Illuminated switches and rubber material for the cover piece the

Details Illuminated switches and rubber material for the cover piece the Illuminated switches and rubber material for the cover piece the

1993-11-19

1995-04-18

Seidleck, James J.

Stock material or miscellaneous articles

Sheet including cover or casing

Including elements cooperating to form cells

428195, 428201, 428206, 428209, 200312, 200314, 427555, 427400, B32B 300

Patent

active

054077214

ABSTRACT:
A finger touch member of an illuminated switch prepared by a process comprising printing or coating a surface of a multicomponent rubber material composed of, as essential components, 90-70% by weight of EPDM and 5-30% by weight of liquid polymerized butadiene rubber, with an ink of contemplated color, covering the entire top face of the resulting printed or coated cover piece with a light blocking coating layer and irradiating the so covered top face with a laser beam to cut out the coating layer in a contemplated pattern.

REFERENCES:
patent: 4656078 (1987-04-01), Goto
patent: 5234744 (1993-08-01), Kenmochi

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