| 摘要 |
PCT No. PCT/EP95/02433 Sec. 371 Date May 7, 1997 Sec. 102(e) Date May 7, 1997 PCT Filed Jun. 22, 1995 PCT Pub. No. WO96/00221 PCT Pub. Date Jan. 4, 1996Optical brightening agents for use in textiles, paper, detergents correspond to the formula <IMAGE> I <IMAGE> where R, R1 are preferably derived from amino-acids, particularly glutamic and iminodiacetic acids. |
