Spunbond polyester fiber webs
AssigneeJohns Manville
InventorsKiarash Alavi Shooshtari, James Patrick Hamilton, Jawed Asrar
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Abstract
Provided are spunbond polyester mats using an improved curable composition. The curable composition comprises a reaction product of an amine and a reactant in the form of an amino-amide intermediate. To the amino-amide is added an aldehyde or ketone to form the curable binder composition. The composition when used as a binder in the mat is cured to form a water-insoluble binder which exhibits good adhesion and thermodimensional stability.
Claims20
A spunbond polyester mat comprising a binder comprised of a reaction product of an aldehyde or ketone with an amino-amide, which is a reaction product of a diamine and an unsaturated or saturated reactant, with the reactant selected from the group consisting of saturated and unsaturated anhydrides, carboxylic acids, esters, inorganic acids, salts and mixtures of these.
A method for preparing a spunbound polyester mat, comprising the step of coating polyester fibers or continuous filaments with a binder composition comprised of a reaction product of an aldehyde or ketone with an amino-amide, which is a reaction product of an diamine and a reactant selected from the group consisting of saturated and unsaturated anhydride, carboxylic acids, esters, inorganic acids, salts and mixtures thereof.
Dependencies are inferred from the claim text.