US4988778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamine-functional silane resin
Assignee: PPG Industries Inc
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Filing: 1990-01-18
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Granted: 1991-01-29
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Expires: 2010-01-18
Abstract
Abstract Disclosed herein are organosilane resins which are derived from an aminoalkoxysilane and hydroxy- and amine-functional compound; said resins are useful in curable compositions containing epoxy materials.
Inventors
- 👤 Wen-Hsuan Chang
- 👤 J. Alden Erikson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:11
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/48; C08G77/54; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/64; C08G18/6469; C08L; C08L63/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
20 words
A stable polyamine-functional silane resin which is prepared by reacting: (i) an aminoalkoxysilane and (ii) a hydroxy- and amine-functional compound.
Claim 2
Dependent Claim
20 words
A stable polyamine-functional silane resin which is prepared by reacting: (i) an aminoalkoxysilane and (ii) a hydroxy- and amine-functional compound.
Claim 3
Dependent Claim
106 words
The silane resin of claim 1 wherein the aminoalkoxysilane is of the formula: RNHR.sup.1 Si(R.sup.2).sub.m (OR.sup.3).sub.n wherein R is hydrogen, an alkyl group with no more than four carbon atoms, an aminoalkyl group, alkylaminoalkyl group or alkoxysilano alkyl group with no more than 6 carbon atoms in the alkyl group; R 1 is an alkylene having 1 to 6 carbon atoms, cycloalkylene or aryl group; R 2 is an alkyl having 1 to 10 carbon atoms, cycloalkyl or aryl group; R 3 is an lower alkyl group having 1 to about 4 carbon atoms; m is 0 or 1; n is 3 to 2; and m+n=3.
Claim 4
Dependent Claim
18 words
The silane resin of claim 2 wherein the aminoalkoxysilane is aminoethyltrimethoxysilane, aminopropyltrimethoxysilane, aminopropyltriethoxysilane, aminopropyldimethoxymethylsilane, aminopropyldiethoxymethylsilane, aminoethyl-gamma-aminopropyltrimethoxysilane, or iminobis(propyltrimethoxysilane).
Claim 5
Dependent Claim
26 words
The silane resin of claim 1 wherein the hydroxy and amine functional compound is an amino alcohol, amino polyalcohol, a polyamino alcohol or a polyamino polyalcohol.
Claim 6
Dependent Claim
16 words
The silane resin of claim 4 wherein the hydroxy and amino-functional compound is a polyhydroxy amine.
Claim 7
Dependent Claim
21 words
The silane resin of claim 4 wherein the hydroxy and amine-functional compound is diisopropanolamine, diethanolamine, diisobutanolamine, ethanolamine, isopropanolamine, N-aminoethyl-ethanolamine or N-aminopropyl-diethanolamine.
Claim 8
Dependent Claim
35 words
A curable composition comprising: (i) the reaction product of claim 1 and (ii) a curable material containing a functional group which is an epoxy group, an acrylic group, an isocyanate group or a mixture thereof.
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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) | 1994-01-28 | 1994-07-30 | 1995-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-28 | 1998-07-30 | 1999-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-28 | 2002-07-30 | 2003-01-29 | $7700.00 | Window Closed / Lapsed |