Solventless Fabric Coating by Radiation Curing Part V: Flame Retardant Binders

Abstract

HISSTUDY,PARTV of a series of papers on fabric coating [ l , 2,3,41 T was devoted to the assessment of the potential of using radiation energy in curing and polymerizing reactive and non-reactive flame retardants in mixtures with the radiation curable polyurethane coating compositions. The effect of different flame retardants, oligomers and monomer compositions on cure rate, flammability and physical properties was investigated. In the development of radiation curable adhesives, binders, and coatings for textiles, flame retardancy is a desirable property in several end uses, such as apparel and upholstery. Most polyurethane coatings are not highly flammable as a result of the relatively high nitrogen content. Their flammability has been re viewed by Schmidt [51, -and Kuryla and Papa [6]. Increased flame retardancy can usually be obtained in polyurethane coatings by incorporating in the coating retardant additives such as polyhalogenated compounds, antimony oxide, and/or phosphorus compounds. In this investigation, a number of reactive and non-reactive flame retardants