Patent US3862267A successfully refreshed from Google Patents.
US3862267A
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Chemically joined, phase separated graft copolymers having diblock polymeric sidechains
Assignee: Unilever Bestfoods North America
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Filing: 1973-04-02
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Granted: 1975-01-21
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Expires: 1993-04-02
Abstract
Abstract The present invention relates to chemically joined, phase separated graft copolymers comprised of copolymeric backbones containing a plurality of uninterrupted repeating units of a backbone polymer and at least one integrally copolymerized moiety per backbone polymer chain having chemically bonded thereto a substantially linear polymer which forms a copolymerized sidechain to the backbone, wherein each of the polymeric sidechains has substantially the same molecular weight and each polymeric sidechain is chemically bonded to only one backbone polymer, and said polymeric sidechains are further characterized as having at least two polymeric segments in the form of a diblock or triblock polymer.
Inventors
- 👤 Ralph Milkovich
- 👤 Mutong T Chiang
- 👤 Gerald O Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:18
CPC Classifications
C; C08; C08G; C08G85/00; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44; C08F; C08F290/00; C08F290/02; C08F290/04; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/62; C08G18/6204
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
37 words
The graft copolymer of claim 1, wherein said polymerized monoalkenyl-substituted aromatic hydrocarbon is a polymer of styrene and said polymerized conjugated diene is a member selected from the group consisting of a polymer of butadiene and isoprene.
Claim 2
Dependent Claim
148 words
a polymerizable monofunctional macromolecular monomer comprising a linear copolymer having a molecular weight in the range of from about 5,000 to about 150,000 and having a substantially uniform molecular weight distribution such that its ratio of Mw/Mn is less than about 1.1, said macromolecular monomer being further characterized as having no more than one terminal vinyl moiety per linear copolymer chain, said linear copolymer being a diblock copolymer of the formula: A - B - X wherein A is a polymerized monoalkenyl-substituted aromatic hydrocarbon having a molecular weight in the range of from about 2,000 to about 65,000, B is a polymerized conjugated diene, having a molecular weight between about 1500 and 100, 000, and is a polymerizable end group containing a vinyl moiety; and b. copolymerizing said polymerizable monofunctional macromolecular monomer through its polymerizable end group with said polymerizable comonomer in the presence of a polymerization catalyst.
Claim 3
Dependent Claim
33 words
The graft copolymer of claim 1, wherein said polymerizable comonomer is an alpha-olefin of the formula: CH2 CHR wherein R is hydrogen, alkyl or aryl radicals containing one to about 16 carbon atoms.
Claim 4
Dependent Claim
11 words
The graft copolymer of claim 3, wherein said alpha-olefin is ethylene.
Claim 5
Dependent Claim
11 words
The graft copolymer of claim 3, wherein said alpha-olefin is propylene.
Claim 6
Dependent Claim
11 words
The graft copolymer of claim 3, wherein said alpha-olefin is styrene.
Claim 7
Dependent Claim
35 words
The graft copolymer of claim 3, wherein said polymerized monoalkenyl-substituted aromatic hydrocarbon is a polymer of styrene and said polymerized conjugated diene is a polymer of isoprene and said polymerizable end group is an alpha-olefin.
Claim 8
Dependent Claim
27 words
The graft copolymer of claim 7, wherein the polymerizable comonomer is selected from the group consisting of ethylenE, propylene, and a comonomeric mixture of ethylene and propylene.
Claim 9
Dependent Claim
57 words
The graft copolymer of claim 3, wherein said polymerized monoalkenyl-substituted aromatic hydrocarbon is a polymer of styrene, said polymerized conjugated diene is a polymer of isoprene and said polymerizable end group containing a vinyl moiety is a member selected from the group consisting of an acrylic acid ester, a methacrylic acid ester, and a maleic half ester.
Claim 10
Dependent Claim
12 words
The graft copolymer of claim 9, wherein the polymerizable comonomer is styrene.
