Adhesive laminate
US-2015140324-A1 · May 21, 2015 · US
Primer composition and photochromic laminate
US2018251657A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018251657-A1 |
| Application number | US-201615757275-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 1, 2016 |
| Priority date | Sep 3, 2015 |
| Publication date | Sep 6, 2018 |
| Grant date | — |
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Abstract
Official abstract text for this publication.
To provide a primer composition for optical articles which comprises (A) a polyrotaxane and (B) a resin and/or precursor thereof. This primer composition for optical articles can suppress the production of a crack in a photochromic coat layer, form a laminate structure that the photochromic coat layer is hardly scratched, and provide a primer coat layer which exhibits excellent adhesion and photochromic properties on an optical substrate.
First claim
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1 - 4 . (canceled) 5 . A primer composition for optical articles which comprises (A) a polyrotaxane and (B) a moisture-curable polyurethane comprising isocyanate groups remaining in the polyurethane molecule and substantially no phot chromic compound. 6 . The primer composition for optical articles according to claim 5 , wherein the cyc 1 ic molecules of the polyrotaxane have side chains and at least some of the side chains have a polymerizable functional group. 7 . A photochromic laminate having to photochromic coat layer and a hard coat layer formed on an optical substrate in this order, wherein a primer coat layer which is a cured body of the primer composition for optical articles of claim 5 is formed between the optical substrate and the photochromic coat layer and/or between the photochromic coat layer and the hard coat layer.
Assignees
Inventors
Classifications
Photochromic filters · CPC title
- C09D175/04Primary
Polyurethanes · CPC title
Laminated or compound lenses · CPC title
- G02B1/14Primary
Protective coatings, e.g. hard coatings · CPC title
Inclusion compounds, i.e. host-guest compounds, e.g. polyrotaxanes · CPC title
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- What does patent US2018251657A1 cover?
- To provide a primer composition for optical articles which comprises (A) a polyrotaxane and (B) a resin and/or precursor thereof. This primer composition for optical articles can suppress the production of a crack in a photochromic coat layer, form a laminate structure that the photochromic coat layer is hardly scratched, and provide a primer coat layer which exhibits excellent adhesion and pho…
- Who is the assignee on this patent?
- Tokuyama Corp
- What technology area does this patent fall under?
- Primary CPC classification C09D175/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Sep 06 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).