Stock material or miscellaneous articles – Composite – Of quartz or glass
Patent
1988-09-14
1992-12-22
Robinson, Ellis P.
Stock material or miscellaneous articles
Composite
Of quartz or glass
428212, 428213, 428412, 428429, 428446, 428447, 428448, 428704, 428913, 359580, 359581, 359589, B32B 1706
Patent
active
051733684
ABSTRACT:
A three-layer antireflective coating composition for a CR-39 or glass substrate comprising a middle layer containing titanium compounds sandwiched between top and bottom layers containing polysiloxane, wherein the top and bottom layers are titanium-free; and a process for preparing said antireflective coating with improved adhesion on a CR-39 or glass substrate. The thicknesses of each of said coating layers is in accordance with preselected equations, and the refractive indices of said coating layers satisfy the following requirements:
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patent: 4765729 (1988-08-01), Taniguchi
Pilkington Visioncare Holdings Inc.
Robinson Ellis P.
Turner Archene A.
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