| abstract |
Provided are a thermal insulating foam comprising thermal polymer having a plurality of closed cells and a gaseous composition contained in a plurality of said closed cells, said gaseous composition comprising trans-1-chloro-3,3,3-trifluoropropene and a second component selected from the group consisting of cyclopentane, isopentane, n-pentane and combinations of two or more of these, a pour-in-place foam panel and a thermal insulating article thereof. Also provided is a polyol premix for forming the polyurethane or polyisocyanurate pure-in-place foam panel comprising a blowing agent composition comprising trans-l-chloro-3,3,3-trifluoropropene and a second component selected from the group consisting of cyclopentane, isopentane, n-pentane and combinations of two or more of these. |