The present invention provides a polymer composition having a low water absorption (i.e. being dampproof), excellent electrical insulation, high adhesion to various substrates, and excellent thermal stability. The present invention relates to a polymer composition comprising (A) a dimer acid-based polyamide and (B) an olefin-based-modified polymer, wherein the olefin-based-modified polymer (B) comprises a chemical structure derived from an olefin and a chemical structure derived from an amide.

The present invention provides a polymer composition having a low water absorption (i.e. being dampproof), excellent electrical insulation, high adhesion to various substrates, and excellent thermal stability. The present invention relates to a polymer composition comprising (A) a dimer acid-based polyamide and (B) an olefin-based-modified polymer, wherein the olefin-based-modified polymer (B) comprises a chemical structure derived from an olefin and a chemical structure derived from an amide.

Provided are: an antistatic agent and an antistatic agent composition which are capable of providing excellent antistatic effect in a small amount and have sufficient persistence and wiping resistance without impairing the intrinsic physical properties of a resin; and an antistatic resin composition and a molded article using the same.

The antistatic agent includes a polymer compound (E) having a structure in which a diol, an aliphatic dicarboxylic acid, an aromatic dicarboxylic acid, a compound (B) which comprises at least one group represented by the following Formula (1) and has hydroxyl groups at both ends, and a polyhydric alcohol (D) having three or more hydroxyl groups are bound via ester bonds:

—CH.sub.2—CH.sub.2—0—  (1)

The invention relates to a composition for production of a thermoplastic moulding compound, wherein the composition comprises or consists of at least the following constituents: A) 50.0% to 95.0% by weight of at least one polymer selected from the group consisting of aromatic polycarbonate, aromatic polyestercarbonate and aromatic polyester, B) 1.0% to 40.0% by weight of polymer free of epoxy groups, consisting of B1) rubber-modified graft polymer, prepared by emulsion polymerization and B2) optionally rubber-free vinyl (co)polymer, C) 0.1% to 7.5% by weight of a polymer containing structural elements that derive from styrene and an epoxy-containing vinyl monomer, D) 1.0% to 20.0% by weight of phosphorus-containing flame retardant, E) 0.1% to 10.0% by weight of additives, and F) 0% to 10.0% by weight of one or more fillers,
where component C) has a weight ratio of structural elements that derive from styrene to those that derive from epoxy-containing vinyl monomers of 100:1 to 1:1. The invention further relates to the use of the composition and to a process for producing such a moulding compound and to the moulding compound itself. The invention additionally relates to a moulded article formed from the aforementioned moulding compound.

The invention relates to a composition for production of a thermoplastic moulding compound, wherein the composition comprises or consists of at least the following constituents: A) 50.0% to 95.0% by weight of at least one polymer selected from the group consisting of aromatic polycarbonate, aromatic polyestercarbonate and aromatic polyester, B) 1.0% to 40.0% by weight of polymer free of epoxy groups, consisting of B1) rubber-modified graft polymer, prepared by emulsion polymerization and B2) optionally rubber-free vinyl (co)polymer, C) 0.1% to 7.5% by weight of a polymer containing structural elements that derive from styrene and an epoxy-containing vinyl monomer, D) 1.0% to 20.0% by weight of phosphorus-containing flame retardant, E) 0.1% to 10.0% by weight of additives, and F) 0% to 10.0% by weight of one or more fillers,
where component C) has a weight ratio of structural elements that derive from styrene to those that derive from epoxy-containing vinyl monomers of 100:1 to 1:1. The invention further relates to the use of the composition and to a process for producing such a moulding compound and to the moulding compound itself. The invention additionally relates to a moulded article formed from the aforementioned moulding compound.

Disclosed is absorbable bone wax and a preparation method thereof. The preparation method comprises the steps of: 1) mixing polyoxypropylene polyoxyethylene block copolymer (PEG-PPG-PEG) and polyoxypropylene polyoxyethylene random copolymer (PEG-PPG), and stirring evenly under heating to obtain a liquid mixture; 2) under mechanical stirring and heating condition, adding hemostatic starch microspheres to the liquid mixture obtained in step 1) to obtain a uniformly-mixed liquid; and 3) adding a bone repair material to the uniformly-mixed liquid obtained in step 2), and mixing uniformly to obtain a mixed solution, then pouring the mixed solution into a mold or sub-packaged bottle, and leaving at room temperature for solidifying and shaping to give the absorbable bone wax. The absorbable bone wax of the present invention can achieve the effect of rapid hemostasis, changing the relatively single hemostasis method with traditional bone wax which only depends on physical sealing.

The invention relates novel polyglycolide copolymers comprising a colorant. The copolymers may have a weight-average molecular weight (Mw) in the range of 10,000-1,000,000, a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) in the range of 1.0 to 4.0, and a yellowness index (YI) is the range of 40-90. The copolymers may have a melt index (MFR) in the range of 0.1 to 1000 g/10 min. The copolymers may have a stable yellowness index, good thermal stability and aging resistance. Also provided are a process for preparing the copolymers and a method for reducing yellowness index change rate of a polyglycolide copolymer.

The invention relates novel polyglycolide copolymers comprising a colorant. The copolymers may have a weight-average molecular weight (Mw) in the range of 10,000-1,000,000, a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) in the range of 1.0 to 4.0, and a yellowness index (YI) is the range of 40-90. The copolymers may have a melt index (MFR) in the range of 0.1 to 1000 g/10 min. The copolymers may have a stable yellowness index, good thermal stability and aging resistance. Also provided are a process for preparing the copolymers and a method for reducing yellowness index change rate of a polyglycolide copolymer.

A resist composition containing a resin component having a structural unit represented by general formula (a0-1), and a compound represented by general formula (b1). In general formula (a0-1), R is a hydrogen atom, an alkyl group, or a halogenated alkyl group, Va.sup.1 is a divalent hydrocarbon group, n.sub.a1 represents an integer of 0 to 2, Ya.sup.0 is a carbon atom, Xa.sup.0 is a group forming a monocyclic aliphatic hydrocarbon group together with Ya.sup.0, and Ra.sup.00 is an aromatic hydrocarbon group or a specific unsaturated hydrocarbon group. In general formula (b1), R.sup.b1 represents a cyclic hydrocarbon group, Y.sup.b1 represents a divalent linking group containing an ester bond, V.sup.b1 represents an alkylene group, a fluorinated alkylene group, or a single bond, and M.sup.m+ is an m-valent organic cation. ##STR00001##

A mixture contains at least one amino-regulated polyether block amide (PEBA) and at least one poly(meth)acrylate selected from poly(meth)acrylimides, polyalkyl(meth)acrylates, and mixtures thereof. The mass ratio of PEBA to poly(meth)acrylate is 95:5 to 60:40. The polyalkyl(meth)acrylate contains 80% by weight to 99% by weight of methyl methacrylate (MMA) units and 1% by weight to 20% by weight of C1-C10-alkyl acrylate units, based on the total weight of polyalkyl(meth)acrylate. The mixture can be processed to give foamed mouldings. The mouldings can be used in footwear soles, stud material, insulation or insulating material, damping components, lightweight components, or in a sandwich structure.