The present invention relates to a resin guardrail consisting of a resin composition containing polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene (ABS) and fixed to a vertical post (P) and, more particularly, relates to a resin guardrail having improved durability and impact resistance, the resin guardrail being produced through extrusion molding of the resin composition containing polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene (ABS) and made by mixing 1 to 10 parts by weight of microcapsules containing acrylic acid (CH.sub.2=CHCOOH), hydrogen peroxide (H.sub.2O.sub.2), lithium nitrate trihydrate (LiNO.sub.33H.sub.2O), and acrylonitrile (CH.sub.2CHCN), based on 100 parts by weight of resin mixture containing the PVC compound and the ABS compound mixed at a weight ratio of 50:50 to 90:10.

The present invention relates to a resin guardrail consisting of a resin composition containing polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene (ABS) and fixed to a vertical post (P) and, more particularly, relates to a resin guardrail having improved durability and impact resistance, the resin guardrail being produced through extrusion molding of the resin composition containing polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene (ABS) and made by mixing 1 to 10 parts by weight of microcapsules containing acrylic acid (CH.sub.2=CHCOOH), hydrogen peroxide (H.sub.2O.sub.2), lithium nitrate trihydrate (LiNO.sub.33H.sub.2O), and acrylonitrile (CH.sub.2CHCN), based on 100 parts by weight of resin mixture containing the PVC compound and the ABS compound mixed at a weight ratio of 50:50 to 90:10.

The present disclosure provides a composition for preparing a vinyl chloride-based polymer, including a vinyl chloride-based first seed; a vinyl chloride-based second seed; an initiator composition including a water-soluble initiator and an oil-soluble initiator; a reducing agent; and a vinyl chloride-based monomer, wherein a metal catalyst is not included in the composition, and a method for preparing a vinyl chloride-based polymer using the same.

The present disclosure provides a composition for preparing a vinyl chloride-based polymer, including a vinyl chloride-based first seed; a vinyl chloride-based second seed; an initiator composition including a water-soluble initiator and an oil-soluble initiator; a reducing agent; and a vinyl chloride-based monomer, wherein a metal catalyst is not included in the composition, and a method for preparing a vinyl chloride-based polymer using the same.

A processing method of a base material sheet includes winding out the base material sheet wound up by a first core and a first porous sheet wound up by a second core, winding up by a third core the base material sheet and the first porous sheet to be overlapped with each other, and processing the base material sheet by a first processing liquid held in the first porous sheet; and winding out the base material sheet and the first porous sheet overlappingly wound up by the third core, winding up the first porous sheet by the second core, and winding up the base material sheet by the first core.

A processing method of a base material sheet includes winding out the base material sheet wound up by a first core and a first porous sheet wound up by a second core, winding up by a third core the base material sheet and the first porous sheet to be overlapped with each other, and processing the base material sheet by a first processing liquid held in the first porous sheet; and winding out the base material sheet and the first porous sheet overlappingly wound up by the third core, winding up the first porous sheet by the second core, and winding up the base material sheet by the first core.

Polymer compositions for UV curable primer formulations, as described herein. The primer formulations contain a modifier selected from the following: at least one modifier selected from a) through d) below: a) R1R2CCR3-(CO)Z (Formula A), as described herein, b) an acrylate-containing oligomer that has a Mn1500 g/mol, and an acid value from 50 to 500 mg KOH/g; c) a random terpolymer comprising, in polymerized form, vinyl chloride, vinyl acetate, and at least one of the following: a hydroxyl-containing alkyl acrylate, a hydroxyl-containing alkyl meth-acrylate, or a combination thereof or d) any combination of a) through c). Such primer formulations are useful for the binding of olefin-based polymer foams.

Polymer compositions for UV curable primer formulations, as described herein. The primer formulations contain a modifier selected from the following: at least one modifier selected from a) through d) below: a) R1R2CCR3-(CO)Z (Formula A), as described herein, b) an acrylate-containing oligomer that has a Mn1500 g/mol, and an acid value from 50 to 500 mg KOH/g; c) a random terpolymer comprising, in polymerized form, vinyl chloride, vinyl acetate, and at least one of the following: a hydroxyl-containing alkyl acrylate, a hydroxyl-containing alkyl meth-acrylate, or a combination thereof or d) any combination of a) through c). Such primer formulations are useful for the binding of olefin-based polymer foams.

The present invention relates to a method of preparing a vinyl chloride-based polymer, which includes inducing the nucleation of particles by adding a mercaptan-based chain transfer agent to a monomer composition including a vinyl chloride-based monomer and a preliminary polymerization initiator (preliminary polymerization); and preparing a polymer by mixing a vinyl chloride-based monomer and the particle nuclei and adding a main polymerization initiator (main polymerization). In the preparation method, a vinyl chloride-based polymer having a uniform molecular weight distribution and a desired number average molecular weight may be provided by controlling a degree of polymerization of a vinyl chloride-based polymer prepared in such a way that dispersibility is ensured by adjusting the point of time to add the mercaptan-based chain transfer agent to the point of time to reach a specific conversion rate of the preliminary polymerization.

The present invention relates to a method of preparing a vinyl chloride-based polymer, which includes inducing the nucleation of particles by adding a mercaptan-based chain transfer agent to a monomer composition including a vinyl chloride-based monomer and a preliminary polymerization initiator (preliminary polymerization); and preparing a polymer by mixing a vinyl chloride-based monomer and the particle nuclei and adding a main polymerization initiator (main polymerization). In the preparation method, a vinyl chloride-based polymer having a uniform molecular weight distribution and a desired number average molecular weight may be provided by controlling a degree of polymerization of a vinyl chloride-based polymer prepared in such a way that dispersibility is ensured by adjusting the point of time to add the mercaptan-based chain transfer agent to the point of time to reach a specific conversion rate of the preliminary polymerization.