Laminate

A laminated body and shape technology, applied in layered products, synthetic resin layered products, furniture parts, etc., can solve the problems of high specific gravity and high cost, and achieve the effect of excellent destructive compressive strength

Pending Publication Date: 2021-11-12
UBE IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while avoiding the use of halogen-containing materials in terms of environmental protection, there are problems of high specific gravity and high cost, and the development of piping systems that use halogen-free materials, have excellent barrier properties to chemical solutions, and are resistant to various chemical solutions is being sought

Method used

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  • Laminate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0212] Using the aliphatic polyamide composition (A-1) and the modified polyolefin (B-1) shown above, using a PAL32 (manufactured by Mylfare Co., Ltd.) double-layer pipe forming machine, (A-1) was heated at 270° C. The extrusion temperature and (B-1) were respectively melted at an extrusion temperature of 220° C., and the discharged molten resins were merged by a confluencer to form a laminated tubular body. Then, it is cooled and removed by a sizing die for size control, and (a) layer (outermost layer) formed from (A-1) and (b) layer (outermost layer) formed from (B-1) are produced. In the case of the inner layer), a laminated tube having a layer configuration of (a) / (b)=0.80 / 0.20 mm, an inner diameter of 6.0 mm, and an outer diameter of 8.0 mm was obtained. Table 1 shows the measurement results of the physical properties of the laminated tubes (ie, the results of the high-temperature breaking compressive strength for 5 laminated tubes and the test results for the low-tempera...

Embodiment 1-2

[0214] In Example 1-1, except that the layer thickness was changed, by the same method as in Example 1-1, the layer composition (a) / (b)=0.65mm / 0.35mm and the inner diameter of 6.0mm were obtained. , A laminated tube with an outer diameter of 8.0 mm. Table 1 shows the measurement results of physical properties of the laminated tube.

Embodiment 1-3

[0216] In Example 1-1, except that the layer thickness was changed, the same method as in Example 1-1 was used to obtain a layer composition of (a) / (b)=0.50mm / 0.50mm and an inner diameter of 6.0mm , A laminated tube with an outer diameter of 8.0 mm. Table 1 shows the measurement results of physical properties of the laminated tube.

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Abstract

Provided is a laminate that has excellent low-temperature impact resistance and bursting pressure strength at high temperatures despite having a thick modified polyolefin layer.The laminate has two or more layers including an (a) layer and a (b) layer, the (a) layer includes an aliphatic polyamide composition (A), and the (b) layer includes a modified polyolefin (B). The modified polyolefin (B) includes a unit derived from a monomer based on an alfa-olefin having 2-10 carbon atoms, and a unit derived from an unsaturated compound having at least one functional group selected from the group consisting of: unsaturated compounds having at least one group selected from the group consisting of a carboxyl group, a hydroxyl group, an epoxy group, an amino group, an amide group, an imide group, a nitrile group, a thiol group, and an isocyanate group; and derivatives of unsaturated compounds having a carboxyl group. The Shore hardness (D scale) of the modified polyolefin (B) as measured according to ASTM D2240 is 30-61.

Description

technical field [0001] The present invention relates to laminated bodies. Background technique [0002] Various pressure pipes such as oil pressure pipes and water pressure pipes, vacuum pipes, fuel pipes used in automobiles, brake pipes, coolant hoses, air-conditioning pipes, SCR (diesel engine exhaust removal device) pipes, control pipes, etc. A large number of hoses / tubes are used for cable glands and the like. Chemical solutions such as coolants (alcohol and water), refrigerants, oils, urea solutions, etc. are transported in these hoses / pipes. For various hoses / pipes etc. used in the automotive industry, high bursting pressure strength at high temperature, long-term heat resistance, chemical resistance, water vapor and / or chemical solution barrier properties, High performance such as flexibility. [0003] In particular, the circulating fluid is used for coolant (LLC) mainly composed of ethylene glycol to prevent freezing in winter, urea solution enclosed as a catalyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32C08G69/14B32B1/08F16L11/04
CPCC08G69/14F16L11/04F16L9/12C08L77/02B32B2250/24B32B27/22B32B2307/306B32B2419/00B32B27/18B32B2307/536B32B27/34B32B2307/5825B32B2307/56B32B2535/00B32B1/08B32B2457/00B32B2307/54B32B2597/00B32B2307/30B32B2605/08B32B2479/00B32B2307/558B32B27/08B32B27/32B32B2307/732B32B2307/308B32B2307/40B32B2250/02B32B2264/00C08L51/06C08J5/18C08J2323/26C08J2377/02C08J2423/26C08L23/26C08L2203/16F16L2011/047
Inventor 坪井一俊堂山大介藤井广昭楠本孝明
Owner UBE IND LTD
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