Alkyd resins; in primary forms

HS v2017 Code: 390750

About alkyd resins; in primary forms

HS code 390750 covers alkyd resins, which are a type of synthetic resin widely used in the production of paints, coatings, and adhesives. Alkyd resins are an important component in the manufacturing of various industrial and consumer products, playing a crucial role in the broader chemical industry. Their versatility and desirable properties, such as fast drying times and good adhesion, make them indispensable in a range of applications across diverse sectors.

Production process

Alkyd resins are typically produced through a polycondensation reaction between polyhydric alcohols, such as glycerol, and polybasic acids, such as phthalic anhydride. The process involves carefully controlling the reaction conditions, including temperature, pressure, and the ratio of raw materials, to achieve the desired resin properties. Manufacturers may also incorporate various modifiers or additives to tailor the resin's characteristics for specific end-uses.

Production inputs

The main inputs required for the production of alkyd resins include polyhydric alcohols, polybasic acids, and various solvents and additives. Commonly used polyhydric alcohols are glycerol, pentaerythritol, and trimethylolpropane, while common polybasic acids include phthalic anhydride, maleic anhydride, and adipic acid. Manufacturers also rely on specialized equipment, such as reactors, distillation columns, and mixing tanks, to facilitate the resin production process.

Production outputs

Alkyd resins produced under HS code 390750 are primarily used as binders in the manufacture of paints, coatings, and varnishes. They are also utilized in the production of inks, adhesives, and certain types of plastics. The output of this industry is often consumed by other industries, such as 320810 Paints and varnishes based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in a non-aqueous medium, 320820 Paints and varnishes based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in an aqueous medium, and 350691 Adhesives based on polymers of headings 3901 to 3913 or on rubber, among others.

Revisions to 390750

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 390750. The most recent 1 version of this code (390750) is in the HS v2022 system:

This page shows a legacy version of code 390750 ( HS v2017).

Newer versions
Older versions

Family tree for alkyd resins; in primary forms

    graph LR
    A["<a href='/classifications/hs/v2017/39'>39: Plastics and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2017/3907'>3907: Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms</a>"]
B --> C["<a href='/classifications/hs/v2017/390750'>390750: Alkyd resins; in primary forms</a>"]

    B --> D["<a href='/classifications/hs/v2017/390710'>390710: Polyacetals; in primary forms</a>"]
B --> E["<a href='/classifications/hs/v2017/390720'>390720: Polyethers; in primary forms, excluding polyacetals</a>"]
B --> F["<a href='/classifications/hs/v2017/390730'>390730: Epoxide resins; in primary forms</a>"]
B --> G["<a href='/classifications/hs/v2017/390740'>390740: Polycarbonates; in primary forms</a>"]
B --> H["<a href='/classifications/hs/v2017/390761'>390761: Poly(ethylene terephthalate); in primary forms, having a viscosity of 78ml/g or higher</a>"]
B --> I["<a href='/classifications/hs/v2017/390769'>390769: Poly(ethylene terephthalate); in primary forms, having a viscosity of less than 78ml/g</a>"]
B --> J["<a href='/classifications/hs/v2017/390770'>390770: Poly(lactic acid); in primary forms</a>"]
B --> K["<a href='/classifications/hs/v2017/390791'>390791: Polyesters; n.e.c. in heading no. 3907, unsaturated, in primary forms</a>"]
B --> L["<a href='/classifications/hs/v2017/390799'>390799: Polyesters; n.e.c. in heading no. 3907, saturated, in primary forms</a>"]

    

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