mure, FR)
Guilpain, Gerard (Brindas, FR)
Патентообладатель(и): Arkema France (Colombes, FR)
Приоритеты:
подача заявки
20.07.2005
публикация патента
26.10.2010

РЕФЕРАТ (Abstract)

The present invention relates to a composition based on 1,1,1,3,3-pentafluorobutane (HFC-365 mfc), that can be used in deposition, cleaning, degreasing and drying applications. Its object is also a fluid for cleaning internal heat-transfer systems. The object of the present invention is also a method for dissolving oil and for cleaning.
Полный текст Патента US 7820611 + PDF


ФОРМУЛА ИЗОБРЕТЕНИЯ (CLAIMS)

The invention claimed is:

1. Composition comprising 1,1,1,3,3-pentafluorobutane, methylene chloride and trans-1,2-dichloroethylene.

2. Composition according to claim 1, characterized in that it comprises 25 to 69% by weight of 1,1,1,3,3-pentafluorobutane, 25 to 69% by weight of methylene chloride and 1 to 40% by weight of trans-1,2-dichloroethylene.

3. Composition according to claim 1 characterized in that it comprises 40 to 57% by weight of 1,1,1,3,3-pentafluorobutane, 30 to 43% by weight of methylene chloride and 1 to 30% by weight of trans-1,2-dichloroethylene.

4. Method for dissolving oil at a temperature below 10° C., characterized in mixing a sufficient quantity of a composition according to claim 1 and oil at a temperature below about 10° C. to dissolve said oil.

5. Method according to claim 4, characterized in that the dissolution temperature lies between 0 and 8° C.

6. Fluid for cleaning internal heat-transfer systems, characterized by a composition according to claim 1.

7. Method for cleaning heat-transfer systems, characterized in adding a composition according to claim 1 to a heat transfer system and circulating said composition in said heat transfer system.

8. Method according to claim 4, characterized in that the dissolution temperature lies between 3 and 6° C.

9. Method for forming polyurethane foam characterized in mixing a polyol and an isocyanate with a foam blowing agent comprising a composition according to claim 1.

10. An aerosol propellant agent comprising a composition according to claim 1.


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