US 12,258,459 B2
HydroFluoro olefin propellant in a polyurethane foam composition
Andrew P. Shinko, Uniontown, OH (US); and Anthony J. Taylor, Medina, OH (US)
Assigned to ICP CONSTRUCTION, INC., Andover, MA (US)
Filed by ICP CONSTRUCTION, INC., Andover, MA (US)
Filed on Sep. 10, 2021, as Appl. No. 17/471,660.
Application 17/471,660 is a continuation of application No. 16/125,052, filed on Sep. 7, 2018, abandoned.
Claims priority of provisional application 62/555,677, filed on Sep. 8, 2017.
Prior Publication US 2021/0403666 A1, Dec. 30, 2021
Int. Cl. C08J 9/14 (2006.01); C08G 18/16 (2006.01); C08G 18/18 (2006.01); C08G 18/22 (2006.01); C08G 18/24 (2006.01); C08G 18/32 (2006.01); C08G 18/40 (2006.01); C08G 18/42 (2006.01); C08G 18/48 (2006.01); C08J 9/228 (2006.01); C08K 3/08 (2006.01); C08K 5/053 (2006.01); C08L 75/04 (2006.01)
CPC C08J 9/143 (2013.01) [C08G 18/163 (2013.01); C08G 18/1816 (2013.01); C08G 18/225 (2013.01); C08G 18/246 (2013.01); C08G 18/3206 (2013.01); C08G 18/4018 (2013.01); C08G 18/4213 (2013.01); C08G 18/4812 (2013.01); C08G 18/4825 (2013.01); C08G 18/4829 (2013.01); C08J 9/146 (2013.01); C08J 9/228 (2013.01); C08K 3/08 (2013.01); C08K 5/053 (2013.01); C08L 75/04 (2013.01); C08G 18/18 (2013.01); C08G 2110/005 (2021.01); C08G 2110/0058 (2021.01); C08J 2203/162 (2013.01); C08J 2207/04 (2013.01); C08J 2475/06 (2013.01); C08J 2475/08 (2013.01); C08K 2003/0825 (2013.01); C08L 2203/14 (2013.01); C08L 2205/03 (2013.01)] 2 Claims
 
1. A two component low pressure polyurethane foam comprising:
an A-side comprising:
at least one diisocyanate, and
an HFO propellant; and
a B-side comprising:
approximately 30-50% by weight of the B-side of at least one polyester polyol;
approximately 35% or greater by weight of the B-side of at least one polyether polyol;
approximately 1-15% by weight of the B-side of a triol that comprises glycerin as a fluoride ion scavenger;
an amine catalyst;
a catalyst that includes an organotin catalyst; and
an HFO propellant; and
a catalytic decay ratio (gel) is <1.5;
a catalytic decay ratio (tack-free) is <1.5; and
water in an amount of less than 1% by weight of the B-side prior to inclusion of the HFO propellant at the B-side.