Poly(vinyl alcohol); whether or not containing unhydrolysed acetate groups

HS v2022 Code: 390530

About poly(vinyl alcohol); whether or not containing unhydrolysed acetate groups

HS code 390530 covers poly(vinyl alcohol), a versatile synthetic polymer with a wide range of industrial and commercial applications. This material is produced globally and plays a crucial role in various sectors, including textiles, adhesives, paper, and packaging. Its unique properties, such as water solubility, film-forming ability, and chemical resistance, make it an essential component in many manufacturing processes and consumer products.

Production process

Poly(vinyl alcohol) is primarily produced through the hydrolysis of poly(vinyl acetate). This process involves the conversion of the acetate groups in the precursor polymer into hydroxyl groups, resulting in the formation of the final poly(vinyl alcohol) product. The specific production techniques may vary, but typically include polymerization, hydrolysis, and purification steps to ensure the desired properties and quality of the final material.

Production inputs

The main inputs required for the production of poly(vinyl alcohol) include vinyl acetate monomer, which serves as the raw material, as well as various catalysts, solvents, and processing aids. Additionally, specialized equipment, such as reactors, distillation columns, and drying systems, are necessary to facilitate the polymerization and hydrolysis processes.

Production outputs

Poly(vinyl alcohol) produced under HS code 390530 finds applications in a wide range of industries. It is commonly used in the manufacture of 391510 Polymers of ethylene, in primary forms, 391520 Polymers of styrene, in primary forms, and 391530 Polymers of vinyl chloride or of other halogenated olefins, in primary forms, where it serves as a binder, emulsifier, or additive. Additionally, poly(vinyl alcohol) is used in the production of 392010 Other plates, sheets, film, foil and strip, of plastics, non-cellular and not reinforced, laminated, supported or similarly combined with other materials, 392069 Other plates, sheets, film, foil and strip, of plastics, non-cellular and not reinforced, laminated, supported or similarly combined with other materials, and 392190 Other plates, sheets, film, foil and strip, of plastics, contributing to the versatility of this material.

Revisions to 390530

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 390530. The most recent 1 version of this code (390530) is in the HS v2022 system (this version):

This page shows the most recent version of code 390530.

Family tree for poly(vinyl alcohol); whether or not containing unhydrolysed acetate groups

    graph LR
    A["<a href='/classifications/hs/v2022/39'>39: Plastics and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2022/3905'>3905: Polymers of vinyl acetate or of other vinyl esters, in primary forms; other vinyl polymers in primary forms</a>"]
B --> C["<a href='/classifications/hs/v2022/390530'>390530: Poly(vinyl alcohol); whether or not containing unhydrolysed acetate groups</a>"]

    B --> D["<a href='/classifications/hs/v2022/390512'>390512: Poly(vinyl acetate); in aqueous dispersion, in primary forms</a>"]
B --> E["<a href='/classifications/hs/v2022/390519'>390519: Poly(vinyl acetate); (other than in aqueous dispersion), in primary forms</a>"]
B --> F["<a href='/classifications/hs/v2022/390521'>390521: Vinyl acetate copolymers; in aqueous dispersion, in primary forms</a>"]
B --> G["<a href='/classifications/hs/v2022/390529'>390529: Vinyl acetate copolymers; (other than in aqueous dispersion), in primary forms</a>"]
B --> H["<a href='/classifications/hs/v2022/390591'>390591: Vinyl acetate, vinyl ester polymers, vinyl polymers; n.e.c. in heading no. 3905, in primary forms, copolymers</a>"]
B --> I["<a href='/classifications/hs/v2022/390599'>390599: Vinyl acetate, vinyl ester polymers, vinyl polymers; n.e.c. in heading no. 3905, in primary forms, other than copolymers</a>"]

    

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    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level6
class D level6
class E level6
class F level6
class G level6
class H level6
class I level6

  class C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight