Nonwoven fabric having both UV stability and flame retardancy
AssigneeBBA Nonwovens Simpsonville, Inc.
InventorRamesh Srinivasan
Life of this patent
Estimating the term…
Abstract
A nonwoven fabric with UV stability and flame retardancy having at least one fabric layer. The fabric layer is made of a base resin, preferably polyolefinic, and a non-halogenated melt processable compound that is selected from the group consisting of N-alkyoxy amines and are combined into a homogeneous blend which is then either spunbonded or meltblown to form the fabric layer. A melt processable fluorochemical additive may also be combined into the homogeneous blend to provide liquid barrier properties to the fabric layer.
Claims12
A nonwoven fabric with UV stability and flame retardancy characteristics having at least one fabric layer, the fabric layer comprising:
- a resin selected from the group consisting of polypropylene, polyethylene, polyester, and polymide;
- and
- a non-halogenated melt processable N-alkoxy amine compound that is the reaction product of 1,3-propanediamine-N,N″-1,2-ethanediylbis-, peroxidized N-butyl-2,2,6,6-tetramethyl-4-piperidinamine-2,4,6-trichlor-1,3,5-triazine and cyclohexane, and which is present in the fabric layer in an amount between 0.3 and 1.5 wt. %;
- wherein said resin and said compound are combined into a homogenous blend which is either spunbounded or meltblown to form the fabric layer, and wherein said compound imparts both UV stability and flame retardancy qualities to the fabric layer.
Dependencies are inferred from the claim text.