EP 1242542 A2 20020925 - METAL SURFACES COATED WITH FLUORINATED POLYMERS
Title (en)
METAL SURFACES COATED WITH FLUORINATED POLYMERS
Title (de)
MIT FLUORPOLYMEREN BESCHICHTETE METALLOBERFLÄCHEN
Title (fr)
SURFACES METALLIQUES REVETUES DE POLYMERES FLUORES
Publication
Application
Priority
- FR 0102296 W 20010716
- FR 0009474 A 20000719
Abstract (en)
[origin: US6773815B2] The present invention relates to a coated metal surface comprising, successively:a layer (1) of epoxy primer placed next to the metal,a layer (2) of binder comprising 98 to 50 parts by weight of at least one fluoropolymer L3 per 2 to 50 parts, respectively, of at least one polymer chosen from acrylic polymers L1 and polymers L2 which are fluoropolymers chemically modified by a partial dehydrofluorination followed by an oxidation,a layer (3) of fluoropolymer.According to a first variant, the coating does not comprise the layer (3). However, it is recommended that the layer (2) which becomes the outer layer should be thicker than in the structure of the main invention.According to a second variant, the coating does not comprise the layer of primer (1), the layer of binder necessarily contains the polymer L2 and the surface is necessarily the outer surface of tubes.According to a third variant, the coating does not comprise the layer (2) and the layer (1) comprises a mixture of epoxy primer and polymer L2.The invention relates more particularly to the coating of the outer surface of tubes. These tubes are useful for the development of offshore hot oil wells, since it is necessary for the tubes which transport the hot oil to withstand corrosion by seawater.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
B05D 5/083 (2013.01 - EP US); B05D 7/58 (2013.01 - EP US); Y10T 428/12007 (2015.01 - EP US); Y10T 428/31522 (2015.04 - EP US); Y10T 428/31529 (2015.04 - EP US); Y10T 428/3154 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0206406 A2 20020124; WO 0206406 A3 20020523; AT E256718 T1 20040115; AU 7645101 A 20020130; BR 0106980 A 20020514; CA 2385399 A1 20020124; DE 60101547 D1 20040129; DE 60101547 T2 20040923; DK 1242542 T3 20040413; EP 1242542 A2 20020925; EP 1242542 B1 20031217; FR 2811999 A1 20020125; FR 2811999 B1 20021213; NO 20021175 D0 20020308; NO 20021175 L 20020308; TR 200400532 T4 20040421; US 2003087100 A1 20030508; US 6773815 B2 20040810
DOCDB simple family (application)
FR 0102296 W 20010716; AT 01954100 T 20010716; AU 7645101 A 20010716; BR 0106980 A 20010716; CA 2385399 A 20010716; DE 60101547 T 20010716; DK 01954100 T 20010716; EP 01954100 A 20010716; FR 0009474 A 20000719; NO 20021175 A 20020308; TR 200400532 T 20010716; US 8856002 A 20020718