Method of making perforated vinyl film ceiling board

Details Method of making perforated vinyl film ceiling board Method of making perforated vinyl film ceiling board

1974-02-25

1976-05-04

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

181 33GA, 428137, B32B 310, E04B 186

Patent

active

039545407

ABSTRACT:
A standard fiber composition ceiling board is provided with an outer laminate of plasticized vinyl film. The holes in the film are smaller than the holes in the fiber composition ceiling board. The product is made by laminating the vinyl film to the ceiling board, then perforating the film and the ceiling board with pin punches. The perforations in the board stay at the size at which they are formed, while the holes in the film shrink in size.

REFERENCES:
patent: 1959057 (1934-05-01), Kliefoth
patent: 3137364 (1964-06-01), Akerson
patent: 3422920 (1969-01-01), Greason et al.
Wilde, G., et al., Plasticizers, In Modern Plastics Encyclopedia, Vol. 46, No. 10A, Oct. 1969, pp. 286, 288, 290.

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