Fast curing adhesives

Abstract

Abstract IMPROVED, FAST CURING, FLEXIBLE INDUSTRIAL ADHESIVES WITH AND WITHOUT FILLERS, AND ARTICLES BONDED THEREITH, ARE DESCRIBED WHICH ADHESIVES COMPRISE (A) ABOUT 1 TO ABOUT 30% OF AN ELASTOMERIC POLYMER SELECTED FROM THE GROUP CONSISTING OF (1) POLY BUTADIENE) HOMOPOLYMER, (2) A COPOLYMER OF BUTADIENE WITH AT LEAST ONE COPOLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF STYRENE, ACRYLONITRILE AND METHACRYLONITRILE, AND (3) A COPOLYMER OF BUTADIENE SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMER (1) AND COPOLYMERS (2) MODIFIED BY INCLUSION IN THE PLYMER OF TRACE AMOUNTS UP TO ABOUT 5% OF A FUNCTIONAL MONOMER, (B) ABOUT 25 TO ABOUT 85% OF AT LEAST ONE POLYMERIZABLE ACRYLIC MONOMER SELECTED FROM THE GROUP CONSISTING OF THE ACRYLATES, METHACRYLTES, ACRYLONITRILE AND METHACRYLONITRILE, (C) FROM 0 TO ABOUT 50% OF AT LEAST ONE ETHYLENICALLY UNSTUTRATED NON-ACRYLIC MONOMER, (D) FROM 0 TO ABOUT 60% OF A POLYMER HAVING AN INTRINSIC VISCOSITY IN THE RANGE FROM ABOUT 0.1 TO ABOUT 1.3 DERIVED FROM AT LEAST ONE OF SAID (B) AND (C) MONOMERS, (E) FROM ABOUT 5 TO ABOUT 20% OF METHACRYLIC ACID AND (F) ABOUT 0.04 TO ABOUT 4% OF THE REDUCING COMPONENT OF A REDOX CATALYST POLYMERIZATION SYSTEM; SAID ADHESIVES BEING COMPOUNDED BY SELECTING INGREDIENTS AND PROPORTIONS WITHIN THE FOREGOING LIMITS TO PRODUCE A COMPOSITION HAVING A HANDLEABLE CURE TIME OF NOT MORE THAN ABOUT 15 MINUTES AND WHICH IS PERFERABLY WITHIN THE RANGE FROM ABOUT 4 TO ABOUT 12 MINUTES.

Inventors

• 👤 W Owston

Bibliographic Details