Abstract:
Solutions of polyvinylidene fluoride (PVDF) or copolymers of 1,1-difluoroethylene in a solvent which comprises N-formylmorpholine (NFM), N-acetylmorpholine (NAM) or mixtures thereof and additionally a cosolvent selected from alkylene carbonate, mono-, di- or polyalkylene glycol dialkyl ethers or mixtures thereof.
Abstract:
Solution comprising a sulfone polymer and a N-acyl-pyrrolidine of formula I wherein R1 to R9 independently from each other are a hydrogen atom or a methyl group. The solution is applied in membrane formation with polyvinylpyrrolidone as optional component.
Abstract:
Solution comprising a sulfone polymer, a water-soluble polymer and a N-acyl-morpholine of formula I wherein R1 is a hydrogen atom or a C1- to C3 alkyl group.
Abstract:
Cured epoxy resins are widespread because of their excellent mechanical and chemical properties. Typically, epoxy resins based on bisphenol A diglycidyl ethers or bisphenol F diglycidyl ethers are used, but these are problematic for many sectors because of their effect on the endocrine system. The present invention relates to glycidyl ethers of divinylbenzene-based diols and/or polyols, and to curable epoxy resin compositions based thereon as alternatives to the bisphenol A diglycidyl ethers or bisphenol F diglycidyl ethers, or the epoxy resin compositions based thereon.
Abstract:
Cured epoxy resins are widespread because of their excellent mechanical and chemical properties. Typically, epoxy resins based on bisphenol A diglycidyl ethers or bisphenol F diglycidyl ethers are used, but these are problematic for many sectors because of their effect on the endocrine system. The present invention relates to glycidyl ethers of limonene-based diols and/or polyols, and to curable epoxy resin compositions based thereon as alternatives to the bisphenol A diglycidyl ethers or bisphenol F diglycidyl ethers, or the epoxy resin compositions based thereon.