EP 0328711 A1 19890823 - Conductive primer composition.
Title (en)
Conductive primer composition.
Title (de)
Elektrisch leitende Grundierung.
Title (fr)
Couche primaire conductrice.
Publication
Application
Priority
- EP 88102427 A 19880219
- CA 559228 A 19880218
- US 90156886 A 19860829
Abstract (en)
A primer composition containing solvents, a film forming binder and pigments of an electrically conductive carbon black pigment and the binder contains about (1) 40-70% by weight of a polyester copolymer having linear segment with hydroxyl groups and a hydroxyl number of about 15 - 300 and a number average molecular weight of about 300 - 3,000 and branched chains having hydroxyl groups and having a hydroxyl number of about 175 - 300 and a number average molecular weight of about 500 - 2,000 and are attached to linear segment by esterification of the hydroxyl groups with a diacid or a anhydride; and (2) 30 - 60 % by weight of an alkylated melamine formaldehyde crosslinking agent; wherein the composition forms a hard flexible coating on a substrate whereby the coated substrate can be bent 180 DEG around a 1/2 inch mandrel with the coating facing outward and the coating exhibits substantially no breaks or cracks when tested at -18 DEG C and the coating has a surface conductivity of at least 160 Randsburg units.
IPC 1-7
IPC 8 full level
H01B 1/24 (2006.01)
CPC (source: EP)
H01B 1/24 (2013.01)
Citation (search report)
- [YD] EP 0112250 A2 19840627 - DU PONT [US]
- [Y] EP 0209394 A2 19870121 - ACHESON IND INC [US]
Designated contracting state (EPC)
AT BE DE ES FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 88102427 A 19880219; CA 559228 A 19880218