US3907706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latent catalyst systems for cationically polymerizable materials
Assignee: 3M Co
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Filing: 1973-07-06
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Granted: 1975-09-23
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Expires: 1993-07-06
Abstract
Abstract A multi-component catalyst system that is latent at a first elevated temperature but is rapidly activated at a second temperature only slightly elevated over the first temperature comprises 1) metal salts of fluoroalkane sulfonic acids or bis(fluoroalkylsulfonyl)methanes, and 2) a thermally decomposable ester reaction product of a tertiary alkyl alcohol and an acid that forms a chelation complex with the metal ion of the metal salt. In some embodiments the catalyst system further includes a buffering compound that retards activity of the catalyst system.
Inventors
- 👤 Janis Robins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:30
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/2252; B01J31/2256; C; C08; C08F; C08F4/00; C08F4/42; C08F4/44; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/687; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/2645; C08G65/269; C08G85/00; B01J2531/00; B01J2531/10; B01J2531/11; B01J2531/12; B01J2531/20; B32B2250/00; B32B2250/20; B32B2260/00; B32B2260/02; B32B2260/021; B32B2260/023; B32B2260/04; B32B2260/046; B32B2305/00; B32B2305/07; B32B2305/076; B32B2305/08; B32B2305/38
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
106 words
IN COMBINATION AS A CATALYST SYSTEM SOLUBLE IN THE MATERIAL TO BE CATALYZED, 1) ONE EQUIVALENT OF METAL SALT SELECTED FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, CALCIUM, STRONTIUM, SILVER, BARIUM, AND LEAD SALTS OF A FLUOROALKYLSULFONYL ACID SELECTED FROM THE GROUP CONSISTING OF FLUOROALKANE SULFONIC ACIDS AND BIS(FLUOROALKYLSULFONYL)-METHANES: AND 2) ABOUT 0.2 TO ABOUT 2 EQUIVALENTS OF THERMALLY DECOMPOSABLE ESTER REACTION PRODUCT OF A TERTIARY ALKYL ALCOHOL AND AN ACID THAT FORMS A CHELATION COMPLEX WITH THE METAL CATION OF SAID METAL SALT, ESTER REACTION PRODUCT DECOMPOSING UPON HEATNG TO RELEASE THE CHELATING ACID FOR COMPLEXING WITH THE METAL CATION, WHEREBY CATALYTIC ACTIVITY IS INITIATED.
Claim 2
Dependent Claim
106 words
IN COMBINATION AS A CATALYST SYSTEM SOLUBLE IN THE MATERIAL TO BE CATALYZED, 1) ONE EQUIVALENT OF METAL SALT SELECTED FROM THE GROUP CONSISTING OF LITHIUM, SODIUM, CALCIUM, STRONTIUM, SILVER, BARIUM, AND LEAD SALTS OF A FLUOROALKYLSULFONYL ACID SELECTED FROM THE GROUP CONSISTING OF FLUOROALKANE SULFONIC ACIDS AND BIS(FLUOROALKYLSULFONYL)-METHANES: AND 2) ABOUT 0.2 TO ABOUT 2 EQUIVALENTS OF THERMALLY DECOMPOSABLE ESTER REACTION PRODUCT OF A TERTIARY ALKYL ALCOHOL AND AN ACID THAT FORMS A CHELATION COMPLEX WITH THE METAL CATION OF SAID METAL SALT, ESTER REACTION PRODUCT DECOMPOSING UPON HEATNG TO RELEASE THE CHELATING ACID FOR COMPLEXING WITH THE METAL CATION, WHEREBY CATALYTIC ACTIVITY IS INITIATED.
Claim 3
Dependent Claim
25 words
A combination of claim 1 in which the metal of said metal salt is selected from the group consisting of lithium, sodium, strontium, and barium.
Claim 4
Dependent Claim
26 words
A combination of claim 1 in which the fluoroalkylsulfonyl acid is a fluoroalkane sulfonic acid and the fluoroalkyl group is perfluoroalkyl containing 2 carbons or less.
