Alliedsignal Inc.

Honeywell International Inc.

Allied Corporation

Dsm N.v.

Tissue Technologies, LLC

Tissue Technologies Holdings, LLC

Yousef Mohajer

Stanley D Lazarus

Charles J Nelson

Frank Mares

John Armstrong Young

William B Fisher

Robert A Lofquist

Peter Bryan Rim

Conor J Twomey

Scott Martin Hacker

Kundan M Patel

Robert S Cooke

Jan Agnes Hendrix

Kelman I Cohen

Forrest E Sloan

Irwin Kelman Cohen

Thomas Paul Izod

Arnoldus M Kerssemakers

Transition metal (e.g., silver and copper) derivatized phosphorylated polysaccharides (cellulose, starch, gauze) provide antimicrobial and elastase sequestration properties to wound dressings, and the wound dressing have enhanced water sorption and elastase sequestration when used with alginates. Wound dressings with alginates (e.g., silver alginate, crosslinked alginates, etc.) provide enhanced wound fluid absorption as well as elastase sequestration.

Wound dressings containing complexes of transition metals and alginate for elastase-sequestering

Novel phosphate starch derivatives are useful in wound healing. Novel phosphorylated cottons are useful in wound healing. Silver-derivatized wound care products are provided which survive washing and remain part of the wound care product. Silver-derivatized wound care products are provided that have favorable elastase-sequestering activity while advantageously appearing white-colored, without needing to darken to grey or black as usually would occur when working with silver. Also, starch products with outstanding water uptake are provided.

Starch derivatives and other derivatives, production processes therefor, and wound healing applications therefor

Polymeric additives and polymeric articles comprising said additive

A process for selectively separating polyamides from multi-component waste materials including the steps of subjecting the multi-component mix to a specific mixture of caprolactam and water at a preselected temperature range below the degradation temperature of the polymer to be recovered, separating the formed polyamide solution, and recovering the desired polyamide. The process is very desirable for separating multi-component waste materials which contain not only nylon 6, but also nylon 6,6. The recovered polyamide may be used in molding applications and in fiber such as carpet fiber.

Selective polyamide recovery from multi-component materials

The present invention relates to a tufted fabric and a method of manufacturing the same. The tufted fabric generally comprises a primary backing and tufts mounted in the primary backing to form a fabric with a faceside having piles and a backside having loops. A thermoplastic polymer adhesive, which bonds the tufts to the primary backing, is formed by applying a reactive mixture comprising a polymerizable monomer to the backside of the tufted fabric and in-situ polymerizing the monomers to form the thermoplastic polymer adhesive. The process is particularly advantageous for the manufacture of recyclable tufted fabrics in which the adhesive polymer and tufts are formed from substantially the same polymer. The tufted fabric can be used in articles, such as, for example carpets, rugs and upholstery.

Tufted fabrics

A dyed or undyed polyamide substrate, preferably film, fiber, or an article manufactured therefrom, with excellent breaking strength retention and ultimate elongation retention, is prepared by reacting a sufficient number of amine and/or amide-forming functional groups of a hindered amine with the end groups of the polyamide precursor(s) at a temperature sufficient for polymerization to occur, to thereby bind the hindered amine to the polyamide and inhibit migration, leaching, and volatilization of the hindered amine. The hindered amine is represented by the formula: ##STR1## in which R.sub.1 comprises the amine or amide-forming functional group;

Light stabilized polyamide substrate and process for making

Yarns are prepared by spinning PEN or other semi-crystalline polyester polymers made from similarly rigid monomer combinations to a state of optimum amorphous orientation and crystallinity. This is accomplished by selection of process parameters to form an undrawn polyester yarn of birefringence at least 0.030. The spun yarn is then hot drawn to a total draw ratio of between 1.5/1 and 6.0/1 with the resulting drawn semi-crystalline polyester yarn having Tg greater than 100.degree. C. and a melting point elevation at least 8.degree. C. The preferred yarn has a tenacity at least 6.5 g/d, dimensional stability (EASL+Shrinkage) of less than 5%, and shrinkage 4% or less. The resulting yarn exhibits surprisingly high modulus and tenacity together with low shrinkage when compared to prior art yarns.

High modulus polyester yarn for tire cords and composites

An improved process for controlling and reducing the concentration of free carboxyl end groups in condensation polyester melt spun fiber is provided. The difunctional compound, serves to increase the intrinsic viscosity of the fiber. The process comprises admixing and reacting with molten polyester polymer an effective amount of a lactim compound of the formula ##STR1## wherein x and y may be alike or different and represent an integer of 2 to 15; and

Reduction of carboxyl end groups in polyester with dilactim ethers

An improved process for controlling and reducing the concentration of free carboxyl end groups in condensation polyester melt spun fiber is provided. By selection of a multifunctional compound, it is possible to increase the intrinsic viscosity of the fiber. The process comprises admixing and reacting with molten polyester polymer an effective amount of a lactim compound of the formula ##STR1## wherein n is an integer of 2 to 15;

Reduction of carboxyl end groups in polyester fibers with lactim ethers

In a process for the production of heat stabilized nylon-6, hot nylon pellets are directly sprayed with measured quantities of concentrated solutions of copper salts and inorganic halides. For soluble cupric salts, the pellets are sprayed with a first solution comprising the soluble cupric salt and a second solution comprising the halide. Separate solutions are utilized when necessary to avoid precipitation problems. For cuprous salts solubilized in concentrated halide solution, a single solution may be prepared for spraying. Rapid absorption of copper by nylon eliminates precipitation and subsequent loss of the chemicals or discoloration of products.

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Midlothian, VA, United States of America

Yousef Mohajer