Biodegradable composition and products
US5254598A · kind A · utility
15Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1991 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Dec 9, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2984
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A biodegradable composition comprising a polymer matrix having distributed substantially uniformly therethrough hollow sphere-like inclusions or microcapsules, said polymer matrix consisting essentially of a water-soluble polymer/polymer-compatible salt complex with said salt present in an amount sufficient to render said polymer insoluble in water and products made by shaping such composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.