Invention Grant
- Patent Title: Method of making opacifying articles
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Application No.: US16131351Application Date: 2018-09-14
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Publication No.: US11275203B2Publication Date: 2022-03-15
- Inventor: Mridula Nair , Mary Christine Brick
- Applicant: Eastman Kodak Company
- Applicant Address: US NY Rochester
- Assignee: Eastman Kodak Company
- Current Assignee: Eastman Kodak Company
- Current Assignee Address: US NY Rochester
- Agent J. Lanny Tucker
- Main IPC: G02B5/00
- IPC: G02B5/00 ; C08L1/14 ; A47H23/10 ; E06B9/24 ; B32B37/12 ; B32B37/18

Abstract:
An opacifying article can be made using a (i) fabric having a face side and a back side and an (ii) opacifying element having a substrate that has first and second opposing surfaces; and a dry opacifying layer that has an inner surface and an outer surface. The dry opacifying layer is disposed with its inner surface in contact with the first opposing surface of the substrate. The dry opacifying layer has (a) 40-90 weight % of porous particles, each having a continuous polymeric phase and discrete pores dispersed within the continuous polymeric phase. The porous particles have a mode particle size of 2-50 μm and a porosity of 20-70 volume %. The dry opacifying layer also contains (b) 10-60 weight % of a binder material. The (ii) opacifying element is laminated to the back side of the fabric to provide the opacifying article.
Public/Granted literature
- US20200088915A1 METHOD OF MAKING OPACIFYING ARTICLES Public/Granted day:2020-03-19
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