PROPELLANTS AND EMULSIFICATION COMPOSITIONS

To provide a new type of aqueous-based microemulsion which does not require the use of an oil as a dispersed phase in a continuous aqueous phase to dissolve a propellant.SOLUTION: Provided is a stable micro-emulsion which comprises: (a) about 1 wt.% to about 20 wt.% of water; (b) a water-soluble, hy...

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1. Verfasser: MADAN PARVATIYAR
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a new type of aqueous-based microemulsion which does not require the use of an oil as a dispersed phase in a continuous aqueous phase to dissolve a propellant.SOLUTION: Provided is a stable micro-emulsion which comprises: (a) about 1 wt.% to about 20 wt.% of water; (b) a water-soluble, hydroxy-containing polymeric material in an amount from about 20 wt.% to about 70 wt.%; (c) at least one hydrotrope present in an amount from about 2 wt.% to about 15 wt.%; and (d) a propellant comprising trans-1,3,3,3-tetrafluoropropene (HFC-1234ze(E) or trans-HFO-1234ze), in an amount from about 5 wt.% to about 65 wt.%; where the weight percentages are based on the components (a)-(d), and where the water-soluble, hydroxy-containing polymeric material and the at least one hydrotrope are present in amounts effective to create a stable microemulsion of the propellant in the water or the water in the propellant.SELECTED DRAWING: None 【課題】噴射剤を溶解するための連続水相中の分散相としての油を使用する必要がない、新しいタイプの水性ベースのマイクロエマルションを提供する。【解決手段】(a)約1重量%~約20重量%の水と、(b)約20重量%~約70重量%の量の水溶性ヒドロキシ含有高分子材料と、(c)約2重量%~約15重量%の量で存在する少なくとも1種のヒドロトロープと、(d)約5重量%~約65重量%の量のトランス-1,3,3,3-テトラフルオロプロペン(HFC-1234ze(E)又はトランスHFO-1234ze)を含む噴射剤と、を含み、前記重量パーセントは成分(a)~(d)に基づくものであり、前記水溶性ヒドロキシ含有高分子材料及び前記少なくとも1種のヒドロトロープは、水中噴射剤、又は噴射剤中水の安定なマイクロエマルションを生成するのに有効な量で存在する、安定なマイクロエマルションを提供する。【選択図】なし