US3832423A
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Chemically joined, phase separated graft copolymers having hydrocarbon polymeric backbones
Assignee: Unilever Bestfoods North America
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Filing: 1972-04-14
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Granted: 1974-08-27
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Expires: 1992-04-14
Abstract
Abstract The present invention relates to thermoplastic graft copolymers comprised of copolymeric backbones containing a plurality of uninterrupted repeating units of the 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.
Inventors
- 👤 R Milkovich
- 👤 M Chiang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:58
CPC Classifications
C; C08; C08F; C08F290/00; C08F290/02; C08F290/04; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44; C08G; C08G63/00; C08G63/02; C08G63/12; C08G85/00; Y; Y10; Y10S; Y10S525/00; Y10S525/91; Y10S525/911
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
13 words
The graft copolymer of claim 1, wherein said copolymerizable hydrocarbon monomer is ethylene.
Claim 2
Dependent Claim
105 words
the linear polymeric sidechains of the graft copolymer consist essentially of a polymerized macromolecular monomer, said macromolecular monomer comprising a linear polymer or copolymer having a molecular weight in the range of from about 5,000 to about 50,000 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 polymerizable moiety per linear polymer or copolymer chain, said polymerizable moIety being on the end of the chain, said copolymerization occurring between the polymerizable end group of said macromolecular monomer and said copolymerizable hydrocarbon monomer; and
Claim 3
Dependent Claim
167 words
at least one copolymerizable hydrocarbon monomer, said copolymerizable hydrocarbon monomers forming the polymeric backbone of said graft copolymer and said polymerizable macromolecular monomers forming the linear polymeric sidechains of said graft copolymer, and the linear polymeric sidechains of the graft copolymer are copolymerized into the backbone polymer through the polymerizable end group on said macromolecular monomer, and wherein said copolymerizable hydrocarbon monomers which form the copolymeric backbone are derived from a copolymerizable hydrocarbon monomer selected from the group consisting of ethylene, and comonomeric mixtures of ethylene and propylene, the linear polymeric or copolymeric sidechains of the graft copolyer which are copolymerized into the copolymeric backbone are separated by at least about 20 uninterrupted recurring monomeric units of said backbone polymer, the distribution and copolymerization of the sidechains along the backbone polymers being controlled by the relative reactivity ratios of the polymerizable end group on said macromolecular monomer and said copolymerizable hydrocarbon monomer; and b. recovering a chemically joined, phase separated thermoplastic graft copolymer obtained from said copolymerization.
Claim 4
Dependent Claim
27 words
the linear polymeric sidechains of said graft copolymer consist essentially of a polymerized macromolecular monomer, said macromolecular monomer comprising a linear polymer represented by the structural formula:
Claim 5
Dependent Claim
27 words
the linear polymeric sidechains of said graft terpolymer consist essentially of a polymerized macromolecular monomer, said macromolecular monomer comprising a linear polymer represented by the structural formula:
Claim 6
Dependent Claim
27 words
the linear polymeric sidechains of said graft copolymer consist essentially of a polymerized macromolecular monomer, said macromolecular monomer comprising a linear polymer represented by the structural formula:
Claim 7
Dependent Claim
61 words
the linear polymeric sidechains of the graft copolymer which are copolymerized into the copolymeric backbone are separated by at least about 20 uninterrupted recurring monomeric units of said backbone polymer, the distribution of the sidechains along the backbone and the copolymerization being controlled by the reactivity ratios of the polymerizable end group on said macromolecular monomer and said copolymerizable hydrocarbon monomer.
Claim 8
Dependent Claim
61 words
the linear polymeric sidechains of the graft terpolymer which are terpolymerized into the terpolymeric backbone are separated by at least about 20 uninterrupted recurring monomeric units of said backbone polymer, the distribution of the sidechains along the backbone and the copolymerization being controlled by the reactivity ratios of the polymerizable end group on said macromolecular monomer and said copolymerizable hydrocarbon monomer.
Claim 9
Dependent Claim
61 words
the linear polymeric sidechains of the graft terpolymer which are terpolymerized into the terpolymeric backbone are separated by at least about 20 uninterrupted recurring monomeric units of said backbone polymer, the distribution of the sidechains along the backbone and the copolymerization being controlled by the reactivity ratios of the polymerizable end group on said macromolecular monomer and said copolymerizable hydrocarbon monomer.
Claim 10
Dependent Claim
60 words
the linear polymeric sidechains of the graft copolymer are copolymerized into the copolymeric backbone and are separated by at least about 20 uninterrupted recurring monomeric units of said backbone polymer, the distribution of the sidechains along the backbone and the copolymerization being controlled by the reactivity ratios of the polymerizable end group on said macromolecular monomer and said copolymerizable comonomer.
