| 摘要 |
The invention relates to partially branched polymers having an average numerical molecular weight Mn ranging from 500 - 20000 daltons, made from ethylenically unsaturated monomers, comprising i) 80 99.9 wt % of monoethylenically unsaturated monomers A and ii) 0.1 - 20 wt % monomers B, comprising at least two non-conjugated, ethylenically unsaturated double bonds, wherein the proportional weight of monomers A and B relates to the total amount of ethylenically unsaturated polymer monomers making up said polymer.
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