US3996409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature adhesive-sealant composition
Assignee: PPG Industries Inc
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Filing: 1975-04-24
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Granted: 1976-12-07
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Expires: 1995-04-24
Abstract
Abstract Adhesive - sealant compositions useful for bonding metal and/or glass surfaces are disclosed. These adhesive - sealant compositions are comprised of an aluminous cement and the reaction product of a tetracarboxylic dianhydride or a tricarboxylic monoanhydride and a dihydrazine, dihydrazide or aromatic diamine. The adhesive sealant is capable of withstanding surface temperatures of up to 1,000° F. without loss of adhesive or sealing properties.
Inventors
- 👤 John G. Holloway
- 👤 Herbert W. Barch
- 👤 Dennis M. Fahey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:54
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/025; C03; C03C; C03C27/00; C03C27/04; C03C27/048; C04B24/00; C04B24/12; C04B28/00; C04B28/02; C04B28/06; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63448; C04B35/63468; C04B37/028; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/1003; C08G73/1007; C08G73/14; C09; C09J; C09J179/00; C09J179/04; C09J179/08; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/064; C04B2237/09; C04B2237/30; C04B2237/32; C04B2237/40; C04B2237/402; C04B2237/405; C04B2237/406; C04B2237/407; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31623; Y10T428/31678; Y10T428/31681; Y10T428/31725; Y10T428/31765
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
138 words
An article of manufacture comprising a metallic substrate bonded to a glass substrate by means of an adhesive sealant composition comprising: a. 75 to 97 percent by weight of a mixture of metal oxides having therein 78 to 99 percent as Al 2 O 3 and b. 3 to 25 percent by weight of an organic compound selected from the group consisting of: i. the reaction product of an aromatic tetracarboxylic dianhydride and an aromatic diamine, ii. the reaction product of an aromatic tetracarboxylic dianhydride and a hydrazine, iii. the reaction product of an aromatic tetracarboxylic acid and a dihydrazide, iv. the reaction product of an aromatic tricarboxylic monoanhydride and an aromatic diamine, v. the reaction product of an aromatic tricarboxylic monoanhydride and a hydrazine, and vi. the reaction product of a tricarboxylic acid and an a hydrazide.
Claim 2
Dependent Claim
138 words
An article of manufacture comprising a metallic substrate bonded to a glass substrate by means of an adhesive sealant composition comprising: a. 75 to 97 percent by weight of a mixture of metal oxides having therein 78 to 99 percent as Al 2 O 3 and b. 3 to 25 percent by weight of an organic compound selected from the group consisting of: i. the reaction product of an aromatic tetracarboxylic dianhydride and an aromatic diamine, ii. the reaction product of an aromatic tetracarboxylic dianhydride and a hydrazine, iii. the reaction product of an aromatic tetracarboxylic acid and a dihydrazide, iv. the reaction product of an aromatic tricarboxylic monoanhydride and an aromatic diamine, v. the reaction product of an aromatic tricarboxylic monoanhydride and a hydrazine, and vi. the reaction product of a tricarboxylic acid and an a hydrazide.
Claim 3
Dependent Claim
12 words
The article of claim 1 wherein the glass substrate is glass fibers.
Claim 4
Dependent Claim
24 words
The article of claim 1 wherein the metal is selected from the group consisting essentially of the ferrous metals and the aluminum containing metals.
Claim 5
Independent Claim
158 words
A method of bonding a plurality of substrates comprising: applying to the surface of said substrates to be bonded an adhesive-sealant composition comprising: a. 75 to 97 percent by weight of a mixture of metal oxides having therein 78 to 99 percent as Al 2 O 3 and b. 3 to 25 percent by weight of an organic compound selected from the group consisting of: i. the reaction product of an aromatic tetracarboxylic dianhydride and an aromatic diamine, ii. the reaction product of an aromatic tetracarboxylic dianhydride and a hydrazine, iii. the reaction product of an aromatic tetracarboxylic acid and a dihydrazide, iv. the reaction product of an aromatic tricarboxylic monoanhydride and an aromatic diamine, v. the reaction product of an aromatic tricarboxylic monoanhydride and a hydrazine, and vi. the reaction product of a tricarboxylic acid and a hydrazide; and contacting said coated substrates between the coated surfaces and heating the contacted adhesive coated substrates to 600° F.
Claim 6
Independent Claim
158 words
A method of bonding a plurality of substrates comprising: applying to the surface of said substrates to be bonded an adhesive-sealant composition comprising: a. 75 to 97 percent by weight of a mixture of metal oxides having therein 78 to 99 percent as Al 2 O 3 and b. 3 to 25 percent by weight of an organic compound selected from the group consisting of: i. the reaction product of an aromatic tetracarboxylic dianhydride and an aromatic diamine, ii. the reaction product of an aromatic tetracarboxylic dianhydride and a hydrazine, iii. the reaction product of an aromatic tetracarboxylic acid and a dihydrazide, iv. the reaction product of an aromatic tricarboxylic monoanhydride and an aromatic diamine, v. the reaction product of an aromatic tricarboxylic monoanhydride and a hydrazine, and vi. the reaction product of a tricarboxylic acid and a hydrazide; and contacting said coated substrates between the coated surfaces and heating the contacted adhesive coated substrates to 600° F.
Claim 7
Dependent Claim
15 words
The method of claim 4 wherein the tetracarboxylic dianhydride is of the structural formula: ##STR11##
Claim 8
Dependent Claim
14 words
The method of claim 4 wherein the diamine is of the structural formula: ##STR12##
Claim 9
Dependent Claim
16 words
The method of claim 4 wherein the tricarboxylic acid dianhydride is of the structural formula: ##STR13##
Claim 10
Dependent Claim
20 words
The method of claim 4 wherein the aluminous cement has 99 percent by weight as Al 2 O 3 .
Claim 11
Dependent Claim
18 words
The method of claim 4 wherein the aluminous cement has 12 percent by weight as SiO 2 .
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) | 1979-12-07 | 1980-06-07 | 1980-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-07 | 1984-06-07 | 1984-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-07 | 1988-06-07 | 1988-12-07 | $7700.00 | Window Closed / Lapsed |