摘要:
The present invention relates to colored polymer moulding materials which give rise to colored markings on a dark background with a very high contrast ratio on the absorption of laser energy.
摘要:
The invention relates to thermally stable and UV-stable polyamide molding compounds containing colloidal copper formed in situ and to a process for their production.
摘要:
The invention relates to readily processible polyamide molding compounds which have very good mechanical and electrical properties as well as high surface quality and are based on polyamide, magnesium hydroxide and polyhydroxy compounds of the Novolak type.
摘要:
The present invention relates to easily processable polyamide moulding materials with very good mechanical and electrical properties based on calcium magnesium carbonate hydrate as the flame-retardant additive.
摘要:
This invention relates to readily processable polyamide molding compounds combining very good mechanical and electrical properties with high surface quality based on copolyamides and magnesium hydroxide.
摘要:
The invention relates to thermally stable, weather-resistant polyamide moulding compositions containing as stabiliser, a mixture of a copper halide, one or more halogen compounds and hypophosphorous acid or an alkali metal or alkaline earth metal salt of this acid, wherein the individual components of the stabiliser mixture are added in an amount such that the molar amount of halogen contained in the moulding composition is greater than or equal to six times the molar amount of and less than or equal to fifteen times the molar amount of copper contained in the moulding composition and the molar amount of phosphorus is greater than or equal to the molar amount of and less than or equal to ten times the molar amount of copper contained in the moulding composition.
摘要:
The invention relates to flameproofed non-drip polyamide molding compounds which contain certain quantities ofa) phosphinic acid esters of polyphenols still containing free phenolic OH groups,b) zinc borate and/or zinc oxide,c) thermoplastics having a predominantly aromatic main chain, optionallyd) antidripping agents (for example polyfluoroethylene polymers) and, optionally,reinforcing materials and/or mineral fillers and other additives for processing, stabilization, etc.
摘要:
The invention relates to a process for the production of caprolactam by thermal depolymerization of polyamide in the presence of small quantities of potassium carbonate at 250.degree. to 320.degree. C. and to a process for purifying the resulting caprolactam.
摘要:
The invention relates to polyamide molding compounds with increased viscosity, high thermal stability and favorable mechanical properties, to a process for their production and to their use.