Process for hydrophilicizing the surface of polymeric substrates with a macroinitiator as primer

US6096369A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

• Christine Anders · Haltern, DE
• Robert Hans-Jörg Jacobasch · Dresden, DE
• by Margareta Ute Dagmar Jacobasch · Dresden, DE
• by Kathrin Gotz nee Jacobasch, heir · Berlin, DE
• by Lutz Jacobasch · Dresden, DE
• by Susanne Jacobasch · Berlin, DE
• Volker Steinert · Dresden, DE
• Stefan Zschoche · Dresden, DE

Key dates

• Filing date: Jun 29, 1998
• Grant date: Aug 1, 2000
• Expiry date: Jun 29, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41M5/0064
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a process for making the surface of polymeric substrates hydrophilic, which includes coating the surface of a polymeric substrate with a solution of a macroinitiator, wherein the macroinitiator includes a polymer framework and side chains attached to the polymer framework, and wherein at least one of the side chains includes at least one free-radical-forming group. Optionally, a hydrophilic vinyl monomer or monomers may then be free-radical polymerized or graft polymerized onto the macroinitiator-coated substrate. A crosslinking vinyl monomer may optionally be used together with the macroinitiator or the hydrophilic vinyl monomer. The invention also relates to polymeric substrates having hydrophilic surfaces obtained by the process, and articles that include the hydrophilic polymeric substrates.