Sound insulation composition and sound insulation sheet for vehicle
AssigneeBYD Company Limited
InventorsMin Zhang, Xinping Lin, Yaxuan Sun, Mingshuang Zhou, Xiong Zhou
Life of this patent
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Abstract
A sound insulation composition and a sound insulation sheet for a vehicle are provided. The sound insulation composition includes 50 to 300 parts by weight of EPDM rubber, 10 to 300 parts by weight of mica powers, 10 to 300 parts by weight of dolomite, 2 to 15 parts by weight of a vulcanizing agent, 3 to 60 parts by weight of a compatilizer, 30 to 300 parts by weight of a fire retardant, 0.2 to 3 parts by weight of a cross-linking agent, 10 to 80 parts by weight of a plasticizer, and 100 to 500 parts by weight of barium sulfate. The sound insulation sheet for the vehicle is made of the sound insulation composition mentioned above.
Claims16
A sound insulation material composition, comprising:
- 50 to 300 parts by weight of EPDM rubber,
- 10 to 300 parts by weight of mica powers,
- 10 to 300 parts by weight of dolomite,
- 2 to 15 parts by weight of a vulcanizing agent,
- 3 to 60 parts by weight of a compatilizer,
- 30 to 300 parts by weight of a fire retardant,
- 0.2 to 3 parts by weight of a cross-linking agent,
- 10 to 80 parts by weight of a plasticizer, and
- 100 to 500 parts by weight of barium sulfate.
A sound insulation sheet for a vehicle, wherein the sound insulation sheet is prepared by mixing, extruding, pressing and vulcanizing a sound insulation composition, and the insulation composition includes:
- 50 to 300 parts by weight of EPDM rubber,
- 10 to 300 parts by weight of mica powers,
- 10 to 300 parts by weight of dolomite,
- 2 to 15 parts by weight of a vulcanizing agent,
- 3 to 60 parts by weight of a compatilizer,
- 30 to 300 parts by weight of a fire retardant,
- 0.2 to 3 parts by weight of a cross-linking agent,
- 10 to 80 parts by weight of a plasticizer, and
- 100 to 500 parts by weight of barium sulfate.
Dependencies are inferred from the claim text.