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US 2021/0198536 A1Published application
Phase separated articles
Assignee3M Innovative Properties Company
InventorsEncai HAO, Zhicheng TIAN, Dong-Wei ZHU, Zhaohui YANG, James P. DIZIO, Ying ZHANG, Junkang J. LIU, Kent C. HACKBARTH
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Abstract
Phase separated articles that include a matrix phase including an acrylate copolymer; and a silicone elastomer phase stably dispersed in the matrix phase. Methods of forming phase separated articles, and articles including phase separated articles are also included.
Claims27
1:
- A phase separated article comprising:
- a matrix phase comprising an acrylate copolymer;
- and
- a silicone elastomer phase stably dispersed in the matrix phase.
1 more element
2:
- A pressure sensitive adhesive article, the article comprising:
- a matrix phase comprising an acrylate copolymer;
- and
- a silicone elastomer phase stably dispersed in the matrix phase.
1 more element
3:
- An optical article, the optical article comprising:
- a matrix phase comprising an acrylate copolymer;
- and
- a silicone elastomer phase stably dispersed in the matrix phase.
1 more element
4:
- A display device comprising:
- an organic light emitting diode;
- and
- a layer of phase separated article comprising:
- a matrix phase comprising an acrylate copolymer;
- and
- a silicone elastomer phase stably dispersed in the matrix phase.
4 more elements
5:
- A display device comprising:
- an organic light emitting diode;
- and
- a phase separated pressure sensitive adhesive article comprising:
- a matrix phase comprising an acrylate copolymer;
- and
- a silicone elastomer phase stably dispersed in the matrix phase.
4 more elements
6:
- A method of forming a phase separated article, the method comprising:
- preparing a solution polymer by radically copolymerizing a composition comprising functionalized silicone elastomer and acrylate monomers in at least one solvent;
- forming a film comprising the solution polymer composition;
- and
- drying and curing the film to form the phase separated article.
2 more elements
7:
- A method of controlling optical properties of a phase separated article, the method comprising:
- preparing a solution polymer by radically copolymerizing a composition comprising functionalized silicone elastomer and acrylate monomers in at least one solvent to form a coating composition.
8:
- The article of claim 1, wherein the silicone elastomers comprise siloxane polyoxamide elastomers.
9:
- The article of claim 1, wherein the silicone elastomers are selected from silicone polyoxamide-type block copolymers.
10:
- The article of claim 1, wherein the silicone elastomers have an inherent viscosity (IV) of at least 0.5.
11:
- The article of claim 1, wherein the silicone elastomers have an IV of at least 0.8.
12:
- The article of claim 1, wherein the silicone elastomers have an IV of not greater than 2.8.
13:
- The article of claim 1, wherein the silicone elastomers have an IV of not greater than 1.2.
14:
- The article of claim 1, wherein the silicone elastomer phase has an average domain size of not less than 1 micrometer (μm).
15:
- The article of claim 1, wherein the silicone elastomer phase has an average domain size of not less than 2 micrometer (μm).
16:
- The article of claim 1, wherein the silicone elastomer phase has an average domain size of not greater than 8 micrometer (μm).
17:
- The article of claim 1, wherein the silicone elastomer phase has an average domain size of not greater than 5 micrometer (μm).
18:
- The article of claim 1, wherein the matrix phase further comprises one or more compatibilizers or residues thereof.
19:
- The article of claim 18, wherein the compatibilizer or residue thereof is selected from isocyanatoethyl methacrylate (IEM), PDMS diamines, and combinations thereof.
20:
- The article of claim 19, wherein the molecular weight of the PDMS diamines are from 500 g/mol to 100,000 g/mol.
21:
- The article of claim 19, wherein the molecular weight of the PDMS diamines are from 10,000 g/mol to 50,000 g/mol.
22:
- The article of claim 19, wherein the molecular weight of the PDMS diamines are from 20,000 g/mol to 35,000 g/mol.
23:
- The article according to claim 2, wherein the article has a thickness from 10 to 30 micrometers.
24:
- The display device of claim 4 further comprising optically clear adhesives, circular polarizer, touch sensors, cover glass, or combination thereof.
25:
- The display device of claim 3 having an off-axis color shift (0-45°) that is at least 5% better than an off-axis color shift compared to a display device that includes a non-diffusive optically clear adhesive in place of the polymeric film.
26:
- The display device of claim 25 having an off-axis color shift (0-60°) that is at least 5% better than an off-axis color shift compared to a display device that includes a non-diffusive optically clear adhesive in place of the polymeric film.
(canceled)
Dependencies are inferred from the claim text.