Tin-acrylate-containing polymers as algicidal agents in building materials
US5427793A · kind A · utility
32Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1993 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Apr 21, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31815
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Granular materials having a tin-acrylate polymer coating are described which are algae-resistant. A method of inhibiting the growth of algae on roofing granules and other particulate materials attached to substrates by the use of tin-acrylate-containing polymers either as a topical treatment or as a polymeric binder is also presented. The methods presented are an advancement in the art in that in addition to algae-resistance, the polymers also confer other desirable properties to the granules onto which they are coated, such as increased adhesion to asphalt shingles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.