Hyperbranched amphiphilic polymeric additives and polymer...

C - Chemistry – Metallurgy – 08 – G

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C08G 83/00 (2006.01) C08G 81/00 (2006.01) C08L 101/00 (2006.01)

Patent

CA 2398575

The surface energy of polymeric substrates is increased by the application or incorporation of novel amphiphilic block copolymers. The block copolymer additives comprise a linear hydrophilic polymer or oligomer and a random hyperbranched polymer or oligomer and is completely or partially terminated with lipophilic end groups. The polymeric articles or construction which benefit from the application or incorporation of the amphiphilic block copolymers in the areas of anti-fog, dissipation of static electricity, paintability, dyeability, printability, wicking of moisture, adhesion and polymer compatibility include carpet fibers, composite fibers, agricultural films, nonwoven coverstock, exterior automotive bumper fascia, packaging, hygienic products, incompatible polymer blends, laminated articles and eyewear.

Selon l'invention, la tension superficielle du substrats polymères est augmentée par l'application ou l'incorporation de nouveaux copolymères bloc amphiphiles. Ces additifs copolymères bloc comprennent un polymère ou un oligomère hydrophile linéaire et un polymère ou un oligomère hyperramifié et sont complètement ou partiellement terminés par des groupes d'extrémité lipophiles. Parmi les articles ou les constructions polymères qui bénéficient de l'application ou de l'incorporation des copolymères bloc amphiphiles dans les domaines des systèmes anti-buée, de la dissipation de l'électricité statique, de la peignabilité, de l'acceptation des teintures, de la capacité d'impression, de l'imprégnation d'humidité, de l'adhésion et de la compatibilité des polymères, on compte les fibres de tapis, les fibres composites, les films utilisés en agriculture, le papier couverture non tissé, les carénages frontaux extérieurs d'automobile, les emballages, les produits hygiéniques, les mélanges polymères incompatibles, les articles laminés et les lunettes.

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