US4026865A
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Preparation of organometal terminated polymers
Assignee: Phillips Petroleum Co
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Filing: 1976-01-19
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Granted: 1977-05-31
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Expires: 1996-01-19
Abstract
Abstract Alkali metal or alkaline earth metal terminated rubbery polymers are reacted with monofunctional hydrocarbyl organometal compounds in which the metal is selected from Groups 2b, 4a, and 5a and which contain either halogen, --OR, --SR, or --N(R) 2 . The resulting rubbery polymers have improved physical properties in gum or filled stocks.
Inventors
- 👤 Carl A. Uraneck
- 👤 Richard L. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:41
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
72 words
A polymer of a monomer selected from the group consisting of conjugated dienes and conjugated dienes in admixture with vinyl-substituted aromatic compounds, wherein said polymer contains at least one terminal R.sub.(z -1 ) MX-- group per polymer molecule, wherein R is a hydrocarbon radical containing up to 12 carbon atoms, M is a metal selected from Groups 2b, 4a, and 5a, and z is an integer equal to the valence of M.
Claim 2
Dependent Claim
72 words
A polymer of a monomer selected from the group consisting of conjugated dienes and conjugated dienes in admixture with vinyl-substituted aromatic compounds, wherein said polymer contains at least one terminal R.sub.(z -1 ) MX-- group per polymer molecule, wherein R is a hydrocarbon radical containing up to 12 carbon atoms, M is a metal selected from Groups 2b, 4a, and 5a, and z is an integer equal to the valence of M.
Claim 3
Dependent Claim
20 words
The polymer as defined in claim 1 wherein said M is zinc, cadmium, mercury, germanium, tin, lead, antimony, or bismuth.
Claim 4
Dependent Claim
38 words
The polymer as defined in claim 2 wherein said conjugated dienes contain 4 to 12 carbon atoms per molecule, said vinyl-substituted aromatic compound monomers contain 8 to 20 carbon atoms per molecule, and said polymers are substantially rubbery.
Claim 5
Dependent Claim
11 words
The polymer according to claim 3 wherein said M is tin.
Claim 6
Dependent Claim
17 words
The polymer according to claim 4 wherein said R is n-butyl, and said polymer is a polybutadiene.
Claim 7
Dependent Claim
21 words
The polymer according to claim 4 wherein said M is a member of said Group 4a and is germanium or lead.
Claim 8
Dependent Claim
20 words
The polymer according to claim 6 wherein said M is germanium and R is phenyl, and said polymer a polybutadiene.
Claim 9
Dependent Claim
18 words
The polymer according to claim 6 wherein M is lead, R is phenyl, and said polymer is polybutadiene.
Claim 10
Dependent Claim
22 words
The polymer according to claim 3 wherein said M is a metal of said Group 2b and is zinc, cadmium, or mercury.
Claim 11
Dependent Claim
21 words
The polymer according to claim 3 wherein said M is a member of said Group 5a and is antimony or bismuth.
Claim 12
Dependent Claim
12 words
The polymer as defined in claim 1 further compounded with a filler.
Claim 13
Dependent Claim
19 words
The polymer according to claim 11 wherein said M is zinc, cadmium, mercury, germanium, tin, lead, antimony, or bismuth.
Claim 14
Dependent Claim
24 words
The compounded polymer as defined in claim 12 wherein said filler constitutes about 0.5 to 400 parts by weight per 100 parts of rubber.
Claim 15
Dependent Claim
38 words
The filler as defined in claim 13 wherein said polymer is selected from the group consisting of carbon black, white carbon, titanium dioxide, zinc oxide, calcium carbonate, zinc sulfide, calcium silicate, hydrated alumina, calcined magnesia, clay, and mixtures.
Claim 16
Dependent Claim
11 words
The polymer according to claim 14 wherein said M is tin.
Claim 17
Dependent Claim
24 words
The polymer according to claim 15 wherein R is n-butyl, said polymer is polybutadiene, and said filler is a carbon black or hydrated silica.
Claim 18
Dependent Claim
21 words
The polymer according to claim 14 wherein said M is a member of said Group 4a and is germanium or lead.
Claim 19
Dependent Claim
25 words
The polymer according to claim 17 wherein said R is phenyl, said polymer is polybutadiene, and said filler is a carbon black or hydrated silica.
Claim 20
Dependent Claim
23 words
The polymer according to claim 14 wherein said M is a member metal of said Group 2b and is zinc, cadmium, or mercury.
Claim 21
Dependent Claim
21 words
The polymer according to claim 14 wherein said M is a member of said Group 5a and is antimony or bismuth.
References Cited (Backward Citations)
GB992210A
Cited
DE1451554A1
Cited
US3704286A
Cited
US3674753A
Cited
US3692874A
Cited
US3845030A
Cited
US3956232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |