A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
VAPOR RETARDING BUILDING MATERIALS AND METHODS FOR MAKING THEM
The present disclosure relates generally to vapor retarding building materials and methods for making them. The present inventors have found simple and cost-efficient materials that have low water vapor permeability at low relative humidities and that can be provided as a coating on a building material substrate. Notably, in many embodiments, the materials can have high water vapor permeability at high relative humidities. In one embodiment, the disclosure provides vapor retarding articles comprising a building material substrate; and a polymeric coating layer coated on the building material substrate, the polymeric coating layer comprising an inorganic hydrophilic particulate filler dispersed in a continuous organic phase comprising a hydrophobic polymer, wherein the content of the filler is from about 30% to about 85% by weight of the polymeric coating layer, the vapor retarding article configured to have a water vapor permeance of no more than about 1 Perm at 25% relative humidity.
VAPOR RETARDING BUILDING MATERIALS AND METHODS FOR MAKING THEM
The present disclosure relates generally to vapor retarding building materials and methods for making them. The present inventors have found simple and cost-efficient materials that have low water vapor permeability at low relative humidities and that can be provided as a coating on a building material substrate. Notably, in many embodiments, the materials can have high water vapor permeability at high relative humidities. In one embodiment, the disclosure provides vapor retarding articles comprising a building material substrate; and a polymeric coating layer coated on the building material substrate, the polymeric coating layer comprising an inorganic hydrophilic particulate filler dispersed in a continuous organic phase comprising a hydrophobic polymer, wherein the content of the filler is from about 30% to about 85% by weight of the polymeric coating layer, the vapor retarding article configured to have a water vapor permeance of no more than about 1 Perm at 25% relative humidity.
VAPOR RETARDING BUILDING MATERIALS AND METHODS FOR MAKING THEM
DAMPFRETARDIERENDE BAUSTOFFE UND VERFAHREN ZU DEREN HERSTELLUNG
MATÉRIAUX DE CONSTRUCTION À RETARDEMENT DE VAPEUR ET PROCÉDÉS POUR LEUR FABRICATION
COOGAN TIMOTHY JEROME (author) / PEET JEFFREY H (author) / MASSARA VALERIO (author) / KNAPP KENNETH D (author)
2021-03-31
Patent
Electronic Resource
English
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