Abstract:
A fluoroelastomer comprising a copolymer of fluoroolefin monomers selected from one or more of the group consisting of 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene and 1-chloro-3,3,3-trifluoropropene, and ethylenically unsaturated co-monomers; wherein the fluoroelastomer has a glass transition temperature (Tg) of from about −60° C. to about 53° C. A process of making the fluoroelastomer.
Abstract:
Poly(amine allyl halides) copolymer may be produced by mixing an amine compound and a mono-olefinic allyl type monohalide compound in the presence of an oxidized silicon catalyst.
Abstract:
Allyl halides are polymerized by a catalyst, silicic or silicoformic acid, to produce poly(allyl halide) polymer and poly(allyl alcohol) polymer.
Abstract:
Allyl halides are polymerized by a catalyst, silicic or silicoformic acids, to produce poly(allyl halide) polymer and poly(allyl alcohol) polymer.
Abstract:
The present invention relates to an iminodiacetic acid chelating resin, wherein the water amount in the resin is from 50 to 75% and the volume ratio of Na form/H form is from 1.4 to 1.8. Furthermore, the present invention relates to a method for producing an iminodiacetic acid chelating resin, wherein an alcohol is used as a solvent for the amination reaction of a chloromethylated styrene crosslinked copolymer with iminodiacetonitrile or sodium iodide and/or potassium iodide is used as a catalyst for the amination reaction.