Process for preparing styrenated nondrying and/or semi-drying oil modified alkyd resins by incremental monomeric addition

• US 2,986,543 A
• Filed: 10/20/1958
• Issued: 05/30/1961
• Est. Priority Date: 10/20/1958
• Status: Expired due to Term

• Current Assignee: John H. Daniel Jr
• Original Assignee: John H. Daniel Jr
• Inventors: Daniel, John H. Jr.
• Application Number:
  US03/768,025
• Time in Patent Office: 953 Days
• US Class Current: 528/295.5
• CPC Class Codes: C08F 212/08 Styrene
• CPC Class Codes: C08F 212/12 Monomers containing a branched unsaturated aliphatic radical or a ring substituted by an alkyl radical
• CPC Class Codes: C08F 242/00 Copolymers of drying oils with other monomers
• CPC Class Codes: C08F 8/14 Esterification
• CPC Class Codes: C09D 167/08 Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
• CPC Class Codes: C09F 7/06 by polymerisation

Claims

1. A PROCESS FOR THE PREPARATION OF STYRENATED ALKYD RESIN COMPRISING THE STEPS OF ADDING AN ORGANIC PEROXIDE POLYMERIZATION CATALYST AND A POLYMERIZABLE STYRENE CONSISTING ESSENTIALLY OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF STYRENE, A NUCLEAR SUBSTITUTED METHYL STYRENE AND A NUCLEAR SUBSTITUTED HALO STYRENE, IN AN AMOUNT VARYING BETWEEN ABOUT 0.28% AND 1.1% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF STYRENE COMPOUND TO BE ADDED, PER MINUTE FOR A PERIOD OF TIME BETWEEN ABOUT 11/2 HOURS AND 6 HOURS, TO AN OIL MATERIAL SELECTED FROM THE GROUP CONSISTING OF NON-DRYING GLYCERIDE OILS, SEMI-DRYING GLYCERIDE OILS AND THE FATTY ACIDS OF SAID GLYCERIDE OILS WHILE MAINTAINING THE TEMPERATURE OF SAID OIL MATERIAL AT A TEMPERATURE OF AT LEAST 140*C., HEATING THE MIXTURE OF SAID OIL MATERIAL, CATALYST AND STYRENE COMPOUND AFTER THE ADDITION OF SAID STYRENE COMPOUND HAS BEEN COMPLETED UNTIL SUBSTANTIALLY COMPLETE POLYMERIZATION HAS TAKEN PLACE, THEREAFTER ADDING A POLYHYDRIC ALCOHOL HAVING AT LEAST 3 HYDROXY GROUPS AND A POLYCARBOXYLIC ACID FREE FROM NON-BENZENOID UNSATURATION AND HEATING THE ENTIRE MIXTURE UNTIL SUBSTANTIALLY COMPLETE ESTERIFICATION HAS BEEN ACCOMPLISHED AS IS INDICATED BY AN ACID NUMBER OF LESS THAN 20, WHEREIN SAID GLYCERIDE OILS AND THEIR FATTY ACIDS CONTAIN NO SIGNIFICANT MEASURE OF CONJUGATED UNSATURATION, WHEREIN THE AMOUNT OF POLYCARBOXYLIC ACID FREE OF NON-BENZENOID UNSATURATION ADDED VARIES BETWEEN ABOUT 20% AND 50% BY WEIGHT, BASED ON THE TOTAL CALCULATED WEIGHT OF THE OIL-MODIFIED ALKYD RESIN EXCLUDING THE STYRENE COMPOUND;

WHEREIN SAID POLYDRIC ALCOHOL IS CHARGED IN AN AMOUNT VARYING BETWEEN THE STOICHIOMETRICAL AMOUNT REQUIRED TO COMPLETELY ESTERIFY ALL CARBOXYL GROUPS PRESENT IN THE SYSTEM AND 20% IN EXCESS OF SAID STOICHIOMETRICAL AMOUNT;

WHEREIN THE TOTAL AMOUNT OF SAID STYRENE UTILIZED IS BETWEEN ABOUT 10% AND 70% BY WEIGHT BASED ON THE TOTAL WEIGHT OF SAID STYRENATED ALKYD RESIN AND WHEREIN THE TOTAL AMOUNT OF SAID OIL MATERIAL UTILIZED IS BETWEEN ABOUT 10% AND 70% BY WEIGHT BASED ON THE TOTAL WEIGHT OF SAID STYRENATED ALKYD RESIN.