Patent ID: 9029430
Filing Date: 2015-05-12
Classification: C08G,C08J,C08L,C09K

Abstract:
1. A foamable composition comprising: (a) a foam forming agent comprising: (i) at least one thermoplastic for forming a thermal insulating foam, said thermoplastic consisting essentially of at least one polystyrene; and (ii) a blowing agent consisting essentially of 1,1,1,3-tetrafluoropropene (HFO-1234ze) and at least one co-blowing agent that is not HFO-1234ze, wherein said blowing agent comprises at least about 50% by weight of 1,1,1,3-tetrafluoropropene (HFO-1234ze), wherein said HFO-1234ze consists of trans-1,1,1,3-tetrafluoropropene (transHFO-1234ze), provided that said blowing agent of (ii) is the sole blowing agent in said foam forming agent.