Polyurethane insulation foam composition comprising a stabilizing compound
A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.
1 . A method of making a rigid polyurethane foam product from a polyurethane insulation foam composition comprising:
reacting one or more of the following reactive ingredients of the polyurethane insulation foam composition to form the rigid polyurethane foam product:
(i) an aromatic isocyanate compound;
(ii) an isocyanate reactive compound;
(iii) water;
(iv) a tertiary amine compound;
(v) a hydrophilic carboxylic acid compound selected from a monocarboxylic acid or a monocarboxylic acid blended with at least one compound selected from a hydroxyl-carboxylic acid, a hydroxyl-polycarboxylic acid, and an AGS acid;
(vi) a halogenated olefin blowing agent; and
(vii) a stabilizing compound wherein the stabilizing compound comprises an un-alkoxylated polyhydroxy compound having 4 or more hydroxyl groups;
(viii) optionally, other additives;
wherein Component (v) is present in the polyurethane insulation foam composition in an amount ranging from 0.2 to 4 equivalents of carboxyl group per equivalent of tertiary amines in Component (iv) and Component (vii) is present in an amount of less than 0.8 moles per mole of Component (v);
wherein a CT REACTIVITY SHIFT of the polyurethane insulation foam composition is less than or equal to 20 and a TFT REACTIVITY SHIFT is less than or equal to 4; and wherein the CT REACTIVITY SHIFT and the TFT REACTIVITY SHIFT of the polyurethane insulation foam composition is determined by using Formulas X and Y, respectively:
CT
REACTIVE
SHIFT
=
100
*
[
(
CT
79
-
CT
0
)
/
CT
0
]
Formula
X
wherein
CT 79 means a composition's CT as determined using the FOAM REACTIVITY TEST after the composition's B-Side comprising Components (ii) and (iii) has been aged at 40° C. in a closed, pressure-rated, glass container that was placed in an oven for 79 days,
CT 0 means a composition's CT as determined using the FOAM REACTIVITY TEST after the composition's B-Side comprising Components (ii) and (iii) has been aged at 40° C. for 0 days;
and
TFT
REACTIVE
SHIFT
=
100
*
[
(
TFT
79
-
TFT
0
)
/
TFT
0
]
Formula
Y
wherein
TFT 79 means a composition's TFT as determined using the FOAM REACTIVITY TEST after the composition's B-Side comprising Components (ii) and (iii) has been aged at 40° C. in a closed, pressure-rated, glass container that was placed in an oven for 79 days,
TFT 0 means a composition's TFT as determined using the FOAM REACTIVITY TEST after the composition's B-Side comprising Components (ii) and (iii) has been aged at 40° C. for 0 days.
2 . The method according to claim 1 , wherein the polyisocyanate comprises wherein the polyisocyanate comprises diphenylmethane diisocyanate, polyphenylene polymethylene polyisocyanate, tolylene diisocyanate, 1,5-naphtalenediisocyanate, p-phenylenediisocyanate, tolidine diisocyanate, or combinations thereof.
3 . The method according to claim 1 , wherein Component (ii) comprises a polyether polyol, polyester polyol, hydroxyl-terminated polythioethers, polyamides, polyesteramides, polycarbonates, polyacetals, polyolefins, polyamines, polythiols, polysiloxanes, glycols, or combinations thereof.
4 . The method according to claim 1 , wherein Component (iv) further comprises wherein Component (iv) further comprises of bis-(2-dimethylaminoethyl)ether; N,N, N′-trimethyl -N′-hydroxyethylbisaminoethylether; N,N-dimethylethanolamine; N,N-dimethylcyclohexylamine;
N-methyldicyclohexylamine; benzyldimethylamine; pentamethyldiethylenetriamine; N,N,N′,N″,N″-pentamethyldipropylenetriamine; N′-(3-(dimethylamino)propyl-N,N-dimethyl-1,3-propanediamine;
2-(2-dimethylaminoethoxy)ethanol; N,N, N′-trimethylaminoethyl-ethanolamine; 2-[N-(dimethylaminoethoxyethyl)-N-methylamino] ethanol; N,N, N′-trimethyl-N′-3-aminopropyl-bis(aminoethyl) ether; N,N,N′,N′-tetramethylenediamine; N-ethylmorpholine; 2,2′dimorpholinodiethylether; 1,3,5-tris (3-(dimethylamino)propyl)-hexahydro-s-triazine; 1,2-dimethlyimidazol; N-methyl-, N′-(2-dimethylamino)ethyl-piperazine; N,N-dimethylaminoethyl morpholine and triethylene diamine combinations thereof.
5 . The method according to claim 1 , wherein the hydrophilic carboxylic acid compound is a monocarboxylic acid selected from formic acid, acetic acid, or a combination thereof.
6 . The method according to claim 1 , wherein Component (vi) comprises trifluoropropenes, tetrafluoropropenes, pentafluoropropenes, chlorotrifloropropenes, chlorodifluoropropenes, chlorotrifluoropropenes, chlorotetrafluoropropenes, hexafluorobutenes, or combinations thereof.
7 . The method according to claim 1 , wherein Component (vi) comprises trans-1-chloro-3,3,3-trifluoropropene; (z)-1, 1, 1,4,4,4-hexafluorobut-2-ene; trans-1,3,3,3-tetrafluoroprop-1-ene or combinations thereof.