Cellulose ester film, cellulose ester dope, protective film of polarizing plate and polarizing plate
US7494611B2 · kind B2 · utility
8Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2005 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Jan 23, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a cellulose ester film comprising a polymer prepared by polymerizing at least one ethylenically unsaturated monomer selected from vinyl esters, vinyl esters having a functional group, acrylic esters, and acrylic esters having a functional group, wherein the polymer has a weight average molecular weight of not more than 5,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.