| 摘要 |
Use is claimed of a copolymer as additive at 0.1-5 wt.% to improve the melt spinning properties of polyethylene terephthalate, the copolymer being obtained by copolymerisation of (i) 30-90 wt.% Me methacrylate (MMA); (ii) 1-70 wt.% maleic or maleimide monomer of formula (I); and (iii) 0-50 wt.% comonomer which is alpha -Me styrene, vinyl acetate, a (meth)acrylic ester other than (i), vinyl(idene) chloride, styrene, halo-substituted styrene, a vinyl- or isopropenyl-ether or a diene. In (I), X = -O- or -NR<1>-; R<1> = H, 1-8C alkyl, 3-8C cycloalkyl or 5-7C aryl; and R<2> = H or Me.
|
| 申请人 |
ZIMMER AG, 60388 FRANKFURT, DE;DEGUSSA AG, 60311 FRANKFURT, DE |
发明人 |
SCHWIND, HELMUT, DR., 63457 HANAU, DE;JANAS, WOLFGANG, 63826 GEISELBACH, DE;DORN, KLAUS, DR., 63457 HANAU, DE;KEMPF, PETER, 63517 RODENBACH, DE;WANDEL, DIETMAR, 63456 HANAU, DE;CZIOLLEK, JOACHIM, DR., 55122 MAINZ, DE;THIELE, ULRICH, DR., 63486 BRUCHKOEBEL, DE;KLEIN, ALEXANDER, DR., 55218 INGELHEIM, DE;SCHUMANN, HEINZ-DIETER, DR., 63477 MAINTAL, DE |
