Algal defacement of coated and non-coated porous masonry and wood construction materials is prevented by pre-treatment of the construction material with an aqueous composition of a copolymer that releases 2-propenal (acrolein) over time.

Водорослевый defacement coated и нон-non-coated пористых строительных материалов masonry и древесины предотвращен pre-treatment строительного материала с водяным составом сополимера выпускает 2-propenal (акролеин) над временем.
 
Web www.patentalert.com

< Method and apparatus for seismically retrofitting a household chimney

< Manufacturing method for structural members from foamed plastic composites containing wood flour

> Archery bow holder

> Window jamb component assembly
~ 00091