Method of joining hollow elastomeric strips by molding a partially foamable elastomer therebetween
Abstract
Abstract A CORNER MEMBER OR THE LIKE IS READILY MOLDED ONTO THE END OF AN ELASTOMERIC WEATHERSTRIP HAVING A HOLLOW TRANSVERSE SECTION, BY FIRST PREPARING A COMPOSITE MOLDING MEMBER, ONE PORTION OF WHICH IS A CURED COMPOSITION SELECTED FROM THE GROUP CONSISTING OF NEOPRENE RUBBER, STYRENEBUTADIENE RUBBER, NATURAL RUBBER, URETHANE POLYMERS AND POLYETHYLENE AND ANOTHER PORTION OF WHICH IS OF UNCURED FOAMABLE MATERIAL SELECTED FROM THE GROUP CONSISTING OF NEOPRENE RUBBER, STYRENE-BUTADIENE RUBBER, NATURAL RUBBER, URETHANE POLYMERS AND POLYETHYLENE. THE COMPOSITE MEMBER IS POSITIONED IN A SUITABLE MOLD TOGETHER WITH AN END OF THE HOLLOW STRIP WITH THE CURED PORTION ADJACENT THE HOLE IN THE END OF THE HOLLOW STRIP. THE PIECES ARE HEATED TO FOAM AND CURE THE UNREACTED PORTION OF THE COMPOSITE MEMBER WHEREBY A MOLDING IS FORMED AND BONDED TO THE ELONGATED STRIP.
Inventors
- 👤 Robert J Reardon
- 👤 William E Robbins
Bibliographic Details
Claims Analysis
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