Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent
1987-08-14
1989-08-15
Robinson, Ellis P.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
428 40, 428216, 428352, 4284237, 428412, 428421, 428447, 428480, 428483, 428500, 428515, 428516, 428520, 428522, 428901, 156289, 156313, B32B 900
Patent
active
048574007
ABSTRACT:
An article of manufacture and method for assisting the lamination of printed circuits in a flat bed press, in which a stratiform sheet has a thermoplastic layer, a polymeric release layer on one side, a polymeric stabilizing layer having a melting point higher than the laminating temperature peak on the other side, both bonded to the middle thermoplastic layer which has a glass transition point lower than the laminating temperature peak, and a melting point higher than the peak, and the sheet is characterized by substantial freedom from creases, trapped gases, and contaminants between the layers, and the improved method using the stratiform sheet in a flat bed press operation.
REFERENCES:
patent: 3953924 (1976-05-01), Zachry et al.
patent: 4012307 (1977-03-01), Phillips
patent: 4064357 (1977-12-01), Dixon et al.
patent: 4064552 (1977-12-01), Angelucci et al.
patent: 4268339 (1981-05-01), Urban
patent: 4680220 (1987-07-01), Johnson
patent: 4687695 (1987-08-01), Hamby
patent: 4690845 (1987-09-01), Kloss, Jr.
patent: 4698729 (1983-10-01), Riesner et al.
Gila River Products, Inc.
Robinson Ellis P.
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