FIELD: chemistry.
SUBSTANCE: present invention relates to a composition for use as an activator of anionic polymerisation of lactam comprising: a) N-acetylcaprolactam
and b) at least one hexamethylene diisocyanate (HDI)-based polyisocyanate and/or caprolactam-blocked polyisocyanate based on hexamethylene diisocyanate (HDI), selected from the group of HDI biuret, wherein the HDI biuret is a compound of formula (I):
Method for preparing such a composition is also described.
EFFECT: technical result is preparation of an activator composition for anionic polymerisation of lactam, having high reactivity and providing a moulding composition for manufacturing parts made of cast polyamide, which does not contain an additional solvent and, despite this, is in a liquid form and is easily dispensed.
4 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| NOVEL COMPOSITION FOR PRODUCING CAST POLYAMIDES | 2012 |
|
RU2596191C2 |
| CATALYSTS FOR PRODUCING MOULD POLYAMIDE, METHOD OF THEIR PRODUCTION AND THEIR APPLICATION | 2013 |
|
RU2640589C2 |
| MOULDED POLYAMIDES, METHOD OF THEIR PRODUCTION AND THEIR APPLICATION | 2013 |
|
RU2631324C2 |
| COMPOSITION FOR ANIONIC POLYMERISATION OF LACTAM | 2012 |
|
RU2608997C2 |
| METHODS OF PRODUCING CAST POLYAMIDES, STABLE DURING STORAGE OF MIXTURES OF ACTIVATORS AND CATALYSTS, AS WELL AS USE THEREOF TO PRODUCE CAST POLYAMIDES | 2011 |
|
RU2596880C2 |
| NEW COMPOSITIONS FOR MOLDED POLYAMIDES PRODUCING | 2012 |
|
RU2608725C2 |
| FLUOROURETHANES AS ADDITIVE IN PHOTOPOLYMER COMPOSITION | 2010 |
|
RU2570662C9 |
| METHOD OF OBTAINING POLYCAPROAMIDE | 0 |
|
SU1147722A1 |
| POLYURETHANE PREPOLYMER-BASED COMPOSITIONS BASED FOR PRODUCTION OF HOLOGRAPHIC MEDIA | 2009 |
|
RU2515549C9 |
| BIURET GROUP-CONTAINING POLYISOCYANATES OR BLOCKED BIURET GROUP-CONTAINING POLYISOCYANATES | 2005 |
|
RU2409598C2 |
