Xylylenediamine composition and method for producing polyamide resin
US9951182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2014 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Oct 29, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided are [1] a xylylenediamine composition containing xylylenediamine and a 5-membered or 6-membered heterocyclic compound (A) having at least one nitrogen-containing substituent and having two nitrogen atoms as atoms constituting a ring, wherein the content of the heterocyclic compound (A) is 0.001 to 0.02 parts by mass based on 100 parts by mass of the xylylenediamine; and [2] a method for producing a polyamide resin including the steps of introducing a 5-membered or 6-membered heterocyclic compound (A) having at least one nitrogen-containing substituent and having two nitrogen atoms as atoms constituting a ring, a diamine including xylylenediamine (but excluding a diamine corresponding to the above-mentioned heterocyclic compound (A)), and a dicarboxylic acid into a reaction system and performing a polycondensation reaction, wherein the amount of the heterocyclic compound (A) to be introduced is 0.001 to 0.02 parts by mass based on 100 parts by mass of xylylenediamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.