公开(公告)号：US3849381A

公开(公告)日：1974-11-19

申请号：US31551172

申请日：1972-12-15

Applicant: PHILLIPS PETROLEUM CO

Inventor： DOSS R ,  GINGERICH L

IPC: C08G65/334 ,  C08G75/14 ,  C08L31/04 ,  C08L81/04 ,  C08G39/08 ,  C08G43/00

CPC classification number: C08L81/04 ,  C08G65/3342 ,  C08G75/14 ,  C08L31/04

Abstract: 1. A COMPOSITION CURABLE TO A SEALANT COMPRISING (A) A POLY(OXYALKYLENE) - POLYESTER - POLY(MONOSULFIDE)-POLYTHIOL HAVING AN AVERAGE OF MORE THAN TWO MERCAPTO GROUPS PER MOLECULE AND (B) A CHROMATE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM AND ALKALI METAL MONOCHROMATES, DICHROMATES, TRICHROMATES AND TETRACHROMATES IN AN AMOUNT SUFFICIENT TO CONVERT AT LEAST ABOUT 70 PERCENT OF THE PENDANT THIOL GROUPS TO POLYSULFIDE GROUPS AND THUS FORM A SEALANT, SAID (A) BEING THE ACIDIC, UNNEUTRALIZED POLYMERIC REACTION PRODUCT OF AT LEAST ONE MERCAPTOALKANOIC ACID, AT LEAST ONE THIODIALKANOIC ACID, AND AT LEAST ONE POLY(OXYALKYLENE)-POLYOL HAVING AN AVERAGE OF MORE THAN TWO HYDROXY GROUPS PER MOLECULE.