摘要:
The invention relates to a method for the agglomeration of super absorber particles, wherein polymer particles having a particle size of 250 µm or less are dispersed in a hydrophobic organic solvent, said dispersed polymer particles are mixed with an aqueous monomer solution which has an amount of non-neutralized monomer of 0.5 - 80 wt.%, with respect to the dispersed polymer particle, applied to the monomer solution, and the monomer solution is polymerised.
摘要:
Die Erfindung betrifft ein Verfahren zur Gewinnung von schwer entflammbaren Synthesefasern aus textilen Flächengebilden, die zumindest einen Anteil an schwer entflammbaren Synthesefasern sowie zumindest einen Anteil an enzymatisch hydrolysierbaren Fasern enthalten, wobei der hydrolysierbare Faseranteil mittels einer enzymatischen Behandlung aufgelöst wird.
摘要:
Silicone hydrogel contact lenses that are derived from a polymerizable composition including a first siloxane monomer represented by formula (3): wherein m of formula (3) represents one integer from 3 to 10, n of formula (3) represents one integer from 1 to 10, R1 of formula (3) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (3) is independently either a hydrogen atom or a methyl group; and at least one vinyl ether-containing cross-linking agent are described. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described. In one example, the batches of silicone hydrogel contact lenses are dimensionally stable, and the method of making is a method of making dimensionally stable silicone hydrogel contact lenses.
摘要:
An object of the present invention is to provide a method for recovering a hydrofluorocarbon capable of recovering a hydrofluorocarbon used for producing fluoropolymers, in a higher recovery efficiency and in a shorter time. The present invention relates to a method for recovering a hydrofluorocarbon, including: producing a wet fluoropolymer by suspension polymerization, solution polymerization, or bulk polymerization in the presence of a hydrofluorocarbon; vaporizing and discharging vaporizable substances including the hydrofluorocarbon by heating the wet fluoropolymer in a container; and transferring the discharged vaporizable substances to a cooling means to cool the substances.
摘要:
An object of the present invention is to provide a method for recovering a hydrofluorocarbon capable of recovering a hydrofluorocarbon used for producing fluoropolymers, in a higher recovery efficiency and in a shorter time. The present invention relates to a method for recovering a hydrofluorocarbon, including: producing a wet fluoropolymer by suspension polymerization, solution polymerization, or bulk polymerization in the presence of a hydrofluorocarbon; vaporizing and discharging vaporizable substances including the hydrofluorocarbon by heating the wet fluoropolymer in a container; and transferring the discharged vaporizable substances to a cooling means to cool the substances.
摘要:
The present invention relates to a method of preparing an ethylene/alpha-olefin/diene-based elastic copolymer having high viscosity and a high molecular weight, in which energy efficiency of the entire process is optimized. The method of preparing the elastic copolymer includes the steps of: copolymerizing an ethylene/alpha-olefin/diene-based elastic copolymer; and separating and removing the solvent and unreacted monomers from the polymer solution and recovering the elastic copolymer, by sequentially using a gas-liquid separator and a stripper in the purification of the solvent and unreacted monomers.