Claim 11
Dependent Claim
31 words
The graft copolymer of claim 1, comprising 99% to about 5% by weight of said polymerizable comonomer and from about 1% to about 95% by weight of said polymerizable macromolecular monomer.
Claim 12
Dependent Claim
17 words
A process for the preparation of a chemically joined, phase separated thermoplastic graft copolymer comprising: a. admixing
Claim 13
Dependent Claim
32 words
The process of claim 12, wherein said polymerizable comonomer is an alpha-olefin of the formula: CH2 CHR wherein R is hydrogen, alkyl or aryl radicals containing one to about 16 carbon atoms.
Claim 14
Dependent Claim
26 words
The process of claim 12, wherein said polymerized monoalkenyl-substituted aromatic hydrocarbon is a polymer of styrene and said polymerized conjugated diene is a polymer of isoprene.
Claim 15
Dependent Claim
33 words
The process of claim 14, wherein said polymerizable end group containing a vinyl moiety is a member selected from the group consisting of an ester of acrylic acid, methyacrylic acid, and maleic acid.
Claim 16
Dependent Claim
17 words
The process of claim 14, wherein the polymerizable end group containing a vinyl moiety is an alpha-olefin.
Claim 17
Dependent Claim
29 words
The process of claim 16, wherein the polymerizable comonomer is a member selected from the group consisting of ethylene, propylene, a comonomeric mixture of ethylene and propylene, and styrene.
Claim 18
Dependent Claim
35 words
The process of claim 12, wherein from about 99% to about 5% by weight of said polymerizable comonomer is copolymerized with from about 1% to about 95% by weight of said polymerizable monofunctional macromolecular monomer.
Claim 19
Dependent Claim
143 words
A chemically joined, phase separated thermoplastic graft copolymer of: a. a polymerizable comonomer selected from the group consisting of alpha-olefins of the formula: CH2 CHR wherein R is hydrogen, alkyl or aryl radicals containing one to about 16 carbon atoms, and copolymerized with b. a polymerizable monofunctional macromolecular monomer comprising a linear copolymer having a molecular weight in the range of from about 5,000 to about 150,000 and having a substantially uniform molecular weight distribution such that its ratio of Mw/Mn is less than about 1.1, said macromolecular monomer being further characterized as having no more than one terminal vinyl moiety Per linear copolymer chain, said linear copolymer being a diblock copolymer of the formula: A -B -X wherein A is a polymerized monoalkenyl-substituted aromatic hydrocarbon, B is a polymerized conjugated diene, and X is a polymermizable end group containing a vinyl moiety.
Claim 20
Dependent Claim
55 words
The graft copolymer of claim 19, wherein said polymermized monoalkenyl-substituted aromatic hydrocarbon segment of said diblock copolymer has a molecular weight in the range of from about 2,000 to about 65,000 and said polymerized conjugated diene segment and said diblock copolymer has a molecular weight in the range of from about 1,500 to about 100,000.
Claim 21
Dependent Claim
54 words
The graft copolymer of claim 19, wherein said polymerized monoalkenyl-substituted aromatic hydrocarbon segment of said diblock copolymer has a molecular weight in the range of from about 5,000 to about 50,000 and said polymerized conjugated diene of said diblock copolymer has a molecular weight in the range of from about 5,000 to about 50,000.
Claim 22
Dependent Claim
37 words
The graft copolymer of claim 19, wherein said polymerized monoalkenyl-substituted aromatic hydrocarbon of said diblock copolymer is a polymer of styrene and said polymerized conjugated diene of said diblock copolymer is a polymer of butadiene or isoprene.
Claim 23
Dependent Claim
15 words
The graft copolymer of claim 19, wherein said diblock copolymer is represented by the formula:
Claim 24
Dependent Claim
59 words
The graft copolymer of claim 23, wherein n is a positive integer such that the molecular weight of the polystyrene segment is in the range of from about 10,000 to about 35,000 and m is a positive integer such that the molecular weight of the predominantly cis-polyisoprene segment is in the range of from about 7,000 to about 35,000.
