Interpolymer paste resin and its preparing method

A technology of paste resin and copolymerization, which is applied in the field of preparing vinyl chloride-vinyl acetate copolymer paste resin, and can solve problems such as inability to form paste, irregular shape, and inability to apply PVC paste resin processing and application fields.

Inactive Publication Date: 2004-03-10
SHENYANG CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the vinyl chloride-vinyl acetate copolymer resin produced by the suspension polymerization method can reduce the plasticizing temperature, the particle size of the product is 50-250 μm, the shape is irregular and porous, and it can only swell in the plasticizer and cannot be paste, so it cannot Applied in PVC paste resin processing application field

Method used

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  • Interpolymer paste resin and its preparing method
  • Interpolymer paste resin and its preparing method
  • Interpolymer paste resin and its preparing method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Feeding formula: vinyl chloride 95 (weight percent, the same below), vinyl acetate 5, pure water 120, sodium lauryl sulfate 1.2, C 12-26 Fatty alcohol 1.5, azobisisoheptanonitrile 0.02, toluene 0.1, ethylhexyl peroxydicarbonate 0.01.

[0028] Sodium lauryl sulfate, C 12-26 Fatty alcohol, 10 parts of pure water (DW) was added to the emulsifier dissolving tank ( figure 1 Stir in equipment 3). Azobisisoheptanonitrile, toluene, 5 parts of pure water are added to initiator dissolving tank 1 ( figure 1 Stir in equipment 1). Add ethylhexyl peroxydicarbonate, 5 parts of pure water to initiator dissolving tank 2 ( figure 1 Stir in equipment 2). Simultaneously vinyl chloride (VC), vinyl acetate (VAC), pure water (100 parts), emulsifier after dissolving, initiator are added dispersion tank ( figure 1 Middle equipment 4), open dispersion pump ( figure 1 Middle equipment 5), while dispersing, towards the polymerization kettle ( figure 1 Middle equipment 6) feeding, the dispe...

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Abstract

A pasty copolymer resin of chloroethylene-vinyl acetate is prepared through under the protection of surfactant dispersing the chloroethylene monomer and vinyl acetate monomer in water by use of high-speed pump or slowly stirring to form fine liquid drips, polymerizing at 40-65 deg.C under the action of trigger system to obtain copolymer latex with 0.1-2.0 microns glanularity, and spray drying. Its advantages are better paste-forming performance and good low-temp plasticity.

Description

technical field [0001] The invention belongs to the technical field of macromolecule chemical industry, in particular to prepare vinyl chloride-vinyl acetate copolymerization paste resin through microsuspension or emulsion copolymerization method. Background technique [0002] At present, there are polyvinyl chloride (PVC) paste resin products produced in China. The main methods of preparation are emulsion polymerization and microsuspension polymerization. The primary particle size of the product is 0.1-2.0 μm, the shape is spherical, and it is applied in the form of a paste (plasticized paste) with a plasticizer. The plasticized paste only needs to be heated. It can be made into solid products after plasticizing, and the plasticizing temperature is 140-230°C. Its main application areas are as follows: (1) Coating products: clothing and outerwear, gloves, raincoats, automotive interior decoration, wallpaper, floor leather, luggage bags, interior decoration of trains and bus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/26C08F214/06
Inventor 马竞朱静秋刘卫东杨艳华邵长伟
Owner SHENYANG CHEM IND CO LTD
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