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Paste vinyl chloride resin composition and method for producing pasty vinyl chloride resin having excellent polymerization heat control performance using the composition

A technology of vinyl chloride resin and composition, applied in the field of preparing paste vinyl chloride resin, can solve the problems of volatility and toxicity of substances

Active Publication Date: 2016-01-13
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has the disadvantage that the substances added are volatile and toxic

Method used

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  • Paste vinyl chloride resin composition and method for producing pasty vinyl chloride resin having excellent polymerization heat control performance using the composition
  • Paste vinyl chloride resin composition and method for producing pasty vinyl chloride resin having excellent polymerization heat control performance using the composition

Examples

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preparation example Construction

[0043] The preparation method of the present invention may further include a third step, which includes: adding a plasticizer to the paste vinyl chloride resin, followed by foaming and crosslinking to prepare a plastisol.

[0044] The viscosity of the plastisol obtained through the third step preferably satisfies the following formula.

[0045] [Formula 1]

[0046] 1.3≤B / A≤3.6

[0047] where A is the initial viscosity (cP) of the plastisol and B is the elapsed viscosity (cP) of the plastisol after one day.

Embodiment

[0053] Hereinafter, the present invention will be described in more detail with reference to the following examples. These examples are provided only to illustrate the present invention and should not be construed as limiting the scope and spirit of the present invention.

preparation example

[0055]

[0056] 90kg deionized water, 100gKH 2 PO 4 , 10gNaOH (98%), 1kg lauryl peroxide and 0.6g p-benzoquinone were added to 0.2m 3 In a high-pressure reactor, a vacuum is applied to the reactor. 70 kg of vinyl chloride monomer and 8 kg of sodium dodecylbenzenesulfonate (15%) were added to the reactor in a vacuum state, followed by stirring for 30 minutes. After the internal temperature of the reactor dropped to 20° C. or lower, the above reaction mixture was homogenized for 3 hours using a rotor-stator type homogenizer.

[0057] After homogenization, the internal temperature of the reactor was adjusted to 50° C. and a polymerization reaction was performed. When the pressure of the reactor reaches 3.5kg / cm 2 When the reaction was complete, unreacted vinyl chloride monomer was collected and removed to obtain a latex with an average particle size of 0.65 μm and a total solids content (TSC) of 40%.

[0058] [Example]

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Abstract

The present invention discloses a paste vinyl chloride resin composition and a method for preparing paste vinyl chloride resin with improved polymerization heat control using the composition. It is possible to effectively improve the heat control of the reflux condenser, and effectively control the initial viscosity and the elapsed viscosity of the plastisol prepared from the paste vinyl chloride resin without using an additional foam detector or performing inconvenient operations such as Add defoamer according to the height of the foam layer.

Description

technical field [0001] The present invention relates to a paste vinyl chloride resin composition and a method for producing paste vinyl chloride resin having improved polymerization heat control performance using the composition. More specifically, the present invention relates to a paste vinyl chloride resin composition and a method for producing paste vinyl chloride resin in which the thermal control performance of a reflux condenser for polymerization is improved, and using the paste chlorine Plastisols made from vinyl resins have lower viscosities than plastisols made by conventional methods. Background technique [0002] Paste vinyl chloride resins are general-purpose resins widely used in household applications such as surface materials for architectural applications, wallpapers, artificial leather, woven fabrics, sheets, and films, and industrial applications. [0003] This paste vinyl chloride resin is prepared by emulsion polymerization in a polymerization system c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F14/06C08F2/26C08F2/28C08L27/06
CPCC08F114/06C08K5/19C08K5/41C08L27/06C08F2/22C08F14/06
Inventor 李灿熙金汉洪李贤珉裵兴权
Owner LG CHEM LTD