Blowing agents, foam premixes and foams containing halogenated olefin blowing agent and adsorbent
AssigneeHoneywell International Inc.
InventorsYIU KEUNG LING, DAVID J. WILLIAMS, MARY C. BOGDAN
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Abstract
The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to closed-celled, polyurethane and polyisocyanurate foams and methods for their preparation. Preferably, the foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a catalyst and an adsorbent material.
Claims20
A polyol premix composition comprising at least one blowing agent, a polyol, at least one surfactant, a catalyst, and an adsorbing agent, wherein the blowing agent comprises a hydrohaloolefin, and optionally a hydrocarbon, fluorocarbon, chlorocarbon, fluorochlorocarbon, halogenated hydrocarbon, CO2 or other gas generating material, or combinations thereof.
A method of forming polyol premix composition which comprises a combining a blowing agent, a polyol, a surfactant, a catalyst and an absorbing agent, wherein the blowing agent comprises a hydrohaloolefin, and optionally a hydrocarbon, fluorocarbon, chlorocarbon, fluorochlorocarbon, halogenated hydrocarbon, CO2 generating material, or combinations thereof.
A closed-cell foam formed from a polyol premix composition comprising at least one blowing agent, a polyol, at least one surfactant, a catalyst, and an adsorbing agent, wherein the blowing agent comprises a hydrohaloolefin, and optionally a hydrocarbon, fluorocarbon, chlorocarbon, fluorochlorocarbon, halogenated hydrocarbon, CO2 or other gas generating material, or combinations thereof, wherein said foam has an Accelerated Aging Delay (AGD) in cell collapse of at least one (1) day.
Dependencies are inferred from the claim text.