Starch/polymer mixture, process for the preparation thereof, and products obtainable therefrom
US5346936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1992 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Jun 15, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A biodegradable, single-phase starch/polymer mixture comprising PA0 (a) 10 to 99 parts of a starch molding composition comprising PA1 (i) 95 to 45 parts of at least one chemically modified starch, and PA1 (ii) 5 to 55 parts of at least one emulsifier, plasticizer or destructurizing agent, the parts of (i) and (ii) adding up to 100; and PA0 (b) 90 to 1 parts of at least one linear polymer, the parts by weight of components (a) and (b) adding up to 100. In addition, 0 to 20 parts of additives which are customary in this area are included. A method of preparation, and the use thereof for thermoplastically molded parts, in particular films, is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.