Back to results
US 10,851,180 B2Granted
Polymer material, film, circular polarizing plate, image display apparatus, and manufacturing method for film
AssigneeKaneka Corporation
InventorsRyutaro Mukai, Hiroto Koma, Takahiro Yasumoto, Katsuya Fujisawa, Tomohiro Abo
Life of this patent
Estimating the term…
Abstract
Provided is a polymer material containing at least one kind of a cellulose derivative having (a) an organosilyl group (the organosilyl group having a first aliphatic group, an unsaturated aliphatic group, or an aromatic group), and (b) an acyl group or a second aliphatic group.
Claims20
A polymer material, comprising:
- at least one cellulose derivative having the following formula (1):
- wherein R1, R2, and R3 are each independently selected from the group consisting of i) a hydrogen atom, ii) an organosilyl group having at least one selected from the group consisting of a tertiary butyl group, a tertiary hexyl group, an isopropyl group, an isobutyl group, a phenyl group, and a naphthyl group, iii) an acyl group, and iv) a second aliphatic group, provided that the at least one cellulose derivative comprises (a) the organosilyl group and (b) an aromatic acyl group, and
- n is a positive integer.
A polymer material, comprising:
- at least one cellulose derivative having the following formula (1):
- where R1, R2 and R3 are each independently selected from the group consisting of i) a hydrogen atom, ii) an organosilyl group having a first aliphatic group, an unsaturated aliphatic group or an aromatic group, iii) an acyl group and iv) a second aliphatic group, provided that the last one cellulose derivative comprises (a) the organosilyl group and (b) a plurality of acyl groups, wherein at least one of the plurality of acyl groups is an acyl group having a 1-naphthoyl group or a 2-naphthoyl group, and
- n is a positive integer.
Dependencies are inferred from the claim text.