| 摘要 |
<p>1313522 Polyester composition GOODYEAR TIRE & RUBBER CO 10 Sept 1970 [2 Oct 1969] 43341/70 Heading C3R A polyester having improved acceptance to basic dyes contains 0À1 to 25 weight per cent, based on the total weight of the composition, of a salt of an alkoxy benzene sulphonic acid of the formulµ wherein M is an alkali metal, alkaline earth metal, ammonium or C 2-10 alkyl amine, R is a C 1-15 alkyl group or an alkyl terminated polyether and Z is hydrogen, halogen, hydroxy or C 1-15 alkyl group. Polyethylene terephthalate and sodium 2,5-dibutoxybenzene sulphonate are used in the examples.</p> |
