US4417029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatization of star-block copolymers
Assignee: Lyondell Chemical Technology LP
•
Filing: 1981-08-03
•
Granted: 1983-11-22
•
Expires: 2001-08-03
Abstract
Abstract Star-block copolymers having functional groups associated with the nucleus of the copolymers have been prepared. The copolymers of from 10-90% by weight of a monovinyl aromatic compound and 10-90% by weight of a conjugated diene have at least 3 arms connected to a polyvinyl aromatic nucleus and up to the same number of polar functional groups attached to said nucleus as there are arms attached thereto.
Inventors
- 👤 Ralph Milkovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:43
CPC Classifications
C; C08; C08G; C08G81/00; C08G81/02; C08G81/021; C08G81/022; Y; Y10; Y10S; Y10S525/00; Y10S525/901
Claims Analysis
Total Claims: 53
Claim 1
Independent Claim
53 words
Star-block copolymers of from 25 to 90% by weight of a monovinyl aromatic compound and 10 to 75% by weight of a conjugated diene of 4 to 8 carbon atoms; said copolymers having at least three arms connected to a polyvinyl aromatic compound nucleus and having polar functional groups attached to said nucleus.
Claim 2
Dependent Claim
53 words
Star-block copolymers of from 25 to 90% by weight of a monovinyl aromatic compound and 10 to 75% by weight of a conjugated diene of 4 to 8 carbon atoms; said copolymers having at least three arms connected to a polyvinyl aromatic compound nucleus and having polar functional groups attached to said nucleus.
Claim 3
Dependent Claim
52 words
The star-block copolymer of claim 1 wherein said polar functional groups are selected from the group consisting of carboxyl, mercaptothiocarbonyl, sulfino, primary alcohols, secondary alcohols, tertiary alcohols, halides, epoxide, silane, phosphine, phosphorus halides, carbonyl chloride, anilines, alkyl amines, mercaptans, ketones, aldehydes, carboxylic acid amides, N-alkyl amides, isocyanates, sulfonyl halides, haloformates and siloxanols.
Claim 4
Dependent Claim
14 words
The star-block copolymer of claim 1 wherein said polar functional groups are carboxyl groups.
Claim 5
Dependent Claim
14 words
The star-block copolymer of claim 1 wherein said polar functional groups are mercaptothiocarbonyl groups.
Claim 6
Dependent Claim
14 words
The star-block copolymer of claim 1 wherein said polar functional groups are sulfino groups.
Claim 7
Dependent Claim
15 words
The star-block copolymers of claim 1 wherein said polar functional groups are primary alcohol groups.
Claim 8
Dependent Claim
15 words
The star-block copolymers of claim 1 wherein said polar functional groups are secondary alcohol groups.
Claim 9
Dependent Claim
15 words
The star-block copolymers of claim 1 wherein said polar functional groups are tertiary alcohol groups.
Claim 10
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are halides.
Claim 11
Dependent Claim
14 words
The star-block copolymers of claim 1 wherein said polar functional groups are epoxide groups.
Claim 12
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are silanes.
Claim 13
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are phosphines.
Claim 14
Dependent Claim
14 words
The star-block copolymers of claim 1 wherein said polar functional groups are phosphorus halides.
Claim 15
Dependent Claim
14 words
The star-block copolymers of claim 1 wherein said polar functional groups are carbonyl chlorides.
Claim 16
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are aniline.
Claim 17
Dependent Claim
14 words
The star-block copolymers of claim 1 wherein said polar functional groups are alkyl amines.
Claim 18
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are mercaptans.
Claim 19
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are ketones.
Claim 20
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are aldehydes.
Claim 21
Dependent Claim
15 words
The star-block copolymers of claim 1 wherein said polar functional groups are carboxylic acid amides.
Claim 22
Dependent Claim
14 words
The star-block copolymers of claim 1 wherein said polar functional groups are N-alkyl amides.
Claim 23
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are isocyanates.
Claim 24
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are haloformates.
Claim 25
Dependent Claim
14 words
The star-block copolymers of claim 1 wherein said polar functional groups are sulfonyl halides.
Claim 26
Dependent Claim
13 words
The star-block copolymers of claim 1 wherein said polar functional groups are siloxanols.
Claim 27
Dependent Claim
65 words
In a process for preparing star-block copolymers by polymerizing monovinyl aromatic compounds and/or conjugated dienes in an inert hydrocarbon solvent with hydrocarbyllithium initiator and coupling the resulting block polymers or copolymer chains with polyvinyl aromatic compounds, the improvement comprising reacting the star-block copolymers, prior to terminaton of the living lithium sites, with a derivatization agent to form polar functional groups at the polyvinyl aromatic nucleus.
