Applications and Formulations of Water-Based Neoprene-Based Adhesives

Neoprene latex adhesives are primarily used in the footwear industry, particularly for preparing the upper adhesive for leather shoes, and can bond soles, toe caps, canvas, and other fibres.

Analysis of Adhesive Formulations for Bonding Shoe Soles, Canvas, and Various Fabrics

Polyacrylic Acid(PAA) CAS 9003-01-4

Polyvinyl Alcohol（PVA) CAS 9002-89-5

Fluororubber(FKM-26) CAS 9006-04-6

In this formulation, viscosity-increasing agents may include acrylic resins, coumarone resins, asphalt, polyvinyl alcohol, and starch. Thickeners may include methylcellulose, natural latex, and polyacrylates, which provide strong adhesion.

Adhesives for Bonding Various Fibers (Plant Fibers, Animal Fibers, Synthetic Fibers, etc.)

Zinc Diethyldithiocarbamate (ZDEC) CAS 14324-55-1

Sodium Dodecyl Sulfate CAS 151-21-3

Zinc oxide CAS 1314-13-2

This formulation is a filler-type neoprene latex adhesive. Anionic or nonionic surfactants may be used as stabilisers. It is solvent-free, highly crystalline, highly polar, and flame-retardant.

Adhesives for Bonding Leather, Rubber, and Other Materials

This emulsion exhibits strong adhesive strength to both leather and rubber. Apply the adhesive to the substrates, allow the moisture to evaporate completely, then heat the adhesive film to 40–75°C to decrystallise it before bonding while it is still hot. It is used to bond cotton fabric, fibers, paper, wood, and other materials.