04241555 is referenced by 86 patents and cites 2 patents.

A building panel has an expanded plastic core with thin reinforcing strips bonded to front and back surfaces of the core, at least along the edges thereof, and may have a wire grid attached in offset relation to one surface thereof for receiving a material such as concrete. The panel is manufactured by a process of expanding a plastic material in a mold by the application of heat to form a core, removing the core from the mold, placing thin reinforcing strips on front and back surfaces of the core with an adhesive system between strips and core, returning the core to the mold and heating the interior of the mold to bond the strips to the core and achieve dimensional stability during molding.

Title
Composite panel structure and method of manufacture
Application Number
659758
Publication Number
4241555
Application Date
May 30, 1978
Publication Date
December 30, 1980
Inventor
William C Nanny
San Francisco
CA, US
Luther I Dickens
Radford
VA, US
Agent
Alvin E Hendricson
Assignee
Radva Plastics Corporation
VA, US
IPC
E04C 2/26
E04C 2/18
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