EP0215501A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Modified block copolymers, impact resistant compositions containing the copolymers and a process for producing the copolymers
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1986-08-04
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Granted: —
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Expires: 2006-08-04
Abstract
Abstract Thermally stable modified selectively hydrogenated high 1,2-content block copolymer wherein a functional group is grafted to the block copolymer in the monoalkenyl-arene block and impact resistant polymeric compositions comprising:- (a) 3-50% by weight of such modified block copolymers, and (b) 50-97% by weight of polyamide having a number average molecular weight of at least 5,000 or a thermoplastic polyester.
Inventors
- 👤 William Peter Gergen
- 👤 Robert Gardiner Lutz
- 👤 Michael Kent Martin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 05:07
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F8/00; C08F8/04; C08L; C08L53/00; C08L53/02; C08L53/025
Claims Analysis
Total Claims: 57
Claim 1
Independent Claim
97 words
A functionalized selectively hydrogenated block copolymer of the formula B n (AB) o A p where n is 0 or an integer of at least one, o is an integer of at least one and p is 0 or an integer of at least one, A is predominantly a polymerized monalkenyl-aromatic hydrocarbon block and B prior to hydrogenation is predominantly a polymerized conjugated diene hydrocarbon block, to which copolymer has been grafted at least one electrophilic graftable molecule or electrophile wherein substantially all of said graftable molecules are grafted to the block copolymer in the monoalkenyl-arene block.
Claim 2
Dependent Claim
97 words
A functionalized selectively hydrogenated block copolymer of the formula B n (AB) o A p where n is 0 or an integer of at least one, o is an integer of at least one and p is 0 or an integer of at least one, A is predominantly a polymerized monalkenyl-aromatic hydrocarbon block and B prior to hydrogenation is predominantly a polymerized conjugated diene hydrocarbon block, to which copolymer has been grafted at least one electrophilic graftable molecule or electrophile wherein substantially all of said graftable molecules are grafted to the block copolymer in the monoalkenyl-arene block.
Claim 3
Dependent Claim
27 words
A functionalized block copolymer as claimed in claim 1 in which each block A has an average molecular weight in the range of from 1,000 to 115,000.
Claim 4
Dependent Claim
32 words
A functionalized block copolymer as claimed in claim 1 or 2 in which said polymerized conjugated diene hydrocarbon block has an average molecular weight in the range of from 20,000 to 450,000.
Claim 5
Dependent Claim
31 words
A functionalized block copolymer as claimed in claim 1 or 2 in which the blocks A constitute in the range of from 1 to 95 weight per cent of the copolymer.
Claim 6
Dependent Claim
29 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the unsaturation of the block B is less than 20% of the original unsaturation.
Claim 7
Dependent Claim
28 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the unsaturation of the A blocks is above 50% of the original unsaturation.
Claim 8
Dependent Claim
24 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the grafted molecule contains one or more functional groups.
Claim 9
Dependent Claim
29 words
A functionalized block copolymer as claimed in any one of the preceding claims in which prior to hydrogenation, the polymeric blocks A are polymer blocks of a monoalkenyl-aromatic hydrocarbon.
Claim 10
Dependent Claim
16 words
A functionalized block copolymer as claimed in claim 8 in which the monoalkenyl-aromatic hydrocarbon is styrene.
Claim 11
Dependent Claim
20 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the conjugated diene is 1,3-butadiene.
Claim 12
Dependent Claim
23 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the block copolymer is a styrene-ethylene/butylene-styrene block copolymer.
Claim 13
Dependent Claim
34 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the blocks A comprise in the range of from 1 to 40 per cent by weight of the copolymer.
Claim 14
Dependent Claim
31 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the unsaturation of block B has been reduced to less than 10% of its original value.
Claim 15
Dependent Claim
27 words
A functionalized block copolymer as claimed in claim 13 in which the unsaturation of block B has been reduced to less than 5% of its original value.
Claim 16
Dependent Claim
34 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the average unsaturation of the hydrogenated block copolymer has been reduced to less than 20% of its original value.
Claim 17
Dependent Claim
29 words
A functionalized block copolymer as claimed in any one of the preceding claims in which an average of less than 10% of the monoalkenyl-aromatic hydrocarbon units have been hydrogenated.
Claim 18
Dependent Claim
30 words
A functionalized block copolymer as claimed in any one of the preceding claims in which block A has an average molecular weight in the range of from 500 to 60,000.
Claim 19
Dependent Claim
30 words
A functionalized block copolymer as claimed in any one of the preceding claims in which block B has an average molecular weight in the range of from 35,000 to 150,000.
Claim 20
Dependent Claim
28 words
A functionalized block copolymer as claimed in any one of the preceding claims in which in the range of from 35%-50% of the condensed butadiene units having 1,2-configuration.
Claim 21
Dependent Claim
30 words
A functionalized block copolymer as claimed in any one of claims 1 to 15 in which an average of more than 25% of the monoalkenyl-aromatic hydrocarbon units have been hydrogenated.
Claim 22
Dependent Claim
20 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the electrophile is carbon dioxide.
Claim 23
Dependent Claim
21 words
A functionalized block copolymer as claimed in any one of claims 1 to 20 in which the electrophile is ethylene oxide.
Claim 24
Dependent Claim
35 words
A functionalized block copolymer as claimed in any one of claims 1 to 20 in which the electrophiles are selected from the group consisting of aldehydes, ketones and carboxylic acids and salts and esters thereof.
Claim 25
Dependent Claim
20 words
A functionalized block copolymer as claimed in any one of claims 1 to 20 in which the electrophiles are epoxides.
Claim 26
Dependent Claim
20 words
A functionalized block copolymer as claimed in any one of claims 1 to 20 in which the electrophile is sulphur.
Claim 27
Dependent Claim
22 words
A functionalized block copolymer as claimed in any one of claims 1 to 20 in which the electrophile is a boron alkoxide.
Claim 28
Dependent Claim
21 words
A functionalized block copolymer as claimed in any one of claims 1 to 20 in which the electrophile is an isocyanate.
Claim 29
Dependent Claim
23 words
A functionalized block copolymer as claimed in any one of claims 1 to 20 in which the electrophile is a molecule containing silicon.
Claim 30
Dependent Claim
21 words
A functionalized block copolymer as claimed in any one of claims 1 to 20 in which the electrophile is a sulphonate.
Claim 31
Dependent Claim
27 words
A functionalized block copolymer as claimed in any one of claims 7 to 29 in which the functional groups are carboxylic acids or salts or esters thereof.
Claim 32
Dependent Claim
21 words
A functionalized block copolymer as claimed in any one of claims 7 to 29 in which the functional groups are ketones.
Claim 33
Dependent Claim
23 words
A functionalized block copolymer as claimed in any one of claims 7 to 29 in which the functional groups are alcohols and alkoxides.
Claim 34
Dependent Claim
21 words
A functionalized block copolymer as claimed in any one of claims 7 to 29 in which the functional groups are amines.
Claim 35
Dependent Claim
26 words
A functionalized block copolymer as claimed in any one of claims 7 to 29 in which the functional groups are functional groups containing a silicon atom.
Claim 36
Dependent Claim
21 words
A functionalized block copolymer as claimed in any one of claims 7 to 29 in which the functional groups are thiols.
Claim 37
Dependent Claim
21 words
A functionalized block copolymer as claimed in any one of claims 7 to 29 in which the functional groups are borates.
Claim 38
Dependent Claim
21 words
A functionalized block copolymer as claimed in any one of claims 7 to 29 in which the functional groups are amides.
Claim 39
Dependent Claim
39 words
A functionalized block copolymer as claimed in any one of the preceding claims in which the grafted molecule or a derivative thereof is present in an amount in the range of from 0.02 to 20 per cent by weight.
Claim 40
Dependent Claim
33 words
A functionalized block copolymer as claimed in claim 38 in which the grafted molecule or its derivative is in an amount in the range of from 0.1 to 10 per cent by weight.
Claim 41
Dependent Claim
34 words
A functionalized block copolymer as claimed in claim 39 in which the grafted molecule or its derivative is present in an amount in the range of from 0.2 to 5 per cent by weight.
Claim 42
Dependent Claim
64 words
Impact resistant polymeric compositions comprising a) in the range of from 50 to 97 per cent of a polyamide having a number average molecular weight of at least 5,000, or of a thermoplastic polyester, and b) in the range of from 3 to 50 per cent by weight of a functionalized selectively hydrogenated block copolymer as claimed in any one of the preceding claims.
Claim 43
Dependent Claim
33 words
An impact resistant polymeric composition as claimed in claim 41 in which the polyamide or polyester is present in an amount in the range of from 70 to 95 per cent by weight.
Claim 44
Dependent Claim
33 words
An impact resistant polymeric composition as claimed in claim 42 in which the polyamide or polyester is present in an amount in the range of from 75 to 90 per cent by weight.
Claim 45
Dependent Claim
22 words
An impact resistant polymeric composition as claimed in any one of claims 41 to 43 in which the polyamide is nylon 6,6.
Claim 46
Dependent Claim
41 words
An impact resistant polymeric composition as claimed in any one of claims 41 to 43 in which the polyamide resin is selected from the group consisting of polyhexamethylene adipamide, polyhexamethylene sebacamide, polycaprolactam, polyhexamethylene isophthalamide, polyhexamethylene tere-co-isophthalamide and mixtures and copolymers thereof.
Claim 47
Dependent Claim
22 words
An impact resistant polymeric composition as claimed in any one of claims 41 to 43 in which the polyester is polybutylene terephthalate.
Claim 48
Dependent Claim
22 words
An impact resistant polymeric composition as claimed in any one of claims 41 to 43 in which the polyester is polyethylene terephthalate.
Claim 49
Dependent Claim
113 words
A process for producing a functionalized selectively hydrogenated block copolymer as claimed in any one of claims 1 to 40, which process comprises contacting hydrogenated block copolymers of conjugated dienes and monovinyl-substituted aromatic compounds with an alkyllithium compound, and a polar compound selected from the group consisting of tertiary amines and low molecular weight hydrocarbon ethers, to form a backbone polymer having active lithium atoms along the polymer chain, and thereafter contacting said backbone polymer and at least one electrophilic graftable molecule or electrophile to form backbone polymers with grafted molecules attached wherein substantially all of said graftable molecules which have been grafted are grafted to the block copolymer in the vinylarene block.
Claim 50
Dependent Claim
30 words
A process as claimed in claim 48 in which the polar compound is present in an amount in the range of from 0.1 to 10.0 equivalents per equivalent of lithium-alkyl.
Claim 51
Dependent Claim
30 words
A process as claimed in claim 49 in which the polar compound is present in an amount in the range of from 1 to 3 equivalents per equivalent of lithium-alkyl.
Claim 52
Dependent Claim
19 words
A process as claimed in any one of claims 48 to 50 in which the polar compound is N,N,N',N'-tetramethylethylenediamine.
Claim 53
Dependent Claim
34 words
A process as claimed in any one of claims 48 to 51 in which a molar ratio of said alkyl-lithium compound to vinylarene units in the range of from 0.001 to 3 is used.
Claim 54
Dependent Claim
21 words
A process as claimed in claim 52 in which said molar ratio is in the range of from 0.01 to 1.0.
Claim 55
Dependent Claim
19 words
A process as claimed in any one of claims 48 to 53 in which said alkyllithium compound is sec-butyllithium.
Claim 56
Dependent Claim
32 words
A process as claimed in any one of claims 48 to 54 in which said metallating step is performed at a temperature in the range of from 25 °C to 80 °C.
Claim 57
Dependent Claim
95 words
A process for producing functionalized selectively hydrogenated block copolymers as claimed in any one of claims 1 to 40 which process comprises contacting hydrogenated block copolymers of conjugated dienes and monovinyl-substituted aromatic compounds with tert-butyllithium to form a backbone polymer having active lithium atoms along the polymer chain, and thereafter contacting at least one electrophilic graftable molecule which upon reaction with the active lithium atoms will produce functional groups selected from the group consisting of carboxyls, alcohols and ethers wherein substantially all of said molecules are grafted to the block copolymer in the vinylarene block.
References Cited (Backward Citations)
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