Patent attributes
A biodegradable resin composition comprising polylactic acid and nanosheeted layered titanic acid characterized in that the nonasheeted layered titanic acid is nanosheeted layered titanic acid obtained by a preparing process comprising the steps of:(1) treating layered titanate represented by the general formula:AxMy□zTi2−(y+z)O4 (1)[wherein A and M represent a different monovalent to trivalent metal, □ represents a part defective in Ti, x is a positive real number satisfying 0<x<1.0, and y and z are 0 or a positive real number satisfying 0<y+z<1.0, respectively]with an acid or warm water to replace an A ion and/or a M ion with hydrogen and/or a hydronium ion, and(2) reacting the resulting compound with a basic compound having interlayer swelling activity thereon, to swell or peel between layers.
