Method for producing polymer impregnated foamed masonry elements
US4002708A · kind A · utility
10Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1971 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Oct 28, 1991 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B41/61
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A two-phase material of foamed cement or concrete and polymer providing thermal insulating, structural elements composed of an unimpregnated foam cement or concrete core and impregnated surface regions of the two-phase material and method employing a hydraulic head or vacuum means to provide high polymer loading through a large volume of foam voids in the cement or concrete for easy impregnation of high viscosity monomers and uncured resins to a considerable depth below the surface of the cement or concrete before in situ polymerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.