EP0032597A1
Expired / Lapsed
EP
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Coated marine structure
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1980-11-17
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Granted: —
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Expires: 2000-11-17
Abstract
Abstract A marine structure, the outer surface of which is at least partly coated with one or more layers, the outermost layer comprising a vulcanized silicone rubber which rubber contains silicon-free segments which are constituted of recurrent units. These recurrent units are preferably derived from monomers with ethylenic unsaturation, inparticular butyl acrylate and styrene. The outermost layer may also comprise a fluid organic compound such as a polydihydrocarbylsiloxane, a lubricating oil or a polyisobutylene.
Inventors
- 👤 Kenneth Maurice Riches
- 👤 Edward Brian Shone
- 👤 John William Bracken
- 👤 Donald Worrall
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 22:08
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/10; C09D5/00; C09D5/16; C09D5/1656; C09D5/1662; C09D5/1675
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
40 words
A marine structure, the outer surface of which is at least partly coated with one or more layers, characterized in that the outermost layer comprises a vulcanized silicone rubber which rubber contains silicon-free segments which are constituted of recurrent units.
Claim 2
Dependent Claim
40 words
A marine structure, the outer surface of which is at least partly coated with one or more layers, characterized in that the outermost layer comprises a vulcanized silicone rubber which rubber contains silicon-free segments which are constituted of recurrent units.
Claim 3
Dependent Claim
20 words
A marine structure according to claim 1, in which each recurring unit has a unit weight of at least 30.
Claim 4
Dependent Claim
17 words
A marine structure according to claim 2, in which the said unit weight is at least 50.
Claim 5
Dependent Claim
33 words
A marine structure according to any one of the preceding claims, in which the outermost layer has been prepared by vulcanizing an organopolysiloxane which contains silicon-free segments which are constituted of recurrent units.
Claim 6
Dependent Claim
19 words
A marine structure according to any one of the preceding claims, in which the silicon-free segments are polymeric segments.
Claim 7
Dependent Claim
19 words
A marine structure according to claim 5, in which the polymeric segments are derived from monomers containing ethylenic unsaturation.
Claim 8
Dependent Claim
26 words
A marine structure according to claim 6, in which the silicon-free segments are linked to silicon atoms in the said polysiloxane via alkylene or alkylidene groups.
Claim 9
Dependent Claim
15 words
A marine structure according to claim 7, in which the alkylene groups are methylene groups.
Claim 10
Dependent Claim
28 words
A marine structure according to any one of claims 6-8, in which at least part of the monomers containing ethylenic unsaturation consists of unsaturated acids or derivatives thereof.
Claim 11
Dependent Claim
16 words
A marine structure according to claim 9, in which the derivatives of unsaturated acids are esters.
Claim 12
Dependent Claim
25 words
A marine structure according to claim 10, in which the esters of unsaturated acids are esters of acrylic acid or methacrylic acid and monovalent alcohols.
Claim 13
Dependent Claim
13 words
A marine structure according to claim 11, in which the ester is butylacrylate.
Claim 14
Dependent Claim
24 words
A marine structure according to any one of claims 6-12, in which at least part of the monomers containing ethylenic unsaturation consists of styrene.
Claim 15
Dependent Claim
37 words
A marine structure according to any one of the preceding claims, in which the weight percentage of the silicon-free segments (calculated on the ultimate vulcanized rubber) is from 20 to 80, in particular from 30 to 60.
Claim 16
Dependent Claim
42 words
A marine structure according to any one of the preceding claims, in which the outermost layer comprises a fluid organic compound which is liquid at the temperature prevailing in sea-water and has a boiling point at atmospheric pressure of at least 250°C.
Claim 17
Dependent Claim
17 words
A marine structure according to claim 15, in which the fluid organic compound is a silicone fluid.
Claim 18
Dependent Claim
15 words
A marine structure according to claim 16, in which the silicone fluid consists of polydihydrocarbylsiloxanes.
Claim 19
Dependent Claim
18 words
A marine structure according to claim 17, in which the hydrocarbyl groups consist of methyl and/or phenyl groups.
Claim 20
Dependent Claim
19 words
A marine structure according to claim 15, in which the fluid organic compound consists of one or more hydrocarbons.
Claim 21
Dependent Claim
17 words
A marine structure according to claim 19, in which the fluid organic compound is a lubricating oil.
Claim 22
Dependent Claim
24 words
A marine structure according to claim 19, in which the fluid organic compound is a polyolefin with a molecular weight up to about 5000.
Claim 23
Dependent Claim
19 words
A marine structure according to claim 21, in which the polyolefin is polyisobutene with a molecular weight from 300-500.
Claim 24
Dependent Claim
43 words
A mixture which comprises an organopolysiloxane which contains silicon-free segments, which segments are constituted of recurrent units, and a fluid organic compound which is liquid at the temperatures prevailing in sea-water and has a boiling point at atmospheric pressure of at least 250°C.
Claim 25
Dependent Claim
43 words
A mixture which comprises an organopolysiloxane which contains silicon-free segments, which segments are constituted of recurrent units, and a fluid organic compound which is liquid at the temperatures prevailing in sea-water and has a boiling point at atmospheric pressure of at least 250°C.
Claim 26
Independent Claim
48 words
A method for the manufacture of a coated marine structure by coating at least part of the outer surface of a marine structure by application of an organopolysiloxane which contains segments linked to the said polysiloxane which segments are constituted of recurrent units, and vulcanizing the said polyorganosiloxane.
Claim 27
Independent Claim
48 words
A method for the manufacture of a coated marine structure by coating at least part of the outer surface of a marine structure by application of an organopolysiloxane which contains segments linked to the said polysiloxane which segments are constituted of recurrent units, and vulcanizing the said polyorganosiloxane.
Claim 28
Dependent Claim
18 words
A method according to claim 24, in which the recurrent units are derived from monomers containing ethylenic unsaturation.
References Cited (Backward Citations)
DE2101074A1
Cited
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