EP1544225A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Two-component silylated polyurethane adhesive, sealant, and coating compositions
Assignee: Covestro LLC
•
Filing: 2004-12-07
•
Granted: —
•
Expires: 2024-12-07
Abstract
Abstract A two-component adhesive, sealant, or coating composition containing (i) a first component containing a portion of an alkoxysilane-functional urethane and water; and (ii) a second component containing the remaining portion of the alkoxysilane-functional urethane and a catalyst. The alkoxysilane-functional urethane includes the reaction product of (a) the reaction product of a hydroxy functional compound and a polyisocyanate, that contains isocyanate groups; with (b) an amine functional aspartate. The composition is used in a method of bonding a first substrate to a second substrate. The method includes (a) combining component i) and component ii) to form a mixture, applying a coating of the mixture to at least one surface of the first substrate or the second substrate, and contacting a surface of the first substrate with a surface of the second substrate. The method is used make an assembly.
Inventors
- 👤 Richard R. Roesler
- 👤 Kurt C. Frisch
- 👤 Craig E. Jansen
- 👤 Dinesh Pethiyagoda
- 👤 Kevan E. Hudson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 11:45
CPC Classifications
C; C08; C08G; C08G77/00; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/288; C08G18/289; C08G18/08; C08G18/10; C08G18/82; C09; C09J; C09J175/00; C09J175/04; C08G2190/00; Y; Y10; Y10S; Y10S524/00; Y10S524/906; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31562; Y10T428/31573; Y10T428/31587; Y10T428/31591; Y10T428/31605; Y10T442/00; Y10T442/20; Y10T442/2484; Y10T442/2492; Y10T442/2762; Y10T442/277; Y10T442/2861; Y10T442/291; Y10T442/2918
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
210 words
A two-component adhesive, sealant, or coating composition
comprising an alkoxysilane-functional urethane comprising the reaction
product of a) the reaction product of a hydroxy functional compound and a
polyisocyanate, the reaction product containing isocyanate
functional groups; with b) a compound corresponding to formula I: wherein X represents identical or different groups selected from
C 1 -C 10 linear or branched alkyl groups and C 1 -C 10 linear or branched alkoxy groups with the proviso that
at least two occurrences of X are alkoxy and if one or
two X groups are methoxy, at least one X group must
be a C 1 -C 10 linear or branched alkyl group, Y represents a C 1 -C 8 linear or branched alkylene group, R 2 and R 5 are identical or different and represent organic
groups which are inert to isocyanate groups at a
temperature of 100°C or less, and R 3 and R 4 are identical or different and represent hydrogen
or organic groups which are inert towards isocyanate
groups at a temperature of 100°C or less, wherein the two-component composition comprises (i) a first component comprising a portion of the
alkoxysilane-functional urethane and water; and (ii) a second component comprising the remaining portion
of the alkoxysilane-functional urethane and a catalyst.
Claim 2
Dependent Claim
15 words
The composition of Claim 1, wherein the hydroxy functional
compound in a) is a polyol.
Claim 3
Dependent Claim
15 words
The composition of Claim 1, wherein the hydroxy functional
compound in a) is a diol.
Claim 4
Dependent Claim
48 words
The composition of Claim 1, wherein the hydroxy functional
compound is selected from the group consisting of polyester monools,
diols, polyols and mixtures thereof, (meth)acrylic monools, diols, polyols
and mixtures thereof, polyether monools, diols, polyols and mixtures
thereof, hydrocarbon monools, diols, polyols and mixtures thereof, and
mixtures thereof.
Claim 5
Dependent Claim
23 words
The composition of Claim 1, wherein the compound of
formula I is the reaction product of an N-(trialkoxysilylalkyl) amine and a
dialkyl maleate.
Claim 6
Dependent Claim
53 words
The composition of Claim 5, wherein the N-(trialkoxysilylalkyl)
amine has a structure according to formula (II): NH 2 -R 1 -Si(-O-R 6 ) 3 wherein R 1 is a C 1 -C 8 linear or branched alkylene group; and R 6 is
independently selected from C 2 -C 10 linear or branched alkyls.
Claim 7
Dependent Claim
15 words
The composition of Claim 1, wherein the polyisocyanate
contains from 2 to 6 isocyanate groups.
Claim 8
Dependent Claim
46 words
The composition of Claim 1, wherein the polyisocyanate has
a structure according to formula (III): OCN-R 7 -NCO wherein R 7 is selected from C 2 to C 24 linear, branched, and cyclic alkylene,
arylene, and aralkylene, which may optionally contain one or more
isocyanate groups.
