Fibre reinforced shaped solid articles
US5338357A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Aug 3, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2933
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to shaped solid articles manufactured with a hydraulically setting composition comprising water, hydraulic binders and reinforcing fibres and moreover process fibres in an amount of 0-10 wt % with respect to total dry mix and fillers in an amount of 0-50 wt % with respect to total dry mix wherein the reinforcing fibres comprise from 0.1 to 5 wt % with respect to total dry mix of highly crystalline polypropylene fibres possessing a fibre breakage strength of over 490 N/mm.sup.2, having Q<5 and 97<HI<100, and 94<IPF<100, Q being the ratio of weight-average molecular weight to number-average molecular weight, HI being the boiling n-heptane insoluble content in wt % with respect to the total polymer and IPF being the isotactic pentad fraction in mol %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.