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公开(公告)号:MX2012012131A
公开(公告)日:2013-02-26
申请号:MX2012012131
申请日:2011-04-19
Applicant: BASF SE
Inventor: FABISIAK ROLAND , KAMPF GUNNAR , JACOBMEIER OLAF , KOESTERS MICHAEL
Abstract: La invención se refiere a un proceso para producir espumas rígidas de poliuretano haciendo reaccionar: a) poliisocianatos con b) compuestos que tengan al menos dos átomos de hidrógeno que sean reactivos hacia los grupos isocianato, en presencia de c) agentes de soplado, en donde los compuestos b) que tienen al menos dos átomos de hidrógeno los cuales son reactivos hacia los grupos isocianato comprenden al menos un alcohol aromático de poliéster bi) ; al menos un alcohol de poliéter bii) que tenga una funcionalidad desde 4 hasta 8, y un índice de hodroxilo en el intervalo desde 300 hasta 600 mg/KOH/g.
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公开(公告)号:CA2797528C
公开(公告)日:2019-01-08
申请号:CA2797528
申请日:2011-04-19
Applicant: BASF SE
Inventor: KOESTERS MICHAEL , KAMPF GUNNAR , FABISIAK ROLAND , JACOBMEIER OLAF
Abstract: The invention relates to a method for producing polyurethane rigid foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms that are reactive with isocyanate groups in the presence of c) expanding agents, characterized in that the compounds having at least two hydrogen atoms that are reactive with isocyanate groups contain b) at least one aromatic polyester alcohol bi), at least one polyester alcohol bii) having a functionality of 4 to 8 and a hydroxyl number ranging between 300 and 600 mgKOH/gh.
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公开(公告)号:CA2797528A1
公开(公告)日:2011-10-27
申请号:CA2797528
申请日:2011-04-19
Applicant: BASF SE
Inventor: KOESTERS MICHAEL , KAMPF GUNNAR , FABISIAK ROLAND , JACOBMEIER OLAF
Abstract: The invention relates to a method for producing polyurethane rigid foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms that are reactive with isocyanate groups in the presence of c) expanding agents, characterized in that the compounds having at least two hydrogen atoms that are reactive with isocyanate groups contain b) at least one aromatic polyester alcohol bi), at least one polyester alcohol bii) having a functionality of 4 to 8 and a hydroxyl number ranging between 300 and 600 mgKOH/gh.
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