Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties. More particularly, ballistic resistant fibrous composites having high interlaminar lap shear strength between component fiber plies or fiber layers, which correlates to low composite backface signature. The high lap shear strength, low backface signature composites are useful for the production of hard armor articles, including helmet armor.

According to some aspects, water repellent treatments for fabrics. More particularly, systems and methods for water repellant treatment of protective fabrics for ballistic and other applications, and protective fabrics made using such techniques.

According to some aspects, water repellent treatments for fabrics. More particularly, systems and methods for water repellant treatment of protective fabrics for ballistic and other applications, and protective fabrics made using such techniques.

The present invention provides a carbon fiber cord having both high bending fatigue resistance and high adhesiveness. The disclosed carbon fiber cord is a carbon fiber cord for reinforcing a rubber product. This carbon fiber cord includes a carbon fiber, a first coating layer formed on the carbon fiber, and a second coating layer formed over the first coating layer. The first coating layer contains a phenolic resin and does not contain a rubber component. The second coating layer contains a rubber component. The mass ratio of the first coating layer to the total mass of the carbon fiber and the first coating layer is in a range of 0.5% to 10%.

The present invention provides a carbon fiber cord having both high bending fatigue resistance and high adhesiveness. The disclosed carbon fiber cord is a carbon fiber cord for reinforcing a rubber product. This carbon fiber cord includes a carbon fiber, a first coating layer formed on the carbon fiber, and a second coating layer formed over the first coating layer. The first coating layer contains a phenolic resin and does not contain a rubber component. The second coating layer contains a rubber component. The mass ratio of the first coating layer to the total mass of the carbon fiber and the first coating layer is in a range of 0.5% to 10%.

The present disclosure relates to an aqueous binder composition, comprising a) at least one polymer P constructed from 0.1 and 2.5 wt % of at least one acid-functional ethylenically unsaturated monomer (monomers A) 0 and 4.0 wt % of at least one ethylenically unsaturated carboxylic acid nitrile or dinitrile (monomers B) 0 and 2.0 wt % of at least one crosslinking monomer having two or more nonconjugated ethylenically unsaturated groups (monomers C) 0 and 10 wt % of at least one ,-monoethylenically unsaturated C.sub.3 to C.sub.6 mono- or dicarboxamide (monomers D) 25 and 69.9 wt % of at least one ethylenically unsaturated monomer whose homopolymer has a glass transition temperature 30 C. and which differs from the monomers A to D (monomers E), and 30 and 70 wt % of at least one ethylenically unsaturated monomer whose homopolymer has a glass transition temperature 50 C. and which differs from the monomers A to D (monomers F), in polymerized form, wherein the amounts of monomers A to F sum to 100 wt %, and b) at least one saccharide compound S, the amount of which is determined such that it is 10 and 400 parts by weight per 100 parts by weight of polymer P.

This invention relates to regenerable antimicrobial coatings with long-lasting efficacy for use in medical applications including implants, medical instruments or devices, and hospital equipment. The same coatings would also have broad utility in the consumer, industrial, and institutional markets. The coating technology would be based on sequestration of hydrogen peroxide (HP) by zinc oxide binders incorporated into the coatings.

A process for producing a tapered multifilament yarn comprising feeding a drawable filament to a drawing apparatus and changing the take-over speed relative to the feed speed of the filament in order to change the thickness of the filament in a longitudinal direction, characterized by making the take-over speed slower than the feed speed under heating in a part of the filament in the longitudinal direction and thereby shrinking and thickening the part of the filament. According to the process, the ratio of the thickness of the thickest part of the tapered multifilament yarn to the thickness of the thinnest part thereof can be easily increased.

A process for producing a tapered multifilament yarn comprising feeding a drawable filament to a drawing apparatus and changing the take-over speed relative to the feed speed of the filament in order to change the thickness of the filament in a longitudinal direction, characterized by making the take-over speed slower than the feed speed under heating in a part of the filament in the longitudinal direction and thereby shrinking and thickening the part of the filament. According to the process, the ratio of the thickness of the thickest part of the tapered multifilament yarn to the thickness of the thinnest part thereof can be easily increased.

Compositions and methods are described that provide cellulosic and non-cellulosic fabrics with durable antimicrobial properties. Application of a coating that includes polyhexamethylene biguanide, polyethylene glycol, and a binder to a fabric followed by drying and curing was found to provide antimicrobial properties that are retained through over 100 washings under aggressive hospital washing conditions. In addition, tactile properties and tear resistance of the treated fabrics are maintained or improved.