A polymer composition containing a polyoxymethylene polymer in the form of particles for rotational molding applications is disclosed. The polyoxymethylene polymer is selected to have physical characteristics and is combined with one or more impact modifiers in order to produce hollow vessels and other articles having improved physical properties, such as impact strength resistance.

This invention relates to a polymer composition comprising: (A) at least one polymer comprising at least one diol residue, and (B) a stabilizer composition comprising: (1) at least one primary antioxidant comprising at least one phenolic antioxidant; and (2) at least one secondary antioxidant comprising at least one phosphite, and (3) at least one chain extending agent;
wherein the b* value for said polymer composition is less than 10 according to the L*, a* and b* color system of the CIE (International Commission on Illumination) after being heated for at least three hours at 200° C. or 24 hours at 175° C.

This invention relates to a polymer composition comprising: (A) at least one polymer comprising at least one diol residue, and (B) a stabilizer composition comprising: (1) at least one primary antioxidant comprising at least one phenolic antioxidant; and (2) at least one secondary antioxidant comprising at least one phosphite, and (3) at least one chain extending agent;
wherein the b* value for said polymer composition is less than 10 according to the L*, a* and b* color system of the CIE (International Commission on Illumination) after being heated for at least three hours at 200° C. or 24 hours at 175° C.

The present application discloses a bending-resistant polyester film and its production method thereof. The chemical structure of the bending-resistant polyester composition comprises monomers having elastic conformation. The film made from the composition of polyester of the present invention through production processes such as melt extrusion and biaxial drawing still has excellent flexibility and optical properties.

A coloring composition includes at least one compound S selected from a compound S-1 represented by Formula (1) or a compound S-2 in which the compound S-1 is coordinated to a metal atom, a pigment, a resin P, and a solvent, in which the resin P includes at least one selected from a graft resin P-1 having a specific graft chain, a block copolymer P-2 including a specific structure, or a resin P-3 in which at least one terminal of a polymer chain including a specific structure is capped with an acid group.

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A polymer composition containing a thermoplastic elastomer in an amount of greater than 50% by weight is formulated in the form of particles for rotational molding applications. The thermoplastic elastomer can be a copolyester elastomer. Various different components are formulated into a polymer powder that is then used in rotational molding to produce various different articles.

A polymer composition containing a thermoplastic elastomer in an amount of greater than 50% by weight is formulated in the form of particles for rotational molding applications. The thermoplastic elastomer can be a copolyester elastomer. Various different components are formulated into a polymer powder that is then used in rotational molding to produce various different articles.

Disclosed herein are a biodegradable polymer microparticle for a filler comprising a core and a shell, wherein the core contains secondary particles including aggregates of a plurality of primary particles, the shell has a raspberry shaped structure, an average particle diameter (D.sub.50) of the biodegradable polymer microparticle ranges from 20 to 200 μm, a manufacturing method thereof, a freeze-dried body including the same, and filler injection including the same.

Provided is an antistatic agent (Z) containing: a block polymer (A) having a block of a hydrophobic polymer (a) and a block of a hydrophilic polymer (b) as structure units; and a sulfonate (S), the sulfonate (S) being a salt of an alkylbenzenesulfonic acid anion which has a C6-C18 alkyl group, the sulfonate (S) including at least two alkylbenzenesulfonates different in the number of carbon atoms of the alkyl group in the anion, the sulfonate (S) satisfying the following formula:

0.40≤W(n)/[W(n−1)+W(n)+W(n+1)]≤0.90

wherein n is the number of carbon atoms of the alkyl group in the anion of an alkylbenzenesulfonate accounting for the highest proportion by weight in the sulfonate (S); W(n) is a weight of said alkylbenzenesulfonate; and W(n−1) and W(n+1) are respectively a weight of an alkylbenzenesulfonate containing an anion having an alkyl group with (n−1) carbon atoms and a weight of an alkylbenzenesulfonate containing an anion having an alkyl group with (n+1) carbon atoms.

Provided is an antistatic agent (Z) containing: a block polymer (A) having a block of a hydrophobic polymer (a) and a block of a hydrophilic polymer (b) as structure units; and a sulfonate (S), the sulfonate (S) being a salt of an alkylbenzenesulfonic acid anion which has a C6-C18 alkyl group, the sulfonate (S) including at least two alkylbenzenesulfonates different in the number of carbon atoms of the alkyl group in the anion, the sulfonate (S) satisfying the following formula:

0.40≤W(n)/[W(n−1)+W(n)+W(n+1)]≤0.90

wherein n is the number of carbon atoms of the alkyl group in the anion of an alkylbenzenesulfonate accounting for the highest proportion by weight in the sulfonate (S); W(n) is a weight of said alkylbenzenesulfonate; and W(n−1) and W(n+1) are respectively a weight of an alkylbenzenesulfonate containing an anion having an alkyl group with (n−1) carbon atoms and a weight of an alkylbenzenesulfonate containing an anion having an alkyl group with (n+1) carbon atoms.