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US 6,706,350 B2Granted
Corrosion-resistant pipe and method for the preparation thereof
AssigneeGeneral Electric Company
InventorsSho Sato, Yoshinori Amaya
Life of this patent
Estimating the term…
Abstract
A corrosion-resistant pipe is formed by covering a surface of a pipe with a resin composition that contains (A) 1 to 98 parts by weight of a polyphenylene ether resin; (B) 1 to 98 parts by weight of a polystyrene resin; (C) 1 to 98 parts by weight of a polyolefin resin; wherein the total of (A), (B), and (C) is 100 parts by weight; and (D) 0.1 to 100 parts by weight of a compatibility reagent per 100 parts by weight total of (A), (B), and (C).
Claims15
A corrosion-resistant pipe, comprising:
- a pipe;
- and
- a protective layer covering a surface of the pipe, the protective layer comprising
- (A) 1 to 98 parts by weight of a polyphenylene ether resin;
- (B) 1 to 98 parts by weight of a polystyrene resin;
- (C) 1 to 98 parts by weight of a polyolefin resin;
- wherein the total of (A), (B), and (C) is 100 parts by weight;
- and
- (D) 0.1 to 100 parts by weight of a compatibility reagent per 100 total parts by weight of (A), (B), and (C);
- wherein the compatibility reagent is a hydrogenated styrene-diene block copolymer having a styrene content greater than 65% by weight.
7 more elements
A corrosion-resistant pipe, comprising:
- a steel pipe;
- and
- a protective layer covering a surface of the pipe, the protective layer comprising
- (A) 5 to 90 parts by weight of a polyphenylene ether resin;
- (B) 5 to 90 parts by weight of a polystyrene resin;
- (C) 5 to 90 parts by weight of a polyolefin resin;
- wherein the total of (A), (B), and (C) is 100 parts by weight;
- (D)) 0.2 to 50 parts by weight of a compatibility reagent per 100 total parts by weight of (A), (B), and (C);
- wherein the compatibility reagent is a hydrogenated styrene-diene block copolymer having a styrene content greater than 65% by weight;
- and
- (E) 1 to 50 parts by weight of an impact modifier per 100 total parts by weight of (A), (B), and (C).
8 more elements
A method of protecting a pipe from corrosion, comprising:
- covering a surface of the pipe with a protective layer comprising
- (A) 1 to 98 parts by weight of a polyphenylene ether resin;
- (B) 1 to 98 parts by weight of a polystyrene resin;
- (C) 1 to 98 parts by weight of a polyolefin resin;
- wherein the total of(A), (B), and (C) is 100 parts by weight;
- and
- (D)) 0.1 to 100 parts by weight of a compatibility reagent per 100 total parts by weight of (A), (B), and (C);
- wherein the compatibility reagent is a hydrogenated styrene-diene block copolymer having a styrene content greater than 65% by weight.
5 more elements
Dependencies are inferred from the claim text.