A liquid crystal polyester wherein a linear liquid crystal polymer chain including specific monomers (A) to (C), in which at least one of the monomer (B) and the monomer (C) contains a compound for forming a bent structural unit, and a content of the compound for forming a bent structural unit is 20 to 40% by mol relative to a total molar amount of the monomers (A) to (C), is bonded via a specific monomer (D), and a content proportion of the monomer (D) is 0.01 to 10 mol relative to 100 mol of the total molar amount of the monomers (A) to (C).

A liquid-crystal polymer includes at least one repeating unit having a spiro structure, and the repeating unit occupies 1 mol % to 20 mol % of the liquid-crystal polymer. The liquid-crystal polymer is composed of the following repeating units: 1 mol % to 20 mol % of ##STR00001##
10 mol % to 35 mol % of ##STR00002##
10 mol % to 35 mol % of ##STR00003##
10 mol % to
50 mol % of ##STR00004##
and 10 mol % to 40 mol % of ##STR00005##
AR.sup.1 is ##STR00006##
wherein each of ring R and ring S is independently a C.sub.3-20 ring, ring R and ring S share a carbon atom, and each of K.sup.1 and K.sup.2 is independently a C.sub.5-20 conjugated system. Each of AR.sup.2, AR.sup.3, AR.sup.4, and AR.sup.5 is independently AR.sup.6 or AR.sup.6—Z—AR.sup.7.

Use of complex polyester amines and polyester quaternary ammonium compounds as corrosion inhibitors for metal surfaces, and a method for protecting a metal surface from corrosion by contacting the metal surface with said corrosion inhibitor.

Embodiments of the invention concern copolymers and nanoparticles for use as delivery agents for one or more agents for therapy for a medical condition of humans and animals. Some of embodiments of the invention provide new reagents for biomedical research in cell culture, animal models and plants, for example. The copolymers comprise PLGA and PEI and, in some embodiments, also comprise 1-(3-aminopropyl)-4-methylpiperazine (APMP), Fc binding peptide and/or antibody. In certain embodiments, APMP-PLGA-PEI, Fc binding peptide/antibody-PLGA-PEI or Fc binding peptide/antibody-APMP-PLGA-PEI nanoparticles comprising one or more therapeutic agents are delivered to an individual in need thereof or used for biomedical research in cell cultures, animal models and plants.

A liquid crystal polyester resin composition containing 100 parts by mass of a liquid crystal polyester resin; and at least 5 parts by mass and at most 100 parts by mass of glass components; wherein the glass components contain glass fibers having a length of more than 50 μm and glass fine powders having a length of at least 4 μm and at most 50 μm; the number-average fiber length of the glass fibers is at least 200 μm and at most 400 μm; and the content of the fine powders is at least 20% and at most 95% relative to a total number of the glass components.

Described herein is an alkoxylated polyalkylene imine or an alkoxylated polyamine according to the general formula (I)

##STR00001##

Also described herein is a process for preparing such alkoxylated polyalkylene imines or alkoxylated polyamines as well as a method of using such compounds within, for example, cleaning compositions and/or in fabric and home care products. Also described herein are compositions or products that include the alkoxylated polyalkylene imine or the alkoxylated polyamine.

The present disclosure relates to improvements in the selection and formulation of PBAE polymers using a design of experiment approach, in which statistical methods are used to limit possible experimental conditions. The present disclosure relates to improved PBAE polymers and formulations.

The present disclosure relates to improvements in the selection and formulation of PBAE polymers using a design of experiment approach, in which statistical methods are used to limit possible experimental conditions. The present disclosure relates to improved PBAE polymers and formulations.

The present invention relates to a polymer comprising repeating units consisting of a substituted pyrrole ring. In particular, the repeating units consist of substituted pyrrole containing polar groups capable of interacting with carbon allotropes such as carbon nanotubes, graphene or nanographites, in order to improve the chemical-physical characteristics of the allotropes mainly by increasing their dispersibility and stability in liquid media and in polymer matrices. The invention also relates to products of addition of these polymers with carbon allotropes in order to obtain easily dispersible macromolecules.

The present disclosure provides a pour point dispersant composition comprising an alkoxylated alkyl amine polyester. The pour point depressant composition may optionally be combined with a solvent and added to a hydrocarbon composition to improve the cold-flow properties of the hydrocarbon composition.