US4650834A
Expired / Lapsed
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Vulcanizable epoxy group-containing elastomer composition
Assignee: Zeon Corp
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Filing: 1985-07-02
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Granted: 1987-03-17
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Expires: 2005-07-02
Abstract
Abstract A vulcanizable epoxy group-containing elastomer composition comprising an elastomer containing epoxy groups, a polycarboxylic acid having at least 2 carboxyl groups in the molecule, and either a quaternary ammonium salt or a quaternary phosphonium salt.
Inventors
- 👤 Shigelu Yagishita
- 👤 Kiyoshi Hosoya
- 👤 Tadaoki Okumoto
- 👤 Masatoshi Sugimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:30
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/027; C08C; C08C19/00; C08C19/30; C08C19/34; C08C19/40; C08G59/18; C08G59/20; C08G59/32; C08G59/3209; C08G59/40; C08G59/42; C08G59/68; C08G59/688
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
78 words
A vulcanizable epoxy group-containing elastomer comprising an elastomer having epoxy groups obtained by copolymerizing from 0.1 to 3% by weight of an epoxy group-containing ethylenically unsaturated monomer with 97 to 99.9% by weight of at least one monomer having a copolymerizable terminal vinyl or vinylidene group, a polycarboxylic acid having at least 2 carboxyl groups in the molecule, a quaternary compound selected from the group consisting of quaternary ammonium salts and quaternary phosphonium salts, and a processing aid.
Claim 2
Dependent Claim
78 words
A vulcanizable epoxy group-containing elastomer comprising an elastomer having epoxy groups obtained by copolymerizing from 0.1 to 3% by weight of an epoxy group-containing ethylenically unsaturated monomer with 97 to 99.9% by weight of at least one monomer having a copolymerizable terminal vinyl or vinylidene group, a polycarboxylic acid having at least 2 carboxyl groups in the molecule, a quaternary compound selected from the group consisting of quaternary ammonium salts and quaternary phosphonium salts, and a processing aid.
Claim 3
Dependent Claim
37 words
The composition of claim 1 comprising 100 parts by weight of the elastomer, 0.1 to 30 parts by weight of the polycarboxylic acid, and 0.1 to 10 parts by weight of the quaternary ammonium or phosphonium salt.
Claim 4
Dependent Claim
40 words
The composition of claim 1 or 2 wherein the polycarboxylic acid is a polycarboxylic acid selected from aliphatic compounds, alicyclic compounds, aromatic compounds and low-molecular-weight polymers containing at least 2 carboxyl groups in the molecule, or an acid anhydride thereof.
Claim 5
Dependent Claim
93 words
The composition of claim 1 or 2 wherein the quaternary ammonium or phosphonium salt is a compound represented by the formula ##STR2## wherein Y is a nitrogen or phosphorus atom, each of R 1 , R 2 , R 3 , and R 4 represents a hydrocarbon group, and two or three of these groups R 1 to R 4 may form together with Y a heterocyclic ring in which at least two ring atoms are carbon atoms and the remainder are oxygen, nitrogen, phosphorus or sulfur atoms, and X is an anion.
Claim 6
Dependent Claim
48 words
The composition of any one of claims 1 or 2 wherein the elastomer is an elastomer obtained by copolymerizing 0.3 to 3% by weight of an epoxy group-containing monomer with 97 to 99.7% by weight of at least one monomer having a copolymerizable terminal vinyl or vinylidene group.
Claim 7
Dependent Claim
37 words
The composition of claim 5 comprising 100 parts by weight of the elastomer, 0.1 to 20 parts by weight of the polycarboxylic acid and 0.1 to 5 parts by weight of the quaternary ammonium or phosphonium salt.
Claim 8
Dependent Claim
79 words
The composition of claim 4 wherein X is an anion derived from an inorganic or organic acid in which acidic hydrogen is bonded to a halogen or oxygen and is selected from the group consisting of Cl, Br, I, HSO 4 , H 2 PO 4 , R 3 COO, R 5 OSO 3 , R 5 SO or R 5 OPO 3 H wherein R 5 is the same hydrocarbon group as R 1 to R 4 .
References Cited (Backward Citations)
US3781379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-16 | 1990-09-15 | 1991-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-16 | 1994-09-15 | 1995-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-16 | 1998-09-15 | 1999-03-17 | $7700.00 | Window Closed / Lapsed |