Method of forming lamina and block laminates

Details Method of forming lamina and block laminates Method of forming lamina and block laminates

1978-04-21

1980-01-08

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156155, 264 454, 264 49, 264293, 264340, 264DIG7, 428306, 428315, 521 54, 521137, B32B 518

Patent

active

041826418

ABSTRACT:
A method of forming a laminate composed of a solid polyester lamina bonded to a block. A block having a matrix composed of polyurethane foam and particles of expanded polystyrene distributed therein is prepared. A layer composed of a solution of a relatively unpolymerized polyester in styrene solvent with fiberglass embedded therein is placed in contact with a surface of the block. The styrene solution of polyester dissolves polystyrene particles adjacent such block surface, leaving recesses distributed in the block matrix. These recesses become at least partially filled with the polyester solution. The solution is then cured to produce a solid resin lamina which is joined with polymerized resin contained in the matrix recesses to secure the lamina to the block.

REFERENCES:
patent: 3256218 (1966-06-01), Knox
patent: 3431319 (1969-03-01), Baum
patent: 3507738 (1970-04-01), Prusinski et al.
patent: 3577363 (1971-05-01), Klug
patent: 3637459 (1972-01-01), Parish et al.
patent: 4121008 (1978-10-01), Seddon

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