Claim 9
Dependent Claim
64 words
The composition of Claim 1, wherein the polyisocyanate is
selected from the group consisting of 1,4-tetramethylene diisocyanate, 1,6-hexamethylene
diisocyanate, 2,2,4-trimethyl-1,6-hexamethylene
diisocyanate, 1,12-dodecamethylene diisocyanate, cyclohexane-1,3- and
-1,4-diisocyanate, 1-isocyanato-2-isocyanatomethyl cyclopentane, 1-isocyanato-3-isocyanatomethyl-3,5,5-trimethyl-cyclohexane,
bis-(4-isocyanatocyclohexyl)-methane,
2,4'-dicyclohexyl-methane diisocyanate,
1,3- and 1,4-bis-(isocyanatomethyl)-cyclohexane, bis-(4-isocyanato-3-methyl-cyclohexyl)-methane,
α,α,α',α'-tetramethyl-1,3- diisocyanate,
α,α,α',α'-1,4-xylylene diisocyanate, 1-isocyanato-1-methyl-4(3)-isocyanatomethyl
cyclohexane, 2,4-hexahydrotoluylene diisocyanate, 2,6-hexahydrotoluylene
diisocyanate, 1,3-phenylene diisocyanate, 1,4-phenylene
diisocyanate, 2,4-toluylene diisocyanate, 2,6-toluylene
diisocyanate, 2,4- diphenyl-methane diisocyanate, 4,4'-diphenyl-methane
diisocyanate, 1,5-diisocyanato naphthalene and mixtures thereof.
Claim 10
Dependent Claim
52 words
The composition of Claim 1, further comprising, in either or
both of I) and ii), one or more materials selected from the group consisting
of leveling agents, wetting agents, flow control agents, antiskinning agents,
antifoaming agents, fillers, adhesion promoters, viscosity regulators,
plasticizers, pigments, dyes, UV absorbers, thermal stabilizers,
antioxidants, and mixtures thereof.
Claim 11
Dependent Claim
34 words
The composition of Claim 1, wherein the reactive silane
groups of the compound corresponding to formula I are incorporated as
the reaction product of an isocyanate group and the -NH- group of
formula I.
Claim 12
Dependent Claim
32 words
The composition of Claim 1, wherein the catalyst in ii) is one
or more selected from the group consisting of paratoluene sulfonic acid,
dibutyl tin dilaurate, dibutyltin acetoacetonate, triethylamine, and
triethylene diamine.
Claim 13
Dependent Claim
16 words
The composition of Claim 1, wherein component i) and
component ii) are both stable at 50°C.
Claim 14
Dependent Claim
30 words
The composition of Claim 1, wherein the equivalent ratio of
hydroxyl groups in the hydroxy functional compound to isocyanate groups
in the polyisocyanate in a) is from 1:10 to 1:1.
Claim 15
Dependent Claim
40 words
The composition of Claim 1, wherein the reaction product a)
is present at from 50 to 99 percent by weight and the amine functional
aspartate b) is present at from 1 to 50 percent by weight of the
alkoxysilane-functional urethane.
Claim 16
Dependent Claim
35 words
The composition of Claim 1, wherein the component i) is
present at from 10 to 90 percent by weight and component ii) is present at
from 10 to 90 percent by weight of the composition.
Claim 17
Dependent Claim
19 words
The composition of Claim 4, wherein the polyether has a
number average molecular weight of from 500 to 15,000.
Claim 18
Dependent Claim
19 words
A method of applying a composition to a substrate
comprising mixing component i) and component ii) of Claim 1.
Claim 19
Dependent Claim
72 words
A method of bonding a first substrate to a second substrate
comprising combining component i) and component ii) of Claim 1 to form
a mixture, applying a coating of the mixture to at least one surface of
the first substrate or the second substrate, and contacting a surface of the first substrate with a surface of
the second substrate, wherein at least on of the
contacting surfaces has the coating applied thereto.
Claim 20
Dependent Claim
36 words
The method of Claim 19, wherein one or both of the first
substrate and the second substrate comprises a substrate selected from
the group consisting of wood, metals, plastics, paper, canvas, ceramics,
stone, glass, and concrete.
Claim 21
Dependent Claim
12 words
The method of Claim 20, wherein the metal comprises iron or
aluminum.
Claim 22
Dependent Claim
22 words
The method of Claim 20, wherein the plastic is selected from
the group consisting of poly(ethylene), poly(propylene), poly(ethylene
terephthalate), and mixtures thereof.
Claim 23
Dependent Claim
33 words
The method of Claim 20, wherein the canvas comprises one
or more fibers selected from the group consisting of cotton fibers, nylon
fibers, poly(ethylene) fibers, poly(propylene) fibers, poly(ethylene
terephthalate) fibers, and mixtures thereof.
Claim 24
Dependent Claim
23 words
The method of Claim 19, wherein the first substrate and the
second substrate are contacted at a temperature of from 0°C to 150°C.
Claim 25
Dependent Claim
25 words
The method of Claim 19, wherein the first substrate and the
second substrate are contacted at a pressure of from atmospheric
pressure to 500 psi.
Claim 26
Dependent Claim
19 words
An assembly made according to Claim 19 comprising at least
the first substrate and the second substrate bonded together.
Claim 27
Dependent Claim
24 words
A method of coating a substrate comprising applying the
composition of Claim 1 to at least a portion of a surface of the substrate.
Claim 28
Dependent Claim
11 words
A coated substrate prepared according to the method of
Claim 27.
References Cited (Backward Citations)
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