Claim 25
Dependent Claim
15 words
The graft copolymer of claim 19, wherein said diblock copolymer is represented by the formula:
Claim 26
Dependent Claim
59 words
The graft copolymer of claim 25, wherein n is a positive integer such that the molecular weight of the polystyrene segment is in the range of from about 5,000 to about 50,000 and m is a positive integer such that the molecular weight of the predominantly cis-polyisoprene segment is in the range of from about 5,000 to about 50,000.
Claim 27
Dependent Claim
59 words
The graft copolymer of claim 25, wherein n is a positive integer such that the molecular weight of the polystyrene segment is in the range of from about 10,000 to about 35,000 and m is a positive integer such that the molecular weight of the predominantly cis-polyisoprene segment is in the range of from about 7,000 to about 35,000.
Claim 28
Dependent Claim
11 words
The graft copolymer of claim 19, wherein said alpha-olefin is ethylene.
Claim 29
Dependent Claim
11 words
The graft copolymer of claim 19, wherein said alpha-olefin is propylene.
Claim 30
Dependent Claim
11 words
The graft copolymer of claim 25, wherein said alpha-olefin is styrene.
Claim 31
Dependent Claim
105 words
A chemically joined, phase separated thermoplastic graft copolymer of: a. styrene, and copolymerized with b. a diblock polymerizable monofunctional macromolecular monomer of the formula: A-B-X wherein A is a polymerized monoalkenyl-substituted aromatic hydrocarbon having a molecular weight in the range of from about 2,000 to about 65,000, B is a polymerized conjugated diene having a molecular weight in the range of from about 1, 500 to about 100,000, and X is a polymerizable end group containing a vinyl moiety, said polymerizable diblock macromolecular monomer being characterized as having a substantially uniform molecular weight distribution such that its ratio of Mw/Mn is less than about 1.1.
Claim 32
Dependent Claim
20 words
The graft copolymer of claim 31, wherein said polymerizable diblock monofunctional macromolecular monomer is a compound represented by the formula:
Claim 33
Dependent Claim
42 words
The graft copolymer of claim 32, wherein n is a positive integer such that the molecular weight of the polystyrene segment is about 10,000 and m is a positive integer such that the molecular weight of the predominantly cis-polyisoprene is about 25,000.
Claim 34
Dependent Claim
25 words
The graft copolymer of claim 33, wherein from about 2% to about 40% by weight of said polymerizable diblock macromolecular monomer is copolymerized with styrene.
Claim 35
Dependent Claim
115 words
A chemically joined, phase separated thermoplastic graft copolymer of: a. a polymerizable comonomer selected from the group consisting of ethylene and propylene, and copolymerized with b. a polymerizable monofunctional macromolecular monomer of the formula: A-B-X wherein A is a polymerized monoalkenyl-substituted aromatic hydrocarbon having a molecular weight in the range of from about 2,000 to about 65,000, B is a polymerized conjugated diene having a molecular weight in the range of from about 1, 500 to about 100,000, and X is a polymerizable end group containing a vinyl moiety, said polymerizable diblock macromolecular monomer being characterized as having a substantially uniform molecular weight distribution such that its ratio of Mw/Mn is less than about 1.1.
Claim 36
Dependent Claim
18 words
The graft copolymer of claim 35, wherein said polymerizable diblock monofunctional macromolecular monomer is represented by the formula:
Claim 37
Dependent Claim
25 words
The graft copolymer of claim 36, wherein up to about 60% by weight of said polymerizable diblock macromolecular monomer is copolymerized with said polymerizable conomomer.
Claim 38
Dependent Claim
12 words
The graft copolymer of claim 37, wherein said polymerizable comonomer is ethylene.
Claim 39
Dependent Claim
18 words
The graft copolymer of claim 35, wherein said polymerizable comonomer is a comonomeric mixture of ethylene and propylene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |