BLUE LIGHT-BLOCKING RESIN COMPOSITION
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United States of America Patent
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app pub date -
Aug 6, 2014
filing date -
Nov 18, 2013
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Abstract
Embodiments of the invention provide a resin composition for optical articles, which has a blue light-blocking function, is white and transparent, and does not look yellow; and a laminate. According to at least one embodiment, the resin composition includes (A) 1 to 5 parts by mass of white inorganic microparticles and (B) 100 parts by mass of a transparent base resin. The resin composition is characterized in that (i) the white inorganic microparticles have an average particle diameter of 10 to 80 nm and (ii) the difference between the refractive index of the white inorganic microparticles and the refractive index of the base resin is 0.1 or more. According to at least one embodiment, there is provided a laminate which includes a hard coat layer or a cohesive/adhesive agent layer each made from the resin composition and a poly(meth)acrylic imide resin film layer.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
RIKEN TECHNOS CORPORATION | 2-101 KANDA-AWAJICHO CHIYODA-KU TOKYO 1018336 |
International Classification(s)

- 2014 Application Filing Year
- C09J Class
- 1048 Applications Filed
- 793 Patents Issued To-Date
- 75.67 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
YAMADA, Kazutaka | Tokyo, JP | 54 | 498 |
# of filed Patents : 54 Total Citations : 498 |
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Patent Citation Ranking
- 0 Citation Count
- C09J Class
- 0 % this patent is cited more than
- 9 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 20, 2028 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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