Abstract:
The present invention relates to composite elements comprising (i) plastic, adhering to which there is (ii) a polyisocyanate polyaddition product, where the polyisocyanate polyaddition product is obtained by mixing (a) isocyanate with (b) compounds having groups reactive toward isocyanates, (c) catalysts, (d) if desired, blowing agent, and (e) if desired, further additives, to give a reaction mixture, and permitting the reaction mixture to complete its reaction to give the polyisocyanate polyaddition product, where the compounds (b) having groups reactive toward isocyanates comprise a polyester polyalcohol as adhesion promoter, which can be prepared by polycondensation of an acid component and of one or more low-molecular-weight diols whose molecular weight is less than 500 g/mol, in excess, where the acid component comprises 83 to 97 mol% of adipic acid and 3 to 17 mol% of phthalic acid, isophthalic acid and/or terephthalic acid. The present invention further relates to composite elements comprising (i) plastic, adhering to which there is (ii) a polyisocyanate polyaddition product, where the polyisocyanate polyaddition product is obtained by mixing (a) isocyanate with (b) compounds having groups reactive toward isocyanates, (c) catalysts, (d) if desired, blowing agent, and (e) if desired, further additives, to give a reaction mixture, and permitting the reaction mixture to complete its reaction to give the polyisocyanate polyaddition product, where the compounds (b) having groups reactive toward isocyanates comprise a polyester polyalcohol as adhesion promoter, preparable by polycondensation of an acid component and one or more low-molecular-weight diols having a molecular weight of less than 500 g/mol, in excess, the low-molecular-weight diols containing 5 to 66 mol% of 1,3-propanediol, based on the total amount of the diol. The present invention also relates to a process for the production of these composite elements, and to components in the fitting-out of aircraft, of vehicles, or of buildings, and to insulation systems comprising this type of composite element.
Abstract:
The present invention relates to composite elements comprising (i) plastic, adhering to which there is (ii) a polyisocyanate polyaddition product, where the polyisocyanate polyaddition product is obtained by mixing (a) isocyanate with (b) compounds having groups reactive toward isocyanates, (c) catalysts, (d) if desired, blowing agent, and (e) if desired, further additives, to give a reaction mixture, and permitting the reaction mixture to complete its reaction to give the polyisocyanate polyaddition product, where the compounds (b) having groups reactive toward isocyanates comprise a polyester polyalcohol as adhesion promoter, which can be prepared by polycondensation of an acid component and of one or more low-molecular-weight diols whose molecular weight is less than 500 g/mol, in excess, where the acid component comprises 83 to 97 mol% of adipic acid and 3 to 17 mol% of phthalic acid, isophthalic acid and/or terephthalic acid. The present invention further relates to composite elements comprising (i) plastic, adhering to which there is (ii) a polyisocyanate polyaddition product, where the polyisocyanate polyaddition product is obtained by mixing (a) isocyanate with (b) compounds having groups reactive toward isocyanates, (c) catalysts, (d) if desired, blowing agent, and (e) if desired, further additives, to give a reaction mixture, and permitting the reaction mixture to complete its reaction to give the polyisocyanate polyaddition product, where the compounds (b) having groups reactive toward isocyanates comprise a polyester polyalcohol as adhesion promoter, preparable by polycondensation of an acid component and one or more low-molecular-weight diols having a molecular weight of less than 500 g/mol, in excess, the low-molecular-weight diols containing 5 to 66 mol% of 1,3-propanediol, based on the total amount of the diol. The present invention also relates to a process for the production of these composite elements, and to components in the fitting-out of aircraft, of vehicles, or of buildings, and to insulation systems comprising this type of composite element.
Abstract:
The present invention relates to composite elements comprising (i) plastic, adhering to which there is (ii) a polyisocyanate polyaddition product, where the polyisocyanate polyaddition product is obtained by mixing (a) isocyanate with (b) compounds having groups reactive toward isocyanates, (c) catalysts, (d) if desired, blowing agent, and (e) if desired, further additives, to give a reaction mixture, and permitting the reaction mixture to complete its reaction to give the polyisocyanate polyaddition product, where the compounds (b) having groups reactive toward isocyanates comprise a polyester polyalcohol as adhesion promoter, which can be prepared by polycondensation of an acid component and of one or more low-molecular-weight diols whose molecular weight is less than 500 g/mol, in excess, where the acid component comprises 83 to 97 mol% of adipic acid and 3 to 17 mol% of phthalic acid, isophthalic acid and/or terephthalic acid. The present invention further relates to composite elements comprising (i) plastic, adhering to which there is (ii) a polyisocyanate polyaddition product, where the polyisocyanate polyaddition product is obtained by mixing (a) isocyanate with (b) compounds having groups reactive toward isocyanates, (c) catalysts, (d) if desired, blowing agent, and (e) if desired, further additives, to give a reaction mixture, and permitting the reaction mixture to complete its reaction to give the polyisocyanate polyaddition product, where the compounds (b) having groups reactive toward isocyanates comprise a polyester polyalcohol as adhesion promoter, preparable by polycondensation of an acid component and one or more low-molecular-weight diols having a molecular weight of less than 500 g/mol, in excess, the low-molecular-weight diols containing 5 to 66 mol% of 1,3-propanediol, based on the total amount of the diol. The present invention also relates to a process for the production of these composite elements, and to components in the fitting-out of aircraft, of vehicles, or of buildings, and to insulation systems comprising this type of composite element.
