Polyurethane insulation foam composition comprising a stabilizing compound
AssigneeHuntsman International LLC
InventorsYangjun Cai, Lifeng Wu, Sachchida Singh, Yun-Shan Liu
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Abstract
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.
Claims12
A rigid polyurethane foam product produced by combining Components (i)-(viii) of a polyurethane insulation foam composition comprising:
- (i) 30 to 60 wt % of an aromatic isocyanate compound based on the total weight of the polyurethane insulation foam composition;
- (ii) 20 to 50 wt % of an isocyanate reactive compound based on the total weight of the polyurethane insulation foam composition;
- (iii) 0.25 to 2.5 wt % water based on the total weight of the polyurethane insulation foam composition;
- (iv) 0.5 to 4 wt % of a tertiary amine compound based on the total weight of the polyurethane insulation foam composition;
- (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) 2 to 10 wt % of a halogenated olefin blowing agent based on the total weight of the polyurethane insulation foam composition;
- and
- (vii) a stabilizing compound wherein the stabilizing compound comprises an un-alkoxylated polyhydroxy compound having 4 or more hydroxyl groups;
- and
- (viii) optionally, other additives;
- and
- 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).
A rigid polyurethane foam product produced by combining Components (i)-(viii) of a polyurethane foam composition comprising:
- (i) 30 to 60 wt % of an aromatic isocyanate compound based on the total weight of the polyurethane insulation foam composition;
- (ii) 20 to 50 wt % of an isocyanate reactive compound based on the total weight of the polyurethane insulation foam composition;
- (iii) 0.25 to 2.5 wt % water based on the total weight of the polyurethane insulation foam composition;
- (iv) 0.5 to 4 wt % of a tertiary amine compound based on the total weight of the polyurethane insulation foam composition;
- (v) 0.1 to 4 wt % of a hydrophilic carboxylic acid compound based on the total weight of the polyurethane insulation foam composition, wherein the hydrophilic carboxylic acid compound is 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) 2 to 10 wt % of a halogenated olefin blowing agent based on the total weight of the polyurethane insulation foam composition;
- and
- (vii) a stabilizing compound comprising erythritol, arabitol, xylitol, sorbitol, mannitol, isomalt, lactitol, maltitol, xylose, glucose, fructose, sucrose, trehalose, lactose, raffinose, cyclodextrin, maltodextrin, corn syrup, amylopectin, or combinations thereof;
- (viii) optionally, other additives;
- and
- wherein Component (vii) is present in the polyurethane insulation foam composition in an amount less than 10 micro-moles per 100 gm of the polyurethane foam composition.
Dependencies are inferred from the claim text.