Systems and methods for monitoring a particle/fluid mixture are provided. The method can include flowing a mixture comprising charged particles and a fluid past a particle accumulation probe. The method can also include measuring electrical signals detected by the probe as some charged particles pass the probe without contacting the probe while other charged particles contact the probe. The measured electrical signals can be manipulated to provide an output. The method can also include determining from the output if the charged particles contacting the probe have, on average, a different charge than the charged particles that pass the probe without contacting the probe.

A catalyst system comprising a combination of: 1) one or more catalyst compounds comprising at least one nitrogen linkage; 2) a support comprising an organosilica material, which is a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include pyridyldiamido transition metal complexes, HN5 compounds, and bis(imino)pyridyl complexes. The organosilica material is a polymer of at least one monomer of Formula [Z.sup.1OZ.sup.2SiCH.sub.2].sub.3(1), where Z.sup.1 represents a hydrogen atom, a C.sub.1-C.sub.4alkyl group, or a bond to a silicon atom of another monomer and Z.sup.2 represents a hydroxyl group, a C1-C.sub.4alkoxy group, a C.sub.1-C.sub.6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.

Processes for making and using a viscosified liquid slurry polymerization additive are disclosed herein. The process for making a viscosified liquid slurry polymerization additive comprises contacting a polymerization additive with a liquid to form a liquid slurry polymerization additive, and shearing the liquid slurry polymerization additive to increase its viscosity and thus form the viscosified liquid slurry polymerization additive. The process for using a viscosified liquid slurry polymerization additive comprises contacting, under polymerization conditions, in a reactor system: a catalyst system, one or more monomers, and at least one viscosified liquid slurry polymerization additive.

The present invention relates to redispersible nanoparticles, to processes for the production thereof, and to the use thereof in formulations, surface coatings, paints and plastics.

The present invention relates to redispersible nanoparticles, to processes for the production thereof, and to the use thereof in formulations, surface coatings, paints and plastics.

A technique is disclosed for recapturing and recycling biomolecule reagents. The technique may be applied in a range of settings, including biopolymer synthesis, sequencing, and so forth. Biomolecule reagents such as nucleotides and oligonucleotides used to process nucleic acids, which may be marked with fluorescent tags, carry blocking agents, and so forth, are introduced to samples in a sample container. After the desired reaction occurs with some of the biomolecule reagents, such as some of the nucleotides or oligonucleotides, the effluent stream is processed to recapture unreacted biomolecule reagents. These may be separated from other reaction components, and recycled into the same or a different sample container. The recaptured biomolecule reagents may be mixed with additional biomolecule reagents prior to reintroduction to the same or different samples.

Spherical adducts comprising a MgCl.sub.2, an alcohol ROH in which R is a C.sub.1-C.sub.10 hydrocarbon group, present in a molar ratio with MgCl.sub.2 ranging from 0.5 to 6 and less than 20% mol based on the mol of MgCl.sub.2 of a compound of formula Mg(OR.sup.1).sub.2 in which R.sup.1 is selected from C.sub.1-C.sub.10 alkyl groups or R.sup.2CO groups in which R.sup.2 is selected from C1-C6 alkyl or aryl groups.

Spherical adducts comprising a MgCl.sub.2, an alcohol ROH in which R is a C.sub.1-C.sub.10 hydrocarbon group, present in a molar ratio with MgCl.sub.2 ranging from 0.5 to 6 and less than 20% mol based on the mol of MgCl.sub.2 of a compound of formula Mg(OR.sup.1).sub.2 in which R.sup.1 is selected from C.sub.1-C.sub.10 alkyl groups or R.sup.2CO groups in which R.sup.2 is selected from C1-C6 alkyl or aryl groups.

The invention provides an ethylene-based polymer comprising the following properties: a) weight fraction (w) of molecular weight above 5*10.sup.6 g/mol, w>A−B*I2, where A=0.4 wt %, and B is 0.02 wt %/(dg/min), and w<C−B*I.sub.2%, where C=0.9 wt %; and b) G′>D−E*log(I2), where D=162 Pa and E=52 Pa/log(dg/min).

The invention provides an ethylene-based polymer comprising the following properties: a) weight fraction (w) of molecular weight above 5*10.sup.6 g/mol, w>A−B*I2, where A=0.4 wt %, and B is 0.02 wt %/(dg/min), and w<C−B*I.sub.2%, where C=0.9 wt %; and b) G′>D−E*log(I2), where D=162 Pa and E=52 Pa/log(dg/min).