Compatible polyblends

Details Compatible polyblends Compatible polyblends

C - Chemistry, Metallurgy

08

L

400/5702

C08L 33/06 (2006.01)

Patent

CA 1327251

ABSTRACT The invention relates to compatible polymer blend of two disparate polymers comprising: A) 1-99 wt.% of a first polymer comprised of monomer units of formula (I): Image (I) wherein R1 is hydrogen or methyl, and R2 is ethyl or a hydrocarbon with 4-40 carbon atoms; and B) 99-1 wt% of a second polymer comprised of monomer units of formula (II): Image (II) wherein R3 is hydrogen or methyl, and R4 is ethyl or a hydrocarbon group with 4-40 carbon atoms; wherein the polymers are compatible within the range from room temperature to +200 C, and are compatible in a partial range thereof which extends at least 50°C; and wherein: a) the sum of A) + B) = 100 wt.%; b) R1 and R3 are different; and c) the groups R2 and R4 have similar van der Waals volumes. The polymer blends according to the invention may be used as bases for paints or varnishes. They may also be employed in grease and lubricant technology, e.g. for motor oils or hydraulic fluids with temperature-dependent viscosity.

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