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[Chemical Knowledge]：What are the upstream raw materials for alkyd resins? What do the downstream products contain?

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As an important raw material for chemical production, alkyd resin is widely used in coatings, inks, adhesives and other fields. Its upstream and downstream related products are numerous, and some of the main upstream and downstream products will be described in detail below.

upstream associated products:

1. fatty acid: fatty acid is one of the main raw materials for the production of alkyd resin, commonly used fatty acids include stearic acid, linolenic acid, tung oil and so on.
2. Polyols: Polyols are another main raw material in alkyd resins. Commonly used polyols include glycerin, pentaerythritol, etc.
3. Acidic catalyst: Acidic catalyst is used to promote the esterification reaction of alkyd resin. Commonly used acidic catalysts include sulfuric acid, phosphoric acid, etc.

downstream related products:

1. coatings: alkyd resin as an excellent film-forming material, widely used in the preparation of various coatings, including architectural coatings, wood coatings, metal coatings, etc.
2. Ink: Alkyd resin can be used to prepare printing ink, with good printability and drying properties.
3. Adhesives: Alkyd resins can be used to prepare various adhesives, such as woodworking adhesives, packaging adhesives, etc.

In the upstream and downstream related products of alkyd resin, there are some important derivatives and by-products, such as:

1. Phthalic anhydride: Phthalic anhydride can be used as a modifier of alkyd resin to improve its weather resistance, water resistance and other properties.
2. Glycerin: Glycerin is a by-product in the production of alkyd resins and can be used in the preparation of food additives, cosmetics, etc.

In short, there are many upstream and downstream related products of alkyd resin, and its application fields are wide, which plays an important role in promoting the development of chemical industry.

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