GB1017118A - Regenerated cellulose films - Google Patents
Regenerated cellulose filmsInfo
- Publication number
- GB1017118A GB1017118A GB1787964A GB1787964A GB1017118A GB 1017118 A GB1017118 A GB 1017118A GB 1787964 A GB1787964 A GB 1787964A GB 1787964 A GB1787964 A GB 1787964A GB 1017118 A GB1017118 A GB 1017118A
- Authority
- GB
- United Kingdom
- Prior art keywords
- viscose
- translucent
- underlay
- overlay
- cellulose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
- C08L1/06—Cellulose hydrate
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
Abstract
A shrinkable regenerated cellulose film has an underlay having incorporated therein 3-65%, based on the weight of cellulose, of translucent micaceous flakes having on the surface thereof a translucent layer of particles of titanium dioxide, zirconium dioxide, hydrated titanium dioxide or hydrated zirconium dioxide or mixtures thereof, substantially all of these particles having a major dimension of less than 0,1 micron. Preferably the thickness of the translucent layer is from 20-250 millimicrons and the proportions of the translucent micaceous flakes is from 12-20% by weight of the cellulose, and a transparent overlay. The translucent micaceous flakes may also comprise particles of a metal oxide or oxides deposited on the translucent oxide particle layer, and the translucent oxide particle layer may also comprise particles of one or more additional metal oxides. Specified metal oxides include chromic oxide and antimony trioxide. A dye may also be incorporated in the film. The film may be in the form of a secondary band closure. Such films may be made by regeneration of cupraammonium cellulose or nitrocellulose, or preferably of viscose, using a duplex die, the pigment-containing viscose forming the underlay, and a transparent viscose being supplied as well which forms the overlay. The underlay may be dyed by incorporating a dye in the underlay viscose, or the overlay may be dyed, suitably by incorporating a vat dyestuff and a reducing agent in the overlay viscose. For the underlay viscose, 3-65%, based on the weight of cellulose of the aforesaid translucent micaceous flakes are dispersed in the viscose, which together with the overlay viscose is cast through a duplex die into an acid bath to produce a shrinkable gel regenerated cellulose film. The micaceous flakes are preferably first dispersed in water and the aqueous dispersion added to the underlay viscose. Specification 974,874 and U.S.A. Specifications 1,918,383, 2,331,974 and 3,005,723 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1787964A GB1017118A (en) | 1964-04-29 | 1964-04-29 | Regenerated cellulose films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1787964A GB1017118A (en) | 1964-04-29 | 1964-04-29 | Regenerated cellulose films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1017118A true GB1017118A (en) | 1966-01-19 |
Family
ID=10102824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1787964A Expired GB1017118A (en) | 1964-04-29 | 1964-04-29 | Regenerated cellulose films |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1017118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7274141B2 (en) * | 2001-07-20 | 2007-09-25 | Novaled Gmbh | Inverted organic light emitting diode with doped layers |
-
1964
- 1964-04-29 GB GB1787964A patent/GB1017118A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7274141B2 (en) * | 2001-07-20 | 2007-09-25 | Novaled Gmbh | Inverted organic light emitting diode with doped layers |
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