Vulcanizing composition containing cyclododecasulfur and improved cyclododecasulfur compound

US10011663B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10011663-B2
Application numberUS-201615015165-A
CountryUS
Kind codeB2
Filing dateFeb 4, 2016
Priority dateFeb 4, 2016
Publication dateJul 3, 2018
Grant dateJul 3, 2018

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A vulcanizing composition useful for the vulcanization of vulcanizable formulations is disclosed. The vulcanizing composition includes a vulcanizing agent which in turn includes a cyclododecasulfur compound. A cyclododecasulfur compound characterized by a DSC melt point onset of between 155° C. and 167° C. when measured at a DSC heat rate of 20° C./minute is also disclosed.

First claim

Opening claim text (preview).

The invention claimed is: 1. A vulcanizable elastomeric formulation comprising at least one elastomer and a vulcanizing agent, wherein said vulcanizing agent comprises a cyclododecasulfur compound. 2. The vulcanizable elastomeric formulation of claim 1 wherein said cyclododecasulfur compound is characterized by a DSC melt point onset of between 155° C. and 167° C. when measured at a DSC heat rate of 20° C./minute. 3. The vulcanizable elastomeric formulation of claim 1 wherein the amount of said cyclododecasulfur in said formulation is from 0.25 to 10 weight percent cyclododecasulfur based on the total weight of the formulation. 4. A vulcanizing agent masterbatch comprising (i) a vulcanizing agent in the amount of from 40 to 90 weight percent based on the total weight of the masterbatch and (ii) an elastomeric carrier, wherein said vulcanizing agent comprises a cyclododecasulfur compound. 5. A vulcanized elastomeric article formed from the vulcanizable elastomeric formulation of claim 1 .

Assignees

Inventors

Classifications

  • Thiazoles · CPC title

  • using a polymer as a carrier · CPC title

  • C08C19/20Primary

    Incorporating sulfur atoms into the molecule · CPC title

  • Sulfur · CPC title

  • Compositions of unspecified rubbers · CPC title

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What does patent US10011663B2 cover?
A vulcanizing composition useful for the vulcanization of vulcanizable formulations is disclosed. The vulcanizing composition includes a vulcanizing agent which in turn includes a cyclododecasulfur compound. A cyclododecasulfur compound characterized by a DSC melt point onset of between 155° C. and 167° C. when measured at a DSC heat rate of 20° C./minute is also disclosed.
Who is the assignee on this patent?
Eastman Chem Co
What technology area does this patent fall under?
Primary CPC classification C08C19/20. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jul 03 2018 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).