Patent US3920714A successfully refreshed from Google Patents.
US3920714A
Expired / Lapsed
US
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Process for the production of polymeric hydrocarbons with reactive silyl side groups
Assignee: Individual
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Filing: 1974-03-19
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Granted: 1975-11-18
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Expires: 1994-03-19
Abstract
Abstract A process for the production of polymeric hydrocarbons having reactive silyl side groups, characterized in that cycloolefins which can be polymerized under ring opening, and which carry at least one reactive silyl group on the cycloolefin skeleton, are metathetically reacted either by themselves or with other cycloolefins which can be polymerized under ring opening and/or with hydrocarbon polymers having at least one unbranched double bond in the main chain, in the presence of metathetical catalyst.
Inventors
- 👤 Roland Streck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:07
CPC Classifications
C; C08; C08L; C08L65/00; C08C; C08C19/00; C08C19/28; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; C08L101/00; C08L101/02; C08L101/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
89 words
A PROCESS FOR PREPARING POLYMERIC HYDROCARBONS HAVING HYDROLYZABLE SIDE GROUPS NON-TEMINALLY SUBSTITUTED ALONG THE POLYMER BACKBONE, WHICH COMPRISES METATHETICALLY REACTING A. A SILYLCYCLOOLEFIN CAPABLE OF BEING POLYMERIZED UNDER RING OPENING ANDHAVING AT LEAST ONE HYDROLYZABLE SILYL GROUP SUBSTITUTED ON THE CYCLOOLEFIN SKELETON AT A CARBON ATOM OTHER THAN THE CARBON ATOMS FORMING THE OLEFINIC BOND WITH AT LEAST ONE OF B. A POLYMERIC HYDROCARBON HAVING AT LEAST ONE UNBRANCHED DOUBLE BOND IN THE POLYMER BACKBONE, OR C. A CYCLOOLEFINIC HYDROCARBON CAPABLE OF COPOLYMERIZATION UNDER RING OPENING WITH SAID SILYLCYCLOOLEFIN.
Claim 2
Dependent Claim
89 words
A PROCESS FOR PREPARING POLYMERIC HYDROCARBONS HAVING HYDROLYZABLE SIDE GROUPS NON-TEMINALLY SUBSTITUTED ALONG THE POLYMER BACKBONE, WHICH COMPRISES METATHETICALLY REACTING A. A SILYLCYCLOOLEFIN CAPABLE OF BEING POLYMERIZED UNDER RING OPENING ANDHAVING AT LEAST ONE HYDROLYZABLE SILYL GROUP SUBSTITUTED ON THE CYCLOOLEFIN SKELETON AT A CARBON ATOM OTHER THAN THE CARBON ATOMS FORMING THE OLEFINIC BOND WITH AT LEAST ONE OF B. A POLYMERIC HYDROCARBON HAVING AT LEAST ONE UNBRANCHED DOUBLE BOND IN THE POLYMER BACKBONE, OR C. A CYCLOOLEFINIC HYDROCARBON CAPABLE OF COPOLYMERIZATION UNDER RING OPENING WITH SAID SILYLCYCLOOLEFIN.
Claim 3
Dependent Claim
20 words
A process according to claim 1, wherein the reaction is conducted at a temperature between about -50* and + 80*C.
Claim 4
Dependent Claim
15 words
A process according to claim 1, wherein the hydrolyzable silyl group is a halogen atom.
Claim 5
Dependent Claim
12 words
A process according to claim 3, wherein the halogen atom is chlorine.
Claim 6
Dependent Claim
19 words
A process according to claim 1, wherein the hydrolyzable silyl group is an alkoxy, carboxy or a ketoxime group.
Claim 7
Dependent Claim
25 words
A process according to claim 5, conducted in the presence of sufficient Lewis acid to compensate for the electron donor function of the hydrolyzable group.
Claim 8
Dependent Claim
19 words
A process according to claim 6, wherein about 1-1.5 mol of Lewis acid is employed per mol of silicone.
Claim 9
Dependent Claim
17 words
A process according to claim 7, wherein the Lewis acid is a component of the metathetical catalyst.
Claim 10
Dependent Claim
22 words
A process according to claim 8, wherein an alkyl aluminum, alkyl aluminum halide or aluminum halide is employed as the Lewis acid.
Claim 11
Dependent Claim
19 words
A process according to claim 1, wherein 0.5-5 mol percent of silycycloolefin is employed per 1 mol of hydrocarbon.
Claim 12
Dependent Claim
19 words
A process according to claim 1, wherein 5-20 mol percent of silylcycloolefin is employed per 1 mol of hydrocarbon.
References Cited (Backward Citations)
US2420912A
Cited
US2532583A
Cited
US2894968A
Cited
US3125554A
Cited
US3322807A
Cited
US3631087A
Cited
US3694478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |