Protein-starch binary molding composition and shaped articles obtained therefor
US4076846A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1975 |
| Grant date | Feb 28, 1978 |
| Priority date | — |
| Expiry date | Nov 12, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0059
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An edible, water-soluble, thermoplastic molding composition comprising a starch material, a neutral inorganic alkali salt of protein material, water, an edible plasticizer, an edible lubricant, and other additives. This composition shows excellent moldability and processability when subjected to various constomery dry processes for molding and processing customary plastics, such as compression molding, transfer molding, extrusion molding, blow molding, inflation molding, injection molding, vacuum forming, pressure forming, heat sealing, etc. Transparent or translucent shaped articles obtained from the above composition have unique properties such as gas impermeability, solubility in water, edibility, biodegradability, etc., and may be utilized with favorable results in various fields such as food industry, feedstuff industry, agriculture, fisheries, etc. The shaped articles, if necessary, can be allowed to have any balance between its water resistance and its water-solubility by ultraviolet irradiation or by the incorporation of a protein-coagulating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.