US4567239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of terminally functional polymers
Assignee: Lyondell Chemical Technology LP
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Filing: 1984-06-15
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Granted: 1986-01-28
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Expires: 2004-06-15
Abstract
Abstract The alkyllithium initiated preparation of terminally functional polymers in high yield is accomplished by first capping a macromolecular polymer with an alkylene sulfide prior to terminating the molecule with a halogenated compound containing a polymerizable moiety. The resulting macromolecular monomers are useful in the preparation of graft copolymers by copolymerizing the macromolecular monomers with monomers copolymerizable therewith.
Inventors
- 👤 Paul A. Mancinelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:43
CPC Classifications
C; C08; C08F; C08F293/00; Y; Y10; Y10S; Y10S525/00; Y10S525/91
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
116 words
Copolymer formed by copolymerizing (a) from 1 to 95% by weight of a macromolecular monomer having the general formula ##STR3## where A is the alkyl portion of an alkyllithium initiator, Z is a repeating monomeric unit of a monomer susceptible to anionic polymerizaton, n is a positive integer from 3 to 1500, R is either hydrogen, C 1 -C 10 alkyl, or phenyl, x is a positive integer of at least 1, and R' is a radical formed by removal of halogen from a halogenated compound containing a moiety polymerizable by free-radical, cationic, or anionic initiators and (b) 99 to 5% by weight of a monomer or monomers copolymerizable therewith by free-radical, cationic, or anionic initiation.
Claim 2
Dependent Claim
116 words
Copolymer formed by copolymerizing (a) from 1 to 95% by weight of a macromolecular monomer having the general formula ##STR3## where A is the alkyl portion of an alkyllithium initiator, Z is a repeating monomeric unit of a monomer susceptible to anionic polymerizaton, n is a positive integer from 3 to 1500, R is either hydrogen, C 1 -C 10 alkyl, or phenyl, x is a positive integer of at least 1, and R' is a radical formed by removal of halogen from a halogenated compound containing a moiety polymerizable by free-radical, cationic, or anionic initiators and (b) 99 to 5% by weight of a monomer or monomers copolymerizable therewith by free-radical, cationic, or anionic initiation.
Claim 3
Dependent Claim
24 words
The copolymer of claim 1 wherein the macromolecular monomer is a 5,000 molecular weight, epoxy terminated macromolecular monomer and said copolymerizable monomer is tetrahydrofuran.
Claim 4
Dependent Claim
26 words
The copolymer of claim 1 wherein said macromolecular monomer is a 13,000 molecular weight vinylphenyl terminated polystyrene macromolecular monomer and said copolymerizable monomer is n-butyl acrylate.
Claim 5
Dependent Claim
26 words
The copolymer of claim 1 wherein said copolymerizable monomer is selected from one or more monomers from the group consisting of acrylates, methacrylates, acrylonitriles, and styrene.
References Cited (Backward Citations)
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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) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |