Agricultural plastic film
US4490502A · kind A · utility
2Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1980 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | May 9, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An agricultural plastic film improved in retention of infrared radiation which comprises an olefin resin film produced by forming a composition comprising 100 parts by weight of an olefin resin (A) and 2 to 25 parts by weight of a compound oxide (B) comprising SiO.sub.2 and at least one member of the oxides of metals selected from Groups II, III and IV of the periodic table, the ratio of the refractive index (n.sub.A) of said olefin resin to that (n.sub.B) of said compound oxide, n.sub.A /n.sub.B, being within a range of 0.99 to 1.02, into film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.