| 摘要 |
Contact adhesive are aqueous emulsions having the following dry component compositions by weight: polymer component 100, resin component 10 to 50, emulsifier 0.1 to 10 and stabiliser 0.001 to 10, the polymer component comprising a terpolymer containing a chlorinated monomer, an acrylic monomer without a reactive functional group and an acrylic monomer having a reactive functional group, the polymer component having a glass transition temperature in the range -18<o>C to +10<o>C and the resin component comprising at least one of: an alkyl phenolic resin, a liquid addition product of an alkyl phenol and formaldihyde, and a terpene phenolic resin. A crosslinking agent may be included. The contact adhesives are prepared by blending an aqueous emulsion of the polymer component with the resin component in a liquid state, either molten or in solution. The solvent may subsequently be removed by evaporation. |
