US3994947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fulvene-silane adduct and ethylene interpolymers embodying same
Assignee: DSM Copolymer Inc
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Filing: 1975-02-10
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Granted: 1976-11-30
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Expires: 1995-02-10
Abstract
Abstract An adduct of a fulvene and unsaturated silane produced in a Diels-Alder reaction and the interpolymerization of the adduct with ethylene, with or without propylene, with or without a polyene, in the preparation of ethylene interpolymers.
Inventors
- 👤 William C. Bond, Jr.
- 👤 Harold J. Wahlborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:38
CPC Classifications
C; C08; C08L; C08L43/00; C08L43/04; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; C07F7/12; C08F; C08F210/00; C08F210/16; C08F210/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
49 words
The compound having the general formula ##SPC4## in which R is selected from the group consisting of hydrogen, a lower alkyl group, a halogen substituted lower alkyl group, and an unsaturated aliphatic group, X is a highly hydrolyzable group, and n is a number of from 1 to 3.
Claim 2
Dependent Claim
49 words
The compound having the general formula ##SPC4## in which R is selected from the group consisting of hydrogen, a lower alkyl group, a halogen substituted lower alkyl group, and an unsaturated aliphatic group, X is a highly hydrolyzable group, and n is a number of from 1 to 3.
Claim 3
Dependent Claim
23 words
The compound as claimed in claim 1 in which the R groups attached to the double bond in the 7 position are methyl.
Claim 4
Dependent Claim
16 words
The compound as claimed in claim 1 in which X is chlorine and n is 1.
Claim 5
Dependent Claim
3 words
The adduct 7-isopropylidenyl-5-trichlorosilyl-2-norbornene.
Claim 6
Dependent Claim
3 words
The adduct 7-isopropylidenyl-5-trichlorosilyl-2-norbornene.
Claim 7
Independent Claim
14 words
The method of producing the adduct 7-isopropylidenyl-5-trichlorosilyl-2-norbornene comprising reacting dimethyl fulvene with vinyl trichlorosilane.
Claim 8
Independent Claim
14 words
The method of producing the adduct 7-isopropylidenyl-5-trichlorosilyl-2-norbornene comprising reacting dimethyl fulvene with vinyl trichlorosilane.
Claim 9
Dependent Claim
26 words
The compound as claimed in claim 1 in which the highly hydrolyzable group is selected from the group consisting of a tertiary amine and a halogen.
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) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |