See-through concrete form
US5431366A · kind A · utility
9Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1994 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Apr 28, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G2009/028
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A concrete form a part of which is made of a fiber-reinforced thermoplastic resin, said fiber-reinforced thermoplastic resin satisfying the following conditions: EQU Tt(C).gtoreq.Tt(M)-1.5.alpha. EQU 15.ltoreq.Tt(c) wherein Tt(C) (%) is total transmittance of the fiber-reinforced thermoplastic resin measured at the thickness of top board, .alpha. (% by weight) is fiber weight fraction of the fiber-reinforced thermoplastic resin, and Tt(M) (%) is total transmittance of the matrix resin measured at the same thickness as above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.