FIELD: chemistry; valve production.
SUBSTANCE: invention relates to resin compositions for pipes made from rigid impact-resistant polyvinyl chloride (UPVC), having excellent strength and resistance to hydrostatic pressure, which contains polyvinyl chloride (PVC) with K value to from 72 to 84, from 1 pts.wt to 3 pts.wt tin stabiliser and from 1 pts.wt to 10 pts.wt lubricant based on methacrylate per 100 pts.wt PVC resin with K value from 72 to 84.
EFFECT: invention also relates to a pipe made from rigid UPVC, having excellent strength and resistance to hydrostatic pressure, made by extrusion of said resin composition.
7 cl, 2 tbl
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