Patent · US Expired

Waterproofing/shaping of quarried building materials

US5021262A · kind A · utility

2Cited by

3References

6Claims

0Family size

Assignee

RHONE-POULENC CHIMIE · FR

Inventors

Gerard Bouillard · Paris, FR
Henri Chauffriat · Val-de-Reuil, FR

Key dates

Filing date	Sep 15, 1989
Grant date	Jun 4, 1991
Priority date	—
Expiry date	Sep 15, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/4935
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Quarried building materials, e.g., slate, marble and stone, are waterproofed and structurally shaped by sawing such quarried material while concomitantly introducing water into the cutting zone, and wherein the process water contains an effective waterproofing amount of a silicone emulsion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.