Monsanto Company

William M Baggett

LeMoyne W Plischke

Michael R Sargent

Franklin T Osborne

Patrick Byrne

Hsiang-Sheng Shen

The present invention is directed to a fiber blend useful in the manufacture of carpet yarn used for pile in carpet construction. The blend includes, by weight based on the weight of the total blend, about 40% to about 70% normally crimped fibers, about 5% to about 50% crimpset fibers and about 4% to about 40% high shrinkage fibers having a shrinkage value of from about 15% to about 50%. Carpets including pile yarn formed from the blends of the present invention exhibit superior resistance to watermarking as well as other desirable characteristics.

Fiber blend for carpet yarns and watermarking resistant carpet formed

An improved process for making point-bonded nonwoven fabric composed of crimped filaments is described. The process involves melt spinning a side-by-side bicomponent filament which develops crimp at precisely the right instant so as to provide a uniform, high quality nonwoven fabric having a soft hand and other desirable apparel qualities.

Process for manufacturing nonwoven fabrics composed of crimped filaments

Crimped side-by-side bicomponent filaments consisting of a polyamide and CaF.sub.2 are produced in which the CaF.sub.2 is dispersed in only one of the components.

Crimped polyamide filament

A process for incorporating CaF.sub.2 into polyamides is described. The process involves reacting a calcium salt with a fluoride salt in molten polyamide.

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Pensacola, FL, United States of America

William M Baggett