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US3755207A
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Vulcanizable epihalohydrin polymer composition
Assignee: Zeon Corp
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Filing: 1972-02-25
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Granted: 1973-08-28
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Expires: 1992-02-25
Abstract
Abstract A vulcanizable epihalohydrin-polymer elastomer comprising (1) an epihalohydrin-polymer elastomer, (2) at least one metal cyanate selected from the group consisting of cyanates of matals of Groups IA, IB, IIA, IIB and IVB of the periodic table, and (3) a functional compound selected from the group consisting of (i) compounds obtained by substituting at least two hydroxyl groups or mercapto groups for hydrogen atoms in a saturated hydrocarbon molecule, (ii) compounds obtained by substituting at least one hydroxyl group and at least one mercapto group for hydrogen atoms in a saturated hydrocarbon molecule, and (iii) compounds obtained by substituting at least one hydroxyl group and for mercapto group and one amino or imino group for hydrogen atoms in a saturated hydrocarbon molecule.
Inventors
- 👤 T Karatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:51
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/02; C08L71/03; C08K; C08K13/00; C08K13/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
21 words
The composition of claim 1, wherein said epihalohydrin polymer elastomer is an epichlorohydrin homopolymer rubber or an epichlorohydrin-ethylene oxide copolymer rubber.
Claim 2
Dependent Claim
17 words
The composition of claim 1, wherein said metal cyanate is sodium cyanate, potassium cyanate, or lead cyanate.
Claim 3
Dependent Claim
21 words
The composition of claim 1, wherein said functional compound is a compound having 2 to 6 hydroxyl groups in the molecule.
Claim 4
Dependent Claim
145 words
A process for vulcanizing an epihalohydrin polymer elastomer, which comprises heating the epihalohydrin polymer elastomer at a temperature of about 120* to 180*C. in the presence of at least one metal cyanate selected from the group consisting of cyanates of metals of Groups IA, IB, IIA, IIB and IVB of the periodic table, and a functional compound selected from the group consisting of (i) compounds obtained by substituting at least two hydroxyl groups or mercapto groups for hydrogen atoms in a saturated hydrocarbon molecule, (ii) compounds obtained by substituting at least one hydroxyl group and at least one mercapto group for hydrogen atoms in a saturated hydrocarbon molecule, and (iii) compounds obtained by substituting at least one hydroxyl group or mercapto group or at least one hydroxyl group and mercapto group and one amino or imino group for hydrogen atoms in a saturated hydrocarbon molecule.
Claim 5
Dependent Claim
156 words
A vulcanizable epihalohydrin polymer elastomer comprising (1) an epihalohydrin polymer elastomer, (2) at least one metal cyanate selected from the group consisting of cyanates of metals of Groups IA, IB, IIA, IIB and IVB of the periodic table, (3) a functional compound selected from the group consisting of (i) compounds obtained by substituting at least two hydroxyl groups or mercapto groups for hydrogen atoms in a saturated hydrocarbon molecule, (ii) compounds obtained by substituting at least one hydroxyl group and at least one mercapto group for hydrogen atoms in a saturated hydrocarbon molecule, and (iii) compounds obtained by substituting at least one hydroxyl group or mercapto group or at least one hydroxyl group and mercapto group and one amino or imino group for hydrogen atoms in a saturated hydrocarbon molecule, and (4) at least one metal oxide selected from the group consisting of the oxides of metal of Groups IIB and IVB of the periodic table.
Claim 6
Dependent Claim
21 words
The composition of claim 6, wherein said epihalohydrin polymer elastomer is an epichlorohydrin homopolymer rubber or an epichlorohydrin-ethylene oxide copolymer rubber.
Claim 7
Dependent Claim
17 words
The composition of claim 6, wherein said metal cyanate is sodium cyanate, potassium cyanate, or lead cyanate.
Claim 8
Dependent Claim
21 words
The composition of claim 6, wherein said functional compound is a compound having 2 to 6 hydroxyl groups in the molecule.
Claim 9
Dependent Claim
14 words
The composition of claim 6, wherein said metal oxide is magnesia or red lead.
Claim 10
Dependent Claim
170 words
A process for vulcanizing an epihalohydrin polymer elastomer, which comprises heating the epihalohydrin polymer elastomer at a temperature of about 120* to 180*C. in the presence of at least one metal cyanate selected from the group consisting of cyanates of metals of Groups IA, IB, IIA, IIB and IVB of the periodic table, a functional compound selected from the group consisting of (i) compounds obtained by substituting at least two hydroxyl groups or mercapto groups for hydrogen atoms in a saturated hydrocarbon molecule, (ii) compounds obtained by substituting at least one hydroxyl group and at least one mercapto group for hydrogen atoms in a saturated hydrocarbon molecule, and (iii) compounds obtained by substituting at least one hydroxyl group or mercapto group or at least one hydroxyl group and mercapto group and one amino or imino group for hydrogen atoms in a saturated hydrocarbon molecule, and (4) at least one metal oxide selected from the group consisting of the oxides of metal of Groups IIB and IVB of the periodic table.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |