Patent US4332957A successfully refreshed from Google Patents.
US4332957A
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Phenoxyalkoxy silanes
Assignee: Millennium Petrochemicals Inc
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Filing: 1980-12-22
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Granted: 1982-06-01
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Expires: 2000-12-22
Abstract
Abstract Compositions of matter described as alkyl or alkenyl tris or tetrakis (phenoxyalkoxy) silanes are useful as tree retardant additives for polymeric insulation compositions. These silanes have the general formula: <IMAGE> wherein R is C1-C5 alkyl, C2-C4 alkenyl or <IMAGE> y is an integer of 1 to 5 and n is an integer of 1 to 4.
Inventors
- 👤 Harry Braus
- 👤 Anthony Barlow
- 👤 Melvin F. Maringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:31
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C07F7/08; C07F7/18; C07F7/1804; C08; C08K; C08K5/00; C08K5/54; C08K5/541; C08K5/5415
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
44 words
A composition of matter comprising a compound corresponding to the formula ##STR13## wherein R is C 1 -C 5 alkyl, C 2 -C 4 alkenyl or ##STR14## y is an integer of 1 to 5 and n is an integer of 1 to 4.
Claim 2
Dependent Claim
44 words
A composition of matter comprising a compound corresponding to the formula ##STR13## wherein R is C 1 -C 5 alkyl, C 2 -C 4 alkenyl or ##STR14## y is an integer of 1 to 5 and n is an integer of 1 to 4.
Claim 3
Dependent Claim
19 words
A composition of matter according to claim 1 wherein R is methyl, y is 1 and n is 2.
Claim 4
Dependent Claim
19 words
A composition of matter according to claim 1 wherein R is vinyl, y is 1 and n is 2.
Claim 5
Dependent Claim
19 words
A composition of matter according to claim 1 wherein R is ethyl, y is 1 and n is 2.
Claim 6
Dependent Claim
19 words
A composition of matter according to claim 1 wherein R is methyl, y is 1 and n is 3.
Claim 7
Dependent Claim
19 words
A composition of matter according to claim 1 wherein R is vinyl, y is 1 and n is 3.
Claim 8
Dependent Claim
18 words
A composition of matter according to claim 1 wherein R is ##STR15## y is 1 and n 2.
Claim 9
Dependent Claim
19 words
A composition of matter according to claim 1 wherein R is vinyl, y is 2 and n is 2.
Claim 10
Dependent Claim
19 words
A composition of matter according to claim 1 wherein R is vinyl, y is 3 and n is 2.
Claim 11
Dependent Claim
151 words
A process for preparing an organosilane corresponding to the formula ##STR16## wherein R is C 1 -C 5 alkyl, C 2 -C 4 alkenyl or ##STR17## y is an integer of 1 to 5 and n is an integer of 1 to 4 which comprises: (a) reacting together an alcohol having the formula: ##STR18## with a halosilane having the formula (C 1 -C 5 alkyl) Si X 3 when R is C 1 -C 5 alkyl, (C 2 -C 4 alkenyl) Si X 3 when R is C 2 -C 4 alkenyl or Si X 4 when R is ##STR19## wherein X is a halogen and n and y have the meanings given above in the presence of a hydrogen halide acceptor and an inert solvent, (b) separating the hydrogen halide acceptor containing hydrogen halide from the reaction mixture, (c) isolating a compound having the formula ##STR20## from the reaction mixture.
Claim 12
Dependent Claim
151 words
A process for preparing an organosilane corresponding to the formula ##STR16## wherein R is C 1 -C 5 alkyl, C 2 -C 4 alkenyl or ##STR17## y is an integer of 1 to 5 and n is an integer of 1 to 4 which comprises: (a) reacting together an alcohol having the formula: ##STR18## with a halosilane having the formula (C 1 -C 5 alkyl) Si X 3 when R is C 1 -C 5 alkyl, (C 2 -C 4 alkenyl) Si X 3 when R is C 2 -C 4 alkenyl or Si X 4 when R is ##STR19## wherein X is a halogen and n and y have the meanings given above in the presence of a hydrogen halide acceptor and an inert solvent, (b) separating the hydrogen halide acceptor containing hydrogen halide from the reaction mixture, (c) isolating a compound having the formula ##STR20## from the reaction mixture.
Claim 13
Dependent Claim
20 words
A process according to claim 10 wherein R is methyl, y is 1, n is 2 and X is chloride.
Claim 14
Dependent Claim
20 words
A process according to claim 10 wherein R is vinyl, y is 1, n is 2 and X is chloride.
Claim 15
Dependent Claim
20 words
A process according to claim 10 wherein R is vinyl, y is 2, n is 2 and X is chloride.
Claim 16
Dependent Claim
15 words
A process according to claim 10 wherein the hydrogen halide acceptor is pyridine or dimethylaniline.
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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) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |