Patent · US Active

Monolithic building element with photocatalytic material

US7922950B2 · kind B2 · utility

1Cited by

27References

13Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Mark T. Anderson · Woodbury, US
Rachael A. T. Gould · Forest Lake, US
Jeffry L. Jacobs · Stillwater, US

Key dates

Filing date	Mar 14, 2006
Grant date	Apr 12, 2011
Priority date	—
Expiry date	Feb 25, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31935
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A building element may be formed from a first cementitious mixture and a second cementitious mixture containing a photocatalytic cementitious mixture. The first cementitious mixture and the photocatalytic cementitious mixture may be co-formed into a shaped uncured two layer monolith having a base layer of the first cementitious mixture and a top layer of the photocatalytic cementitious mixture. The shaped uncured two layer monolith is then cured. The resulting building element may be algae-resistant.

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