Assertion: byproduct lignin | /r/MadeOf | plastic
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Source sentences:
text: The tensile strengths of a series of new 85% industrial byproduct lignin containing plastics fabricated by blending with 12.6% polyvinyl acetate, 1.6% diethyleneglycol dibenzoate and 0.8% indene have been examined in relation to the molecular weights of the kraft lignin species upon which these polymeric materials are based.