Claim 5
Dependent Claim
22 words
A combination of claim 1 in which the chelating acid is selected from the group consisting of oxalic, phosphoric and phosphorous acids.
Claim 6
Dependent Claim
88 words
A combination of claim 1 that further includes up to about 0.6 equivalent per equivalent of said ester reaction product of a buffering compound that has a solubility in the material to be catalyzed of at least 1 part per 1000 parts of the material to be catalyzed, said buffering compound providing a base when dissolved in the material to be catalyzed that associates with the proton of the chelating acid generated by thermal decomposition of said ester reaction product to retard the catalytic activity of the combination.
Claim 7
Dependent Claim
32 words
A combination of claim 5 in which the buffering compound is selected from the group consisting of hudroxides, alkoxides, and carboxylates of alkali metals, carboxylates of alkaline-earth metals, and quaternary ammonium hydroxides.
Claim 8
Dependent Claim
23 words
A combination of claim 5 in which the buffering compound is selected from the group consisting of carboxylates of barium, strontium and sodium.
Claim 9
Dependent Claim
94 words
In combination as a catalyst system soluble in the material to be catalyzed, 1) one equivalent of metal salt selected from the group consisting of lithium, sodium, strontium, and barium salts of a fluoroalkane sulfonic acid; and 2) about 0.2 to about 2 equivalents of thermally decomposable ester reaction product of a tertiary alkyl alcohol and an acid that forms a chelation complex with the metal cation of said metal salt, the ester reaction product decomposiing upon heating to release the chelating acid for complexing with the metal cation, whereby catalytic activity is initiated.
Claim 10
Dependent Claim
94 words
In combination as a catalyst system soluble in the material to be catalyzed, 1) one equivalent of metal salt selected from the group consisting of lithium, sodium, strontium, and barium salts of a fluoroalkane sulfonic acid; and 2) about 0.2 to about 2 equivalents of thermally decomposable ester reaction product of a tertiary alkyl alcohol and an acid that forms a chelation complex with the metal cation of said metal salt, the ester reaction product decomposiing upon heating to release the chelating acid for complexing with the metal cation, whereby catalytic activity is initiated.
Claim 11
Dependent Claim
22 words
A combination of claim 8 in which the chelating acid is selected from the group consisting of oxalic, phosphoric, and phosphorous acids.
Claim 12
Dependent Claim
88 words
A combination of claim 8 that further includes up to about 0.6 equivalent per equivalent of said ester reaction product of a buffering compound that has a solubility in the material to be catalyzed of at least 1 part per 100 parts of the material to be catalyzed, said buffering compound providing a base when dissolved in the material to be catalyzed that associates with the proton of the chelating acid generated by thermal decomposition of said ester reaction product to retard the catalytic activity of the combination.
Claim 13
Dependent Claim
85 words
In combination as a catalyst system soluble in the material to be catalyzed, 1) one equivalent of barium trifluoromethane sulfonate; and 2) about 0.2 to about 2 equivalents of thermally decomposable ester reaction product of a tertiary alkyl alcohol and an acid selected from the group consisting of oxalic, phosphoric, and phosphorous acids that forms a chelation complex with the barium cation, the ester reaction product decomposing upon heating to release the chelating acid for complexing with the barium cation, whereby catalytic activity is initiated.
Claim 14
Dependent Claim
85 words
In combination as a catalyst system soluble in the material to be catalyzed, 1) one equivalent of barium trifluoromethane sulfonate; and 2) about 0.2 to about 2 equivalents of thermally decomposable ester reaction product of a tertiary alkyl alcohol and an acid selected from the group consisting of oxalic, phosphoric, and phosphorous acids that forms a chelation complex with the barium cation, the ester reaction product decomposing upon heating to release the chelating acid for complexing with the barium cation, whereby catalytic activity is initiated.
Claim 15
Dependent Claim
13 words
A combination of claim 11 in which the chelating acid is oxalic acid.
References Cited (Backward Citations)
US3586616A
Cited
US3632843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |