Aqueous processable, multilayer, photoimageable permanent coatin

Details Aqueous processable, multilayer, photoimageable permanent coatin Aqueous processable, multilayer, photoimageable permanent coatin

1995-04-28

1997-07-01

Ryan, Patrick

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428195, 428483, 428901, 430262, B32B 900

Patent

active

056436572

ABSTRACT:
An aqueous processable, photoimageable element for use as a permanent coating for the protection of printed circuits composed of multiple layers of photoimageable compositions has suffiently low tack to avoid premature adhesion to the printed circuit substrate but develops good adhesion to the circuit substrate upon application of heat and pressure during lamination.

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patent: 4247621 (1981-01-01), Sano et al.
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patent: 4352870 (1982-10-01), Howard et al.
patent: 4438189 (1984-03-01), Geissler et al.
patent: 4506004 (1985-03-01), Sullivan
patent: 4621043 (1986-11-01), Gervay
patent: 4937172 (1990-06-01), Gervay
patent: 4987054 (1991-01-01), Sondergeld et al.
patent: 5288589 (1994-02-01), McKeever

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