EP 0286499 B1 19900822 - PITCH FOR BINDING ELECTRODES AND PROCESS FOR PREPARING SAID PITCH
Title (en)
PITCH FOR BINDING ELECTRODES AND PROCESS FOR PREPARING SAID PITCH
Publication
Application
Priority
FR 8704054 A 19870324
Abstract (en)
[origin: WO8807571A1] The disclosed bonding pitch for electrodes, having a softening point C.I.A. comprised between 80C and 150C, a concentration of quinoline-insoluble substances higher or equal to 4% by weight, a concentration of $g(a)+$g(b) resins comprised between 28 and 40% by weight, and a fixed carbon content determined according to the standard ISO 6998, at least equal to 51% by weight, is characterized by a vitreous transition domain $g(D)Tg, determined by differential calorimetric analysis, at the most equal to 50C. In order to produce such a pitch, a pitch having a content of quinoline-insoluble substances lower than 4% by weight is subjected to a treatment by waves having a frequency between 0.9 and 300 GHz. Such treatment makes possible the increase of the carbon content of the pitch while preserving a good affinity to the coke and significantly decreasing its vitreous transitional domain.
IPC 1-7
IPC 8 full level
C10C 3/00 (2006.01); C10C 1/00 (2006.01); C10C 3/02 (2006.01); C25B 11/00 (2006.01); H01M 4/00 (2006.01)
CPC (source: EP US)
C10C 1/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0286499 A1 19881012; EP 0286499 B1 19900822; AT E55776 T1 19900915; AU 1542188 A 19881102; AU 607760 B2 19910314; BR 8807335 A 19900313; CA 1304199 C 19920630; DE 3860473 D1 19900927; ES 2016675 B3 19901116; FR 2612935 A1 19880930; FR 2612935 B1 19890609; GR 3000922 T3 19911210; JP H02502650 A 19900823; NZ 223941 A 19891027; US 5120424 A 19920609; WO 8807571 A1 19881006; ZA 881882 B 19900131
DOCDB simple family (application)
EP 88400709 A 19880323; AT 88400709 T 19880323; AU 1542188 A 19880321; BR 8807335 A 19880321; CA 562237 A 19880323; DE 3860473 T 19880323; ES 88400709 T 19880323; FR 8704054 A 19870324; FR 8800145 W 19880321; GR 900400752 T 19901011; JP 50291488 A 19880321; NZ 22394188 A 19880318; US 64314391 A 19910116; ZA 881882 A 19880316