Thermoformable conductive laminate and process

Details Thermoformable conductive laminate and process Thermoformable conductive laminate and process

1995-06-07

1997-11-11

Sweet, Mark D.

Stock material or miscellaneous articles

Composite

Of polyamidoester

4284233, 4284235, 4284237, 4284244, 4284246, 4284248, 428480, 428483, 428522, 428688, 428934, B32B 2700

Patent

active

056861869

ABSTRACT:
A process for making a thermoformable conductive plastic laminate for use in making plastic parts adapted for electrostatic spray painting of a uniform high quality paint finish includes forming a matte release coated casting sheet, casting an electrically conductive polymer in thin film form on the casting sheet, drying to form a conductive primer coat, and transfer-laminating the conductive coating to a thin, thermoformable plastic face sheet. The matte release coat has a fine particulate filler that transfers a micro-toughened matte surface to the conductive primer coat. The conductive primer includes a polyester resin containing a fine particulate conductive material such as carbon black and, preferably, an anti-blocking agent such as fumed silica. The primer coated face sheet can be thermoformed and bonded to a underlying plastic substrate panel. The conductive primer has sufficient elongation and maintains uniform electrical surface conductivity and film thickness throughout the transfer-laminating, thermoforming and substrate panel-cladding process. The uniform surface resistivity of the conductive primer film is sufficient to permit electrostatic spray painting of the finished contoured panel and in one embodiment produces a Class "A" quality exterior automotive paint finish on the resulting panel.

REFERENCES:
patent: 3963647 (1976-06-01), Straub
patent: 4196064 (1980-04-01), Harms et al.
patent: 4349601 (1982-09-01), Brueggemann et al.
patent: 4520062 (1985-05-01), Ungar et al.
patent: 4587160 (1986-05-01), Williams et al.
patent: 4686108 (1987-08-01), Nason et al.
patent: 4824506 (1989-04-01), Hoerner et al.
patent: 4844955 (1989-07-01), Graefe et al.
patent: 5000809 (1991-03-01), Adesko et al.
patent: 5194328 (1993-03-01), Suzuki et al.
patent: 5203941 (1993-04-01), Spain et al.
patent: 5484838 (1996-01-01), Helms et al.

Affiliated with

Also associated with

Rating

Thermoformable conductive laminate and process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermoformable conductive laminate and process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermoformable conductive laminate and process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1227337