RU93046279A - METHOD OF REPAIRING PLASTIC COATINGS OF METAL PIPES AND REPAIR COATING - Google Patents

METHOD OF REPAIRING PLASTIC COATINGS OF METAL PIPES AND REPAIR COATING

Info

Publication number
RU93046279A
RU93046279A RU93046279/04A RU93046279A RU93046279A RU 93046279 A RU93046279 A RU 93046279A RU 93046279/04 A RU93046279/04 A RU 93046279/04A RU 93046279 A RU93046279 A RU 93046279A RU 93046279 A RU93046279 A RU 93046279A
Authority
RU
Russia
Prior art keywords
metal pipes
plastic coatings
propylene
outer radius
copolymers
Prior art date
Application number
RU93046279/04A
Other languages
Russian (ru)
Other versions
RU2109787C1 (en
Inventor
Марзола Роберто
Луиджи Ригоси Джиан
Original Assignee
Хаймонт Инкорпорейтед
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ITMI921746A external-priority patent/IT1255234B/en
Application filed by Хаймонт Инкорпорейтед filed Critical Хаймонт Инкорпорейтед
Publication of RU93046279A publication Critical patent/RU93046279A/en
Application granted granted Critical
Publication of RU2109787C1 publication Critical patent/RU2109787C1/en

Links

Claims (1)

Части покрытий из пластмассового материала на металлических трубах, которые были либо сняты, либо повреждены, ремонтируют с использованием одного или более сегментов полого цилиндра, имеющего внутренний радиус, равный внешнему радиусу металлической трубы, и внешний радиус, равный сумме внешнего радиуса металлической трубы плюс длина от 80 до 120 % толщины покрытия. Сегмент полого цилиндра изготовляют из полимерной композиции, предпочтительно вспененной, содержащей 92-98 мас.% термопластичного полимера, выбранного из полипропилена кристаллических сополимеров пропилена, содержащих от 2 до 25 мол. % этилена и/или альфа-олефина с 4-10 атомами углерода гетерофазные композиции, содержащие этот пропилен или кристаллические сополимеры пропилена в комбинации с одним или более эластомерными олефиновыми сополимерами; 2-8 мас.% наполнителя, имеющего задачу блокирования ультрафиолетового излучения.Parts of plastic coatings on metal pipes that have either been removed or damaged are repaired using one or more segments of a hollow cylinder having an inner radius equal to the outer radius of the metal pipe and an outer radius equal to the sum of the outer radius of the metal pipe plus 80 to 120% of the coating thickness. The hollow cylinder segment is made from a polymer composition, preferably foamed, containing 92–98 wt.% Of a thermoplastic polymer selected from polypropylene crystalline propylene copolymers containing from 2 to 25 mol. % ethylene and / or alpha-olefin with 4-10 carbon atoms heterophase compositions containing this propylene or crystalline copolymers of propylene in combination with one or more elastomeric olefin copolymers; 2-8 wt.% Filler, having the task of blocking ultraviolet radiation.
RU93046279/04A 1992-07-17 1993-07-16 Method of repairing plastic coatings on metallic pipes and repair coating RU2109787C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI921746A IT1255234B (en) 1992-07-17 1992-07-17 PROCEDURE FOR REPAIRING EXPANDED PLASTIC COATINGS OF METAL TUBES
ITMI92A001746 1992-07-17
USMI92A001746 1992-07-17

Publications (2)

Publication Number Publication Date
RU93046279A true RU93046279A (en) 1996-07-20
RU2109787C1 RU2109787C1 (en) 1998-04-27

Family

ID=11363689

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93046279/04A RU2109787C1 (en) 1992-07-17 1993-07-16 Method of repairing plastic coatings on metallic pipes and repair coating

Country Status (8)

Country Link
US (1) US5565051A (en)
EP (1) EP0579249B1 (en)
BR (1) BR9302873A (en)
CA (1) CA2099411C (en)
DE (1) DE69327617T2 (en)
IT (1) IT1255234B (en)
NO (1) NO305414B1 (en)
RU (1) RU2109787C1 (en)

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EP1926786B1 (en) * 2005-08-11 2010-12-22 3M Innovative Properties Company Coated articles comprising metal substrates
US7513275B2 (en) * 2005-12-01 2009-04-07 Neptune Research, Inc. Repair kit for natural gas pipe
CA2643339A1 (en) * 2006-02-23 2007-08-30 Basell Poliolefine Italia S.R.L. Propylene polymers for injection molding applications
CN101389704B (en) * 2006-02-23 2011-08-03 巴塞尔聚烯烃意大利有限责任公司 Propylene Polymers for Injection Molding Applications
DE102007040683A1 (en) * 2007-08-29 2009-03-05 Evonik Degussa Gmbh Sheathed pipe
EP2098576B1 (en) * 2008-02-27 2011-11-02 Borealis Technology Oy Coated pipe and propylene polymer composition therefor
US8623932B2 (en) 2008-12-17 2014-01-07 Basell Poliolefine Italia S.R.L. Foamed polyolefin composition
EP2366936B1 (en) * 2010-03-18 2015-05-06 Borealis AG Method of repairing a pipe coating
IT1403637B1 (en) * 2011-01-20 2013-10-31 Saipem Spa METHOD OF JUNCTION OF TUBE CUTTINGS TO CREATE PIPES FOR HYDROCARBONS, IN PARTICULAR SUBMARINE PIPES
DE102011007104A1 (en) * 2011-04-11 2012-10-11 Evonik Degussa Gmbh Polyamide sheathed steel construction tubes for offshore structures
DE102012207173A1 (en) * 2012-04-30 2013-10-31 Evonik Degussa Gmbh Coated metal object
US20220154870A1 (en) * 2015-02-17 2022-05-19 Winn & Coales International Limited Metal pipes with anticorrosive polyolefin covering layer
CN110899072A (en) * 2019-11-06 2020-03-24 湖北闪复管道科技有限公司 Safety protection method for outer surface coating of underground oil gas process pipeline

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