Heat-resistant paper container and process for preparation thereof

摘要

Disclosed is a heat-resistant paper container which comprises a bottomed seamless press-molded body comprising a laminate of a paper substrate having an elongation of at least 1.5% in the longitudinal direction and an elongation of at least 4.5% in the lateral direction and a coating layer of a hiding pigment formed on both the surfaces of the paper substrate, wherein the amount coated of the hiding pigment is 1 to 50 g/m2, the binder in the coating layer is a thermosetting resin binder and the binder is present in the coating layer at a weight ratio RP satisfying the following conditions: RP=kxOAxdR (1) wherein OA stands for the oil absorption (ml/100 g) of the hiding pigment, dA stands for the density (g/ml) of the binder, and k is a number of from 0.005 to 0.2.