Elastomers having a friction-reducing coating

US5766771A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Wilfried Merkel · Kappelrodeck, DE
• Wolfgang Leutsch · Bühl, DE
• Volker Gerhard · Riegelsberg, DE
• Frank Gross · Wilbraham, US
• Helmut Schmidt · Riegelsberg, DE

Key dates

• Filing date: Oct 28, 1996
• Grant date: Jun 16, 1998
• Expiry date: Oct 28, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31826
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A method of producing a layer which is friction-reducing on an elastomeric substrate includes (a) providing an elastomeric substrate; (b) forming a sol by hydrolysis and condensation of at least one silane having a formula : EQU R.sup.1 Si (OR').sub.3 (I) where R.sup.1 is one of a glycidyloxy-functional residue or a mercapto-functional residue and R' is a residue of a lower alkyl group having 1-4 carbon atoms; (c) coating the elastomeric substrate with the sol to form a coating; and (d) curing the coating to form a gel. The method is particularly suited for the coating of rubber surfaces, e.g., wiper blades.