EP 0284501 B1 19901122 - BINDER PITCH WITH MODIFIED FILTRABILITY AND ITS PREPARATION
Title (en)
BINDER PITCH WITH MODIFIED FILTRABILITY AND ITS PREPARATION
Publication
Application
Priority
FR 8703927 A 19870320
Abstract (en)
[origin: EP0284501A1] This binder pitch, which has a KS softening point of between 60 DEG C and 80 DEG C and a content of quinoline-insoluble substances lower than or equal to 7% by weight, is characterised in that its filterability index is higher than or equal to 4.5. To prepare it, a tar or a pitch which has a KS softening point of not more than 60 DEG C and a content of quinoline-insoluble substances lower than or equal to 7% by weight is subjected to a heat treatment capable of removing a substantial proportion of its constituents with a molecular mass lower than 1200.
IPC 1-7
IPC 8 full level
C10C 3/10 (2006.01); C10C 1/19 (2006.01); C10C 3/00 (2006.01); C10C 3/02 (2006.01)
CPC (source: EP US)
C10C 1/19 (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 0284501 A1 19880928; EP 0284501 B1 19901122; AT E58549 T1 19901215; BR 8801342 A 19881101; CA 1304198 C 19920630; DE 3861103 D1 19910103; ES 2018618 B3 19910416; FR 2612525 A1 19880923; FR 2612525 B1 19890519; GR 3001462 T3 19921008; JP S6414296 A 19890118; US 4997542 A 19910305
DOCDB simple family (application)
EP 88400643 A 19880318; AT 88400643 T 19880318; BR 8801342 A 19880321; CA 561878 A 19880318; DE 3861103 T 19880318; ES 88400643 T 19880318; FR 8703927 A 19870320; GR 910400175 T 19910211; JP 6802188 A 19880322; US 17033288 A 19880318