Metal working – Method of mechanical manufacture – Roller making
Patent
1996-05-14
1997-12-09
Cuda, Irene
Metal working
Method of mechanical manufacture
Roller making
2989521, 29 33Q, 492 48, B23P 1500
Patent
active
056946880
ABSTRACT:
A paint roller cover with thermoplastic core and method and apparatus for making same by spirally wrapping a strip of hot extruded thermoplastic film onto an exterior surface of hollow thermoplastic tubing and spirally wrapping a strip of fabric having a thermoplastic backing onto the spiral wound strip of thermoplastic film while the thermoplastic film is still sufficiently hot to cause the thermoplastic film to flow into interstices in the thermoplastic backing of the fabric and permanently bond the fabric to the exterior surface of the tubing. The fabric covered tubing is then cooled and separated into a plurality of individual lengths of fabric covered tubes.
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Himont Development Data Sheet (1 page) for "Polypropylene for High-Speed Extrusion Coating and Laminating", 1985, 1988.
Himont Product Data Sheet No. 510-2 (2 pages) for "Propylene Copolymers for High Extrudate Strength", 1985, 1988.
Barker Richard L.
Bochnak Bruce E.
Gerardo Serafin J.
Humphrey Dennis D.
Musch Gordon F.
Cuda Irene
The Wooster Brush Company
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