Polysiloxane polyether copolymers with (polyether) remnants containing carbonate groups and use of same as stabilisers for production of polyurethane foams

摘要

Polysiloxane-polyether copolymer having at least one polyether group exhibiting at least one ether terminal building block (I), is new. Polysiloxane-polyether copolymer having at least one polyether group, with at least one polyether group comprising a unit of formula -O-C(O)-Y1- (I), is new. Y1 : NR11, O or S; and R11 : H or alkyl. Independent claims are also included for: (1) preparing the polysiloxane-polyether copolymer; (2) use of the polysiloxane-polyether copolymer as foam stabilizers in the production of polyurethane foams and in the production of polyurethane-based plastics, as surfactants for liquid carbon dioxide extraction, as surface-active substances in dry-cleaning, and as emulsifiers for cosmetic applications; and (3) the polyurethane foam comprising at least one above polysiloxane-polyether copolymer.