Abstract:
Elementos composite que contienen (i) plástico, al cual se une adhiriéndose (ii) un producto de poli-adición de poli-isocianato, en cuyo caso el producto de poli-adición de poli-isocianato se obtiene mezclando a) isocianato con b) compuestos que tienen grupos reactivos frente a los isocianatos, c) catalizadores, d) opcionalmente propelentes y e) opcionalmente otros aditivos, para formar una mezcla de reacción y dejando reaccionar la mezcla de reacción para obtener el producto de poliadición de poli-isocianato, en cuyo caso los compuestos que tienen grupos reactivos frente a los isocianatos (b) contienen un poliéster-polialcohol en calidad de promotor de adhesión, el cual puede producirse mediante policondensación de un componente de ácido y uno o varios dioles de bajo peso molecular, en exceso, que tienen un peso molecular de menos de 500 g/mol, en cuyo caso los dioles de bajo peso molecular contienen 5 a 66 % molar de 1,3-propandiol, respecto de la cantidad total del diol.
Abstract:
La presente invención se refiere a elementos compuestos que comprenden (i) plástico, al cual se adhiere, (ii) un producto de poliadición de poliisocianato, donde el producto de poliadición de poliisocianato se obtiene a través del mezclado del (a) isocianato con (b) compuestos que tienen grupos reactivos a los isocianatos, (c) catalizadores, (d) si es apropiado, agente de soplado, y (e) si es apropiado, aditivos adicionales, para dar una mezcla de reacción y permitir a la mezcla de reacción completar su reacción para dar el producto de poliadición de poliisocianato, donde los compuestos (b) que tienen grupos reactivos a los isocianatos comprenden un polialcohol de poliéster como promotor de adhesión, apto para producción a través de la policondensación de un componente ácido y de uno o más dioles de peso molecular bajo cuya masa molar es menor de 500 g/moles, en exceso, donde el componente ácido comprende 83 a 97% en mol de ácido adípico y de 3 a 17% en mol de ácido ftálico, ácido isoftálico, y/o ácido tereftálico. La presente invención se refiere además a elementos compuestos que comprenden un (i) plástico, al cual se adhiere (ii) un producto de poliadición de poliisocianato, donde el producto de poliadición de poliisocianato se obtiene a través del mezclado de (a) isocianato con (b) compuestos que tienen grupos reactivos a los isocianatos, (c) catalizadores, (d) si es apropiado, agente de soplado, y (e) si es apropiado, aditivos adicionales para dar una mezcla de reacción y permitir a la mezcla de reacción completar su reacción para dar el producto de poliadición de poliisocianato, donde los compuestos (b) que tienen grupos reactivos a los isocianatos comprenden un polialcohol de poliéster como promotor de adhesión, apto para producción a través de la policondensación de un componente ácido y de uno o más dioles de peso molecular bajo cuya masa molar es menor de 500 g/moles, en exceso, donde los dioles de peso molecular bajo comprenden de 5 a 66% en mol de 1,3-propandiol, en base a la cantidad total del diol. La presente invención también se refiere a un proceso para la producción de estos elementos compuestos, y a componentes en el armado de aeronaves, de vehículos, o de edificios, y al aislamiento que comprende este tipo de elemento compuesto.
Abstract:
Reducing formaldehyde emissions from polyurethane foams comprises adding an amino-functional polymer before, during or after producing the foam. Independent claims are also included for: (1) polyurethane foam containing 0.0001 to less than 0.1 wt.% of an amino-functional polymer with a molecular weight (MW) of at least 500 and an amino functionality (AF) of at least 3, the MW/AF ratio being 40-500; (2) equipment articles comprising the polyurethane foam; (3) use of amino-functional polymers to improve the mechanical properties of polyurethane foams.