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|1. (WO2018001805) POLYMER HAVING A SMALL AVERAGE PARTICLE SIZE.|
|Applicants:||SABIC GLOBAL TECHNOLOGIES B.V.
|Inventors:||AL-ZHRANI, Attyah, Saeed
|Title:||POLYMER HAVING A SMALL AVERAGE PARTICLE SIZE.|
The present invention relates to a polymer comprising: (a) polymeric units derived from vinyl chloride, vinyl acetate, styrene, methyl methacrylate, acrylonitrile, or combinations thereof; and 5 (b)polymeric units derived from one or more compounds according to formula I: wherein:. R1 is CH3 or H; 10. R2 is a moiety comprising 1-20 carbon atoms; and. n is an integer from 1-10; wherein the polymer has. an average particle size of 10 - 80 μm expressed as D50 determined in accordance with ISO 9276-2 (2014); and 15 x a porosity of ≤ 0.20 ml/g as determined as the quantity of di(2-ethylhexyl)phthalate in ml absorbed by 1 g of polymer upon subjecting the polymer at 23°C to vacuum, submerging in di(2-ethylhexyl)phthalate for 10 min, and subsequently centrifuging at 2000 rpm for 45 min. Such polymer may be used as viscosity reducing agent in PVC plastisol compositions. 20