AZEOTROPE OR AZEOTROPE-LIKE COMPOSITIONS OF Z-1-CHLORO-2,3,3,3-TETRAFLUOROPROPENE (HCFO-1224yd(Z))

    公开(公告)号:US20220169816A1

    公开(公告)日:2022-06-02

    申请号:US17532510

    申请日:2021-11-22

    Inventor: Bin Yu Hang T. Pham

    Abstract: Heterogeneous azeotrope or azeotrope-like compositions comprising Z-1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd(Z)) and water which may include from about 47.0 wt. % to about 99.7 wt. % Z-1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd(Z)) and from about 0.3 wt. % to about 53.0 wt. % water and having a boiling point between about 13.0° C. and about 14.0° C. at a pressure of between about 14.0 psia and about 15.0 psia. The azeotrope or azeotrope-like compositions may be used to as blowing agents in the formation of foams.

    METHODS OF FORMING POLYOL PREMIXES AND FOAMABLE COMPOSITIONS AND FOAMS FORMED THEREFROM

    公开(公告)号:US20190085145A1

    公开(公告)日:2019-03-21

    申请号:US16135269

    申请日:2018-09-19

    Abstract: This invention relates to thermoset, thermal insulating panel, pour-in-place and pour-in-place foams having desirable and unexpectedly low thermal conductivity, and to compositions, method and systems which use and/or are used to make such foams comprising: (a) providing thermosetting foam forming component and a blowing agent for forming predominantly closed cells in the foam, wherein the blowing agent comprises: (i) cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzzm(Z)) and cyclopentane, with the HFO-1336mzzm(Z) and cyclopentane in the blowing agent together comprising at least about 50% by weight of the total of all components in the blowing agent and (ii) the weight ratio of HFO-1336mzzm(Z) to cyclopentane in the blowing agent is from about 45:55 to less than 68:32 and (b) forming foam from said provided foamable composition.

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