CAS 9004-36-8 Cellulose acetate butyrate, 35-39%

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Cellulose acetate butyrate, 35-39%

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Catalog Number

ACM9004368-2

CAS Number

9004-36-8

Product Name

Cellulose acetate butyrate, 35-39%

Structure

Category

Polymers

Description

Cellulose acetate butyrate (CAB) is a cellulose mixed fatty acid ester obtained from cellulose, acetic anhydride and butyric anhydride under the action of an acid catalyst. CAB is a thermoplastic resin, and the content of acetyl and butyryl groups in different products varies greatly, which has a great impact on the performance and use of the product. Cellulose acetate butyrate is an additive widely used in the coating industry. Compared with traditional cellulose acetate, it has a wider range of solubility. It not only dissolves in strong polar solvents, but also cellulose acetate butyrate with high butyryl content even Soluble in alcohol solvents. Therefore, CAB is widely used in wood coatings, plastic coatings and other coatings, and has the functions of improving coating fluidity, leveling, outdoor durability, pigment orientation and flexibility.

Molecular Weight

Average Mn ~12 kDa

Melting Point

127-240 °C

Density

1.25 g/mL at 25 °C (lit.)

Solubility

Practically insoluble in water, soluble in acetone, in formic acid and in a mixture of equal volumes of methanol and methylene chloride, practically insoluble in ethanol (96 per cent).

Appearance

White

Application

Used in high-grade coatings, such as UV-curable coatings;Photographic chemicals;Polymer modification;Ink

Storage

2-8 °C

Color

White

Composition

C36H70O19

EC Number

618-381-2