Multilayer tubular molded body and method for producing multilayer tubular molded body
AssigneeToyox Co., Ltd.
InventorsDaichi Aoki, Kenichi Numata
Life of this patent
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Abstract
To provide a multilayer tubular molded body, which has high chemical resistance and heat resistance and excellent adhesive strength, and a method for producing the same, a multilayer tubular molded body 1 has an inner layer 2 containing a polyolefin as a main component, an outer layer 3 containing polyvinyl chloride as a main component, and an interlayer 4, which is provided between the inner layer 2 and the outer layer 3, has a function to attach the inner layer 2 and the outer layer 3, and contains a first polyolefin having an aromatic ring on a side chain and a second polyolefin having an ester containing group on a side chain.
Claims13
A multilayer tubular molded body, characterized by having
- an inner layer containing a polyolefin as a main component,
- an outer layer containing polyvinyl chloride as a main component, and
- an interlayer, which is provided between the inner layer and the outer layer, has a function to attach the inner layer and the outer layer, and contains a first polyolefin having an aromatic ring on a side chain and a second polyolefin having an ester containing group on a side chain, wherein a ratio of an amount of the first polyolefin and an amount of the second polyolefin contained in the interlayer is 95:5 to 50:50 by mass, and wherein a total amount of the first polyolefin and the second polyolefin contained in the interlayer is 75 mass % or more.
Dependencies are inferred from the claim text.