公开(公告)号：GB1038752A

公开(公告)日：1966-08-10

申请号：GB659065

申请日：1965-02-16

Applicant: BASF AG

Inventor： MAAHS PAUL ,  MATTHIES HANS GEORG ,  WENGER FRITZ

IPC: C08K5/3412

Abstract: Polyamides are stabilized to heat and air by addition of a copper compound soluble in it and a halogen substituted lactam. Polyamides specified are derived from capro-, capryl-, oenautho- or laurolactam, the corresponding o -aminocarboxylic acid or a salt of a diamine, e.g. hexa-, octa- or deca-methylene diamine or bis-(4-aminophenyl) methane and a dicarboxylic acid, e.g. adipic, suberic, sebacic, undecane dicarboxylic or heptadecane dicarboxylic acid. Copper compounds specified are cupric acetate, sulphate and sulphinate and Cu complexes with NH3, amines and tartaric acid. Halogeno-lactams may be the mono- and di-N-and/or C-substituted C6-C14 lactams, e.g. the chloro-, bromo- or iodo derivatives of capro-, capryl-, oenautho- or laurolactams. Compounds used in the examples are a -bromo-, a -iodo- and a ,a - dichlorocuprolactam. 0.01-0.1% of each stabilizer may be added before or after polymerization together with pigments, dyes and/or photostabilizers, e.g. Mn salts. In one particular embodiment 1-10% of the copper compound and 1-10% of the halolactam may be added to a polyamide-forming mixture, which may then be stored and added to further polymer-forming mixture when required. The polymerization may be continuous or batchwise using an acid or neutral catalyst.

公开(公告)号：CA730753A

公开(公告)日：1966-03-22

申请号：CA730753D

Applicant: BASF AG

Inventor： MAAHS PAUL ,  MATTHIES HANS G ,  WENGER FRITZ