Patent ID: 8618014

Claim:
A composition for use in making a polyurethane foam, the composition comprising: (a) a catalyst combination comprising (i) a gelling catalyst comprising at least one of a tertiary amine or a mono(tertiary amino) or bis(tertiary amino) urea derivative thereof; and (ii) a trimerization catalyst comprising a compound selected from the group consisting of TEDA propylene oxide 2-ethylhexanoic acid quat; 1,8-diazabicyclo[5.4.0]undec-7-ene, either alone or blocked with a phenol or a carboxylic acid; N-hydroxyalkyl quaternary ammonium carboxylate salts; N,Nâ€²,Nâ€³-tris(dimethylaminopropyl)hexahydrotriazine; alkali metal carboxylates and a combinations of any of these; (b) one or more cure accelerators selected from the group consisting of glycerol, trim ethylol propane, diglycerol, pentaerythritol, dipentaerythritol, and a combination of these; and (c) a blowing catalyst comprising a compound selected from the group consisting of pentamethyldiethylenetriamine, permethylated polyamine, branched polyamine, alkoxylated polyamine, permethylated triethylenetetramine, 2-[N-(dimethylaminoethoxyethyl)-N-methylamino)ethanol, aminopropyl-bis(aminoethyl)ether, bis(dimethylaminoethyl)ether, and a combination of these; and wherein the gelling catalyst, the trimerization catalyst, the blowing catalyst and the cure accelerator are present in the amounts as shown in wt %: Catalyst composition wt % Gelling catalyst 14-35 Trimerization catalyst 1.4-6 Blowing catalyst 0.8-4 Cure accelerator 55-83.8.