Cross-linked rubber
US-2017226254-A1 · Aug 10, 2017 · US
Carbamate ester compound and acrylic rubber composition containing the same
US11932644B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11932644-B2 |
| Application number | US-201917295186-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 14, 2019 |
| Priority date | Nov 20, 2018 |
| Publication date | Mar 19, 2024 |
| Grant date | Mar 19, 2024 |
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Abstract
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A carbamate ester compound represented by the general formula: Z—OCONH(CH 2 ) n NHCOO—Z [I] wherein Z is [i], [ii], or [iii] below, and n is an integer of 2 to 10, (wherein R 1 and R 2 are each independently a lower alkyl group having 1 to 5 carbon atoms, R 3 is a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms, and a is 1 or 2). The carbamate ester compound is used as a vulcanizing agent for carboxyl group-containing acrylic rubber and improves the delay of the vulcanization rate by scorch suppression.
First claim
Opening claim text (preview).
The invention claimed is: 1. A carbamate ester compound represented by the general formula: Z—OCONH(CH 2 ) n NHCOO—Z [I] wherein Z is [i] or [ii] below, and n is an integer of 2 to 10, wherein: R 1 is a lower alkyl group having 1 to 5 carbon atoms. 2. The carbamate ester compound according to claim 1 , wherein n in the formula [I] is 6. 3. The carbamate ester compound according to claim 1 , which is used as a vulcanizing agent for carboxyl group-containing acrylic rubber. 4. An acrylic rubber composition compound comprising 0.1 to 10 parts by weight of a carbamate ester compound represented by the general formula: Z—OCONH(CH 2 ) n NHCOO—Z [I] wherein Z is [i], [ii], or [iii] below, and n is an integer of 2 to 10, wherein: R 1 and R 2 are each independently a lower alkyl group having 1 to 5 carbon atoms, R 3 is a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms, and a is 1, as a vulcanizing agent based on 100 parts by weight of carboxyl group-containing acrylic rubber. 5. The acrylic rubber composition according to claim 4 , wherein 0.1 to 10 parts by weight of a guanidine compound vulcanization accelerator is further compounded. 6. The acrylic rubber composition according to claim 4 , wherein 0.01 to 2 parts by weight of a diazabicycloalkene compound vulcanization accelerator is further compounded. 7. The acrylic rubber composition according to claim 4 , wherein 0.1 to 5 parts by weight of an organic acid salts or inorganic acid salts of diazabicycloalkene compound vulcanization accelerator is further compounded. 8. A vulcanization molded article molded with mold from the acrylic rubber composition according to claim 4 . 9. A vulcanization molded article extrusion-molded from the acrylic rubber composition according to claim 4 .
Assignees
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Classifications
- C07D487/04Primary
Ortho-condensed systems · CPC title
characterised by the choice of material · CPC title
characterised by the choice of material · CPC title
Esters of carbamic acids · CPC title
with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms · CPC title
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- What does patent US11932644B2 cover?
- A carbamate ester compound represented by the general formula: Z—OCONH(CH 2 ) n NHCOO—Z [I] wherein Z is [i], [ii], or [iii] below, and n is an integer of 2 to 10, (wherein R 1 and R 2 are each independently a lower alkyl group having 1 to 5 carbon atoms, R 3 is a hydrogen atom or a lower alkyl …
- Who is the assignee on this patent?
- Unimatec Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07D487/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 19 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).