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US4902368A
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Vibration-damping substituted aromatic silane compounds and damping method employing same
Assignee: Raytheon Co
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Filing: 1988-07-13
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Granted: 1990-02-20
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Expires: 2008-07-13
Abstract
Abstract A method for damping vibration between two bodies comprising providing a layer of a selected material between opposing surfaces of the bodies wherein said material comprises a cured polymer of a compound having the formula ##STR1## where: R 1 is selected from the group consisting of: (a) an aliphatic hydrocarbon group containing 2 to 10 carbon atoms, and (b) a group having the formula ##STR2## where n=1 to 3 m=0 to 5 R 2 and R 2 ' are each selected from the group consisting of an alkyl group containing 1 to 4 carbon atoms, an unsubstituted aryl group, and a substituted aryl group; and R 3 is: ##STR3##
Inventors
- 👤 Susan L. Oldham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:50
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/30; C08G59/306; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C07F7/0812; C08F; C08F30/00; C08F30/04; C08F30/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
127 words
A method for reducing the transmission of vibratory motion between a first body and a second body having opposing surfaces comprising providing a layer of a selected material between said opposing surfaces of said first body and said second body wherein said material comprises a cured polymer of a compound having the formula ##STR18## where: R 1 is selected from the group consisting of: (a) an aliphatic hydrocarbon group containing 2 to 10 carbon atoms, and (b) a group having the formula ##STR19## where n=1 to 3 m=0 to 5 R 2 and R 2 ' are each selected from the group consisting of an alkyl group containing 1 to 4 carbon atoms, an unsubstituted aryl group, and a substituted aryl group; and R 3 is: ##STR20##
Claim 2
Independent Claim
127 words
A method for reducing the transmission of vibratory motion between a first body and a second body having opposing surfaces comprising providing a layer of a selected material between said opposing surfaces of said first body and said second body wherein said material comprises a cured polymer of a compound having the formula ##STR18## where: R 1 is selected from the group consisting of: (a) an aliphatic hydrocarbon group containing 2 to 10 carbon atoms, and (b) a group having the formula ##STR19## where n=1 to 3 m=0 to 5 R 2 and R 2 ' are each selected from the group consisting of an alkyl group containing 1 to 4 carbon atoms, an unsubstituted aryl group, and a substituted aryl group; and R 3 is: ##STR20##
Claim 3
Dependent Claim
31 words
The method set forth in claim 1 wherein said material is provided as a constrained layer comprising: (a) a first support member; (b) said material; and (c) a second support member.
Claim 4
Dependent Claim
16 words
The method set forth in claim 1 wherein said material is provided as a free-standing film.
Claim 5
Dependent Claim
24 words
The method set forth in claim 1 wherein said material is provided as a coating formed on at least one of said opposing surfaces.
Claim 6
Dependent Claim
30 words
The method set forth in claim 1 wherein: R 1 is --(CH 2 ) 8 -- R 2 is --CH 3 , and R 2 ' is --CH 3 .
Claim 7
Dependent Claim
16 words
The method set forth in claim 5 wherein said compound is cured with an aliphatic amine.
Claim 8
Dependent Claim
16 words
The method set forth in claim 1 wherein said compound is copolymerized with a chosen monomer.
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) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |