US4474933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crosslinking resin mixtures
Assignee: Dynamit Nobel AG
•
Filing: 1983-06-02
•
Granted: 1984-10-02
•
Expires: 2003-06-02
Abstract
Abstract The present invention relates to resin mixtures which are fluid at temperatures up to 100° C. and which crosslink either at elevated temperature or under the influence of moisture. Thermal crosslinking takes place at temperatures of 100° C. and up, preferably at about 120° C. The mixtures contain one or more mutually compatible polymers containing hydroxyl groups, in which at least 5% and not more than 90% of the hydroxyl groups are replaced by alkoxysilyl groups. The introduction of the alkoxysilyl groups is accomplished by the reaction of a diisocyanate with a hydroxyl group on the polymer, on the one hand, and with an aminosilane or mercaptosilane ester on the other. On the basis of their fluid-to-viscous consistency at room temperature or moderately elevated temperature, the resins can be applied in a thin coating and easily crosslinked in situ.
Inventors
- 👤 Hans Huber
- 👤 Eduard Hansel
- 👤 Gerhard Geier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:30
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/8083; C08G18/809; C08G18/71; C08G18/718; C08G18/77; C08G18/778; C08G2150/00; C08G2150/20; C08G2170/00; C08G2170/20; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24421
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
105 words
A crosslinkable resin mixture which is liquid at temperatures below 100° C., is made from polymers containing hydroxyl groups and having a molecular weight of 500 to 30,000, and wherein 5 to 90 mol.-% of the hydroxyl groups originally present in the mixture have been replaced by the reaction product of an organosilane of the general formula ##STR4## wherein R 1 =H or alkyl, cycloalkyl, aryl or aralkyl, R 2 =C 1 -C 5 alkylene, R 3 =methyl or ethyl, R 4 =alkyl or alkoxyalkylene of up to 4 carbon atoms, and n=0 or 1 or 2, with a monomeric or polymeric di- or triisocyanate.
Claim 2
Dependent Claim
105 words
A crosslinkable resin mixture which is liquid at temperatures below 100° C., is made from polymers containing hydroxyl groups and having a molecular weight of 500 to 30,000, and wherein 5 to 90 mol.-% of the hydroxyl groups originally present in the mixture have been replaced by the reaction product of an organosilane of the general formula ##STR4## wherein R 1 =H or alkyl, cycloalkyl, aryl or aralkyl, R 2 =C 1 -C 5 alkylene, R 3 =methyl or ethyl, R 4 =alkyl or alkoxyalkylene of up to 4 carbon atoms, and n=0 or 1 or 2, with a monomeric or polymeric di- or triisocyanate.
Claim 3
Dependent Claim
46 words
The crosslinkable resin mixture of claim 1, wherein the polymers contained in the mixture contain terminal or randomly distributed hydroxyl groups as well as groupings of the general formula ##STR5## wherein R x =residue of the monomeric or polymeric diisocyanate that was used for the preparation.
Claim 4
Dependent Claim
32 words
The crosslinkable resin mixture of claim 1, characterized in that its setting is brought about by reaction with water or atmospheric humidity or by heating to temperatures of 100° C. or higher.
Claim 5
Dependent Claim
20 words
The crosslinkable resin mixture of claim 3 wherein the temperature to which it is heated is at least 120° C.
Claim 6
Dependent Claim
19 words
The crosslinkable resin mixture of claim 1 further comprising a catalyst for accelerating the setting time of the adhesive.
Claim 7
Dependent Claim
21 words
The crosslinkable resin mixture of claim 1 wherein the polymers have a molecular weight in the range of 1000 to 10,000.
Claim 8
Dependent Claim
19 words
The crosslinkable resin mixture of claim 1 wherein 10% to 80 mole-% of the hydroxy group have been replaced.
Claim 9
Dependent Claim
47 words
The crosslinkable resin mixture of claim 1 wherein the polymer is selected from the group consisting of polyester polyols, polyether polyols, polyether ester polyols, functional glycerides, partial glycerides, polybutadienes containing hydroxyl group, and poly(meth)acrylic acid ester copolymers; and having a point (Tg) of less than 20° C.
Claim 10
Dependent Claim
16 words
The crosslinkable resin mixture of claim 8 wherein the polymer is castor oil or ricinic monodiglyceride.
Claim 11
Dependent Claim
20 words
The crosslinkable resin mixture of claim 1 wherein the organosilane is gamma-aminopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane, N-methyl-gamma-aminopropyltrimethoxysilane, N-n-octyl-gamma-aminopropyltrimethoxysilane, N-phenyl-gamma-aminopropyltrimethoxysilane, N-methyl-gamma-aminopropylmethyldimethoxysilane, gamma-mercaptopropyltrimethoxysilane, or gamma-mercaptopropyltriethoxysilane.
Claim 12
Dependent Claim
51 words
The crosslinkable resin mixture of claim 2 wherein the component of the resin mixture which contains the terminal group is selected from the group consisting of an adduct of 3-isocyanatomethyl-3,5,5-trimethyl-cyclohexyl-isocyanate, with N-methyl-gamma-aminopropyltris-methoxydiglycol-silane, gamma-mercaptopropylsilane, N-methyl-gamma-aminopropyltrimethoxysilane, N-methyl-gamma-aminopropylmethyldimethoxysilane, or N-n-octyl-gamma-aminopropyltrimethoxysilane; an adduct of toluyl diisocyanate with N-methyl-gamma-aminopropyltrimethoxysilane; and an adduct of methylene-bis-phenylisocyanate and N-methyl-gamma-aminopropyltrimethoxysilane.
Claim 13
Dependent Claim
58 words
A crosslinkable resin mixture which is liquid at temperatures below 100° C., from polymers containing hydroxyl groups and having a molecular weight of 500 to 30,000, and wherein 5 to 90 mol.-% of the hydroxyl groups originally present in the mixture have been replaced by the reaction product of di-[1-propyl-3(trimethoxysilyl)]-amine with a monomeric or polymeric di- or triisocyanate.
Claim 14
Dependent Claim
58 words
A crosslinkable resin mixture which is liquid at temperatures below 100° C., from polymers containing hydroxyl groups and having a molecular weight of 500 to 30,000, and wherein 5 to 90 mol.-% of the hydroxyl groups originally present in the mixture have been replaced by the reaction product of di-[1-propyl-3(trimethoxysilyl)]-amine with a monomeric or polymeric di- or triisocyanate.
References Cited (Backward Citations)
US3243475A
Cited
US3372083A
Cited
US3453243A
Cited
US3632557A
Cited
US3627722A
Cited
US3886226A
Cited
US3979344A
Cited
JPS5373772A
Cited
US4067844A
Cited
US4206299A
Cited
US4222925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |