FIRE-RESISTANT POLYAMIDES WITH LIGHT COLOUR Russian patent published in 2017 - IPC C08L77/00 C08K3/02 C08K3/18 C08K5/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the thermoplastic moulding compositions, its use in the manufacture of fibers, films, moulded products, such as fibers, films, moulding products, as well as to the use of salt or copper (I) or silver (I) oxide, or its mixtures to produce moulding compositions or the indicated moulded products, imparting the certain properties to them, for example, the increased resistance to ultraviolet light, reduced by the phosphine formation, having less intense reddish colour tone, etc. The thermoplastic moulding compositions contains A) from 10 to 99.8 wt % of the thermoplastic polyamide, B) from 0.1 to 60 wt % of red phosphorus, C) from 0.01 to 4 wt % of the salt, the oxide or complex of the copper (I) or silver (I) or mixtures of these substances, D) from 0 to 40 wt % of the impact strength modifier, E) from 0 to 60 wt % of other additives. The weight percentages sum of the components A)-E) is 100%.

EFFECT: invention makes it possible to produce moulding compositions, based on thermoplastic polyamide with red phosphorus, as the flame retardant, characterized by the slight reddish own colour, improved colourability in light and gray tones, the increased resistance to the ultraviolet light and low propensity to form the phosphine.

15 cl, 3 tbl