Basf Corporation

Other

George M Kent

Karen L Johnson

Dean R Gadoury

Karl Ott

Dominick A Burlone

Matthew B Hoyt

Otto M Ilg

Ardy Armen

Awni Sammakia

Randy L Mumford

A blend of melamine resin fibers, aramid fibers and/or modacrylic fibers produces compositions and products having superior fire blocking characteristics, as well as superior strength, manufacturing and end-user comfort characteristics.

Fire escape blanket and other melamine resin containing compositions and products with fire blocking properties

A process for improving the ultraviolet stability of aramid and aramid-blend fabrics by pigment printing or padding the fabrics. The pigment printing process comprises the steps of supplying an aramid textile fabric free of highly polar solvents and dye diffusion promoting agents; pigment printing the fabric by applying onto the fabric a print paste comprising pigment, binder, print paste thickener, and water, the print paste being substantially free of carriers; and drying, then curing the thus-treated fabric at a temperature and for a time sufficient to fix the pigment on the aramid fibers. The padding process comprises the steps of supplying an aramid textile fabric; padding the fabric by soaking in a padding liquor comprising pigment, binder, and water, the padding liquor being substantially free of carriers; and then passing the wet fabric through two rollers to remove excess padding liquor from the fabric; and drying, then curing the thus-treated fabric at a temperature and for a time sufficient to fix the pigment on the aramid fibers.

Ultraviolet stability of aramid and aramid-blend fabrics by pigment dyeing or printing

Fabrics made of melamine fibers are made more comfortable by submerging them for at least 20 minutes in a dyebath or mock dyebath that is at least 70&deg; C.

Comfort melamine fabrics and process for making them

Fabrics containing melamine fibers are rendered more comfortable by carding the melamine fibers under vacuum so as to exhibit a narrower fiber diameter distribution (.delta..sub.d) and/or a narrower staple length distribution (.delta..sub.1) as compared to melamine fibers which are carded in the absence of vacuum. In addition, more comfortable melamine fiber-containing yarns are produced by spinning the staple fiber at a lower twist multiplier (TM) as compared to conventional melamine fiber yarns. Most preferably, the melamine fiber-containing fabrics and yarns will be blended with at least one other type of synthetic fibers, such as aramid fibers.

Melamine fiber-containing fabrics with improved comfort

Fabrics containing melamine fibers are rendered more comfortable by carding the melamine fibers under vacuum so as to exhibit a narrower fiber diameter distribution (.delta..sub.d) and/or a narrower staple length distribution (.delta..sub.l) as compared to melamine fibers which are carded in the absence of vacuum. In addition, more comfortable melamine fiber-containing yarns are produced by spinning the staple fiber at a lower twist multiplier (TM) as compared to conventional melamine fiber yarns. Most preferably, the melamine fiber-containing fabrics and yarns will be blended with at least one other type of synthetic fibers, such as aramid fibers.

Melamine-containing fabrics with improved comfort

Fabrics made of melamine fibers are made more comfortable by submerging them for at least 20 minutes in a dyebath or mock dyebath that is at least 70.degree. C.

A continuous process for spinning and drawing polyamide filaments with the steps of melting a polyamide and spinning the filaments from the molten polyamide through a spinnerette, quenching the filaments, applying a yarn finish to the filaments, applying steam and heat to the filaments by a steam and heating unit which consists of a steam box and at least one heated godet, drawing the filaments, and optionally texturing the filaments. The resulting filaments have low shrinkage, high crystallinity, and a high percentage of alpha crystals.

Continuous process for spinning and drawing polyamide and apparatus

Fabric useful for processing into a fiber reinforced composite is made from multicomponent yarn having a thermoplastic matrix component of a first melting point if crystalline or a first softening point if not crystalline and a drawable, oriented, fibrous thermoplastic reinforcing component of a second melting point if crystalline or a second softening point if not crystalline, wherein said first melting or softening point is at least 5.degree. C. below said second melting or softening point.

Growing community of inventors

Arden, NC, United States of America

George M Kent