Polyurethane foam composition comprising an aromatic polyester polyol compound and products made therefrom

Patent metadata

Field	Value
Publication number	US-12252578-B2
Application number	US-202017631016-A
Country	US
Kind code	B2
Filing date	Aug 5, 2020
Priority date	Aug 9, 2019
Publication date	Mar 18, 2025
Grant date	Mar 18, 2025

Abstract

A polyurethane foam composition comprising: (a) an isocyanate compound; (b) one or more isocyanate reactive compounds at least one of the isocyanate reactive compounds comprises an aromatic polyester polyol compound comprising an imide moiety wherein the aromatic polyester polyol is the reaction product of: (i) a cyclic anhydride compound; (ii) a phthalic acid based compound, (iii) a primary amine compound, (iv) an aliphatic diol compound; (v) optionally, a high functionality, low molecular weight polyether polyol compound; (vi) optionally, a hydrophobic compound; and wherein the weight ratio of Component (i) to Component (ii) is from 1:24 to 24:1; and wherein the aromatic polyester polyol is liquid at 25° C. and comprises a hydroxy value ranging from about 30 to about 600; and (c) a blowing agent.

First claim

What is claimed is:

1. A polyurethane foam composition comprising:
an isocyanate compound;
one or more isocyanate reactive compounds at least one of the isocyanate reactive compounds comprises an aromatic polyester polyol compound comprising an imide moiety wherein the aromatic polyester polyol is the reaction product of:
(i) a cyclic anhydride compound comprising Structure (1), Structure (2), or combinations thereof;

wherein X is a cyclic anhydride moiety, OH, or COOH, which is attached directly to the structure or through R which is an aromatic ring, aliphatic ring, aliphatic chain radical each containing from 1 through 12 carbon atoms with or without alkyl branches, and with or without hetero atoms comprising, O, N, and/or S and n is an integer from 0 through 1;
(ii) a phthalic acid based compound,
(iii) a primary amine compound,
(iv) an aliphatic diol compound;
(v) optionally, a high functionality, low molecular weight polyether polyol compound;
(vi) optionally, a hydrophobic compound; and
wherein the weight ratio of Component (i) to Component (ii) is from 1:24 to 24:1; and wherein the aromatic polyester polyol is liquid at 25° C. and comprises a hydroxy value ranging from about 30 to about 600; and

a blowing agent.

2. The polyurethane foam composition according to claim 1 , wherein the viscosity of the aromatic polyester polyol compound comprising an imide moiety ranges from about 200 to about 150,000 centipoises at 25° C.

3. The polyurethane foam composition according to claim 1 , wherein the acid value of the aromatic polyester polyol compound comprising an imide moiety ranges from about 0.1 mg of KOH/g to about 10 mg of KOH/g.

4. The polyurethane foam composition according to claim 1 , wherein the aromatic polyester polyol compound comprising an imide moiety does not comprise a solvent.

5. The polyurethane foam according to claim 1 , wherein the polyurethane foam is applied to a surface of a roofing, wall, pipe, or storage tank assembly.

6. A method of forming a polyurethane foam product comprising:
reacting, in the presence of a blowing agent, a reactive mixture comprising an isocyanate compound and one or more isocyanate reactive compounds at least one of the isocyanate reactive compounds comprises an aromatic polyester polyol compound comprising an imide moiety wherein the aromatic polyester polyol is the reaction product of:
(i) a cyclic anhydride compound comprising Structure (1), Structure (2), or combinations thereof;
Structure (1)

Structure (2)

wherein X is a cyclic anhydride moiety, OH, or COOH, which is attached directly to the structure or through R which is an aromatic ring, aliphatic ring, aliphatic chain radical each containing from 1 through 12 carbon atoms with or without alkyl branches, and with or without hetero atoms comprising, O, N, and/or S and n is an integer from 0 through 1;
(ii) a phthalic acid based compound,
(iii) a primary amine compound,
(iv) an aliphatic diol compound;
(v) optionally, a high functionality, low molecular weight polyether polyol compound;
(vi) optionally, a hydrophobic compound; and
wherein the weight ratio of Component (i) to Component (ii) is from 1:24 to 24:1; and wherein the aromatic polyester polyol is liquid at 25° C. and comprises a hydroxy value ranging from about 30 to about 600.

7. The method according to claim 6 , wherein the viscosity of the aromatic polyester polyol compound ranges from about 200 to about 150,000 centipoises at 25° C.

8. The method according to claim 6 , wherein the acid value of the aromatic polyester polyol compound ranges from about 0.1 mg of KOH/g to about 10 mg of KOH/g.

9. The method according to claim 6 , wherein the polyurethane foam composition does not comprise a solvent.

10. The polyurethane foam according to claim 6 , wherein the polyurethane foam is applied to a surface of a roofing, wall, pipe, or storage tank assembly.

Assignees

• Huntsman Int Llc

Inventors

• Xi Kai
• Shieh David J
• Wu Lifeng
• Singh Sachchida

Classifications

• C08G2150/60

  Compositions for foaming; Foamed or intumescent coatings · CPC title

• C08G2101/00

  Manufacture of cellular products · CPC title

• C08G18/4219

  from aromatic dicarboxylic acids and dialcohols in combination with polycarboxylic acids and/or polyhydroxy compounds which are at least trifunctional · CPC title

• C08G18/14

  Manufacture of cellular products · CPC title

• C08G2110/0025

  rigid · CPC title