Article having a predetermined surface shape and method for preparation thereof
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United States of America Patent
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Feb 1, 2005
Grant Date -
Aug 7, 2003
app pub date -
Oct 28, 2002
filing date -
Feb 28, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An article having a predetermined surface configuration comprising a substrate and a gelled film having a high refractive index, excellent heat resistance, high film hardness and excellent transferability formed on the surface of the substrate. A process for producing an article having a gelled film with a transferred surface on the surface of a substrate by arranging a sol-gel material with close contact between the substrate and a mold in the form of a film and heating it. The sol-gel material contains a metal compound represented by M.sup.1 X.sub.m, a hydrolyzate thereof or a hydrolysis/polycondensation product thereof, and a metal compound represented by R.sup.1 M.sup.2 Y.sub.n, a hydrolyzate thereof or a hydrolysis/polycondensation product thereof, wherein at least one of M.sup.1 and M.sup.2 is a metal atom selected from Ti, Zr, Al, Ge, Sn or Sb and the metal atom accounts for at least 10 atom % of the total of M.sup.1 and M.sup.2.
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