The Webb Law Firm
Hard coat layer-forming composition and optical lens
The hard coat layer-forming composition of this invention includes (A) composite oxide fine particles with a mean particle diameter of 1 to 200 nm, containing titanium, tin and optionally silicon, and with a rutile-type crystal structure, (B) an organosilicon compound represented by the formula R1aR2bSi(OR3)4−(a+b) and/or a hydrolyzate thereof, and (C) a cyanamide derivative compound. A hard coat layer formed from the composition not only is excellent in transparency, scratch resistance, adhesion property, weathering resistance, impact resistance, etc. but also can enjoy no coloration or little coloration, particularly in bluing or yellowing, upon exposure to or irradiation with ultraviolet rays, even if an antireflection film is provided.
JGC Catalysts and Chemicals Ltd.
C C G C B G C C C C C C C C
C01P C09D G02B C01G B82Y G02B C08K C09C C08K C09D C01P C09C C09D C09D
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Yoshifumi Hirokazu Hideki Sachio
Miyano Tanaka Ito Murai