Silane endcapped moisture curable compositions
First Claim
Patent Images
1. A moisture cureable polymer having a plurality of terminal or pendant groups of the formula:
-
thereon, whereR1 represents an alkyl group having 1 to 10 carbon atoms, optionally interupted with one or more ether oxygen atoms, or a group of the formula
R2 represents a C1 to C6 alkoxy group or a C6-C8 aryloxy group;
R3 represents an alkyl or an aryl group;
T represents a branched or cyclic alkylene radical of 4 to 10 carbons, which may be optionally interrupted by one or more ether oxygen atoms;
X is an alkylene group of 3-10 carbon atoms, which may be linear, branched or cyclic; and
a is 0, 1 or 2.
24 Assignments
0 Petitions
Accused Products
Abstract
Moisture curable polymers having terminal or pendant silyl groups of the formula:
where R1 represents an alkyl group having 1 to 10 carbon atoms, optionally interupted with one or more ether oxygen atoms, or a group of the formula
R2 represents a C1 to C6 alkoxy group or a C6-C8 aryloxy group;
R3 represents an alkyl or an aryl group;
T represents a branched or cyclic alkylene radical of 4 to 10 carbons, which may be optionally interrupted by one or more ether oxygen atoms;
X is an alkylene group of 3-10 carbon atoms, which may be linear, branched or cyclic;
and a is 0, 1 or 2, may be prepared by reacting (A) a compound having at least two isocyanate groups thereon with (B) a silane of formula (3):
Moisture cured sealant formulations formulated with the polymers exhibit improved thermal stability, elongation, and tear resistance.
-
Citations
23 Claims
-
1. A moisture cureable polymer having a plurality of terminal or pendant groups of the formula:
-
thereon, where R1 represents an alkyl group having 1 to 10 carbon atoms, optionally interupted with one or more ether oxygen atoms, or a group of the formula R2 represents a C1 to C6 alkoxy group or a C6-C8 aryloxy group;
R3 represents an alkyl or an aryl group;
T represents a branched or cyclic alkylene radical of 4 to 10 carbons, which may be optionally interrupted by one or more ether oxygen atoms;
X is an alkylene group of 3-10 carbon atoms, which may be linear, branched or cyclic; and
a is 0, 1 or 2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
or 1,4-diethylenephenylene;
-
-
3. A polymer as in claim 2 wherein R1 ethyl, R2 is methoxy, a is 0 or 1 and R3 is methyl.
-
4. A polymer as in claim 1 wherein R1 is methyl, ethyl, propoxyethyl, propyl, isopropyl, n-butyl, sec-butyl, t-butyl, hexyl, 2-ethylhexyl, octyl, nonyl, decyl, ethoxymethyl, ethoxyethyl, propoxyethyl, ethoxypropyl or ethoxyethoxypropyl.
-
5. A polymer as in claim 1 wherein R2 is methoxy, ethoxy, isopropoxy, n-propoxy, phenoxy, or tolyloxy.
-
6. A polymer as in claim 1 wherein a is 1 or 2 and R3 is methyl, ethyl, propyl, isopropyl, butyl, hexyl, phenyl, tolyl, dimethylphenyl or ethylphenyl.
-
7. A polymer as in claim 1 wherein a is 0.
-
8. A polymer as in claim 1 wherein R1 is a group of formula (2) and X is 1,2-propylene, 1,3-propylene, 1,4-butylene, 1,5-pentylene, 1,6-hexylene, isobutylene, 2,2-dimethylethylene, 1-methylpropylene, 3-methylpropylene, 2,2-dimethylpropylene, 3-methylbutylene, 3,3-dimethylbutylene, isopropoxypropylene, isopropoxyisobutylene, 2-ethylhexylene, cyclopentylene, 1,4-cyclohexylene, 1,4-diethylenecyclohexylene:
-
or 1,4-diethylenephenylene;
-
-
9. A composition comprising the product of reacting (A) a compound having at least two isocyanate groups thereon with (B) a silane of formula (3):
-
where R1 represents an alkyl group having 1 to 10 carbon atoms, optionally interupted with one or more ether oxygen atoms, or a group of the formula R2 represents a C1 to C6 alkoxy group or a C6-C8 aryloxy group;
R3 represents an alkyl or an aryl group;
T represents a branched or cyclic alkylene radical of 4 to 10 carbons, which may be optionally interrupted by one or more ether oxygen atoms;
X is an alkylene group of 3-10 carbon atoms, which may be linear, branched or cyclic; and
a is 0, 1 or 2. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23)
or 1,4-diethylenephenylene;
-
-
11. A composition as in claim 10 wherein R1 ethyl, R2 is methoxy, a is 0 or 1 and R3 is methyl.
-
12. A composition as in claim 9 wherein R1 is methyl, ethyl, propoxyethyl, propyl, isopropyl, n-butyl, sec-butyl, t-butyl, hexyl, 2-ethylhexyl, octyl, nonyl, decyl, ethoxymethyl, ethoxyethyl, propoxyethyl, ethoxypropyl or ethoxyethoxypropyl.
