Internal mold release agents comprising metallic soaps compatibilized with liquid quaternary ammonium salts
January 26, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3726952 3892687 Cyclic quaternary hydroxyalkyl phenoxide catalysts for isocyanate reactions Catalysis of organic isocyanate reactions Process for the production of foams Method of molding polyurethanes having mold release properties Quaternary hydroxyalkyl tertiary amine bases as polyurethane catalysts Method of molding polyurethanes having mold release properties Internal mold release agent for use in reaction injection molding Internal mold release compositions InventorAssigneeApplicationNo. 008921 filed on 01/26/1993US Classes:524/236, Trivalent or tetravalent nitrogen atom other than unsubstituted ammonium524/394, Oxygen atom or metal atom DNRM, e.g., metal stearate, etc.524/398, Transition metal atom (atomic no. 21-29, 39-47, 57-79)524/399, Heavy metal or aluminum (atomic no. 13, 30-33, 48-51, 80-83)524/400, Group IIA metal (Be, Mg, Ca, Sr, Ba)524/714, N-containing organic compound excluding unsubstituted ammonium as sole nitrogen in DNRM524/779, Elemental metal or metal compound not containing silicon DNRM524/780, Heavy metal524/786AlExaminersPrimary: Szekely, PeterAttorney, Agent or FirmForeign Patent References
International ClassesC08K 005/09C08K 005/17 AbstractIn an active hydrogen-containing B-side composition for reaction with a polyisocyanate-containing A-side composition to make a polyurethane or polyurethaneurea elastomer by reaction injection molding, the improvement which comprises a mold release composition consisting essentially of (1) a liquid quaternary ammonium salt and (2) a metal salt of a fatty acid.Field of SearchTrivalent or tetravalent nitrogen atom other than unsubstituted ammoniumAcyl group of the carboxylic acid or derivative has at least fifteen carbon atoms, e.g., stearic acid, etc. Heavy metal or aluminum (atomic no. 13, 30-33, 48-51, 80-83) Group IIA metal (Be, Mg, Ca, Sr, Ba) At least one solid polymer derived from acyclic monoethylenic hydrocarbon reactant Transition metal atom (atomic no. 21-29, 39-47, 57-79) Oxygen atom or metal atom DNRM, e.g., metal stearate, etc. Heavy metal Al N-containing organic compound excluding unsubstituted ammonium as sole nitrogen in DNRM | |
