Patent US4057529A successfully refreshed from Google Patents.
US4057529A
Expired / Lapsed
US
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Rubber compositions having improved adhesion after thermal aging
Assignee: Rhein Chemie Corp
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Filing: 1976-02-27
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Granted: 1977-11-08
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Expires: 1996-02-27
Abstract
Abstract A rubber composition comprising a highly unsaturated rubber, a magnesium compound capable of donating electrons and a carboxylated cobalt oxy metal complex comprising at least one metal atom selected from Groups IIIA, IIIB, IVA, IVB, VA and VB of the Periodic Table, at least one cobalt atom, said metal and cobalt atoms being linked through oxygen atoms, at least one acyloxy radical attached to a cobalt atom, and any residual valences of said complex being satisfied by acyloxy, aryloxy or alkoxy radicals.
Inventors
- 👤 Thomas J. Leo
- 👤 Thomas N. Loser
- 👤 Michael J. Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:36
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/10; C08K; C08K3/00; C08K3/18; C08K3/20; C08K5/00; C08K5/0091; C08K5/04; C08K5/09; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
121 words
A rubber composition comprising a highly unsaturated rubber, a magnesium compound capable of donating electrons and a carboxylated cobalt oxy metal complex comprising at least one metal atom selected from Groups IIIA, IIIB, IVA, IVB, VA and VB of the Periodic Table, at least one cobalt atom, said metal and cobalt atoms being linked through oxygen atoms, at least one acyloxy radical attached to a cobalt atom, and any residual valences of said complex being satisfied by acyloxy, aryloxy or alkoxy radicals, said magnesium compound and said cobalt complex being used in small amounts which are sufficient for obtaining a high level of adhesion between the rubber and a metal surface and improving the retention of such adhesion after thermal aging.
Claim 2
Dependent Claim
121 words
A rubber composition comprising a highly unsaturated rubber, a magnesium compound capable of donating electrons and a carboxylated cobalt oxy metal complex comprising at least one metal atom selected from Groups IIIA, IIIB, IVA, IVB, VA and VB of the Periodic Table, at least one cobalt atom, said metal and cobalt atoms being linked through oxygen atoms, at least one acyloxy radical attached to a cobalt atom, and any residual valences of said complex being satisfied by acyloxy, aryloxy or alkoxy radicals, said magnesium compound and said cobalt complex being used in small amounts which are sufficient for obtaining a high level of adhesion between the rubber and a metal surface and improving the retention of such adhesion after thermal aging.
Claim 3
Dependent Claim
14 words
A composition as claimed in claim 1 wherein the magnesium compound is magnesium oxide.
Claim 4
Dependent Claim
13 words
A composition as claimed in claim 1 wherein the metal atom is boron.
Claim 5
Dependent Claim
14 words
A composition as claimed in claim 3 wherein the magnesium compound is magnesium oxide.
Claim 6
Dependent Claim
43 words
A composition as claimed in claim 3 wherein the carboxylated cobalt oxy metal complex has the formula ##STR5## wherein R is a straight chain organic radical having at least 7 carbon atoms, and R 1 is an alkoxy, aryloxy, acyloxy or ##STR6## radical.
Claim 7
Dependent Claim
14 words
A composition as claimed in claim 5 wherein the magnesium compound is magnesium oxide.
Claim 8
Dependent Claim
16 words
A composition as claimed in claim 5 wherein R has from 9 to 11 carbon atoms.
Claim 9
Dependent Claim
14 words
A composition as claimed in claim 7 wherein the magnesium compound is magnesium oxide.
Claim 10
Dependent Claim
43 words
A composition as claimed in claim 3 wherein the carboxylated cobalt oxy metal complex has the formula ##STR7## wherein R is a straight chain organic radical having at least 7 carbon atoms, and R 1 is an alkoxy, aryloxy, acyloxy or ##STR8## radical.
Claim 11
Dependent Claim
14 words
A composition as claimed in claim 9 wherein the magnesium compound is magnesium oxide.
Claim 12
Dependent Claim
16 words
A composition as claimed in claim 9 wherein R has from 9 to 11 carbon atoms.
Claim 13
Dependent Claim
14 words
A composition as claimed in claim 11 wherein the magnesium compound is magnesium oxide.
Claim 14
Independent Claim
148 words
A method for improving the retention of adhesion after thermal aging of a rubber composition to a metal surface comprising compounding a highly unsaturated rubber with a magnesium compound capable of donating electrons, and a carboxylated cobalt oxy metal complex comprising at least one metal atom selected from Groups IIIA, IIIB, IVA, IVB, VA and VB of the Periodic Table, at least one cobalt atom, said metal and cobalt atoms being linked through oxygen atoms, at least one acyloxy radical attached to a cobalt atom, and any residual valences of said complex being satisfied by acyloxy, aryloxy or alkoxy radicals, said magnesium compound and said cobalt complex being used in small amounts which are sufficient for obtaining a high level of adhesion between the rubber and the metal surface and improving the retention of such adhesion after thermal aging, and contacting the rubber composition with the metal surface.
Claim 15
Independent Claim
148 words
A method for improving the retention of adhesion after thermal aging of a rubber composition to a metal surface comprising compounding a highly unsaturated rubber with a magnesium compound capable of donating electrons, and a carboxylated cobalt oxy metal complex comprising at least one metal atom selected from Groups IIIA, IIIB, IVA, IVB, VA and VB of the Periodic Table, at least one cobalt atom, said metal and cobalt atoms being linked through oxygen atoms, at least one acyloxy radical attached to a cobalt atom, and any residual valences of said complex being satisfied by acyloxy, aryloxy or alkoxy radicals, said magnesium compound and said cobalt complex being used in small amounts which are sufficient for obtaining a high level of adhesion between the rubber and the metal surface and improving the retention of such adhesion after thermal aging, and contacting the rubber composition with the metal surface.
