METHOD OF TREATING THE SURFACE OF MOULDED POLYAMIDE ARTICLES, AND THE ARTICLES THUS OBTAINED

• Main Authors: BETZ, WALTER, MC KEE, GRAHAM, EDMUND, ZEINER, HARTMUT
• Format: Patent
• Language: English; French; German
• Published: 27.12.1995
• Edition: 5
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS BASED THEREON; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PRINTED CIRCUITS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PCT No. PCT/EP92/01312 Sec. 371 Date Dec. 16, 1993 Sec. 102(e) Date Dec. 16, 1993 PCT Filed Jun. 11, 1992 PCT Pub. No. WO93/00392 PCT Pub. Date Jan. 7, 1993.Moldings based on polyamides are surface treated with mixtures of at least 20% strength by weight aqueous hydrochloric acid with mono- or diethers of an aliphatic polyfunctional hydroxy compound in a mixing ratio of from 90:10 to 10:90% by volume.