US4800122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siloxane-based tintable coating
Assignee: Gentex Optics Inc
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Filing: 1987-09-22
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Granted: 1989-01-24
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Expires: 2007-09-22
Abstract
Abstract An abrasion-resistant coating composition for use on transparent plastic substrates and the like is formed from a first component derived by partial hydrolysis from a hydrolyzable epoxysilane and a second component comprising the reaction product of a non-silane-based aliphatic polyamine and a ketone or aldehyde. The two components are mixed to allow regenerated amino groups of the first component to react with the epoxy groups of the second component to form a partially polymerized mixture which is diluted with a solvent and applied to the substrate and heated to complete the curing process.
Inventors
- 👤 Robert A. Sallavanti
- 👤 Jeffrey L. Dalton
- 👤 Sharon M. Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:43
CPC Classifications
C; C09; C09D; C09D4/00; C09D183/00; C09D183/04; C09D183/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
49 words
An abrasion-resistant coating composition comprising a first component derived by partial hydrolysis from a hydrolyzable epoxysilane, said epoxysilane being at least about 40% hydrolyzed, and a second component derived by reaction of a non-silane-based aliphatic polyamine with a carbonyl-containing compound selected from the group consisting of ketones and aldehydes.
Claim 2
Dependent Claim
49 words
An abrasion-resistant coating composition comprising a first component derived by partial hydrolysis from a hydrolyzable epoxysilane, said epoxysilane being at least about 40% hydrolyzed, and a second component derived by reaction of a non-silane-based aliphatic polyamine with a carbonyl-containing compound selected from the group consisting of ketones and aldehydes.
Claim 3
Dependent Claim
17 words
A composition as in claim 1 in which said polyamine contains at least two primary amino groups.
Claim 4
Dependent Claim
54 words
A composition as in claim 1 in which said polyamine is a compound of the formula ##STR11## in which each R is independently hydrogen, a univalent aliphatic hydrocarbon radical or ##STR12## where each R 1 is independently hydrogen or a univalent aliphatic hydrocarbon radical; and each A is independently a bivalent aliphatic hydrocarbon radical.
Claim 5
Dependent Claim
35 words
A composition as in claim 1 in which said polyamine is a compound of the formula ##STR13## in which m is a positive integer and each A is an independently a bivalent aliphatic hydrocarbon radical.
Claim 6
Dependent Claim
11 words
A composition as in claim 3 in which A is alkylene.
Claim 7
Dependent Claim
21 words
A composition as in claim 3 in which A is --(CH 2 ) n --, where n is a positive integer.
Claim 8
Dependent Claim
11 words
A composition as in claim 4 in which A is ethylene.
Claim 9
Dependent Claim
14 words
A composition as in claim 4 in which m is between 1 and 3.
Claim 10
Dependent Claim
15 words
A composition as in claim 1 in which said polyamine is ethylenediamine, diethylenetriamine or triethylenetetramine.
Claim 11
Dependent Claim
12 words
A composition as in claim 1 in which said polyamine is ethylenediamine.
Claim 12
Dependent Claim
12 words
A composition as in claim 1 in which said polyamine is diethylenetriamine.
Claim 13
Dependent Claim
12 words
A composition as in claim 1 in which said polyamine is triethylenetetramine.
Claim 14
Dependent Claim
14 words
A composition as in claim 1 in which said carbonyl-containing compound is a ketone.
Claim 15
Dependent Claim
15 words
A composition as in claim 1 in which said carbonyl-containing compound is an aliphatic ketone.
Claim 16
Dependent Claim
14 words
A composition as in claim 1 in which said carbonyl-containing compound is diacetone alcohol.
Claim 17
Dependent Claim
13 words
A composition as in claim 1 in which said epoxysilane is a glycidoxyalkyltrialkoxysilane.
Claim 18
Dependent Claim
12 words
A composition as in claim 1 in which said epoxysilane is γ-glycidoxypropyltrimethoxysilane.
Claim 19
Independent Claim
51 words
A method of forming an abrasion-resistant coating on a substrate including the steps of mixing a partially hydrolyzed epoxysilane with the reaction product of a non-silane-based aliphatic polyamine and a ketone or aldehyde, said epoxysilane being at least about 40% hydrolyzed, and applying said mixture to the surface of said substrate.
Claim 20
Independent Claim
51 words
A method of forming an abrasion-resistant coating on a substrate including the steps of mixing a partially hydrolyzed epoxysilane with the reaction product of a non-silane-based aliphatic polyamine and a ketone or aldehyde, said epoxysilane being at least about 40% hydrolyzed, and applying said mixture to the surface of said substrate.
Claim 21
Dependent Claim
18 words
A method as in claim 18 in which said mixture is applied while dissolved in an organic solvent.
Claim 22
Dependent Claim
30 words
A method as in claim 18 in which said mixture contains a sufficient amount of said reaction product to react with the majority of the epoxy groups of said epoxysilane.
Claim 23
Dependent Claim
49 words
An article of manufacture comprising a substrate and an abrasion-resistant coating thereon comprising the reaction product of a first reactant comprising a partially hydrolyzed epoxysilane, said epoxysilane being at least about 40% hydrolyzed, and a second reactant derived by reacting a non-silane-based aliphatic polyamine with a ketone or aldehyde.
Claim 24
Dependent Claim
49 words
An article of manufacture comprising a substrate and an abrasion-resistant coating thereon comprising the reaction product of a first reactant comprising a partially hydrolyzed epoxysilane, said epoxysilane being at least about 40% hydrolyzed, and a second reactant derived by reacting a non-silane-based aliphatic polyamine with a ketone or aldehyde.
Claim 25
Dependent Claim
13 words
An article as in claim 21 in which said substrate is optically transparent.
Claim 26
Dependent Claim
14 words
An article as in claim 21 in which said substrate is an optical substrate.
Claim 27
Dependent Claim
15 words
An article as in claim 21 in which said substrate comprises an organic plastic material.
Claim 28
Dependent Claim
12 words
An article as in claim 21 in which said substrate comprises polycarbonate.
Claim 29
Dependent Claim
17 words
An article as in claim 21 in which said polyamine contains at least two primary amino groups.
Claim 30
Dependent Claim
34 words
An article as in claim 21 in which said polyamine is a compound of the formula ##STR14## in which m is a positive integer and each A is independently a bivalent aliphatic hydrocarbon radical.
Claim 31
Dependent Claim
15 words
An article as in claim 21 in which said polyamine is ethylenediamine, diethylenetriamine or triethylenetetramine.
Claim 32
Dependent Claim
18 words
A composition as in claim 1 in which said epoxysilane is between about 70% and about 95% hydrolyzed.
Claim 33
Dependent Claim
26 words
A composition as in claim 1 containing a sufficient amount of said second component to react with the majority of the epoxy groups of said epoxysilane.
Claim 34
Dependent Claim
23 words
An article as in claim 21 in which said second reactant has reacted with the majority of the epoxy groups of said epoxysilane.
Claim 35
Dependent Claim
12 words
An article produced by the method of claim 18, 19 or 20.
Claim 36
Dependent Claim
54 words
An article as in claim 21 in which said polyamine is a compound of the formula ##STR15## in which each R is independently hydrogen, a univalent aliphatic hydrocarbon radical or ##STR16## where each R 1 is independently hydrogen or a univalent aliphatic hydrocarbon radical; and each A is independently a bivalent aliphatic hydrocarbon radical.
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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) | 1992-01-24 | 1992-07-25 | 1993-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-24 | 1996-07-25 | 1997-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-24 | 2000-07-25 | 2001-01-24 | $7700.00 | Window Closed / Lapsed |