Abstract:
A nonwoven fabric laminate embodying the principles of the present invention is configured as a multi-layer construct of a plurality of melt-extrusion layers, including at least one, and preferably a pair of outer spunbond layers, and a central, melt-blown barrier layer juxtaposed to the outer spunbond layers. At least one fo the layers, preferably the melt-blown layer, comprises a barrier-enhancing melt additive compound having a fluoroalcohol with a non-derivatized additive such as a fatty acid, more preferably a derivatized perfluoroalcohol with a non-derivatized additive, with a stearic ester of perfluoroalcohol in a hydrogenated tallow amide additive being presently preferred.
Abstract:
The following fluorine-containing compound is presented which is capable of providing dry soil resistance when incorporated to a water and oil repellent.Rf1R2OCOCH2CHR1COOR3Rf2 (wherein each of Rf1 and Rf2 which are independent of each other, is a C3-22 polyfluoroalkyl group, R1 is a hydrogen atom or a C1-10 alkyl group, and each of R2 and R3 which are independent of each other, is a C1-4 alkylene group, etc.).
Abstract:
The present invention is directed to surface functionalized fabrics, particularly those based on non-woven polypropylene, wherein the functional groups are capable of binding antimicrobial agents through ionic conjugation to control their release and prolong their antimicrobial activity. The invention also deals with Nylon 6 fabric that is complexed with iodine to control its release and to achieve prolonged antimicrobial activities. Similarly, polypropylene and cellulosic fabrics grafted with N-vinylpyrrolidone are disclosed. The N-vinylpyrrolidone can also complex with iodine to control its release and provide antimicrobial activity over desired periods of time.
Abstract:
A water- and oil-repellent, antistatic composition comprises (a) at least one nonpolymeric ionic salt consisting of (i) at least one cation selected from the group consisting of monovalent metal cations, divalent metal cations, and organic onium cations, and (ii) at least one weakly coordinating anion, the conjugate acid of the anion having an acidity greater than or equal to that of a hydrocarbon sulfonic acid, and with the proviso that the anion is organic or fluoroorganic when the cation is a metal; (b) at least one fluorochemical repellency-imparting additive or repellent; and (c) at least one insulating material. The composition exhibits good antistatic and repellency characteristics.
Abstract:
A low melting, high solids spin finish composition is provided that can be readily applied to synthetic fibers during the fiber-making process. The spin finish solids, which make up at least about 70% by weight of the spin finish composition, comprise nonionic hydrocarbon surfactant components, such as polyoxyalkylenes, which have a value of from about 2 to 13 and a melting point within the range of about 25.degree. C. to about 140.degree. C. In some embodiments, the spin finish composition also includes select fluorochemicals.
Abstract:
Organic polymer surfaces are modified by contacting such surfaces with a haloester compound and a cationic compound of having a pK.sub.a >5. Preferably the organic polymer is selected from the group consisting of polyesters, aromatic polyamides, and graphitic polymers and the contacting is conducted at an elevated temperature.
Abstract:
Textiles, particularly carpets, are endowed with oil and water repellency and soil resistance by treatment thereof with certain detergent-compatible fluorochemmical compounds which can also be used in conjunction with anionic or nonionic detergents to provide cleaning/treating compositions for cleaning such textiles simultaneously with the treatment. The textile treating compositions of the invention comprise certain detergent-compatible fluorochemical compounds which are dissolved and/or dispersed in a suitable liquid vehicle. The textile treating/cleaning compositions of the invention also contain an anionic and/or a nonionic detergent.
Abstract:
Novel flame retardant finishes comprising a water soluble quaternary phosphonium salt, a water soluble organic nitrogen containing compound, a halophthalate diol, water, and either an organic solvent characterized by having a flash point of at least 80.degree. F. and a boiling point within the range of about 300.degree. to about 350.degree. F. and an emulsifier having a hydrophile lipophile balance value of from about 10 to about 14 or an emulsifying agent which is capable of passing the following three tests: (1) Solubility (Compatability) Test: said emulsifying agent (20 parts by weight) must be soluble in 80 parts by weight of said phosphate ester at less than or equal to 80.degree. C.; (2) Shelf Life Test: a blend of said emulsifying agent and said phosphate ester prepared as in the Solubility Test must remain in one clear homogeneous phase at 22.degree. C. for at least one hour; (3) Finish Formulation Test: a flame retardant finish within the scope of this invention is prepared and must remain in one homogeneous phase for a minimum of one hour at 20.degree. C. These flame retardant finishes are excellent for flame retarding textile materials including polyester/cotton blend fabrics.
Abstract:
Dry soil resistance and nonflame propagating characteristics are insured in textile fibers by applying thereto an aqueous dispersion containing a perfluoroalkyl ester of a carboxylic acid of from 3 to 30 carbon atoms. After the dispersion is applied, the fibers are dried at between 120.degree. to 170.degree. C.
Abstract:
A monohydroxyalkyl, perfluorotertiaryalkyl ether, said monohydroxylalkyl group having no more than 16 carbon atoms and said perfluorotertiary alkyl group having the structure ##EQU1## where R.sub.f is a perfluoroalkyl group of less than 10 carbon atoms.