| 摘要 |
Car tyre ply bonding agent comprises an homogeneous dispersion of a wood extract component which does not dissolve in hydrocarbon, together with a natural polymer resin, mixed in water-miscible organic solvents. The extract component is a solid component of pine extract such as does not dissolve in petroleum hydrocarbons. The polymer resin should be plastic rosin (copolymer) or tall oil colophony. |
