Polymer blend

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 53/00 (2006.01) C08L 33/06 (2006.01) C08L 101/00 (2006.01)

Patent

CA 2216195

A polymer blend comprising (A) an acrylic resin; (B) a block copolymer consisting essentially of a polymer block of a polymerized aromatic vinyl compound and/or a polymer block of a polymerized methacrylate monoester and a polyolefin polymer block; and (C) a polymer miscible with the acrylic resin (A) and immiscible with the block copolymer (B), wherein the absolute value ( ¦ ~ AC-~ B¦) of the difference between the refractive index (~ AC) of the blend of the acrylic resin (A) and the polymer (C) and the refractive index (~ B) of the block copolymer (B) is 0.01 or less. This polymer block has excellent transparency, softness and other properties.

Mélange polymérique renfermant : A) une résine acrylique; B) un copolymère séquencé constitué essentiellement d'une séquence aromatique vinylique et (ou) d'une séquence de monoester méthacrylate et d'une séquence polyoléfinique; C) un polymère miscible avec la résine acrylique (A) et non miscible avec le copolymère séquencé (B); la valeur absolue ( ¦ ~ AC-~ B¦) de la différence entre l'indice de réfraction (~ AC) du mélange de la résine acrylique (A) et du polymère (C) et l'indice de réfraction (~ B) du copolymère séquencé (B) est de 0,01 ou moins. Ce polymère a d'excellentes propriétés de transparence, de souplesse, etc.

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