| 摘要 |
1530517 Modifying amide polymers CASSELLA FARBWERKE MAINKUR AG 6 Aug 1976 [9 Aug 1975] 32854/76 Heading C3P Polymers containing 0À5-30 wt. per cent of -CONH 2 groups are reacted at pH 1-6 and in the presence of a solvent with 20-500 wt. per cent (of the amount equivalent to said -CONH 2 groups) of a methylolated carboxylic acid amide of formula R-CO-NH-CH 2 -OH in which R is H, C 1-17 alkyl or C 2-5 alkenyl. In examples, copolymers of acrylamide or methacrylamide with various co-monomers are reacted with such a compound in which R is H, CH 3 , C 5 H 11 , C 9 H 19 , C 11 H 23 , C 17 H 35 , CH 2 =CH-, CH 2 =C(CH 3 )-, |
