Has anyone read through patent provided by Bayer and granted a US patent? I read the InP/ZnS patent previously, but not this one in detail until now.
Process for the synthesis of nanosize metal-containing nanoparticles and nanoparticle dispersions, US7833506B2
It covers the whole continuous flow process for nano-particles of varying shape or dimensions and composition. I'm no lawyer, but it seems fairly iron clad that Bayer created the continuous flow patent that will be hard for others to tread in this realm for nano-particle manufacturing. QMC looks to be on solid IP ground in my opinion for many nano-particles. Now that they appear to have finalize a product offering that clients may be ready to use, I see QMC being worth a lot, if they can close some deals.
https://patents.google.com/patent/US7833506B2...atus=GRANT
Process for the synthesis of nanosize metal-containing nanoparticles and nanoparticle dispersions, US7833506B2
It covers the whole continuous flow process for nano-particles of varying shape or dimensions and composition. I'm no lawyer, but it seems fairly iron clad that Bayer created the continuous flow patent that will be hard for others to tread in this realm for nano-particle manufacturing. QMC looks to be on solid IP ground in my opinion for many nano-particles. Now that they appear to have finalize a product offering that clients may be ready to use, I see QMC being worth a lot, if they can close some deals.
Quote:The temperature for pre-mixing of the precursors is preferably chosen in such a way that no significant chemical reaction and nucleation can take place in the receptacle and in the supply lines. This may be determined, for example, by monitoring the colour or clouding of the precursor solution in the receptacle. In addition, the extremely high heat transfer rates in microreaction technology components in combination with thermostattable microstructured residence time reactors with static mixing internals were found to enable the nucleation and growth processes to be separated in time and space, resulting in specific particle sizes or particle morphologies and narrow particle size distributions of the semiconductor nanoparticles. Controlling the nucleation and growth processes separated in time and space then enables particle size, particle size distribution and particle morphology to be specifically adjusted, thereby enabling 0D, 1D, 2D and 3D structures to be synthesized selectively, with 0D structures being spherical nanoparticles, 1D structures being for example rods, 2D structures being for example plates and 3D structures being for example tetrapods or branched nanostructures.
Quote:The process particularly preferably enables semiconductor nanoparticles (e.g. II-VI or III-V compound semiconductors) of various forms (spherical particles, rods, plates, tetrapods, core-shell or doped nanoparticles) and sizes to be synthesized continuously in a suitable organic reaction medium.
The reactants employed in the present process are usually metallic reactants such as, for example, Cd, Zn, In, Pb, Ga, Cu, Sn, Mn, Fe, Ti, metal oxides or salts thereof (reactant 1), and Se-, Te-, As-, S-, P-, O-containing compounds (reactant 2). The reactants are used in a dissolved form (precursor solutions) in the process according to the invention.
https://patents.google.com/patent/US7833506B2...atus=GRANT
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