A removable hiding fluid includes an organic solvent; a dispersing and wetting agent having a polyamine amide of polycarboxylic acid; an opacifier at a content between 50% and 60% by weight relative to a total weight of the removable hiding fluid; a resin; and an additive including a rubber element melted into a mixture of the organic solvent, dispersing and wetting agent, specifier and resin.

The present invention relates to novel polymer compositions which are obtained by neutralizing a polymer P having at least one functional moiety of the formula (I) bound to at least one of the termini and/or to the backbone of the polymer, with an oligomeric or polymeric amine PA having at least 2 amino groups per oligomer or polymer molecule.

A crosslinked resin made up of polymerized units of a linear polyamine with at least 3 primary and/or secondary amine functionalities and a bisacrylamide. The crosslinked polymers are porous spherical particles with a BET surface area in the range of 50-120 m.sup.2/g. A method of the synthesizing the crosslinked polymer is specified. A method for using the crosslinked resin as an adsorbent material in removing pollutants including organic dyes (e.g. Congo red, Rhodamine B) and heavy metals from an aqueous solution or an industrial wastewater sample is also described.

The invention a fluorinated dendrimer and a preparation method thereof. The preparation method of the fluorinated dendrimer include the following steps: S1, obtaining an intermediate product by addition reaction of 4-fluoroaniline and methyl acrylate at room temperature; S2, stirring the intermediate product with 1,3-diamino-2-propanol and methyl acrylate at room temperature to obtain a mixture; S3, performing a stage heating reaction of the mixture under a reduced pressure condition to obtain the fluorinated dendrimer. The fluorinated dendrimer can solve the problems of high demulsification temperature, large dosage, and low demulsification efficiency of existing demulsifiers.

Injectable hydrogels in the form of crosslinked nano beads or particle in the size range 5 nm to 10 μm, comprising PAMAM dendrimer with asymmetrical peripheral end groups such that one of the terminal groups is involved in formation of hydrogel and the other in involved in the conjugation of drugs or imaging agents are formed by reaction of the PAMAM dendrimer with asymmetrical end groups with linear, branched, hyperbranched or star shaped polymers with functionalized terminal groups. The PAMAM dendrimer with asymmetrical terminal groups consists of a Generation 2 and above PAMAM dendrimer with symmetrical end groups modified using the amino acids or their modified forms. The gel is formed as small crosslinked particles in the size range 25 nm to 10 μm and is suitable for injectable delivery of hydrogel or ocular delivery for the purpose of therapeutic treatment and imaging.

Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier has at least 5 repeating units. Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier includes at least 3 repeating units selected from allylamine, polyaminopolyamide, N-alkyl acrylamides, (meth)acrylic acid, alkyleneamine reacted with a dicarboxylic acid, alpha-olefin-alt-maleic anhydride, styrene maleic anhydride, alkylene oxide, wherein one or more amine or acid group on the repeating unit is amidized.

A CMP slurry composition for polishing a tungsten pattern wafer and a method of polishing a tungsten pattern wafer using the same. The CMP composition includes: a solvent; an abrasive agent; and a dendritic poly(amidoamine) containing a terminal amino group.

A star polypeptide for use as a medicament, the star polypeptide comprising or consisting of a core and polypeptide arms radiating from the core. The star polypeptide may be used to deliver a therapeutic cargo and/or for its intrinsic properties. Therapeutic cargoes include a protein(e.g. VEGF); a nucleic acid (e.g. in vitro transcribed mRNA or microRNA); and/or a drug (e.g. diclofenac, azithromycin and/or rifampicin). Intrinsic properties include osteogenesis, angiogenesis and inhibition of bacteria.

The present disclosure relates to carbohydrate-functionalized nanoparticles and methods of treating cardiovascular disease (for example, atherosclerosis).

The present disclosure is directed to nanoparticle delivery systems for delivering biological agents, pharmaceutical compositions of comprising these nanoparticles, and methods of using these compositions. Certain embodiments of the present disclosure provide nanoparticles comprising polymers comprising alternating charged and uncharged segments comprising one or more of the following structural units of Formula (I) Formula (III):

##STR00001##

wherein A is an uncharged segment comprising polyalkylene glycol; and B is a cationically charged segment comprising at least one polyhydroxy linkage.