Patent · US Expired

Filler paste for use in basecoats for coating polyolfin substrates, basecoats, and process for the direct coating or polyolefin substrates

US5709909A · kind A · utility

31Cited by

4References

6Claims

0Family size

Assignee

Basf Lacke & Farben Aktiengesellschaft · DE

Inventors

Frank Albert Leibfarth · Carrboro, US
Hans-Josef Oslowski · Munster, DE
Doris Maria Bohm · Munster, DE
Andreas Göbel · Eiterfeld, DE

Key dates

Filing date	Oct 3, 1996
Grant date	Jan 20, 1998
Priority date	—
Expiry date	Oct 3, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31917
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Disclosed is a filler paste comprising polyurethane resin, chlorinated polyolefin, filler and/or extender, and organic solvents. The filler paste may also include physically drying binders, pigments, and/or rheological additives. Also disclosed is a basecoat containing the filler paste. The basecoat containing the filler paste may be applied directly to polyolefin substrates. After a flash-off period, a basecoat that does not contain the filler paste may be applied on top of the first basecoat layer. After a flash-off period for the second basecoat layer, a clearcoat may be applied and subsequently the applied layers may be cured together, with heating.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.