Long-chain dicarboxylic acids are used in making copolyamides, which are mainly used as hot melt adhesives in the textile industry. Adhesives made from long-chain dicarboxylic acids demonstrate excellent flexibility and stability in solvents and are considered to be excellent hot melt adhesives for high-grade textiles. Our Novacid DC11 to DC14 can be used to produce copolyamides.

Our Long-chain dicarboxylic acids are critical for polyamide hot-melt adhesives (HMAs) and saturated polyester resins used in coatings.
- Hot-Melt Adhesives (HMAs):

- Production: Polycondensation of LCDAs with diamines/alcohols to form low-molecular-weight polyamides (MW 5,000–20,000).

- Benefits: Fast setting, high bond strength on polar/non-polar substrates, heat resistance (120–180°C short-term), excellent flexibility, good chemical resistance.

- End Uses: Garment interlinings, footwear bonding, electronic component encapsulation, automotive interior assembly, packaging (paperboard, plastic films).