Über lineare oligamide der adipinsäure mit hexamethylendiamin
摘要:
AbstractDie beiden Komponenten des Nylons, Hexamethylendiamin und Adipinsäure, Können drei Reihen linearer polymerhomologer Verbindungen bilden:
Diamine (Hexamethylendiamin endständig)Dicarbonsäuren (Adipinsäure endständig)Aminosäuren (Hexamethylendiamin und Adipinsäure endständig)
Von den Diaminen und Dicarbonsäuren wurden jeweils die ersten drei Vertreter dargestellt; von den Aminosäuren das Mono‐, Di‐ und Tetramere.Die röntgenographische Untersuchung der Oligamide ergab, daß schon die kleinsten aus Adipinsäure und Hexamethylendiamin bestehenden Bruchstücke des Nylons dieselben paratropen Röntgenreflexe zeigen wie das Polymere. Aufnahmen in der Kratky‐Kammer lieferten Langperiodenreflexe, welche der periodischen Aufeinanderfolge der Moleküle in Richtung ihrer Längsachse entsprechen.
[EN] REACTIVE PHOSPOROUS CONTANING FLAME RETARDANT AND INTRINSICALLY FLAME RETARDANT POLYMER OBTAINABLE BY POLYCONDENSATION WITH IT<br/>[FR] AGENT IGNIFUGE CONTENANT DU PHOSPHORE RÉACTIF ET POLYMÈRE IGNIFUGE INTRINSÈQUE POUVANT ÊTRE OBTENU PAR POLYCONDENSATION AVEC CELUI-CI
申请人:POLYTECHNYL S A S
公开号:WO2021123096A1
公开(公告)日:2021-06-24
The invention relates to a phosphorous containing monomer and a process thereof. Furthermore, the invention relates to a phosphorous containing polymer comprising said monomer and a production process thereof. The phosphorous containing polymer of the invention is useful as flame-retardant polymer. Additionally, the invention relates to a thermoplastic polymer composition comprising said phosphorous containing polymer and optionally a further thermoplastic polymer. The thermoplastic polymer composition can be used for the production of molded articles or yarns having excellent flame-retardant properties in order to ensure adequate fire protection.
OXYGEN SCAVENGING MOLECULES, ARTICLES CONTAINING SAME, AND METHODS OF THEIR USE
申请人:Deshpande Girish Nilkanth
公开号:US20110251395A1
公开(公告)日:2011-10-13
The invention relates to compounds of the structure of formula I and II:
where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol
represents a single or a double bond; and R
1
, R
2
and R
3
are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.
The invention relates to a method for producing hexamethylenediamine, wherein a) a muconic acid starting material is provided, which is selected from among muconic acid, esters of muconic acid, lactones of muconic acid, and mixtures thereof, b) the muconic acid starting material is subjected to a reaction with hydrogen in the presence of at least one hydrogenation catalyst in order to form 1,6-hexanediol, and c) the 1,6-hexanediol obtained in step b) is subjected to amination in the presence of an amination catalyst in order to obtain hexamethylenediamine. The invention further relates to hexamethylenediamine which can be produced by means of said method.
METHOD OF PRODUCING ADIPIC ACID OR AT LEAST A RESULTANT PRODUCT THEREOF
申请人:BASF SE
公开号:US20160311746A1
公开(公告)日:2016-10-27
The present invention relates to a process for preparing adipic acid or at least one conversion product thereof, in which muconic acid is hydrogenated with hydrogen in the presence of at least one transition metal catalyst C and of an aqueous liquid A in a reaction zone, wherein the muconic acid is at least partly insoluble in the liquid A under the hydrogenation conditions.
Semifluorinated acid halides and fluorinated polymers produced therefrom
申请人:Cornell Research Foundation, Inc.
公开号:US06114467A1
公开(公告)日:2000-09-05
Compounds having the formula F(CF.sub.2).sub.q --(CH.sub.2).sub.p-1 --COX' wherein q ranges from 6-15, p ranges from 3-15 and X' is halogen are useful as reactants for hydroxylated block copolymers or polyamines to produce fluorinated polymers.