Abstract: A composition is disclosed, which comprises (A) an organohydrogensiloxane having cyclic siloxane moieties including silicon-bonded hydrogen atoms. The composition further comprises (B) a polyether compound having an aliphatically unsaturated group. Finally, the composition comprises (C) a hydrosilylation catalyst. A silicone polyether surfactant prepared by reacting components (A) and (B) in the presence of component (C) is also disclosed. In addition, an isocyanate-reactive component comprising a polyol and the silicone polyether surfactant is disclosed. A composition comprising the isocyanate-reactive component, an isocyanate component comprising a polyisocyanate, and a catalyst is further disclosed. Finally, a method of preparing an article comprising a polyurethane and/or polyisocyanurate foam, and an article formed from the composition and/or the method, are disclosed.

Abstract: A rigid polyurethane foam formulation comprising a polyester polyol having a hydroxyl number of from 150 to 600 mg KOH/g and a functionality of at least 2, a blowing agent comprising water and an auxiliary blowing agent, a non-silicone organic surfactant, greater than 0.1% to less than 3.7% of a cyclic siloxane, by weight based on the total weight of the foam formulation, a catalyst, and optionally a flame retardant; and a polyisocyanate; such that the isocyanate index is in the range of from 100 to 500, a rigid polyurethane foam formed from the foam formulation; and a method of forming a rigid polyurethane foam.

Abstract: An isocyanate-based foam composition includes a polyol, an isocyanate-containing component and a silicone polyether Got stabilizer having the following structure: (CH3)3Si—[OSi(CH3)2]x—[OSi(CH3)(Y)]y—OSi(CH3)3 where x is 0 to 15, y is 1 to 2, and Y is (CH2)nO—(CH2CH2O)e—(CH2CH(R))O)p—Z where n is 1 to 10, e is 5 to 15, p is zero to 10, R is —CH3 or CH2CH3 and Z is selected from a group consisting of hydrogen, alkyl, aryl, acyl, and alkyl succinic anhydride groups wherein 20 mole-percent or less of the Z N groups are hydrogen, wherein the ratio of e/x is greater than 0.

Abstract: A method for producing a polyurethane foam by combining: (a) a polyol; (b) a polyisocyanate; (c) a hydrohaloolefin blowing agent; (d) an amine catalyst; and (e) a polysiloxane.