TH82604A - Stabilizer to thermal oxidation of polyol or polyurethane mixtures. - Google Patents

Abstract

DC60 (24/05/49) This invention relates to mixtures of polyester polyols, polyether polyols, acrylic polyols, polycarbonate polyols, polybutadiene polyols, hydrogenated polybutadiene polyols, functionalized polyethers and/or heat-sensitive polyurethanes, and at least one (101) and/or (102) antioxidant, and possibly other antioxidants. This invention also relates to the use of such stabilizers (mixtures) in such polyols, functionalized polyethers and/or such polyurethanes against heat-sensitive degradation and the processes for stabilizing such polyols, functionalized polyethers. and/or such polyols with such stabilizers (mixtures) against thermal degradation (chemical formulas) (101) (chemical formulas) (102). This invention relates to mixtures containing polyester polyols, polyether polyols, acrylic polyols, polycarbonate polyols, polybutadiene polyols, hydrogenated polybutadiene polyols, functionalized polyethers and/or such thermal degradation-sensitive polyurethanes and at least one oxidant according to formulations (101) and/or (102), and may contain other oxidants. This invention also relates to the use of such stabilizers (mixtures) in such polyols, functionalized polyethers and/or such polyurethanes against thermal degradation and the processes for stabilizing polyols, functionalized polyethers. and/or such polyurethane with stabilizers (mixtures) against thermal degradation (chemical formula) (101) (chemical formula) (102)

Claims (14)

1. A mixture containing (a) a polyester polyol, a polyether polyol, an acrylic polyol, a polycarbonate polyol, a polybutadiene polyol, a hydrogenated polybutadiene polyol, a functionalized polyether and/or a polyurethane, and (b) an antioxidant of formula (101) and/or (102) (chemical formula) (101) (chemical formula) (102), and (c) may contain other antioxidants against thermal degradation provided that the mixture contains other antioxidants. (c) If component (b) is an antioxidant of formula (101), if component (a) is a polyurethane and component (b) is an antioxidant of formula (102), there will be component (c) in the mixture. Component (a) will not be a polyester polyol, a polyether polyol or a polyurethane if Antioxidants are mixtures of compounds according to the formulas (101) and (103) or (101) and (104) (chemical formulas) (103) (chemical formulas) (104). 2. A mixture according to claim 1 containing component (c). 3. A mixture according to claim 2, in which (c) is a phenolic or aminoic antioxidant. 4. The mixture according to claim 1, where the other antioxidants (c) are compounds according to formulas (103)-(108) (chemical formulas) (105) (chemical formulas) (106) (chemical formulas) (107) (chemical formulas) (108). 5. Mixtures according to claim 4, where the antioxidant (b) and other antioxidants (c) are i) a mixture of elements (101) and (102), ii) a mixture of elements (101) and (103), iii) a mixture of elements (101) and (104), iv) a mixture of elements (102) and (103), or v) a mixture of elements (102) and (104). 6. A mixture according to claim 1, which includes other additives. 7. The mixtures under claim 6, which include other antioxidants different from (b) and (c), light stabilizers, process stabilizers, flame retardants, antimicrobial agents, anti-gas-fading agents and/or luminescent agents. 8. A mixture according to claim 7, which includes additional phenolic and/or amino antioxidant additives, hinderamine light stabilizers, UV absorbers, phosphite, phosphonitide, benzofuranone and/or flame retardants. 9. A mixture according to claim 1, where the total amounts of components (b) and (c) are 0.01% to 5% by weight of the mixture. 10. A mixture according to claim 1, where the ratio of the components (b):(c) or of the compounds according to formula (101):(102), respectively, is between 10:1 and 1:10. 11. The use of the antioxidant (b) according to formulation (101) and/or (102) as specified in Reputation 1 and possibly additional antioxidants (c) as stabilizers in (a) polyester polyols, polyether polyols, acrylic polyols, polycarbonate polyols, polybutadiene polyols, hydrogenated polybutadiene polyols, functionalized polyethers and/or polyurethanes against thermal degradation, provided that component (a) is not a polyurethane if component (b) is the antioxidant according to formulation (101) and there is no component (c). 12. The use of antioxidants (b) and other antioxidants (c) under claim 11 in combination with at least one other additive. 13. Processes for stabilization of (a) polyester polyols, polyether polyols, acrylic polyols, polycarbonate polyols, polybutadiene polyols, hydrogenated polybutadiene polyols, functionalized polyethers and/or polyurethanes against thermal degradation with (b) antioxidants formulated (101) and/or (102) as specified in Reputation 1 and (c) other additional antioxidants against thermal degradation may be provided that component (a) is not a polyurethane if component (b) is an antioxidant formulated (101) and no component (c) is present. 14. The process under claim 13 where antioxidant (b) and another antioxidant (c) are used in combination with at least one other additive.