| 摘要 |
PROBLEM TO BE SOLVED: To obtain a nonwoven fabric excellent in heat-resistant shape stability, mechanical strength and elongation, and suitable as an asphalt roofing sheet. SOLUTION: This water-based resin composition for nonwoven fabric comprises (A) a polyester resin >=0 deg.C in glass transition temperature and >=0.1 dl/g in reduced viscosity, with aromatic dicarboxylic acid(s) accounting for >=60 mol.% of the total acid component, and (B) at least one kind selected from polyvinyl alcohol, starch and water-soluble modified cellulose, and, if needed, (C) a curing agent reactive with the component A and/or component B, wherein the proportions for the components A, B and C are such as to be shown in the formulas 1 and 2: formula 1: A/B=(20:80) to (80:20) (weight ratio on a solid basis) formula 2: (A+B)/C=(100:0) to (70:30) (ibid.). |
