Abstract: A laminate has better handling properties achieved when it is attached to an adherend and which allows the solubility irregularity of the water-soluble material layer to be suppressed. The laminate includes: a 10 to 500 nm thick biodegradable material layer containing an aliphatic polyester and a water-soluble material layer disposed on at least one side of the biodegradable material layer, in which the water-soluble material layer is constituted of a 1 to 20 ?m thick first layer containing a water-soluble polymer (a), a 10 ?m to 10 mm thick fabric structure containing a water-soluble polymer (b), and a 1 to 20 ?m thick second layer containing a water-soluble polymer (c), which are layered in this order from the biodegradable material layer side.

Abstract: A polymer film has an average film thickness T0 along a straight line D passing through the center of gravity of a two-dimensional projection such that the area of the polymer film is maximized, satisfies equation (a), the average value L of distances 1 from the center of gravity to edges satisfies equation (b), the Young's modulus E satisfies equation (c), and the thickness deviation ? defined by equation (d) satisfies equation (e); and a dispersion liquid and an agglomerate using the same. (a) 10 nm?T0?1000 nm, (b) 0.1 ?m?L?500 ?m, (c) 0.01 GPa?E?4.3 GPa, (d) ?=1?T1/T2, (e) 0.346E×10?9?1.499<?<?0.073E×10?9+0.316.

Abstract: A laminate has better handling properties achieved when it is attached to an adherend and which allows the solubility irregularity of the water-soluble material layer to be suppressed. The laminate includes: a 10 to 500 nm thick biodegradable material layer containing an aliphatic polyester and a water-soluble material layer disposed on at least one side of the biodegradable material layer, in which the water-soluble material layer is constituted of a 1 to 20 ?m thick first layer containing a water-soluble polymer (a), a 10 ?m to 10 mm thick fabric structure containing a water-soluble polymer (b), and a 1 to 20 ?m thick second layer containing a water-soluble polymer (c), which are layered in this order from the biodegradable material layer side.

Abstract: A polymer film has an average film thickness T0 along a straight line D passing through the center of gravity of a two-dimensional projection such that the area of the polymer film is maximized, satisfies equation (a), the average value L of distances 1 from the center of gravity to edges satisfies equation (b), the Young's modulus E satisfies equation (c), and the thickness deviation ? defined by equation (d) satisfies equation (e); and a dispersion liquid and an agglomerate using the same. (a) 10 nm?T0?1000 nm, (b) 0.1 ?m?L?500 ?m, (c) 0.01 GPa?E?4.3 GPa, (d) ?=1?T1/T2, (e) 0.346E×10?9?1.499<?<?0.073E×10?9+0.316.