| 摘要 |
<p>A process for bonding polyester fabrics of spun yarns to rubber comprises dusting or doctoring with an intermediate layer of at least one anhydrous phenol and at least one anhydrous aldehyde, a synthetic resin finished surface of the polyester fabric, or yarn and/or the rubber surface, contacting the two surfaces, and vulcanizing the rubber. The rubber may be natural rubber or a styrene/butadiene rubber. Preferably the intermediate layer is of dry pulverous resorcinolparaformaldehyde, although suitable phenols include hydroquinone, pyrocatechol, pyrogallol and phloroglucine. The dry components of the phenolaldehyde condensation products may be applied separately from one another. The resin coating on the spun yarn or fabric is preferably an epoxide resin, although other examples are given in Examples 3, 4, 5. The method is especially applicable to producing belts and fire hoses.ALSO:A process for bonding polyester spun yarns to rubber comprises dusting or doctoring with an intermediate layer of at least one anhydrous phenol and at least one anhydrous aldehyde a synthetic resin finished surface of the polyester fabric, or yarn and/or the rubber surface, contacting the two surfaces, and vulcanising the rubber. The rubber may be natural rubber or a styrene/butadiene rubber. Preferably the intermediate layer is of dry pulverous resorcinol-paraformaldehyde, although suitable phenols include hydroquinone, pyrocatechol, pyrogallol and phloroglucine. The dry components of the phenol-aldehyde condensation products may be applied separately from one another. The resin coating on the spun yarn is preferably an epoxide resin, although other examples are given in Examples 3, 4, 5. The method is especially applicable to producing belts and fire hoses.</p> |