Claim 16
Dependent Claim
14 words
A method as claimed in claim 13 wherein the magnesium compound is magnesium oxide.
Claim 17
Dependent Claim
30 words
A method as claimed in claim 9 wherein the metal surface is selected from the group consisting of steel, copper, zinc, copper alloys, zinc alloys, and copper and zinc alloys.
Claim 18
Dependent Claim
14 words
A method as claimed in claim 15 wherein the magnesium compound is magnesium oxide.
Claim 19
Dependent Claim
13 words
A method as claimed in claim 15 wherein the metal atom is boron.
Claim 20
Dependent Claim
14 words
A method as claimed in claim 17 wherein the magnesium compound is magnesium oxide.
Claim 21
Dependent Claim
43 words
A method as claimed in claim 17 wherein the carboxylated cobalt oxy metal complex has the formula ##STR9## wherein R is a straight chain organic radical having at least 7 carbon atoms, and R 1 is an alkoxy, aryloxy, acyloxy or ##STR10## radical.
Claim 22
Dependent Claim
14 words
A method as claimed in claim 19 wherein the magnesium compound is magnesium oxide.
Claim 23
Dependent Claim
16 words
A method as claimed in claim 19 wherein R has from 9 to 11 carbon atoms.
Claim 24
Dependent Claim
14 words
A method as claimed in claim 21 wherein the magnesium compound is magnesium oxide.
Claim 25
Dependent Claim
42 words
A method as claimed in claim 17 wherein the carboxylated cobalt oxy metal complex has the formula ##STR11## wherein R is a straight chain organic radical having at least 7 carbon atoms, and R 1 is alkoxy, aryloxy, acyloxy or ##STR12## radical.
Claim 26
Dependent Claim
14 words
A method as claimed in claim 23 wherein the magnesium compound is magnesium oxide.
Claim 27
Dependent Claim
16 words
A method as claimed in claim 23 wherein R has from 9 to 11 carbon atoms.
Claim 28
Dependent Claim
14 words
A method as claimed in claim 25 wherein the magnesium compound is magnesium oxide.
Claim 29
Dependent Claim
127 words
A composition comprising a magnesium compound capable of donating electrons and a carboxylated cobalt oxy metal complex comprising at least one metal atom selected from Groups IIIA, IIIB, IVA, IVB, VA and VB of the Periodic Table, at least one cobalt atom, said metal and cobalt atoms being linked through oxygen atoms, at least on acyloxy radical attached to a cobalt atom, and any residual valences of said complex being satisfied by acyloxy, aryloxy or alkoxy radicals, said magnesium compound and said cobalt complex being used in small amounts which are sufficient for obtaining a high level of adhesion between a highly unsaturated rubber and a metal surface and improving the retention of such adhesion after the thermal aging when the composition is used in the rubber.
Claim 30
Dependent Claim
127 words
A composition comprising a magnesium compound capable of donating electrons and a carboxylated cobalt oxy metal complex comprising at least one metal atom selected from Groups IIIA, IIIB, IVA, IVB, VA and VB of the Periodic Table, at least one cobalt atom, said metal and cobalt atoms being linked through oxygen atoms, at least on acyloxy radical attached to a cobalt atom, and any residual valences of said complex being satisfied by acyloxy, aryloxy or alkoxy radicals, said magnesium compound and said cobalt complex being used in small amounts which are sufficient for obtaining a high level of adhesion between a highly unsaturated rubber and a metal surface and improving the retention of such adhesion after the thermal aging when the composition is used in the rubber.
Claim 31
Dependent Claim
14 words
A composition as claimed in claim 27 wherein the magnesium compound is magnesium oxide.
Claim 32
Dependent Claim
13 words
A composition as claimed in claim 27 wherein the metal atom is boron.
Claim 33
Dependent Claim
14 words
A composition as claimed in claim 29 wherein the magnesium compound is magnesium oxide.
Claim 34
Dependent Claim
43 words
A composition as claimed in claim 29 wherein the carboxylated cobalt oxy metal complex has the formula ##STR13## wherein R is a straight chain organic radical having at least 7 carbon atoms, and R 1 is an alkoxy, aryloxy, acyloxy or ##STR14## radical.
Claim 35
Dependent Claim
14 words
A composition as claimed in claim 31 wherein the magnesium compound is magnesium oxide.
Claim 36
Dependent Claim
16 words
A composition as claimed in claim 31 wherein R has from 9 to 11 carbon atoms.
Claim 37
Dependent Claim
14 words
A composition as claimed in claim 33 wherein the magnesium compound is magnesium oxide.
Claim 38
Dependent Claim
43 words
A composition as claimed in claim 29 wherein the carboxylated cobalt oxy metal complex has the formula ##STR15## wherein R is a straight chain organic radical having at least 7 carbon atoms, and R 1 is an alkoxy, aryloxy, acyloxy or ##STR16## radical.
Claim 39
Dependent Claim
14 words
A composition as claimed in claim 35 wherein the magnesium compound is magnesium oxide.
Claim 40
Dependent Claim
16 words
A composition as claimed in claim 35 wherein R has from 9 to 11 carbon atoms.
Claim 41
Dependent Claim
14 words
A composition as claimed in claim 37 wherein the magnesium compound is magnesium oxide.
References Cited (Backward Citations)
US3296242A
Cited
US3903026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |