EP0023084A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cross-linked polymer compositions and production thereof
Assignee: BP PLC
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Filing: 1980-06-16
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Granted: —
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Expires: 2000-06-16
Abstract
Abstract A method for forming a three-dimensional network containing encapsulated organic material comprises reacting a functionalised polymer and a complementary functional cross-linking agent (both being miscible with, and preferably soluble in, the organic material) in the presence of the organic material, which may be hydrocarbons and, particularly, oil. A two pack composition of the functionalised polymer and the cross-linking agent is also claimed. The method and composition may be used for recovering oil spilled on sea or land, for treating organic wastes or for preventing leakage of oil from tanks or pipelines.
Inventors
- 👤 Robert Gerald Fisher
- 👤 Alan John Plomer
- 👤 Ian Greig Meldrum
- 👤 Richard Andrew Robinson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 06:02
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; C08; C08C; C08C19/00; C08C19/30; C08J; C08J3/00; C08J3/24; C08J3/241; C09; C09K; C09K3/00; C09K3/32; F; F16; F16L; F16L55/00; F16L55/10; F16L55/1003; Y; Y02; Y02P; Y02P20/00; Y02P20/141; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0419
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
253 words
A method for cross-linking a functionalised polymer in the presence of organic material comprising reacting a liquid polymer which is miscible with the organic material and which contains functional groups with a ' cross-linking agent which is also miscible with the organic material and which contains complementary functional groups and allowing a three-dimensional polymer network containing encapsulated organic material to form. A method as claimed in claim 1 wherein the organic material is hydrocarbons. A method as claimed in claim 1 or 2 wherein the functionalised polymer and cross-linking agent are added in a molar ratio of 3:1 to 1:3, based on the molar ratio of functional groups in the polymer and agent. A method as claimed in claim 1, 2 or 3 wherein the polymer and cross-linking agent are soluble in the organic material. A method as claimed in claim 1, 2, 3, or 4 wherein the amount of functionalised polymer is from 0.1 to 30% wt of the organic material. A method for gelling oil comprising mixing a functionalised polymer with a cross-linking agent in the presence of the oil using a method as claimed in any of claims 1 to 5. A two pack composition comprising in one pack a liquid polymer miscible with organic material and containing functional groups and in the other pack a cross-linking agent also miscible with the organic material and containing complementary functional groups, the components being capable, on mixing in the presence of organic material, of forming a three-dimensional network containing encapsulated organic material.
Claim 2
Dependent Claim
31 words
A two pack composition as claimed in claim 7 wherein the functional groups and complementary functional groups are, respectively, carboxylic acid, anhydride or acid chloride groups and amine or alcohol groups.
Claim 3
Dependent Claim
34 words
A two pack composition as claimed in claim 8 wherein the carboxylic acid, anhydride or acid chloride groups are on the liquid polymer and the amine or alcohol groups are on the cross-linking agent.
Claim 4
Dependent Claim
18 words
A two pack composition as claimed in claims 7, 8 or 9 wherein the polymer is a polyolefin.
Claim 5
Dependent Claim
22 words
A two pack composition as claimed in claim 10 wherein the functionalised polymer is maleinised polybutadiene, polyisoprene, EPDM rubber or natural rubber.
Claim 6
Dependent Claim
29 words
A two pack composition as claimed in any of claims 6 to 11 wherein the cross-linking agent is rendered soluble in organic material by complexing with a metal carboxylate.
Claim 7
Dependent Claim
35 words
A two pack composition as claimed in claim 12 wherein the metal carboxylate is a basic zinc salt of general formula (RCOO) 6 2n 4 0 where R is alkyl, cycloalkyl, aryl, aralkyl or alkaryl.
Claim 8
Dependent Claim
37 words
A two pack composition as claimed in any of claims 6 to 11 wherein the cross-linking agent is rendered soluble in organic material by including in the agent a hydrocarbyl group having at least 8 carbon atoms.
Claim 9
Dependent Claim
18 words
A two pack composition as claimed in claim 14 wherein the large hydrocarbyl group is a polyisobutylene group.
Claim 10
Dependent Claim
32 words
A two pack composition as claimed in claim 14 or 15 wherein the cross-linking agent is dispersed or dissolved in a diluent or solvent which is itself soluble in the organic material.
Claim 11
Dependent Claim
31 words
A two pack composition as claimed in any of claims 6 to 16 wherein the functionalised polymer and the cross-linking agent have a viscosity of up to 20 poise at 25°C.
Claim 12
Dependent Claim
35 words
A three-dimensional solid polymer containing encapsulated organic material whenever produced by a method as claimed in any of claims 1 to 6 or using a composition as claimed in any of claims 7 to 17.
Claim 13
Dependent Claim
13 words
A method as claimed in claim 1 substantially as described in the Examples.
Claim 14
Dependent Claim
15 words
A two pack composition as claimed in claim 7 substantially as described in the Examples.
References Cited (Backward Citations)
GB723456A
Cited
DE1026900B
Cited
US3718445A
Cited
US3460922A
Cited
US3869385A
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US3816359A
Cited
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