摘要:
Various uses of fluorinated olefin having an MIR value of less than ethane, in combination with one or more other components, including other fluoroalkenes, hydrocarbons; hydrofluorocarbons (HFCs), ethers, alcohols, aldehydes, ketones, methyl formate, formic acid, water, trans-1,2-dichloroethylene, carbon dioxide and combinations of any two or more of these, in a variety of applications, including as blowing agents, are disclosed.
摘要:
A thermal insulating foam comprising a plurality of polymeric cells and a composition contained in at least one of said cells, said composition comprising at least one blowing agent comprising 1-chloro-3,3,3-trifluoropropene.
摘要:
Provided are foam blowing agents comprising one or more chlorofluoroolefins selected from 1,2-dichloro-1,2-difluoroethene, 3,3-dichloro-3-fluoropropene, 2-chloro-1,1,1,3,4,4,4-heptafluoro-2-butene, and 2-chloro-1,1,1,4,4,4-hexafluoro-2-butene, as well as foams produced therefrom.
摘要:
The present invention provides methods of producing polyurethane and polyisocyanurate foams comprising reacting and foaming a mixture of ingredients that react to form a polyurethane or polyisocyanurate foam in the presence of a catalyst solution comprising a catalyst solvent and about 60 wt% or less, based on the total weight of the catalyst solution, of alkali metal salt. Also provided are foams produced via the methods of the present invention.
摘要:
Disclosed are low k-factor foams and methods of producing such foams. The methods comprise cooling high boiling blowing agent compounds to low temperatures and in introducing such cooled, high boiling blowing agents to the reaction mixture from which the foam is made.
摘要:
A composition which is a blowing agent which comprises from about 75% to about 90% by weight trans-1,3,3,3-tetrafluoropropene, from about 1% to about 15% by weight cis-1,3,3,3-tetrafluoropropene, and from about 1% about 15% by weight 1,1,3,3,3-pentafluoropropane.
摘要:
Various uses of fluoroalkenes, including tetrafluoropropenes, particularly (HFO-1234) in a variety of applications, including as blowing agents are disclosed, particularly in combination with one or more fluorinated ethers.
摘要:
The present invention provides compositions comprising pentafluorobutane, a butane and optionally water. The present invention further provides for refrigerants, blowing agents, foam compositions, polyol premixes, closed-cell foams, sprayable compositions, and the like, comprising the present composition.