Cross-linkable, halogen-free flame-resistant plastic...

Details Cross-linkable, halogen-free flame-resistant plastic... Cross-linkable, halogen-free flame-resistant plastic...

2005-05-17

2005-05-17

Szekely, Peter (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S099000, C524S100000, C524S349000, C524S350000, C524S351000, C524S400000, C524S437000

Reexamination Certificate

active

06894101

ABSTRACT:
The invention relates to a cross-linkable, halogen-free, flame-resistant plastic mixture which can especially be used, in a cross-linkable state, for coating cables. The inventive plastic mixture comprises the following plastic components: (a) 3 to 50 weight parts (phr) of at least one ethylene copolymer from the group comprising ethylene vinyl acetates, ethylene ethyl acrylates, ethylene methyl acrylates or ethylene butyl acrylates, (b) 30 to 96 weight parts (phr) of a high-density polyolefin, especially a HDPE (High Density Polyethylene) having a density of >0.94 g/cm3, and (c) 1 to 20 weight parts (phr) of a polyolefin which has been grafted with a derivative of an unsaturated carboxylic acid, especially HDPE-g carboxylic acid derivatives. Components (a) to (c) together produce a total of 100 weight parts (phr) of plastic. The mixture also comprises the following components: (d) 40 to 250 weight parts (phr) of a filling material, and (c) 0.1 to 15 weight parts (phr) of a stabilizer system.

REFERENCES:
patent: 0546841 (1993-06-01), None
Low-Smoke Self-Extinguishing Electrical Cable and Flame-Retardant . . . Therein Research Disclosure, No. 407, Mar. 1, 1998, pp. 245-262.

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