THERMOPLASTIC RESIN COMPOSITION AND MOULDED ARTICLE OBTAINED BY USING THERMOPLASTIC RESIN COMPOSITION Russian patent published in 2020 - IPC C08L23/10 C08L23/12 C08K3/26 C08K3/105 C08J5/18 C08F10/06 

Abstract RU 2739990 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a thermoplastic polymer composition comprising a thermoplastic polymer and an inorganic filler, wherein the thermoplastic polymer is polypropylene containing polypropylene (B), which does not contain long chain branches, and polypropylene (A) having a structure with long chain branches, in weight ratio of 80:20 to 98:2, inorganic filler is calcium carbonate, wherein weight ratio of polypropylene relative to total weight of thermoplastic polymer composition ranges from 8/100.5 to 40/100.5, and weight ratio of calcium carbonate relative to total weight of composition of thermoplastic polymer ranges from 60/100.5 to 92/100.5, as well as to articles made from said thermoplastic composition.

EFFECT: invention enables to obtain sheets and articles from thermoplastic composition, having excellent heat resistance and fire-resistance and not causing problems when feeding in device, in which heat fixing process is carried out even when they contain a large amount of inorganic filler.

13 cl, 2 tbl, 2 dwg

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RU 2 739 990 C1

Authors

Kuroki Shigeki

Sasakawa Gouki

Dates

2020-12-30Published

2018-09-19Filed