Polyester polyol, polyurethane obtained therefrom, and rigid polyurethane foam
(19)AUSTRALIAN PATENT OFFICE(54) Title Polyester polyol, polyurethane obtainedtherefrom, and rigid polyurethane foam (51)6 International Patent Classification(s) C08G 063/12 C08J 009/14 C08G 018/42 (21) Application No: 2003275714 (22) Application Date: 2003.10.28 (87) WIPONo: WO04/037890 (30) Priority Data (31) Number (32) Date (33) Country 2002-313420 2002.10.28 JP 20050825 7 (43) Publication Date : 2004.05.13 (43) Publication Journal Date : 2004.06.17(71) Applicant(s) MITSUBISHI CHEMICAL CORPORATION ; KAWASAKI KASEI CHEMICALS LTD.(72) Inventor(s) Nagashima, Sayaka; Maruyama, Kazuhiro; Ikemoto, Seishi; Ikejiri, Yuujirou (H) Application NoAU2003275714 A8(19)AUSTRALIAN PATENT OFFICE(54) Title Polyester polyol, polyurethane obtainedtherefrom, and rigid polyurethane foam (51)6 International Patent Classification(s) C08G 063/12 C08J 009/14 C08G 018/42 (21) Application No: 2003275714 (22) Application Date: 2003.10.28 (87) WIPONo: WO04/037890 (30) Priority Data (31) Number (32) Date (33) Country 2002-313420 2002.10.28 JP 20050825 7 (43) Publication Date : 2004.05.13 (43) Publication Journal Date : 2004.06.17(71) Applicant(s) MITSUBISHI CHEMICAL CORPORATION ; KAWASAKI KASEI CHEMICALS LTD.(72) Inventor(s) Nagashima, Sayaka; Maruyama, Kazuhiro; Ikemoto, Seishi; Ikejiri, Yuujirou A polyester polyol which, when used as a starting-material polyol for polyurethanes, especially rigid polyurethane foams, not only has a low viscosity and satisfactory handleability but has high compatibility with blowing agents, especially an HFC blowing agent such as HFC-245fa and/or HFC-365mfc. The polyester polyol is one obtained by esterifying a polycarboxylic acid with alcohols, the alcohols containing 2 to 40 wt.% at least one member selected from the group consisting of 1-hydroxy-2-acetoxybutane, 1-acetoxy-2-hydroxybutane, and 1,2-diacetoxybutane. 1. The polyester polyol obtained by esterification reaction in a polyvalent carboxylic acid and alcohol, as alcohol, [...][...] 1-2. 1- [...] 2-hydroxybutanoate and 1, 2 at least one [...] 1 species selected from the group consisting of 2-4 0% by weight and containing a polyester polyol is used one. 2. Alcohol, 1, 2-butanediol and, 1 [...] -2- [...] butanedial, 1- [...] one 2-hydroxybutanoate and 1, 2-1 [...] and selected from the group consisting of a kind, in which a mixture, this mixture of 1, 2-butanediol content of a mixture 6 0-9 8% by weight, polyol ester polycide. 3. The mixture is, 1, 3-butadiene and acetic acid and molecular oxygen and in the presence of a palladium catalyst [...] reaction, then the obtained [...] compounds such as mono [...] lupulus and reaction product of hydrogen added to the presence of a noble metal catalyst, and then the obtained [...] pattern such as the pattern or evening [...] evening probe reaction products in the presence of a solid acid and acetic acid hydrolyzing water distillation, that obtained by separation by distillation, according to claim 2, a polyester polyol described. 4. Claims 1-3 described in any of the polyester polyol and a polyol and a jumper compd. [...] contg. prepared by reaction and a pattern [...] evening. 5. Using the described in claim 4 of the rigid polyurethane foam is polyurethane. 6. Furthermore, an ozone destruction coefficient of 0. 8 containing a foaming agent of the rigid polyurethane foam of claim 5 described. 7. H F C -2 4 5 f a and/or H F C -3 6 5 m f c of claim 6 in which a foaming agent of rigid polyurethane foam.