| 摘要 |
1475569 Bonding compositions EASTMAN KODAK CO 30 Oct 1974 [30 Oct 1973] 46994/74 Heading C3R [Also in Division A2] A bonding composition comprises 0À1 to 20% by weight of water, a glycol selected from 1,2-propane-diol, 1,3-propanediol, 1,4-butanediol, 1,2-butanediol and 1,3-butanediol, and 5 to 50% by weight of a polyester which is dispersible in water and the glycol and is derived from the sodium, potassium or lithium salt of sulphoisophthalic acid, terephthalic acid or isophthalic acid, and diethylene glycol or triethylene glycol. The polyester used in the Examples is derived from diethylene glycol, 90 mol per cent isophthalic acid and 10 mol per cent sodiosulphoisophthalic acid. |
