Resin-made pipe
AssigneeSumitomo Chemical Company, Limited
InventorTaiga SAKAI
Life of this patent
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Abstract
A resin-made pipe is provided, the resin-made pipe containing: a liquid crystal polyester resin composition as a formation material, in which the pipe has a bending part, a melt viscosity of the liquid crystal polyester resin composition satisfies Formula (A), and an arithmetic mean roughness (Ra) of an inner surface of the pipe in an extension direction is 0.2 μm or more and 5 μm or less. B/A≤10 (A) (A is a melt viscosity of the liquid crystal polyester resin composition at a temperature being a flow starting temperature+20° C. and B is a melt viscosity of the liquid crystal polyester resin composition at the flow starting temperature.)
Claims12
A resin-made pipe comprising:
- a liquid crystal polyester resin composition as a formation material,
- wherein the pipe has a bending part,
- a melt viscosity of the liquid crystal polyester resin composition satisfies Formula (A), and
- an arithmetic mean roughness (Ra) of an inner surface of the pipe in an extension direction is 0.2 μm or morep and 5 μm or less,
- B/A≤10 (A)
- (A is the melt viscosity of the liquid crystal polyester resin composition at a temperature=a flow start temperature+20° C., and B is the melt viscosity of the liquid crystal polyester resin composition at the flow start temperature).
Dependencies are inferred from the claim text.