Synthesis of improved binders and modified tacticity

Details Synthesis of improved binders and modified tacticity Synthesis of improved binders and modified tacticity

C - Chemistry, Metallurgy

09

D

C09D 133/04 (2006.01) C08F 2/02 (2006.01) C08F 20/10 (2006.01)

Patent

CA 2719850

The invention relates to a process for preparing polymers for coating applications by polymerizing esters of acrylic acid or of methacrylic acid or vinyl aromatics or other free--radically polymerizable vinyl compounds or monomer mixtures composed predominantly of such monomers by means of a continuous polymerization process. In particular, the invention relates to a solvent-free preparation process for polymers, through which the binder can be prepared for coating applications with superior processing properties, very good thermal stability, improved pigment wetting and a higher gloss.

L'invention porte sur un procédé de préparation de polymères pour applications de type peinture et vernis, par polymérisation d'esters de l'acide acrylique ou de l'acide méthacrylique, ou de composés vinyles aromatiques, ou d'autres composés vinyliques pouvant être polymérisés par polymérisation radicalaire, ou de mélanges de monomères constitués essentiellement de ces monomères, à l'aide d'un procédé continu de polymérisation. L'invention porte en particulier sur un procédé de préparation sans solvant de polymère, à l'aide duquel il est possible de préparer des liants pour applications de type peinture et vernis présentant des propriétés améliorées de mise en oevre, une très bonne thermostabilité, un meilleur mouillage des pigments, et un brillant plus élevé.

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