Hydrofluoro olefin propellant in a polyurethane foam composition
AssigneeIcp Construction, Inc.
InventorsAndrew P. Shinko, Anthony J. Taylor
Life of this patent
Estimating the term…
Abstract
A B-side component of a two component low pressure polyurethane foam, the B-side component includes: a fluoride ion scavenger; one or more polyols consisting of all polyether polyols and, if the fluoride ion scavenger is a polyol, the fluoride ion scavenger, and no polyester polyols; at least one silicone polyether surfactant; at least one flame retardant and/or plasticizer; a catalyst package comprising an amine catalyst; and an HFO propellant consisting of 1,3,3,3-tetrafluoropropene and no other HFO propellant. Water is in an amount of less than 1% by weight of the B-side prior to inclusion of the HFO propellant at the B-side.
Claims20
A B-side component of a two component low pressure polyurethane foam, the B-side component comprising:
- a fluoride ion scavenger;
- one or more polyols consisting of all polyether polyols and, if the fluoride ion scavenger is a polyol, the fluoride ion scavenger, and no polyester polyols;
- at least one silicone polyether surfactant;
- at least one flame retardant and/or plasticizer;
- a catalyst package comprising an amine catalyst;
- and
- an HFO propellant consisting of 1,3,3,3-tetrafluoropropene and no other HFO propellant,
- wherein water is in an amount of less than 1% by weight of the B-side prior to inclusion of the HFO propellant at the B-side.
A B-side component of a two component low pressure polyurethane foam, the B-side component comprising:
- an HFO propellant consisting of 1,3,3,3-tetrafluoropropene and no other HFO propellant glycerin as a fluoride-ion scavenger;
- one or more polyether polyols and no polyester polyols;
- at least one silicone polyether surfactant;
- at least one flame retardant and/or plasticizer;
- and
- a catalyst package comprising an amine catalyst,
- wherein the B-side component exhibits a catalytic decay ratio (gel) of less than 1.5 and a catalytic decay ratio (tack-free) of less than 1.5 after storage of the B-side component for at least twelve months, and
- wherein water is an amount of less than 1% by weight of the B-side prior to inclusion of the HFO propellant at the B-side.
A two-component low-pressure polyurethane foam kit, the kit comprising:
- an A-side component comprising at least one diisocyanate;
- and
- a B-side component comprising:
- a fluoride ion scavenger;
- one or more polyols consisting of all polyether polyols and, if the fluoride ion scavenger is a polyol, the fluoride ion scavenger, and no polyester polyols;
- at least one silicone polyether surfactant;
- at least one flame retardant and/or plasticizer;
- a catalyst package comprising an amine catalyst;
- and
- an HFO propellant consisting of 1,3,3,3-tetrafluoropropene and no other HFO propellant at one or both of the A-side component and the B-side component,
- wherein the kit is configured for low pressure dispensing.
Dependencies are inferred from the claim text.