摘要:
The invention relates to articles such as protective films and displays having a fluorochemical surface layer comprising an antistatic agent and the reaction products of at least one fluoropolyether (meth)acryl compound and at least 50 wt-% of non-fluorinated crosslinking agent(s).
摘要:
The invention relates to display and protective articles having a fluorochemical surface layer, and methods of making such articles. The invention also relates to fluoropolyether acrylate compositions.
摘要:
The invention relates to display and protective articles having a fluorochemical surface layer, and methods of making such articles. The invention also relates to fluoropolyether acrylate compositions.
摘要:
Fluorochemical composition for rendering fibrous substrates oil repellent, water repellent, and/or stain or soil repellent. The composition comprises a dispersion or a solution of a fluorinated compound which comprises the reaction product of the following combination of reactants: (i) a fluorinated polyether according to the formula: Rf—Q—Tk (I) wherein Rf represents a monovalent perfluorinated polyether group having a molecular weight of at least 750 g/mol, Q represents a chemical bond or a divalent or trivalent organic linking group, T represents a functional group capable of reacting with an isocyanate and k is 1 or 2; (ii) an isocyanate component selected from a polyisocyanate compound that has at least 3 isocyanate groups or a mixture of polyisocyanate compounds wherein the average number of isocyanate groups per molecule is more than 2; and (iii) optionally one or more co-reactants capable of reacting with an isocyanate group.
摘要:
Described are fluorinated polyether compounds having a molecular weight range between 750 g/mol and 4000 g/mol where such polyether compounds are intermediates used in fluorinated compositions for treating various substrates.
摘要:
A fluorochemical composition for rendering a fibrous substrate oil and/or water repellent which comprises a solution or dispersion of a fluoropolymer having a partially or fully fluorinated backbone and comprising one or more repeating units corresponding to the general formula: wherein Rf represents a perfluorinated organic group having a chain length of at least 2 atoms and having at least one carbon atom and optional auxiliary components.
摘要:
The present invention relates to orthopedic casting materials having reduced tack and methods for preparing and using such orthopedic casting materials, wherein the materials comprise a nonwoven, stretchable fabric which is impregnated with a curable prepolymer resin. The nonwoven fabric comprises fiber bundles and apertures between the fiber bundles, with each of the fiber bundles comprising a plurality of fibers having interstices therebetween. The curable prepolymer resin is impregnated into the nonwoven fabric such that the interstices between the fibers receive the resin, while leaving the apertures between fiber bundles substantially unoccluded. Such orthopedic casting materials are relatively inexpensive and exhibit improved properties.
摘要:
Fluorochemical urethane compositions comprising one or more fluorochemical urethane compounds, and one or more auxiliary compounds for treatment of a fibrous substrate are described. The fluorochemical compositions are capable of improving one or more of the oil- and/or water repellency, stain- and/or soil repellency and stain and/or soil release properties, with improved durability, of the fibrous substrate treated with the fluorochemical composition.
摘要:
Mixtures comprising thermoplastic polymer, such as polypropylene, and fluorochemical piperazine are provided. Shaped articles, such as fibers, made from these mixtures have low surface-energy surfaces which results in oil- and water-repellency and anti-soiling properties.
摘要:
New catalysts useful in the curing of a water-curable isocyanate-functional prepolymer are provided. The new catalyst is a new 2,2'-dimorpholinyldialkyl ether. The use of the improved catalyst provides prepolymer/catalyst premix compositions having equivalent or increased shelf stability and which, when water-cured, yield resins having superior early strengths. A method of curing an isocyanate-functional prepolymer and articles useful as orthopedic bandages are also provided.