Cured composite, processes and composition

US5485541A · kind A · utility

Assignee

• Rohm and Haas Company · US

Inventors

• Andrew B. W. Bigley, Jr. · Croydon, US
• Jeffrey Lawrence Daecher · Sicklerville, US
• Norman L. Holy · Penns Park, US
• Robert E. Jerman · Doylestown, US
• Phelps B. Johnson · Wauwatosa, US
• William J. Work · Souderton, US

Key dates

• Filing date: May 9, 1994
• Grant date: Jan 16, 1996
• Expiry date: May 9, 2014

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2011/0075
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A process for producing a cured composite and flexible light pipe, in which a molten cladding polymer and a crosslinkable core mixture are concurrently and coaxially extruded through a core mixture delivery tube of a coextrusion die, the extruded tubular cladding is filled with the extruded crosslinkable core mixture, and the crosslinkable core mixture is cured within the tubular cladding.