Composition for producing foamed layer of sheet, sheet containing the same, and production method thereof

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United States of America Patent

PATENT NO 10633503
APP PUB NO 20190016865A1
SERIAL NO

15811628

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Importance

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Abstract

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A composition for producing a foamed layer of a sheet, comprising: a primary component and an auxiliary component; the primary component is composed of polyvinyl chloride and calcium carbonate, and the auxiliary component comprises a regulator, a stabilizer, a lubricant and a foaming agent; in parts by weight, the polyvinyl chloride is 75 parts, the calcium carbonate is 75 to 80 parts, the regulator is 6 to 8 parts, the stabilizer is 3 to 5 parts, the lubricant is 0.7 to 1.4 parts, and the foaming agent is 0.2 to 0.7 parts. The compositions for producing a foamed layer and solid layers of a sheet in the present application do not contain any glue-like component, and there is no gluing process in the production method, so it is very environmentally friendly and healthy. The foamed layer is formed by foaming polyvinyl chloride and the solid layers made of non-foamed polyvinyl chloride are co-extruded on two sides of the foamed layer to form a core layer of the sheet, so that the sheet produced by the compositions and the method has excellent compression resistance, warping and shrinkage performance, and is waterproof, moisture-proof and mothproof.

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Patent Owner(s)

  • QINGDAO SANYI PLASTIC MACHINERY CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Zhou, Yuliang Qingdao, CN 10 5

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