Lightweight composite article with controlled biodegradation
US8383247B2 · kind B2 · utility
1Cited by
19References
16Claims
0Family size
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Key dates
| Filing date | Nov 10, 2008 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Nov 10, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31986
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A lightweight composite article with controlled biodegradation includes a fibrous substrate and one or more additives applied to the fibrous substrate to control the rate of biodegradation of the composite article. The composite article has a weight of less than about 57 grams per square meter, and a biodegradation within a range of from about 30 days to about 150 days. In some embodiments, the additives include one or more of water repellent, antimicrobial agent and biodegradable binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.