US5006580A
Expired / Lapsed
US
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Self-bonding curable organopolysiloxane composition
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1989-06-05
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Granted: 1991-04-09
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Expires: 2009-06-05
Abstract
Abstract An improved self-bonding curable organopolysiloxane composition which contains (A) an organopolysiloxane having at least 2 silicon-bonded alkenyl groups in each molecule, (B) an organopolysiloxane having at least 2 silicone-bonded hydrogen atoms in each molecule, (C) a catalytic quantity of a platinum-type catalyst, (D) a carbonyl complex of a Group VIB element, and (E) a compound containing a silicon-bonded alkoxy group which is selected from the group consisting of silanes or siloxane oligomers. Examples of the carbonyl complex are molybdenum hexacarbonyl, tungsten hexacarbonyl, and chromium hexacarbonyl.
Inventors
- 👤 Akira Kasuya
- 👤 Toshio Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:26
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08K; C08K3/00; C08K3/18; C08K5/00; C08K5/54; C08G; C08G77/00; C08G77/04; C08G77/045; C08G77/12; C08G77/14; C08G77/18; C08G77/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
148 words
A curable organopolysiloxane composition comprising (A) an organopolysiloxane having at least 2 silicon-bonded alkenyl groups in each molecule, (B) an organopolysiloxane having at least 2 silicon-bonded hydrogen atoms in each molecule, (C) a catalytic quantity of a platinum catalyst, (D) a carbonyl complex of an element selected from the group consisting of molybdenum, tungsten, and chromium, and (E) a compound containing a silicon-bonded alkoxy group selected from the group consisting of silanes and siloxane oligomers, wherein the quantity of component (B) is sufficient to give a value of 0.5:1 to 1:5 for the molar ratio between the silicon-bonded hydrogen atoms in component (B) and the silicon-bonded alkenyl groups in component (A), component (D) comprises 0.0001 to 0.5 weight % of the total quantity of component (A) plus component (B), and component (E) comprises 0.01 to 10 weight % of the total quantity of component (A) plus component (B).
Claim 2
Dependent Claim
148 words
A curable organopolysiloxane composition comprising (A) an organopolysiloxane having at least 2 silicon-bonded alkenyl groups in each molecule, (B) an organopolysiloxane having at least 2 silicon-bonded hydrogen atoms in each molecule, (C) a catalytic quantity of a platinum catalyst, (D) a carbonyl complex of an element selected from the group consisting of molybdenum, tungsten, and chromium, and (E) a compound containing a silicon-bonded alkoxy group selected from the group consisting of silanes and siloxane oligomers, wherein the quantity of component (B) is sufficient to give a value of 0.5:1 to 1:5 for the molar ratio between the silicon-bonded hydrogen atoms in component (B) and the silicon-bonded alkenyl groups in component (A), component (D) comprises 0.0001 to 0.5 weight % of the total quantity of component (A) plus component (B), and component (E) comprises 0.01 to 10 weight % of the total quantity of component (A) plus component (B).
Claim 3
Dependent Claim
16 words
A curable organopolysiloxane composition as claimed in claim 1 wherein the carbonyl complex is molybdenum hexacarbonyl.
Claim 4
Dependent Claim
16 words
A curable organopolysiloxane composition as claimed in claim 1 wherein the carbonyl complex is chromium hexacarbonyl.
Claim 5
Dependent Claim
16 words
A curable organopolysiloxane composition as claimed in claim 1 wherein the carbonyl complex is tungsten hexacarbonyl.
Claim 6
Dependent Claim
159 words
A curable organopolysiloxane composition comprising (A) an organopolysiloxane having at least 2 silicon-bonded alkenyl groups in each molecule, (B) an organopolysiloxane having at least 2 silicone-bonded hydrogen atoms in each molecule, (C) a catalytic quantity of a catalyst selected from the group consisting of platinum, rhodium, palladium, cobalt, and nickel, (D) a carbonyl complex of an element selected from the group consisting of molybdenum, tungsten, and chromium, and (E) a compound containing a silicon-bonded alkoxy group selected from the group consisting of silanes and siloxane oligomers, wherein the quantity of component (B) is sufficient to give a value of 0.5:1 jto 1:5 for the molar ratio between the silicon-bonded hydrogen atoms in component (B) and the silicon-bonded alkenyl groups in component (A), component (D) comprises 0.0001 to 0.5 weight % of the total quantity of component (A) plus component (B), and component (E) comprises 0.01 to 10 weight % of the total quantity of component (A) plus component (B).
