Patent US4367313A successfully refreshed from Google Patents.
US4367313A
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US
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Coating composition and method
Assignee: Essex Chemical Corp
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Filing: 1981-06-10
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Granted: 1983-01-04
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Expires: 2001-06-10
Abstract
Abstract What are disclosed are a "one pot" moisture-curable two-component coating composition comprising a first component having at least one isocyanate group and at least one hydrolyzable alkoxysilane group therein and a second component having at least one oxazolidine group therein, methods of forming a tenacious coating therewith on non-porous substrates such as glass and of further applying a resinous sealant composition over such a tenacious coating used as a primer, and coated substrates having such a tenacious coating thereon without or with a further resinous sealant composition.
Inventors
- 👤 Sidky D. Rizk
- 👤 Navinchandra B. Shah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:46
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/71; C08G18/718; C08G18/08; C08G18/10; C08G18/28; C08G18/30; C08G18/32; C08G18/3271; C08G18/3296; C08G18/40; C08G18/62; C08G18/6283
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
A "one-pot" moisture-curable coating composition comprising a first component having at least one isocyanate group and at least one hydrolyzable alkoxysilane group therein, and a second component which is a polymer having a plurality of oxazolidine groups therein, said first component being the reaction product of a polyol having an average of n hydroxy groups per molecule, where n is at least two, with an isocyanato functional alkoxysilane having from 1 to 3 hydrolyzable alkoxy groups therein and with an organic polyisocyanate.
Claim 2
Dependent Claim
82 words
A "one-pot" moisture-curable coating composition comprising a first component having at least one isocyanate group and at least one hydrolyzable alkoxysilane group therein, and a second component which is a polymer having a plurality of oxazolidine groups therein, said first component being the reaction product of a polyol having an average of n hydroxy groups per molecule, where n is at least two, with an isocyanato functional alkoxysilane having from 1 to 3 hydrolyzable alkoxy groups therein and with an organic polyisocyanate.
Claim 3
Dependent Claim
37 words
A coating composition as in claim 1 wherein approximately (n-1) hydroxy groups of said polyol are reacted with said isocyanato functional alkoxysilane and wherein the other hydroxy groups in said polyol are reacted with said organic polyisocyanate.
Claim 4
Dependent Claim
28 words
A coating composition as in claim 1 wherein said polymer having a plurality of oxazolidine groups therein is a polymer or copolymer of an oxazolidinylalkyl acrylate or methacrylate.
Claim 5
Dependent Claim
14 words
A composition as in claim 1 wherein said polyol is a linear polyether polyol.
Claim 6
Dependent Claim
13 words
A composition as in claim 1 wherein said polyol is a polyester polyol.
Claim 7
Dependent Claim
53 words
A composition as in claim 1 wherein said alkoxysilane has the formula OCH--R--Si(X).sub.m (R').sub.3-m wherein R is a divalent organic group, R' is hydrogen or alkyl having 1 to 4 carbon atoms, X is a hydrolyzable alkoxy group having 1 to 4 carbon atoms, and m is an integer from 1 to 3.
Claim 8
Dependent Claim
13 words
A composition as in claim 6 wherein said alkoxysilane is a gamma-isocyanatopropyl trialkoxysilane.
Claim 9
Dependent Claim
31 words
A composition as in claim 1 wherein said polyisocyanate is prepared by cyclizing isophorone diisocyanate to form a polyisocyanate containing an isocyanurate ring and having a functionality between 3 and 4.
Claim 10
Dependent Claim
49 words
A composition as in claim 1 wherein said polymer having a plurality of oxazolidine groups is a copolymer of 2-(1,3-oxazolidin-3-yl)ethyl methacrylate and at least one member selected from the group consisting of alkyl acrylates and alkyl methacrylates having from 1 to 18 carbon atoms in the alkyl portion thereof.
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) | 1986-01-03 | 1986-07-05 | 1987-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-03 | 1990-07-05 | 1991-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-03 | 1994-07-05 | 1995-01-04 | $7700.00 | Window Closed / Lapsed |