Hydrogenated block copolymer and method for producing same
US-2015197588-A1 · Jul 16, 2015 · US
Dilithium initiators
US9732179B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9732179-B2 |
| Application number | US-201615189233-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 22, 2016 |
| Priority date | Jun 23, 2015 |
| Publication date | Aug 15, 2017 |
| Grant date | Aug 15, 2017 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Disclosed herein are highly active dilithio initiators prepared from high molecular weight dienes (C≧6) and methods for the preparation of such compounds. These dilithio initiators result in greater control over polymer microstructure and provide useful polymers and oligomers with low vinyl incorporation.
First claim
Opening claim text (preview).
What is claimed is: 1. A composition comprising: lithium, a solvent or solvent mixture, and a compound represented by the following formula I: wherein n is 1 or 2. 2. The composition of claim 1 , wherein the composition further comprises a catalyst. 3. The composition of claim 1 , wherein the solvent is a nonpolar hydrocarbon solvent. 4. The composition of claim 1 , wherein the solvent mixture is a blend of a nonpolar hydrocarbon solvent and a polar solvent. 5. The composition of claim 4 , wherein the solvent mixture comprises about 0.5% by weight to about 5% by weight of the polar solvent. 6. The composition of claim 1 , wherein the lithium is lithium metal. 7. The composition of claim 2 , wherein the catalyst is naphthalene. 8. The composition of claim 7 , wherein the catalyst further comprises a lithium alcoholate. 9. The composition of claim 8 , wherein the lithium alcoholate is lithium 2-butanolate. 10. The composition of claim 1 , wherein formula I is beta-farnesene. 11. The composition of claim 1 , wherein formula I is beta-myrcene.
Assignees
Inventors
Classifications
Polymerisation using regulators, e.g. chain terminating agents {, e.g. telomerisation} · CPC title
with conjugated dienes · CPC title
Butadiene · CPC title
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Compositions of derivatives of such polymers (C08L45/00 takes precedence; of conjugated diene rubbers C08L9/00 - C08L21/00) · CPC title
Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Adhesives based on derivatives of such polymers (C09J145/00 takes precedence; based on conjugated diene rubbers C09J109/00 - C09J121/00) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9732179B2 cover?
- Disclosed herein are highly active dilithio initiators prepared from high molecular weight dienes (C≧6) and methods for the preparation of such compounds. These dilithio initiators result in greater control over polymer microstructure and provide useful polymers and oligomers with low vinyl incorporation.
- Who is the assignee on this patent?
- Fina Technology
- What technology area does this patent fall under?
- Primary CPC classification C08F297/042. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 15 2017 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).