E.i. Dupont De Nemours and Company

James Michael McKenna

I-Hwa Lee

Raghuram Narumanchi

William E Garrison

Raymond F Tietz

Robert B Fish, Jr

Shailaja R Vaidya

Francis G Gallagher

Robert Rex Reitz

Austin Henry Reid, Jr

David J Wrigley

Edward Maxwell De Brant Smith

Films comprising a liquid-absorbant layer and an impermeable layer are provided. Processes for manufacturing these films is also provided. The films are suitable for preparation of tubular casings and shrinkbags, in particular, casings for smoked foodstuffs. Also described are foodstuffs processed in the tubular casings.

Films comprising a liquid-absorbant inner layer and an impermeable outer layer

Ultraviolet light stabilized copolyetherester compositions that comprise at least one nanoparticulate mineral selected from titanium dioxide, cerium oxide, and zinc oxide and at least one organic ultraviolet light stabilizer. Articles formed from the compositions are also disclosed.

Light stabilized copolyetherester compositions

Polyetherester elastomers comprising about 25 to about 59 weight percent poly(trimethylene ether) ester soft segments and about 41 to about 75 weight percent hard segments, wherein the poly(trimethylene ether) ester soft segments are derived from poly(trimethylene ether) glycol having a number average molecular weight of about 600 to about 2500. Compositions thereof and articles made therefrom are disclosed.

Polyester elastomer and compositions thereof

Polymer compositions comprising polyester, boron component, and epoxy component. Articles made from these compositions, particularly articles requiring excellent hydrolysis resistance properties.

Hydrolysis resistant polyester compositions and related articles and methods

Copolyether ester elastomers are provided which contain epoxide compounds. The compositions show improved bloom resistance in the presence of diamines with minimum increase in melt viscosity. Also disclosed are methods to improve appearance and eliminate bloom from finished products comprising thermoplastic copolyesters by lowering the level of acid terminated oligomers in the thermoplastic copolyesters with epoxide compounds.

Thermoplastic copolyester compositions modified with epoxide compounds

Novel fishing lines, and related products, especially monofilamentary products, of polyesters that are biodegradable and disintegrate, when immersed over a period of weeks or months in water, to avoid residues thereof obstructing the aqueous environment, but are storage-stable, i.e.. do not disintegrate while being stored in air, before such lengthy immersion.

Fishing lines and related products

Flame retardant copolyetherester elastomer compositions containing effective concentrations of N,N'-ethylenebis(tetrabromophthalimide), antimony trioxide, and fumed silica.

Flame retardant copolyetheresters

Compositions containing copolymers of ethylene, alkyl acrylate and monoalkyl esters of 1,4-butenedioic acid and compounds having the formula ##STR1## formed by reacting the minor amount of alkyl acrylate monomer entrained in the copolymer with a secondary amine of the formula ##STR2## are less odorous than are compositions containing the unreacted alkyl acrylate monomer.

Alkyl acrylate polymer having less odor

Vanadium catalyst residues can be removed from solutions of organic solvents of homopolymers of .alpha.-olefins or their copolymers with hydrocarbon monomers by first contacting at a temperature of about room temperature to about 140.degree. C. the polymer solutions with polar liquid extractants supported on an inert, finely divided, solid material, such as diatomaceous silica, silica gel, alumina, or molecular sieves, then separating the solution from the solid material. Water is the preferred polar liquid, and diatomaceous silica is the preferred supporting material. Polymers recovered from solutions treated according to the process of this invention have a much lesser proportion of vanadium contaminants than those recovered from untreated solutions. This vanadium removal process is simple and inexpensive.

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Hockessin, DE, United States of America

James Michael McKenna