Solidification of a natural rubber latex by polyquaternary polymers
US-2019177442-A1 · Jun 13, 2019 · US
Nitrile rubbers which optionally contain alkylthio terminal groups and which are optionally hydrogenated
US9034992B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9034992-B2 |
| Application number | US-201314022890-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 10, 2013 |
| Priority date | Jan 29, 2008 |
| Publication date | May 19, 2015 |
| Grant date | May 19, 2015 |
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Abstract
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An improved polymerization and process method allows the production of special nitrile rubbers which are characterized by a specific anion content and an excellent storage stability and allow a particularly good vulcanization rate and moreover result in vulcanized materials that have advantageous properties, especially with regard to the contact with metal components of molded parts based on said vulcanized materials.
First claim
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What is claimed is: 1. A process for producing nitrile rubbers by emulsion polymerization of at least one α,β-unsaturated nitrile, at least one conjugated diene and optionally one or more further copolymerizable monomers in the presence of a molecular weight regulator, with the latex which is obtained in the polymerization and contains the nitrile rubber being subjected to coagulation and the coagulated nitrile rubber subsequently being washed, characterized in that (i) the latex…
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Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
- C08C1/15Primary
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US9034992B2 cover?
- An improved polymerization and process method allows the production of special nitrile rubbers which are characterized by a specific anion content and an excellent storage stability and allow a particularly good vulcanization rate and moreover result in vulcanized materials that have advantageous properties, especially with regard to the contact with metal components of molded parts based on sa…
- Who is the assignee on this patent?
- Lanxess Deutschland Gmbh
- What technology area does this patent fall under?
- Primary CPC classification C08C1/15. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 19 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).