Internal mold release compositions
AssigneeThe Dow Chemical Company
InventorsDonald L. Nelson, Roney J. Matijega, Dennis P. Miller, deceased
Life of this patent
Estimating the term…
Abstract
Internal mold release compositions suitable for use in preparing polyurethane and polyurea moldings comprise a tertiary amine compound, a metal salt of a carboxylic acid, amidocarboxylic acid, phosphorus-containing acid or boron-containing acid. The metal is from Group IA, IB, IIA, or IIB metal or aluminum, chromium, molybdenum, iron, cobalt, nickel, tin, lead, antimony or bismuth.
Claims31
An internal mold release composition comprising (a) a metal salt of a carboxylic acid, amido carboxylic acid, phosphorus-containing acid or boron-containing acid wherein (i) the acid contains a lipophilic group which renders it incompatible with a polyahl and (ii) the metal is chosen from the metals in Groups IA, IB, IIA and IIB of the Periodic Table of the Elements, aluminum, chromium, molybdenum, iron, cobalt, nickel, tin, lead, antimony or bismuth and (b) a compatibilizing amount of a tertiary amine compound containing at least one tertiary nitrogen, which tertiary amine compound is a compatibilizer for the said metal salt in an active hydrogen-containing composition comprising said polyahl, but does not compatibilize the metal acid salt in a reacting mixture comprising said hydrogen-containing composition and a polyisocyanate.
An active hydrogen containing composition comprising
- (a) a polyahl having dispersed or dissolved therein
- (b) an effective amount of an internal mold release composition comprising
- (i) a metal salt of a carboxylic acid, amido carboxylic acid, phosphorous-containing acid or boron-containing acid wherein the acid contains a lipophilic group which renders it incompatible with the polyahl and a metal chosen from the metals in Groups IA, IB, IIA and IIB of the Periodic Table of the Elements, aluminum, chromium, molybdenum, iron, cobalt, nickel, tin, lead, antimony or bismuth and
- (ii) a compatibilizing amount of a tertiary amine compound containing at least one tertiary nitrogen, which tertiary amine compound is a compatibilizer for the said metal salts in said polyahl, but does not compatibilize the metal carboxylic acid salt in a reaction mixture comprising said hydrogen-containing composition and a polyisocyanate.
Dependencies are inferred from the claim text.