Flexible polyester based sealing composition

Abstract

Abstract 1. A FLEXIBLE SEALING COMPOSITION WHICH COMPRISES FROM 20 TO 90 PARTS BY WEIGHT OF A RISIN AND FROM 10 TO 80 PARTS BY WEIGHT OF A REFRACTORY INORGAINC OXIDE FILLER, SAID RESIN COMPRISING FROM 55 TO 95 PARTS BY WEIGHT OF AN UNSATURATED POLYESTER POLYMER AND FROM 5 TO 45 PARTS BY WEIGHT OF A HYDROCARBON MONOMER, SAID CROSS-LINKED POLYESTER POLYMER COMPRISING THE CONDENSATION PRODUCT OF THE FOLLOWING COMPONENTS: A. AN AROMATIC DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ISOPHTHALIC ACID, TEREPHTHALIC ACID, AND PHTHALIC ACID; B. A SATURATED ALIPHATIC DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ADIPIC ACID, AZALETIC ACID, AND SEBACIC ACID; C. A LONG-CHAINED DIOL SELECTED FROM THE GROUP CONSISTING OF TRIETHYLENE GLYCOL, DIETHYLENE GLYCOL, OR A MIXTURE OF TRIETHYLENE GLYCOL AND DIETHYLENE GLYCOL; AND D. AN UNSATURATED ALIPHATIC DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF FUMARIC ACID AND MALEIC ANHYDRIDE, WHEREIN SAID AROMATIC DICARBOXYLIC ACID IS EMPLOYED IN THE RANGE OF 1 TO 3 MOLES PER MOLE OF SAID UNSATURATED ALIPHATIC DICARBOXYLIC ACID, SAID SATURATED ALIPHATIC DICARBOXYLIC ACID IS EMPLOYED IN THE RANGE OF 4 TO 9 MOLES PER MOLE OF SAID UNSATURATED ALIPHATIC DICABOXYLIC ACID, AND SAID LONG-CHAIN GLYCOLS ARE EMPLOYED IN AN AMOUNT SUFFICIENT TO GIVE 1/2 TO 3 MOLE PERCENT EXCESS OVER THE CARBOXYL GROUPS PRESENT, AND WHEREIN SAID HYDROCARBON MONOMER IS SELECTED FROM THE GROUP CONSISTING OF A VINYLALKENYLBENZENE, AN ACRYLATE, OR A MIXTURE OF SAID VINYLALKENYLBENZENE AND SAID ACRYLATE, SAID MIXTURE CONTAINING 1 TO 80 WEIGHT PERCENT OF SAID ACRYLATE, SAID FLEXIBLE SEALING COMPOSITION HAVING A SHORE HARDNESS LESS THAN 80, AND A TENSILE STRENGTH IN THE RANGE OF 100 TO 200 P.S.I.

Inventors

• 👤 J Mayer
• 👤 V Raimondi

Bibliographic Details