Electrical laminate having ability to absorb ultraviolet rays

Details Electrical laminate having ability to absorb ultraviolet rays Electrical laminate having ability to absorb ultraviolet rays

1991-09-05

1992-11-03

Sluby, P. C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428417, 428418, 428460, 428241, 428285, 428901, B32B 1508

Patent

active

051607875

ABSTRACT:
An electrical laminate having an ability to absorb or shield ultraviolet rays having wavelength of 300-420 nm which comprises (i) at least one thermosetting resin-impregnated substrate, (ii) said substrate and a metal foil or (iii) said substrate, a metal foil and an adhesive layer for the metal foil comprising a thermosetting resin, characterized in that the thermosetting resin constituting part or all of said substrates or constituting said adhesive layer contains 0.2-6.0% by weight of a light absorber (A) on the basis of weight of the thermosetting resin, said light absorber is (a) an alkylthioxantone or a mixture of (a) said alkylthioxantone and (b) an ultraviolet rays-absorber.

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