Claim 28
Dependent Claim
65 words
In a process for preparing star-block copolymers by polymerizing monovinyl aromatic compounds and/or conjugated dienes in an inert hydrocarbon solvent with hydrocarbyllithium initiator and coupling the resulting block polymers or copolymer chains with polyvinyl aromatic compounds, the improvement comprising reacting the star-block copolymers, prior to terminaton of the living lithium sites, with a derivatization agent to form polar functional groups at the polyvinyl aromatic nucleus.
Claim 29
Dependent Claim
51 words
The process of claim 26 wherein the derivatization agent is selected from the group consisting of carbon dioxide, carbon disulfide, sulfur dioxide, alkylene oxides, aldehydes, ketones, episulfides, halogens, epihalohydrins, halosilanes, halophosphines, phosphorus halide, phosgene, p-haloaniline, cyclic amides, unsaturated amides, isocyanates, diisocyanates, dicarboxylic acid dihalides, dialdehydes, bishaloformates, disulfonyl halides, and cyclic siloxanes.
Claim 30
Dependent Claim
23 words
The process of claim 26 wherein the derivatization agent is carbon dioxide and the polar functional groups at the nucleus are carboxyl groups.
Claim 31
Dependent Claim
23 words
The process of claim 26 wherein the derivatization agent is carbon disulfide and the polar functional groups at the nucleus are mercaptothiocarbonyl groups.
Claim 32
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is sulfur dioxide and the polar functional at the nucleus are sulfino groups.
Claim 33
Dependent Claim
24 words
The process of claim 26 wherein the derivatization agent is ethylene oxide and the polar functional groups at the nucleus are primary alcohol groups.
Claim 34
Dependent Claim
29 words
The process of claim 26 wherein the derivatization agent is propylene oxide and the polar functional groups at the nucleus are a mixture of primary and secondary alcohol groups.
Claim 35
Dependent Claim
23 words
The process of claim 26 wherein the derivatization agent is a ketone and the polar functional groups at the nucleus are tertiary alcohols.
Claim 36
Dependent Claim
21 words
The process of claim 26 wherein the derivatization agent is octamethyltetrasiloxane and the polar functional groups at the nucleus are siloxanols.
Claim 37
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is a halogen and the polar functional groups at the nucleus are halides.
Claim 38
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is an epihalohydrin and the polar functional groups at the nucleus are epoxides.
Claim 39
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is a halosilane and the polar functional groups at the nucleus are silanes.
Claim 40
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is a halophosphine and the polar functional groups at the nucleus are phosphines.
Claim 41
Dependent Claim
24 words
The process of claim 26 wherein the derivatization agent is a phosphorus halide and the polar functional groups at the nucleus are phosphorus halides.
Claim 42
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is phosgene and the polar functional groups at the nucleus are carbonyl chlorides.
Claim 43
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is a p-haloaniline and the polar functional groups at the nucleus are anilines.
Claim 44
Dependent Claim
25 words
The process of claim 26 wherein the derivatization agent is a cyclic amide and the polar functional groups at the nucleus are amines or aldehydes.
Claim 45
Dependent Claim
23 words
The process of claim 26 wherein the derivatization agent is an isocyanate and the polar functional groups at the nucleus are N-substituted amides.
Claim 46
Dependent Claim
23 words
The process of claim 26 wherein the derivatization agent is an aldehyde and the polar functional groups at the nucleus are secondary alcohols.
Claim 47
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is an episulfide and the polar functional groups at the nucleus are mercaptans.
Claim 48
Dependent Claim
25 words
The process of claim 26 wherein the derivatization agent is an unsaturated amide and the polar functional groups at the nucleus are carboxylic acid amides.
Claim 49
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is a diisocyanate and the polar functional groups at the nucleus are isocyanates.
Claim 50
Dependent Claim
25 words
The process of claim 26 wherein the derivatization agent is a dicarboxylic acid dihalide and the polar functional groups at the nucleus are carbonyl halides.
Claim 51
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is a dialdehyde and the polar functional groups at the nucleus are aldehydes.
Claim 52
Dependent Claim
22 words
The process of claim 26 wherein the derivatization agent is a bishaloformate and the polar functional groups at the nucleus are haloformates.
Claim 53
Dependent Claim
23 words
The process of claim 26 wherein the derivatization agent is a disulfonyl halide and the polar functional at the nucleus are sulfonyl halides.
References Cited (Backward Citations)
US3280084A
Cited
US3644322A
Cited
US3755283A
Cited
US3786116A
Cited
US3985830A
Cited
US3985830B1
Cited
US4010226A
Cited
US4169115A
Cited
US4180530A
Cited
US4304886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |