Patent US4640868A successfully refreshed from Google Patents.
US4640868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clear, weather resistant adherent coating
Assignee: ATK Launch Systems LLC
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Filing: 1986-02-10
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Granted: 1987-02-03
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Expires: 2006-02-10
Abstract
Abstract A composition capable of providing, upon hydrolyzing and curing, a protective coating for substrates such as, for example, a plastic substrate having a vacuum metallized or vacuum sputtered surface comprises the reaction product of: (a) an isocyanurate polyisocyanate having the following formula: <IMAGE> wherein R4 is a substituted or unsubstituted aliphatic or cycloaliphatic group having from 1 to 12 carbon atoms or an aryl group and (b) an amino disilane having the formula: <IMAGE> wherein R is a lower alkyl having 1 to about 6 carbon atoms; R1 is a lower alkyl having 1 to about 4 carbon atoms; R2 and R3, which may be the same or different, are each substituted or unsubstituted alkylene radicals having 2 to 18 carbon atoms or arylene radicals having 6 to 18 carbon atoms; and a is an integer having values of 0 to 2, the protective coating adhering particularly well to such surfaces and having especially superior resistance to ultraviolet light, humidity, air and heat.
Inventors
- 👤 Howard I. Penn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:58
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/288; C08G18/289; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C08G18/791; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
128 words
A composition, upon hydrolysis and curing, providing a protective coating comprising the reaction product of: (a) an isocyanurate polyisocyanate having the following formula: ##STR7## wherein R 4 is a substituted or unsubstituted aliphatic or cycloaliphatic group having from 1 to 12 carbon atoms or an aryl group, and (b) an amino disilane having the formula: ##STR8## wherein R is a lower alkyl having 1 to about 6 carbon atoms; R 1 is a lower alkyl having 1 to about 4 carbon atoms; R 2 and R 3 , which may be the same or different, are each substituted or unsubstituted alkylene radicals having 2 to 18 carbon atoms or arylene radicals having 6 to 18 carbon atoms; and a is an integer having values of 0 to 2.
Claim 2
Dependent Claim
128 words
A composition, upon hydrolysis and curing, providing a protective coating comprising the reaction product of: (a) an isocyanurate polyisocyanate having the following formula: ##STR7## wherein R 4 is a substituted or unsubstituted aliphatic or cycloaliphatic group having from 1 to 12 carbon atoms or an aryl group, and (b) an amino disilane having the formula: ##STR8## wherein R is a lower alkyl having 1 to about 6 carbon atoms; R 1 is a lower alkyl having 1 to about 4 carbon atoms; R 2 and R 3 , which may be the same or different, are each substituted or unsubstituted alkylene radicals having 2 to 18 carbon atoms or arylene radicals having 6 to 18 carbon atoms; and a is an integer having values of 0 to 2.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein R 4 is an isophorone moiety.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein R 4 is a hexamethylene moiety.
Claim 5
Dependent Claim
9 words
The composition of claim 1 wherein a is zero.
Claim 6
Dependent Claim
9 words
The composition of claim 1 wherein R is methyl.
Claim 7
Dependent Claim
20 words
The composition of claim 1 wherein R is methyl, R 2 and R 3 are propyl and a is zero.
Claim 8
Dependent Claim
21 words
The composition of claim 1 wherein the isocyanurate polyisocyanate and the amino disilane are reacted in essentially a stoichiometric molar ratio.
Claim 9
Dependent Claim
24 words
A coated member comprising (a) a substrate and (b) a protective coating on said substrate comprising the hydrolyzed and cured composition of claim 1.
Claim 10
Dependent Claim
21 words
The coated member of claim 8 wherein the substrate comprises a plastic member having a vacuum metallized or vacuum sputtered surface.
Claim 11
Dependent Claim
16 words
The coated member of claim 9 wherein the vacuum metallized surface is opaquely deposited (vaporized) aluminum.
Claim 12
Dependent Claim
16 words
The coated member of claim 9 wherein the vacuum sputtered surface is translucent sputtered stainless steel.
Claim 13
Dependent Claim
15 words
The coated member of claim 9 wherein the vacuum sputtered surface is translucent sputtered titanium.
Claim 14
Dependent Claim
13 words
The coated member of claim 8 wherein R 4 is an isophorone moiety.
Claim 15
Dependent Claim
13 words
The coated member of claim 8 wherein R 4 is a hexamethylene moiety.
Claim 16
Dependent Claim
10 words
The coated member of claim 8 wherein a is zero.
Claim 17
Dependent Claim
10 words
The coated member of claim 8 wherein R is methyl.
Claim 18
Dependent Claim
21 words
The coated member of claim 8 wherein R is methyl, R 2 and R 3 are propyl and a is zero.
Claim 19
Dependent Claim
22 words
The coated member of claim 8 wherein the isocyanate polyisocyanate and the amino disilane are reacted in essentially a stoichiometric molar ratio.
Claim 20
Dependent Claim
14 words
The coated member of claim 9 wherein the vacuum sputtered surface is indium-tin oxide.
Claim 21
Dependent Claim
21 words
A reflector for increasing the amount of useful light delivered from a fluorescent lamp, comprising the coated member of claim 9.
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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) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |