Polyurethane Adhesive For Shoes

The invention relates to a nano polyurethane shoe adhesive and a manufacturing method thereof, which are obtained by intercalation polymerization of nano technology.

It has the advantages of strong initial adhesion, good tensile strength, heat resistance and oil resistance, and high adhesion to non-polar materials.

The raw materials for making this product are easy to source, the original equipment can still be used, the operation is simple, the process requirements are easy to achieve, and the product quality is stable.

Because the overall performance of the product is improved, the performance price ratio is high.

The adhesive is used for the sole of PU, PVC, EVC, rubber and PU, PVC, cowhide and pig skin.

It can be used for manual and mechanical cold water bonding process and hot injection molding process.

principal claim

Claim 1.. A nano polyurethane shoe adhesive is made up of polyurethane / layered silicate nano elastomers, acrylates and solvents.

It is characterized by: (1) 80-86% polyadipic acid -1, 4- butanediol, 8-12% poly (epsilon caprolactone), 2-3% two cyanate ester, 4-5% nano carrier: chitosan, organic montmorillonite, zeolite and SiO2 molecular sieve type (one of them).

(2) 20-40% acrylic ester: methacryl alkyl silane, methyl methacrylate, butyl acrylate, acrylic acid (two of them), 20-40% toluene, 22-30% acetone, 22- 30% ethyl acetate, 0.01% toluene peroxide, etc.