-
13. A composition as in claim 9 wherein R2 is methoxy, ethoxy, isopropoxy, n-propoxy, phenoxy or tolyloxy.
-
14. A composition as in claim 9 wherein a is 1 or 2 and R3 is methyl, ethyl, propyl, isopropyl, butyl, hexyl, phenyl, tolyl, dimethylphenyl or ethylphenyl.
-
15. A composition as in claim 9 wherein a is 0.
-
16. A composition as in claim 9 wherein isocyanate functional compound is a polymeric compound having a backbone selected from the group consisting of polyacrylics, polyurethanes, polyethers, polyesters, polyolefins and polyorganosiloxanes.
-
17. A composition as in claim 9 wherein said silane of formula (3) is selected from the group consisting of N-methyl-3-amino-2-methylpropyltrimethoxysilane, N-ethyl-3-amino-2-methylpropyltrimethoxysilane, N-ethyl-3-amino-2-methylpropyldiethoxymethylsilane, N-ethyl-3-amino-2-methylpropyltriethoxy silane, N-ethyl-3-amino-2-methylpropylmethyldimethoxysilane, N-butyl-3-amino-2-methylpropyltrimethoxysilane, 3 (N-methyl-2-amino- 1-methyl-1-ethoxy)-propyltrimethoxysilane, N-ethyl-4-amino-3,3-dimethylbutyldimethoxymethylsilane, N-ethyl-4-amino-3,3-dimethylbutyltrimethoxysilane, bis-(3-trimethoxysilyl-2-methylpropyl)amine and N-(3′
- -trimethoxysilylpropyl)-3-amino-2-methylpropyltrimethoxysilane.
-
18. A composition as in claim 9 wherein R1 is a group of formula (2) and X is 1,2-propylene, 1,3-propylene, 1,4-butylene, 1,5-pentylene, 1,6-hexylene, isobutylene, 2,2-dimethylethylene, 1-methylpropylene, 3-methylpropylene, 2,2-dimethylpropylene, 3-methylbutylene, 3,3-dimethylbutylene, isopropoxypropylene, isopropoxyisobutylene, 2-ethylhexylene, cyclopentylene, 1,4-cyclohexylene, 1,4-diethylenecyclohexylene:
-
or 1,4-diethylenephenylene;
-
-
19. A composition as in claim 9 further comprising a moisture cure catalyst.
-
20. A composition as in claim 19 further comprising at least one member of the group consisting of fillers, plasticizers, thixotropes, ultraviolet stabilizers, and adhesion promoters.
-
21. A sealing method comprising applying a composition as in claim 19 between two substrates and allowing the applied composition to be exposed to ambient moisture.
-
23. A process as in claim 20 wherein said prepolymer (A) is provided as a reaction product of a polyol and a polyisocyanate.
-
22. A process of making a moisture cureable prepolymer comprising:
-
providing a prepolymer (A) having at least two isocyanate reaction groups thereon, and reacting the prepolymer (A) with a silane of formula (3);
where R1 represents an alkyl group having 1 to 10 carbon atoms, optionally interupted with one or more ether oxygen atoms, or a group of the formula R2 represents a C1 to C6 alkoxy group or a C6-C8 aryloxy group;
R3 represents an alkyl or an aryl group;
T represents a branched or cyclic alkylene radical of 4 to 10 carbons, which may be optionally interrupted by one or more ether oxygen atoms;
X is an alkylene group of 3-10 carbon atoms, which may be linear, branched or cyclic; and
a is 0, 1 or 2.
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeGeneral Electric Company
-
Original AssigneeCk Witco Corporation (Lanxess AG)
-
InventorsWaldman, Bruce A., Huang, Misty Weiyu
-
Primary Examiner(s)GORR, RACHEL F
-
Application NumberUS09/427,829Time in Patent Office496 DaysField of Search528/49, 528/28, 525/453, 525/474, 556/421US Class Current528/28CPC Class CodesC08G 18/10 Prepolymer processes involv...C08G 18/289 containing siliconC08G 2190/00 Compositions for sealing or...
