Invention Grant
- Patent Title: Multilayered chromonic structures
- Patent Title (中): 多层发色结构
-
Application No.: US12554441Application Date: 2009-09-04
-
Publication No.: US07993748B2Publication Date: 2011-08-09
- Inventor: Sanat Mohanty , Hassan Sahouani , Cristin E. Moran
- Applicant: Sanat Mohanty , Hassan Sahouani , Cristin E. Moran
- Applicant Address: US MN Saint Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN Saint Paul
- Agent Gregory D. Allen
- Main IPC: B32B5/16
- IPC: B32B5/16 ; C09K19/52

Abstract:
A method of making a multilayered chromonic structure comprises (a) preparing a first aqueous mixture comprising (i) a first continuous water-soluble polymer phase and (ii) a first discontinuous chromonic phase comprising a chromonic material, to form chromonic nanoparticles; (b) non-covalently crosslinking the resulting chromonic nanoparticles with a multivalent cation salt; (c) dispersing the resulting crosslinked chromonic nanoparticles in a composition comprising a chromonic material to form a chromonic nanoparticle dispersion; and (d) preparing a second aqueous mixture comprising (i) a second discontinuous chromonic phase comprising the chromonic nanoparticle dispersion and (ii) a second continuous water-soluble polymer phase, to encapsulate the chromonic nanoparticles; wherein at least one of the first discontinuous chromonic phase and the second discontinuous chromonic phase further comprises a guest compound.
Public/Granted literature
- US20090324955A1 MULTILAYERED CHROMONIC STRUCTURES Public/Granted day:2009-12-31
Information query