Biaxially oriented white polypropylene film, reflection plate and receiving sheet for thermal transfer recording
US8512828B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2007 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Mar 5, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/257
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A biaxially oriented white polypropylene film containing a core layer (layer A) and a skin layer (layer B), said layer B is laminated at least on one surface of said layer A, wherein said layer A contains a polypropylene resin having β-crystal activity and 1 to 20 mass % particle (a) having an average dispersed diameter of 60 to 400 nm, and wherein, said layer B contains a polypropylene resin and 0.05 to 5 mass % particle (b) of an average dispersed diameter of 1 to 4 μm. The present invention provides a biaxially oriented white polypropylene film excellent in film quality and productivity and capable of making sensitivity and productivity compatible in a high level when used as a base for a receiving sheet, and a receiving sheet for thermal transfer recording made thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.