| 摘要 |
<p>1399656 Treating polyester fibres BEAUNIT CORP 14 April 1972 [3 June 1971] 17299/72 Heading DIP [Also in Division C3] The surface of polyester fibres is modified by treatment with a composition comprising a mixture of: (I) 10-50% by wt. of a copolymer having 15-30% by wt. of ester units, 60-80% by wt. of oxyalkylene groups and 1-25% by wt. of polyepoxy containing groups and (II) from 15-60% by wt. another polyepoxide. I may comprise ethylene terephthalate units, polyoxyethylene units (av. M.W. 1500-6000) and a polyglycidyl ether radical derived from the reaction product of epichlorohydrin and glycerol. II may be a polyglycidayl ether of glycerol. The composition may also contain 10-50% by wt. of a textile lubricating agent. The compositions may co-crystallise on to the surface of polyester fibres having similar ester units. An RFL latex may be applied simultaneously or separately. The treated fibres have enhanced adhesion to rubber.</p> |
