Agricultural film of thermoplastic resin and hydrotalcite...

C - Chemistry – Metallurgy – 08 – K

Patent

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31/156, 47/6, 40

C08K 3/00 (2006.01) A01G 9/14 (2006.01) A01G 13/02 (2006.01) C08K 3/26 (2006.01) C08K 3/34 (2006.01)

Patent

CA 1255092

Abstract of the Disclosure An agricultural film structure composed of a mixture of a thermoplastic resin and an infrared radiation-absorbing powdery inorganic compound, said mixture comprising (a) 100 parts by weight of a thermoplastic resin and (b) about 1 to about 20 parts by weight of a hydrotalcite powder, as the infrared radiation absorbing powdery inorganic compound, having an average secondary particle diameter of not more than about 5 microns and a BET specific surface area of not more than about 30 m2/g and being represented by the following formula (1) M??xAlx(OH)2(An-)x/n mH2O ... (1) wherein M2+ represents a divalent metal ion selected from the group consisting of Mg, Ca and Zn ions, An- represents an anion having a valence of n, and x and m satisfy the following conditions 0<x<0.5 0?m?2.

467096

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