Cement composition for extrusion
US5047086A · kind A · utility
97Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1989 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Apr 28, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A cement composition for extrusion which is produced by incorporating, into cement mortar, 3 to 15 weight % of crushed pulp fiber, 0.2 to 1 weight % of at least one member selected from an alkylcellulose and a hydroxyalkylalkyllcellulose, and a 2% water solution having a viscosity of 80,000 cps or more allows for reduced production costs by reducing the loads of the binder material using a pulp fiber without carcinogenicitic asbestos fiber. Furthermore, it allows for excellent extrudability and provides the moldings with workability such as nailing and sawing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.