| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to mixtures of low molecular and high molecular acrylic polymers. The invention discloses an acrylic polymer composition for moulding or extrusion, which contains a mixture in molten thermoplastic high molecular acrylic material (HMAM) and thermoplastic low molecular acrylic material (LMAM). An alkyl(alk)acrylate based (co)polymer accounts for at least 70 wt % of the HMAM and LMAM. The HMAM is characterised by average molecular weight (Mw) between 40000 Da and 1000000 Da, and the LMAM is characterised by Mw ranging from molecular weight of entwinement (Me) (expressed in thousand daltons) to 250000 Da.The invention also discloses a method of preparing an acrylic polymer composition, versions of using and processing the acrylic polymer composition, as well as products made from said composition. ^ EFFECT: obtaining acrylic polymer compositions with improved processability. ^ 36 cl, 4 dwg, 19 ex |
