HYDROPHILIC PLASMA COATING

• Main Authors: GÖRNE, MARTIN, KORDICK, THOMAS
• Format: Patent
• Language: English; Serbian
• Published: 31.10.2014
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

Proces hidrofilizovanja površina polimernih radnih predmeta, proces koji se sastoji od koraka(a) pred-tretiranja površina radnog predmeta visokofrekventnom gasnom plazmom koja je nastala na bazi inertnog gasa, za čišćenje i aktiviranje površina radnog predmeta(b) pred-oblaganja pred-obrađenih površina radnog predmeta poliakrilnom kiselinom uspomoć visokofrekventne gasne plazme koja je nastala od smeše gasova, pri čemu se ta smeša sastoji od inertnog gasa i i prvog gasa koji se sastoji od biokompatibilne polimerizujuće karboksilne grupe koja sadrži monomere, i koji se karakteriše time da se sastoji od neposredno predstojećih koraka za(cb) smanjivanje dovoda inertnog gasa, snabdevajući drugi gas u većoj meri, koji sadrži monomere akrilne kiseline i(c) dodatnog oblaganja pred-obloženih površina radnog predmeta koristeći drugi gas.Prijava sadrži još 14 patentnih zahteva. Polymer workpiece comprises a hydrophilic surface coated with poly(meth)acrylic acid, where a wetting angle of water on the workpiece surface coated with poly(meth)acrylic acid and poly(acrylic acid) (PAA), has a value of 2 to less than 10[deg] . An independent claim is also included for hydrophilizing surfaces of polymeric workpieces, comprising (a) pre-treating the workpiece surfaces for cleaning and activating, (b) pre-coating the pre-treated workpiece surfaces, and (c) subsequent coating the pre-coated workpiece surfaces. The step (a) takes place in a high frequency gas plasma formed on the basis of an inert gas, the step (b) takes place with polyacrylic acid using a high frequency gas plasma generated from a gas mixture, which comprises an inert gas and a first gas comprising biocompatible- and polymerizable carboxyl groups containing monomers, and the step (c) takes place using a second gas containing acrylic monomers.