The present application relates to a field of a flame retardant polystyrene, and specifically discloses a preparation method for a flame retardant polystyrene. The preparation method for a flame retardant polystyrene includes the following steps: predissolving a brominated flame retardant containing a first active functional group in a reaction system of a styrene monomer to form a homogeneous solution; then, performing an end capping reaction by an olefin monomer containing a second active functional group to introduce a double bond at an end of the brominated flame retardant, so that it can be bonded to a polystyrene molecular chain by copolymerizing; performing a prepolymerization in a reactor to obtain a prepolymer; performing a post polymerization in the reactor or by extruding, to obtain a special material or a flame retardant masterbatch of the flame retardant polystyrene.

Provided is a polymer that when used as a main chain scission-type positive resist, can sufficiently inhibit resist pattern collapse, can favorably form a clear resist pattern, and can also improve sensitivity. The polymer includes a monomer unit (A) represented by general formula (I), shown below, and a monomer unit (B) represented by general formula (II), shown below. [In formula (I), R.sup.1 is an organic group including not fewer than 5 and not more than 7 fluorine atoms. In formula (II), R.sup.2 is a hydrogen atom, a fluorine atom, an unsubstituted alkyl group, or a fluorine atom-substituted alkyl group, R.sup.3 is a hydrogen atom, an unsubstituted alkyl group, or a fluorine atom-substituted alkyl group, p and q are each an integer of not less than 0 and not more than 5, and p+q=5.] ##STR00001##

Provided is a polymer that when used as a main chain scission-type positive resist, can sufficiently inhibit resist pattern collapse, can favorably form a clear resist pattern, and can also improve sensitivity. The polymer includes a monomer unit (A) represented by general formula (I), shown below, and a monomer unit (B) represented by general formula (II), shown below. [In formula (I), R.sup.1 is an organic group including not fewer than 5 and not more than 7 fluorine atoms. In formula (II), R.sup.2 is a hydrogen atom, a fluorine atom, an unsubstituted alkyl group, or a fluorine atom-substituted alkyl group, R.sup.3 is a hydrogen atom, an unsubstituted alkyl group, or a fluorine atom-substituted alkyl group, p and q are each an integer of not less than 0 and not more than 5, and p+q=5.] ##STR00001##

A medicine container which absorbs very little protein over time is manufactured using a resin composition including 50 to 99 wt % of a norbornene-based polymer, and 1 to 50 wt % of a hydrogenated styrene-based thermoplastic elastomer, a content of a low-molecular-weight component having a weight average molecular weight of 1000 or less in the resin composition being 3 wt % or less.

A composite electrolyte includes: a positively charged particle, a particle that is positively charged by having a coordinate bond with a cation, or a combination thereof; and a lithium salt.

A hot-melt formulation can utilize a depolymerized polymeric material such as a wax, styrenic polymer, and/or styrenic oligomer, wherein the wax, styrenic polymer, and/or styrenic oligomer is created via depolymerization of a polymer. In some embodiments, the polymer is polypropylene. In some embodiments, the polymer is polyethylene. In some embodiments, the polymer is polystyrene. In some embodiments, the hot-melt formulation can include, among other things, ethylene-vinyl acetate copolymers, olefinic block copolymer, amorphous polyolefins, styrene block copolymers, amorphous poly-alpha-olefins, thermoplastic polyolefins, tackifiers, stabilizers, paraffin waxes and/or Fisher Tropsch waxes.

A hot-melt formulation can utilize a depolymerized polymeric material such as a wax, styrenic polymer, and/or styrenic oligomer, wherein the wax, styrenic polymer, and/or styrenic oligomer is created via depolymerization of a polymer. In some embodiments, the polymer is polypropylene. In some embodiments, the polymer is polyethylene. In some embodiments, the polymer is polystyrene. In some embodiments, the hot-melt formulation can include, among other things, ethylene-vinyl acetate copolymers, olefinic block copolymer, amorphous polyolefins, styrene block copolymers, amorphous poly-alpha-olefins, thermoplastic polyolefins, tackifiers, stabilizers, paraffin waxes and/or Fisher Tropsch waxes.

The present disclosure provides a tire having excellent durability during high speed running. A tire including a sidewall portion including a thermoplastic elastomer composition having a specific heat capacity of 1.7 J/ (g .Math.K) or less, the tire having a depression with a depth of 0.2 to 3.0 mm and/or a projection with a height of 0.2 to 3.0 mm between the tread ground contact edge and the tire maximum width position of the sidewall portion.

The present disclosure provides a tire having excellent durability during high speed running. A tire including a sidewall portion including a thermoplastic elastomer composition having a specific heat capacity of 1.7 J/ (g .Math.K) or less, the tire having a depression with a depth of 0.2 to 3.0 mm and/or a projection with a height of 0.2 to 3.0 mm between the tread ground contact edge and the tire maximum width position of the sidewall portion.

The present disclosure provides a tire having excellent durability during high speed running. A tire including a sidewall portion including a thermoplastic elastomer composition having a specific heat capacity of 1.7 J/ (g .Math.K) or less, the tire having a depression with a depth of 0.2 to 3.0 mm and/or a projection with a height of 0.2 to 3.0 mm between the tread ground contact edge and the tire maximum width position of the sidewall portion.