The present invention relates to a composition comprising a polymeric network having at least one unit of formula (I), (II), and/or (III); (I) (II) (III) wherein said composition is obtained by contacting at least one compound A comprising at least two functions selected from the group of function of formula X—C(═O)—CHR
1
—C(═O)—R
2
, —C(═O)—C—R
2
; or —C(═O)—CR
1
═CR
2
—NR
4
R
5
; wherein at least 25% by weight of compounds A have a functionality ≦5, with % by weight relative to the total weight of compounds A; with at least one compound B comprising at least one NH
2
, or NH
3
+
groups; wherein X, R
1
, R
2
, R
3
, R
4
, R
5
, L
1
and L
2
have the same meaning as that defined in the claims. The present invention also relates to a compound comprising at least two units and at most 5 units of formula (I), (II), and/or (III); wherein R
1
, R
2
, R
3
, X, L
1
and L
2
have the same meaning as that defined in the claims. The present invention also relates to processes for preparing said composition and said compounds, to material, articles, and polymers comprising or using said compositions and compounds, and the use thereof.
Die Erfindung betrifft ein Verfahren zur Herstellung von Polyindanen und ist dadurch gekennzeichnet, daß 1,4-Bis-(isopropyl)benzole der Formel
worin X OH oder Cl bedeuten, in inerten Lösungsmitteln in anwesenheit von Protonensäuren bzw. Friedel-Crafts-Katalysatoren bei Temperaturen von 0 bis 150°C umgesetzt werden. Die bisher bekannten Verfahren haben den Nachteil, daß sie von dem schwer zugänglichen Diisopropenylbenzol ausgehen.
Use of oligomers of alkenyl groups-substituted aromatics as co-agents
申请人:Akzo Nobel N.V.
公开号:EP0374999A2
公开(公告)日:1990-06-27
The present invention relates to a process for modifying or crosslinking polymers by the use of novel coagents in the reaction of polymers with organic peroxides. The novel coagents comprises oligomers of dialkenyl substituted aromatic compounds, preferably oligodiisopropenylbenzene.
BIS-PROPYLCATECHOL, METHOD FOR PRODUCING BIS-PROPYLCATECHOL, RESIN COMPOSITION CONTAINING BIS-PROPYLCATECHOL, RESIN CURED PRODUCT OBTAINED BY CURING RESIN COMPOSITION CONTAINING BIS-PROPYLCATECHOL, EPOXIDIZED BIS-PROPYLCATECHOL, METHOD FOR PRODUCING EPOXIDIZED BIS-PROPYLCATECHOL, CURABLE RESIN COMPOSITION CONTAINING EPOXIDIZED BIS-PROPYLCATECHOL, AND RESIN CURED PRODUCT OBTAINED BY CURING CURABLE RESIN COMPOSITION CONTAINING EPOXIDIZED BIS-PROPYLCATECHOL
申请人:SEKISUI CHEMICAL CO., LTD.
公开号:EP3778540A1
公开(公告)日:2021-02-17
A bis-propylcatechol having a structure represented by formula (1):
wherein R1 is a divalent aliphatic hydrocarbon group having two or more carbon atoms or a divalent aromatic hydrocarbon group.