| abstract |
An adhesive composition resistant to elevated temperature and particularly suitable for bonding to a substrate a composite structure thermoformable at a high temperature is an aqueous dispersion containing as its main components a copolymer of 2-chloro-1,3-butadiene with 2,3-dichloro-1,3-butadiene made at a temperature of at most 35 °C, preferably at most 25 °C, a rosin ester, and zinc oxide or magnesium oxide. The solids content of the adhesive composition is about 40-65 weight percent, preferably 50-60 weight percent. The composition may also contain, and usually does contain, further additives such as, for example, stabilizers, antioxidants, surfactants, and gum rosin esters. |