Use of recycled plastics for structural building forms
US7795329B2 · kind B2 · utility
9Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2003 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Aug 25, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2949
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Modular plastic structural composites having a web section disposed along a horizontal axis and at least one flange section disposed along a horizontal axis parallel thereto and integrally molded to engage the top or bottom surface of the web section, wherein said composite is formed from a mixture of (A) high density polyolefin and (B) a thermoplastic-coated fiber material, polystyrene, or a combination thereof. Composites molded in the form of I-Beams and bridges constructed therefrom are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.