Claim 11
Dependent Claim
19 words
The graft copolymer of claim 1, wherein said copolymerizable hydrocarbon monomer is a comonomeric mixture of ethylene and propylene.
Claim 12
Dependent Claim
25 words
The graft copolymer of claim 1, wherein up to 40 percent by weight of said polymerizable macromolecular monomer is copolymerized with said copolymerizable hydrocarbon monomer.
Claim 13
Dependent Claim
29 words
The graft copolymer of claim 1, wherein from about 5 percent to about 20 percent by weight of said polymerizable macromolecular monomer is copolymerized with said copolymerizable hydrocarbon monomer.
Claim 14
Dependent Claim
98 words
The graft copolymer of claim 1, wherein said polymerizable macromolecular monomer which is copolymerized with said copolymerizable hydrocarbon monomer is derived from a monofunctional polymerizable macromolecular monomer represented by the formula: R -2 -x wherein R is lower alkyl, Z is a repeating monomeric unit of a member selected from the group consisting of styrene, alpha(methylstyrene), isoprene, butadiene and mixtures thereof, n is a positive integer such that the molecular weight of the polymer is in the range of from about 5,000 to about 50,000, and x is a polymerizable end group selected from the group consisting of:
Claim 15
Dependent Claim
16 words
The graft copolymer of claim 1, wherein said macromolecular monomer is represented by the structural formula:
Claim 16
Dependent Claim
17 words
The graft copolymer of claim 1, wherein said polymerizable macromolecular monomer is represented by the structural formula:
Claim 17
Dependent Claim
29 words
The graft copolymer of claim 8, wherein the copolymerizable hydrocarbon monomer is a member selected from the group consisting of ethylene of ethylene and propylene and comonomeric mixtures thereof.
Claim 18
Dependent Claim
53 words
A chemically joined, phase separated thermoplastic graft copolymer of: a. a polymerizable macromolecular monomer having a substantially uniform molecular weight distribution, and b. a copolymerizable hydrocarbon monomer, said copolymerizable hydrocarbon monomer forming the polymeric backbone of said graft copolymer and said polymerizable macromolecular monomer forming linear polymeric sidechains of said graft copolymer, wherein:
Claim 19
Dependent Claim
40 words
The graft copolymer of claim 10, wherein said copolymer is comprised of a normally crystalline polymer of ethylene copolymerized with up to 40 percent by weight of said polymerizable macromolecular monomer, said graft copolymer being represented by the structural formula:
Claim 20
Dependent Claim
29 words
The graft copolymer of claim 10, wherein from about 5 percent to about 20 percent by weight of said polymerizable macromolecular monomer is copolymerized with said copolymerizable hydrocarbon monomer.
Claim 21
Dependent Claim
53 words
A chemically joined, phase separated thermoplastic graft terpolymer of: a. a polymerizable macromolecular monomer having a substantially uniform molecular weight distribution, and b. a copolymerizable hydrocarbon monomer, said copolymerizable hydrocarbon monomer forming the polymeric backbone of said graft terpolymer and said polymerizable macromolecular monomer forming linear polymeric sidechains of said graft terpolymer, wherein:
Claim 22
Dependent Claim
26 words
The graft terpolymer of claim 13, wherein up to 40 percent by weight of said polymerizable macromolecular monomer is copolymerized with said copolymerizable hydrocarbon comonomeric mixture.
Claim 23
Dependent Claim
53 words
A chemically joined, phase separated thermoplastic graft terpolymer of: a. a polymerizable macromolecular monomer having a substantially uniform molecular weight distribution, and b. a copolymerizable hydrocarbon monomer, said copolymerizable hydrocarbon monomer forming the polymeric backbone of said graft terpolymer and said polymerizable macromolecular monomer forming linear polymeric sidechains of said graft terpolymer, wherein:
Claim 24
Dependent Claim
25 words
The graft terpolymer of claim 15, wherein up to 40 percent by weight of said copolymerizable macromolecular monomer is terpolymerized with said copolymerizable comonomeric mixture.
Claim 25
Dependent Claim
31 words
A process for the preparation of a chemically joined, phase separated thermoplastic graft copolymer comprising: a. copolymerizing in the presence of a coordination catalyst in a hydrocarbon solvent a mixture of:
Claim 26
Dependent Claim
16 words
The process of claim 17, wherein said polymerizable macromolecular monomer is represented by the structural formula:
Claim 27
Dependent Claim
12 words
The process of claim 18, wherein said copolymerizable hydrocarbon monomer is ethylene.
Claim 28
Dependent Claim
18 words
The process of claim 18, wherein said copolymerizable hydrocarbon monomer is a comonomeric mixture of ethylene and propylene.
Claim 29
Dependent Claim
12 words
The process of claim 17, wherein said process is a batch process.
Claim 30
Dependent Claim
10 words
The process of claim 17, wherein said process is continuous.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |