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    • 4. 发明授权
    • Formation of hydrophilic polysaccharide coatings on hydrophobic substrates
    • 在疏水性底物上形成亲水性多糖涂层
    • US07052776B2
    • 2006-05-30
    • US10849977
    • 2004-05-20
    • George F. FantaFrederick C. Felker
    • George F. FantaFrederick C. Felker
    • B32B33/00
    • C08J7/047B05D5/04B05D2201/02C08J2403/00Y10T428/31725Y10T428/3175Y10T428/31786Y10T428/31855Y10T428/3188Y10T428/31971
    • Articles produced from hydrophobic polymers (e.g., polyethylene) are surface-coated with thin films of starch in order to render the surfaces hydrophilic. The thin coatings form on the surfaces of plastic objects when the objects are placed in contact with hot, aqueous solutions of starch. These starch coatings are adherent to the hydrophobic plastic surfaces under both wet and dry conditions, and they permit the surfaces to be uniformly wet with water. The coatings may be rendered even more adherent when wet by graft polymerizing the starch with a synthetic monomer. Resultant products have the potential for improved biocompatibility, improved compatibility with hydrophilic reagents, reduced build-up of electrostatic charge, reduced blocking, reduced friction, improved absorption of water-based dyes, and improved adhesion properties. The starch coatings are non-toxic, inexpensive and biodegradable.
    • 由疏水性聚合物(例如聚乙烯)制成的制品用淀粉薄膜表面涂覆,以使表面亲水。 当物体与热的淀粉水溶液接触时,塑料物体的表面上形成薄的涂层。 这些淀粉涂层在湿和干燥条件下都粘附到疏水性塑料表面,并且它们允许表面均匀地用水润湿。 当通过用合成单体接枝聚合淀粉而使其湿润时,涂层可能变得更加粘附。 所得产品具有改进的生物相容性,改善与亲水试剂的相容性,减少静电荷积聚,减少阻塞,减少摩擦,改善水性染料吸收性以及改善粘合性能的潜力。 淀粉涂层无毒,便宜且可生物降解。