Amphiphilic block copolymer-toughened epoxy vinyl ester and...

C - Chemistry – Metallurgy – 08 – L

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C08L 63/10 (2006.01) C08K 5/00 (2006.01) C08L 51/08 (2006.01) C08L 67/06 (2006.01) C08L 71/02 (2006.01)

Patent

CA 2582357

A curable ester resin composition including (a) an ester resin; (b) at least one copolymerizable reactive monomer; and (c) an amphiphilic block copolymer containing at least one ester resin miscible block segment and at least one ester resin immiscible block segment; such that when the ester resin composition is cured, the toughness of the resulting cured ester resin composition is increased. The amphiphilic block copolymer is preferably an all polyether block copolymer such as a PEO-PBO diblock copolymer or a PEO-PBO-PEO triblock copolymer.

L~invention concerne une composition de résine d~ester vulcanisable comprenant : (a) une résine d~ester ; (b) au moins un monomère réactif copolymérisable ; et (c) un copolymère bloc amphiphile contenant au moins un segment bloc miscible à la résine d~ester et au moins un segment bloc immiscible à la résine d~ester pour que suite à la cuisson de la composition de résine d~ester, la résistance de la composition de résine d~ester vulcanisée résultante soit augmentée. Le copolymère bloc amphiphile est de préférence un copolymère bloc entièrement en polyéther comme un copolymère dibloc PEO-PBO ou un copolymère tribloc PEO-PBO-PEO

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