Low Emissions Polyurethane Foam Made with Isocyanate Reactive Amine Catalyst
申请人:AIR PRODUCTS AND CHEMICALS, INC.
公开号:US20160075817A1
公开(公告)日:2016-03-17
Tertiary amine catalysts having isocyanate reactive groups that are capable of forming thermally stable covalent bonds able to withstand temperatures from 120° C. and higher and up to 250° C. are disclosed. These catalyst can be used to produce polyurethane foam having the following desirable characteristics: a) very low chemical emissions over a wide range of environmental conditions and isocyanate indexes (e.g., indexes as low as 65 but higher than 60) ; b) sufficient hydrolytic stability to maintain the catalyst covalently bound to foam without leaching of tertiary amine catalyst when foam is exposed to water or aqueous solutions even at temperatures higher than ambient (temperature range 25° C. to 90° C.); and c) stable contact interface between the polyurethane polymer and other polymers (for example polycarbonate) with minimal migration of tertiary amine catalyst from polyurethane polymer to other polymers yielding no noticeable polymer deterioration at the point of contact even under conditions of heat and humidity.
Reactive amine catalysts for polyurethane applications
申请人:EVONIK DEGUSSA GMBH
公开号:US10100141B2
公开(公告)日:2018-10-16
Tertiary amine catalysts having isocyanate reactive groups that are capable of forming thermally stable covalent bonds able to withstand temperatures up to 120° C. are disclosed. These catalyst can be used to produce polyurethane foam having the following desirable characteristics: a) very low chemical emissions over a wide range of environmental conditions and isocyanate indexes (e.g. indexes as low as 65 but higher than 60) while meeting all physical property requirements; b) sufficient hydrolytic stability to maintain the catalyst covalently bound to foam without leaching of tertiary amine catalyst when foam is exposed to water or aqueous solutions even at temperatures higher than ambient (temperature range 25° C. to 90° C.); and c) stable contact interface between the polyurethane polymer and other polymers (for example polycarbonate) with minimal migration of tertiary amine catalyst from polyurethane polymer to other polymers yielding no noticeable polymer deterioration at the point of contact even under conditions of heat and humidity.
本发明公开了具有异氰酸酯活性基团的叔胺催化剂,这些活性基团能够形成热稳定性共价键,可承受高达 120 摄氏度的温度。这些催化剂可用于生产具有以下理想特性的聚氨酯泡沫塑料: a) 在广泛的环境条件和异氰酸酯指数(例如指数低至 65 但高于 60)范围内,化学排放极低,同时满足所有物理性能要求; b) 具有足够的水解稳定性,即使在高于环境温度(温度范围为 25° C. 至 90° C)的条件下,当泡沫塑料暴露于水或水溶液中时,也能保持催化剂与泡沫塑料的共价结合,而不会发生叔胺催化剂的浸出;以及 c) 具有足够的水解稳定性,即使在高于环境温度(温度范围为 25° C. 至 90° C)的条件下,也能保持催化剂与泡沫塑料的共价结合,而不会发生叔胺催化剂的浸出。c) 聚氨酯聚合物与其他聚合物(如聚碳酸酯)之间的接触界面稳定,叔胺催化剂从 聚氨酯聚合物向其他聚合物的迁移量极小,即使在高温和潮湿条件下,接触点的聚合物 也不会明显变质。
Low emissions polyurethane foam made with isocyanate reactive amine catalysts
申请人:EVONIK DEGUSSA GMBH
公开号:US10421832B2
公开(公告)日:2019-09-24
Tertiary amine catalysts having isocyanate reactive groups capable of forming thermally stable covalent bonds able to withstand temperatures from 120° C. and higher and up to 250° C. are disclosed. These catalyst can be used to produce polyurethane foam having the following desirable characteristics: a) very low chemical emissions over a wide range of environmental conditions and isocyanate indexes (e.g., indexes as low as 65 but higher than 60); b) sufficient hydrolytic stability to maintain the catalyst covalently bound to foam without leaching of tertiary amine catalyst when foam is exposed to water or aqueous solutions even at temperatures higher than ambient (temperature range 25° C. to 90° C.); and c) stable contact interface between the polyurethane polymer and other polymers (for example polycarbonate) with minimal migration of tertiary amine catalyst from polyurethane polymer to other polymers yielding no noticeable polymer deterioration at the point of contact even under conditions of heat and humidity.