Patent
Hydrosoluble/hydrodispersible polyesters and sizing of textile threads therewith
Etienne Fleury,Yvette Girardeau +1 more
TLDR
In this paper, a transesterifying admixture of dimethyl terephthalate, dimethyl sulfoaryl dicarboxylate and ethylene glycol is introduced, and the resulting product of transesterification/direct esterification is polycondensed.Abstract:
Hydrosoluble/hydrodispersible polyester copolycondensates, well suited for the sizing of textile threads, comprise terephthalate, isophthalate, sulfoaryl dicarboxylate, ethylene glycol and polyoxyethylene glycol recurring structural units, have a glass transition temperature ranging from 15° to 40° C. at 85% relative humidity and the turbidity of aqueous formulations thereof are storage-stable over time; such polyester copolycondensates are conveniently prepared by (i) transesterifying admixture of dimethyl terephthalate, dimethyl sulfoaryl dicarboxylate and ethylene glycol, (ii) introducing isophthalic acid and an additional amount of ethylene glycol into the medium of transesterification and therein directly esterifying same, and (iii) polycondensing the resulting product of transesterification/direct esterification.read more
Citations
More filters
Patent
Compatibilized blends of biodegradable polymers with improved rheology
TL;DR: In this article, a blend of biodegradable polymers comprising (A) about 5 % to about 95 % by weight of at least one flexible polymers (B) having a glass transition less than about 0 °C, (C) about 0.25 to about 10 weight % of one compatibilizer (C), said percentages being based on the total weight of the polymer blend; where the polymers have a higher zero shear melt viscosity than polymers separately.
Patent
Shaped articles from cycloaliphatic polyester compositions
TL;DR: In this paper, oriented, shaped articles such as, for example, film, fibers, bottles, and tubes, with excellent strength, toughness, clarity, chemical resistance, and UV resistance are discussed.
Patent
Articles of manufacture incorporating polyester/polycarbonate blends
TL;DR: In this article, a thermoplastic article having one or more decorative materials on the surface thereof which is obtained by applying heat and pressure to a laminate wherein said thermplastic article comprises (1) one or many decorative materials; and (2) an upper or lower sheet material; wherein the upper or higher sheet material is formed from a polyester/aromatic polycarbonate blend.
Patent
Water-dispersible and multicomponent fibers from sulfopolyesters
Rakesh Kumar Gupta,Scott Ellery George,Daniel William Klosiewicz,Kab Sik Seo,Coralie Mckenna Fleenor,Allen Lynn Crain +5 more
TL;DR: In this paper, a process for water-dispersible fibers, nonwoven fabrics, and microdenier fibers is described, which can be used to produce micro-deniers.
Patent
Void-containing polyester shrink film
TL;DR: In this article, a voiding agent comprising at least one first polymer and at least two second polymer components has selected physical properties such as glass transition temperature, melting point, tensile modulus, surface tension, and melt viscosity.
References
More filters
Patent
Aqueous copolyester dispersions suited for the subbing of polyester film, subbed polyester film and photographic materials containing a subbed polyester base
Walter Frans De Dr Winter,August Jean Van Paesschen,Lucien Janbaptist Van Gossum,Etienne Adrianus Van Thillo,August Marien +4 more
TL;DR: In this article, an aqueous copolyester dispersion suitable for the subbing of polyesterfilm without the use of solvents is characterized, which consists of recurring ester groups derived from ethylene glycol and a mixture of terephthalic acid, isophthalic acid and sulpho group is in salt form.
Patent
Polyester binder fibers
Tamio Yamamoto,Hiroshi Tamaya +1 more
TL;DR: In this article, a water-dispersible copolymerized polyester, comprising at least one dicarboxylic acid and/or an esterforming derivative thereof, a glycol and an estersonic acid alkali metal salt composition, was presented.
Patent
Fibers of polyesters prepared from ethylene glycol, dimethyl terephthalate, sodium dimethyl-5-sulphoisophthalate and poly(ethylene oxide)
A Harrison,J Mather +1 more
TL;DR: Fibers of copolyester of improved affinity for dyestuffs are derived from at least one dicarboxylic acid and at least two glycols, one of the glycol being a poly (alkylene oxide) and a proportion of the structural units of the copolyesters consists of organic radicals containing at least 1 sulphonate group as the metal salt as discussed by the authors.
Patent
Process for coating polyester films, and coated films
TL;DR: In this paper, the preparation of oriented polyester films having on at least one of their faces, a primer coating to improve adhesion of films to final coatings use by depositing on one side of the film, preferably before stretching or between the longitudinal and transverse stretchings of a modified copolymer obtained by radical polymerization in aqueous phase of at least 1 monomer of acrylic nature in the presence of a soluble or dispersible copolyester in water having a plurality of sulphonyloxy groups.
Patent
Procédé d'obtention de films polyester composites épais à adhérence améliorée et nouveaux films composites
TL;DR: In this paper, a procedure for ameliorer l'adherence of polyester films polyester d'epaisseur superieure a 40 micrometres a leurs revetements finals d'application is presented.