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公开(公告)号：US10730996B2
公开(公告)日：2020-08-04
申请号：US15762208
申请日：2016-06-27
发明人： Giuseppe Lista , Alessandra Mosca
IPC分类号： C08G18/08 , C08G18/12 , C08G18/40 , C08G18/42 , C08G18/48 , C08G18/72 , C08G18/76 , C08G18/78 , C08J9/00 , C08K5/1565 , C08G101/00
摘要： Polyurethane foams including a polyurethane prepolymer composition, a catalyst, and a propellant are provided. The polyurethane prepolymer composition is produced from a formulation that includes an isocyanate reactive component in an amount of from about 1% to about 70% by weight based on the polyurethane prepolymer composition and an isocyanate component in an amount of from about 1% to about 70% by weight based on the polyurethane prepolymer composition. The isocyanate component includes toluene diisocyanate biuret in an amount of from about 1 to about 100% by weight based on the isocyanate component. The isocyanate reactive component includes one or more polyols. The polyurethane prepolymer composition has a viscosity of less than about 10,000 mPa*s at 50° C. and is substantially free of monofunctional reactive components. The polyurethane prepolymer composition also includes a free isocyanate monomer content of the toluene diisocyanate biuret of less than about 1% by weight.
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公开(公告)号：US20180258216A1
公开(公告)日：2018-09-13
申请号：US15762208
申请日：2016-06-27
发明人： Giuseppe Lista , Alessandra Mosca
IPC分类号： C08G18/78 , C08G18/08 , C08G18/12 , C08G18/42 , C08G18/48 , C08G18/40 , C08G18/76 , C08G18/72 , C08J9/00
CPC分类号： C08G18/7831 , C08G18/12 , C08G18/14 , C08G18/4018 , C08G18/42 , C08G18/4804 , C08G18/4808 , C08G18/725 , C08G18/7664 , C08G2101/00 , C08J9/0023 , C08J2375/08 , C08K5/1565
摘要： Polyurethane foams including a polyurethane prepolymer composition, a catalyst, and a propellant are provided. The polyurethane prepolymer composition is produced from a formulation that includes an isocyanate reactive component in an amount of from about 1% to about 70% by weight based on the polyurethane prepolymer composition and an isocyanate component in an amount of from about 1% to about 70% by weight based on the polyurethane prepolymer composition. The isocyanate component includes toluene diisocyanate biuret in an amount of from about 1 to about 100% by weight based on the isocyanate component. The isocyanate reactive component includes one or more polyols. The polyurethane prepolymer composition has a viscosity of less than about 10,000 mPa*s at 50° C. and is substantially free of monofunctional reactive components. The polyurethane prepolymer composition also includes a free isocyanate monomer content of the toluene diisocyanate biuret of less than about 1% by weight.
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