EP 0993238 A1 20000412 - Electrical insulation and cooling material for a high-voltage supply device

Title (en)

Electrical insulation and cooling material for a high-voltage supply device

Title (de)

Elektroisolier- und Kühlmaterial für eine Hochspannungsversorgungsvorrichtung

Title (fr)

Matériau d'isolation électrique et de refroidissement pour un dispositif d'alimentation haute tension

Publication

EP 0993238 A1 20000412 (EN)

Application

EP 99307849 A 19991005

Priority

FR 9812443 A 19981005

Abstract (en)

Insulation and cooling material for high-voltage supply devices is a composite of at least one thermoplastic polymer and of at least one particulate ceramic filler so that the matieral has a thermal conductivity of at least 0.9 W/M.K. The thermoplastic polymer may be polypropylenes, poly (etherimides), poly(phenylsulphides) and poly(etherimide)/poly(phenyl-sulphide) mixtures. The particulate ceramic fillers may be alumina, aluminum nitride, boron nitride, barium suplhate and beryllium oxide and mixtures thereof. The high-voltage supply device is intended for X-ray tubes. <IMAGE>

IPC 1-7

H05G 1/04; H01B 3/42

IPC 8 full level

H05G 1/02 (2006.01); H01B 3/00 (2006.01); H01B 3/12 (2006.01); H01B 3/42 (2006.01); H01B 3/44 (2006.01); H05G 1/04 (2006.01)

CPC (source: EP KR)

H01B 3/12 (2013.01 - KR); H01B 3/427 (2013.01 - EP); H01B 3/441 (2013.01 - EP); H01B 3/445 (2013.01 - EP); H05G 1/025 (2013.01 - EP); H05G 1/04 (2013.01 - EP)

Citation (search report)

[XAY] EP 0421193 A1 19910410 - SIEMENS AG [DE], et al
[Y] FR 2700657 A1 19940722 - GEN ELECTRIC CGR [FR]
[PY] EP 0909012 A1 19990414 - GE MEDICAL SYST SA [FR]
[A] US 3700597 A 19721024 - KASTENBEIN ERNEST L, et al
[A] US 5298301 A 19940329 - MIDGLEY JOHN [US], et al
[A] FR 2693306 A1 19940107 - TECHNOMED INT SA [FR]
[A] PATENT ABSTRACTS OF JAPAN vol. 007, no. 219 (C - 188) 29 September 1983 (1983-09-29)
[PA] PATENT ABSTRACTS OF JAPAN vol. 099, no. 004 30 April 1999 (1999-04-30)

Designated contracting state (EPC)

DE IT NL

DOCDB simple family (publication)

EP 0993238 A1 20000412; CN 1218007 C 20050907; CN 1256300 A 20000614; FR 2784261 A1 20000407; FR 2784261 B1 20010727; IL 131930 A0 20010319; JP 2000123635 A 20000428; KR 20000028811 A 20000525

DOCDB simple family (application)

EP 99307849 A 19991005; CN 99120580 A 19990930; FR 9812443 A 19981005; IL 13193099 A 19990916; JP 28398499 A 19991005; KR 19990042639 A 19991004