Claim 7
Dependent Claim
159 words
A curable organopolysiloxane composition comprising (A) an organopolysiloxane having at least 2 silicon-bonded alkenyl groups in each molecule, (B) an organopolysiloxane having at least 2 silicone-bonded hydrogen atoms in each molecule, (C) a catalytic quantity of a catalyst selected from the group consisting of platinum, rhodium, palladium, cobalt, and nickel, (D) a carbonyl complex of an element selected from the group consisting of molybdenum, tungsten, and chromium, and (E) a compound containing a silicon-bonded alkoxy group selected from the group consisting of silanes and siloxane oligomers, wherein the quantity of component (B) is sufficient to give a value of 0.5:1 jto 1:5 for the molar ratio between the silicon-bonded hydrogen atoms in component (B) and the silicon-bonded alkenyl groups in component (A), component (D) comprises 0.0001 to 0.5 weight % of the total quantity of component (A) plus component (B), and component (E) comprises 0.01 to 10 weight % of the total quantity of component (A) plus component (B).
Claim 8
Dependent Claim
27 words
A curable organopolysiloxane composition as claimed in claim 5 wherein the carbonyl complex is selected from the group consisting of molybdenum hexacarbonyl, chromium hexacarbonyl, and tungsten hexacarbonyl.
Claim 9
Dependent Claim
168 words
A curable organopolysiloxane composition comprising (A) an organopolysiloxane having at least 2 silicon-bonded alkenyl groups in each molecule, (B) an organopolysiloxane having at least 2 silicone-bonded hydrogen atoms in each molecule, (C) a catalytic quantity of a catalyst selected from the group consisting of chloroplatinic acid, platinum-olefin complexes, platinum-alkenylsiloxane complexes, platinum/beta-diketone complexes, and phosphine complexes of platinum and rhodium, (D) a carbonyl complex of an element selected from the group consisting of molybdenum, tungsten, and chromium, and (E) a compound containing a silicon-bonded alkoxy group selected from the group consisting of silanes and siloxane oligomers, wherein the quantity of component (B) is sufficient to give a value of 0.5:1 to 1:5 for the molar ratio between the silicon-bonded hydrogen atoms in component (B) and the silicon-bonded alkenyl groups in component (A), component (D) comprises 0.0001 to 0.5 weight % of the total quantity of component (A) plus component (B), and component (E) comprises 0.01 to 10 weight % of the total quantity of component (A) plus component (B).
Claim 10
Dependent Claim
168 words
A curable organopolysiloxane composition comprising (A) an organopolysiloxane having at least 2 silicon-bonded alkenyl groups in each molecule, (B) an organopolysiloxane having at least 2 silicone-bonded hydrogen atoms in each molecule, (C) a catalytic quantity of a catalyst selected from the group consisting of chloroplatinic acid, platinum-olefin complexes, platinum-alkenylsiloxane complexes, platinum/beta-diketone complexes, and phosphine complexes of platinum and rhodium, (D) a carbonyl complex of an element selected from the group consisting of molybdenum, tungsten, and chromium, and (E) a compound containing a silicon-bonded alkoxy group selected from the group consisting of silanes and siloxane oligomers, wherein the quantity of component (B) is sufficient to give a value of 0.5:1 to 1:5 for the molar ratio between the silicon-bonded hydrogen atoms in component (B) and the silicon-bonded alkenyl groups in component (A), component (D) comprises 0.0001 to 0.5 weight % of the total quantity of component (A) plus component (B), and component (E) comprises 0.01 to 10 weight % of the total quantity of component (A) plus component (B).
Claim 11
Dependent Claim
27 words
A curable organopolysiloxane composition as claimed in claim 7 wherein the carbonyl complex is selected from the group consisting of molybdenum hexacarbonyl, chromium hexacarbonyl, and tungsten hexacarbonyl.
References Cited (Backward Citations)
US4558109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |