Catalyst systems containing dimethylamino ether mono-ols for polyurethane foam formation

A method for producing a cellular urethane polymer which comprises reacting and foaming a reaction mixture containing (1) an organic polyisocyanate, (2) a polymer/polyether polyol produced by the in situ polymerization of at least one polymerizable ethylenically unsaturated monomer in a polyether polyol, (3) a blowing agent, and (4) from about 0.05 to about 10 parts by weight per one hundred parts by weight of total polyol contained in the reaction mixture, of a catalyst system comprising from about 10 to about 90 weight percent of component (i) which is at least one dimethylamino ether mono-ol having the formula, (CH.sub.3).sub.2 N--CH.sub.2 CH.sub.2 --O--(CH.sub.2 CH.sub.2 O).sub.n --H, where n has an average value from one to about three, and from about 90 to about 10 weight percent of component (ii) which is at least one other tertiary-amine different from component (i), said weight percentages being based on the combined total weight of components (i) and (ii) contained in the reaction mixture.

A method for producing flexible polyether urethane foam which comprises simultaneously reacting and foaming a polyether polyol having an average hydroxyl functionality from 2 to about 4 and a hydroxyl number from about 20 to about 125 in the presence of water as a source of blowing action, and from about 0.05 to about 4 parts by weight per one hundred parts by weight of polyether polyol contained in the reaction mixture, of a catalyst system comprising from about 10 to about 90 weight percent of component (i) and from about 90 to about 10 weight percent of component (ii), said weight percentages being based on the combined total weight of components (i) and (ii) contained in the reaction mixture, where component (i) is 2-(2-dimethylaminoethoxy)ethanol and component (ii) is bis[2-(N,N-dimethylamino)ethyl]ether.

A method for producing rigid urethane foam which comprises reacting and foaming an organic polyisocyanate reactant and an organic polyol reactant comprising a polyether polyol having an average hydroxyl functionality from about 3 to about 8 and a hydroxyl number from about 200 to about 1000 in the presence of a blowing agent comprising fluorocarbon and from about 0.1 to about 10 parts by weight per one hundred parts by weight of total polyol contained in the reaction mixture, of a catalyst system comprising from about 10 to about 90 weight percent of component (i) and from about 90 to about 10 weight percent of component (ii), said weight percentages being based on the combined total weight of components (i) and (ii) contained in the reaction mixture, wherein component (i) is at least one tertiary-dimethylamino ether mono-ol selected from the group consisting of 2-(2-dimethylaminoethoxy)ethanol and 2-[2-(2-dimethylaminoethoxy)ethoxy]ethanol, and component (ii) is at least one other tertiary-amine different from component (i).

A method for producing semi-flexible polyurethane foam which comprises reacting and foaming a reaction mixture containing (1) an organic polyisocyanate;

• (2) an organic polyol reactant which is constituted of (a) from about 50 to 100 percent by weight of a polymer/polyether polyol produced by the in situ polymerization of an ethylenically unsaturated monomer in a polyether polyol and (b) from zero up to about 50 percent by weight of a polyether polyol having an average hydroxyl functionality from 2.1 to about 5, a hydroxyl number from about 18 to about 40 and an average primary hydroxyl content between about 35 and about 85 mole percent;
• (3) a blowing agent;
• and (4) from about 0.1 to about 10 parts by weight per one hundred parts by weight of total polyol reactant contained in the reaction mixture, of a catalyst system comprising from about 10 to about 90 weight percent of component (i) and from about 90 to about 10 weight percent of component (ii), said weight percentages being based on the combined total weight of components (i) and (ii) contained in the reaction mixture, where component (i) is at least one of 2-(2-dimethylaminoethoxy)ethanol and 2-[2-(2-dimethylaminoethoxy)ethoxy]ethanol, and component (ii) is at least one other tertiary-amine different from component (i).

A method for producing high-resilience polyurethane foam which comprises reacting and foaming a reaction mixture containing (1) an organic polyisocyante;

• (2) an organic polyol reactant which is constituted of (a) from about 20 to about 60 weight percent of a polymer/polyether polyol produced by the in situ polymerization of an ethylenically unsaturated monomer in a polyether polyol and (b) from about 80 to about 40 weight percent of a polyether polyol having an average hydroxyl functionality from 2.1 to about 5, a hydroxyl number from 18 to about 40 and an average primary hydroxyl content between about 35 and about 85 mole percent;
• (3) a blowing agent;
• and (4) from about 0.05 to about 4 parts by weight per one hundred parts by weight of total organic polyol contained in the reaction mixture, of a catalyst system comprising from about 10 to about 90 weight percent of component (i) and from about 90 to about 10 weight percent of component (ii), said weight percentages being based on the combined total weight of components (i) and (ii) contained in the reaction mixture, where component (i) is at least one of 2-(2-dimethylaminoethoxy)ethanol and 2-[2-(2-dimethylaminoethoxy)ethoxy]ethanol, and component (ii) is at least one other tertiaryamine different from component (i).