Optical article comprising a surfactant-based temporary antifog coating with an improved durability
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United States of America Patent
Stats
-
May 9, 2017
Grant Date -
Jun 26, 2014
app pub date -
Jun 28, 2012
filing date -
Jul 22, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to an optical article comprising a substrate coated with a coating preferably comprising silanol groups on its surface and, directly contacting this coating, an antifog coating precursor coating, said precursor coating preferably having a static contact angle with water of more than 10° and of less than 50° and being obtained through the grafting of at least one organosilane compound possessing a polyoxyalkylene group and at least one silicon atom bearing at least one hydrolyzable group, and is further coated with a film obtained by applying a composition containing at least one surfactant of formula F(CF2)y—(CH2—CH2O)x+1H (VIII), wherein x is an integer ranging from 1 to 14, y is an integer lower than or equal to 10, compounds of formula (VIII) in which y=6 representing at least 90% by weight by weight, relative to the weight of compounds (VIII) present in the composition, so as to form an antifog coating, having preferably a static contact angle with water lower than or equal to 10°.
First Claim
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International Classification(s)
- C03C:CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREO....
- B05D:PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G02C:SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY ....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
- 2012 Application Filing Year
- C03C Class
- 612 Applications Filed
- 516 Patents Issued To-Date
- 84.32 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C03C Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 9, 2024 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 9, 2028 |
