Production of polyurethane foams comprising polyolefin-based polyols
US-9982085-B2 · May 29, 2018 · US
Polybutadiene, production and use thereof
US10851189B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10851189-B2 |
| Application number | US-201816469855-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 16, 2018 |
| Priority date | Jan 16, 2017 |
| Publication date | Dec 1, 2020 |
| Grant date | Dec 1, 2020 |
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- Title
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Abstract
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The invention relates to polybutadiene, which contains the monomer units derived from 1,3-butadiene having a vinyl double bond in a proportion of 25 to 75 mole percent, having a trans-double bond in a proportion of 0 to 10 mole percent and a cis-double bond in a proportion of 25 to 75 mole percent, wherein the totality of the monomer units (A), (B) and (C) is supplemented to 100 mole percent, and which is characterized in that it has a number-average mole mass of 1,000 to 3,000 g/mole. The invention further relates to a method for producing polybutadienes, the use of the polybutadiene according to the invention and compositions containing polybutadiene according to the invention.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polybutadiene comprising monomer units derived from 1,3-butadiene wherein the proportion of monomer units of the formula (A) in the entirety of the monomer units derived from 1,3-butadiene present in the polybutadiene is 25 to 75 mole percent, the proportion of units of the formula (B) in the entirety of the monomer units derived from 1,3-butadiene present in the polybutadiene is from 2 to 6 mole percent and the proportion of monomer units of the formula (C) in the entirety of the monomer units derived from 1,3-butadiene present in the polybutadiene is 25 to 75 mole percent, wherein the entirety of the monomer units (A), (B) and (C) add up to 100 mole percent, and the polybutadiene has a number-average molar mass of 1000 to 3000 g/mol. 2. The polybutadiene according to claim 1 , wherein the polybutadiene has a viscosity of 2000 to 8000 mPa s at 20° C. 3. The polybutadiene according to claim 1 , wherein said polybutadiene has a dispersity of 2.1 to 3.0. 4. The polybutadiene according to claim 1 , wherein the proportion of monomer units of the formula (A) in the entirety of the monomer units derived from 1,3-butadiene present in the polybutadiene is 50 to 65 mole percent, the proportion of units of the formula (B) in the entirety of the monomer units derived from 1,3-butadiene present in the polybutadiene is 2 to 6 mole percent and the proportion of monomer units of the formula (C) in the entirety of the monomer units derived from 1,3-butadiene present in the polybutadiene is 25 to 40 mole percent, wherein the entirety of the monomer units (A), (B) and (C) add up to 100 mole percent, and the polybutadiene has a number-average molar mass of 1200 to 1700 g/mol. 5. A product comprising the polybutadiene according to claim 1 wherein the product is selected from the group consisting of rubber, synthetic rubber, tyres, adhesive formulations, coating compositions, flexographic printing plates, coating agents, coating agent components, in the recycling of rubber and as plasticizers. 6. A composition comprising the polybutadiene according to claim 1 or conversion products of polybutadiene with other compounds. 7. The composition according to claim 6 , wherein the proportion of the polybutadiene which are present in the composition or were used for preparing the conversion products, based on the composition, is from 0.1 to 90% by weight. 8. The polybutadiene according to claim 2 , wherein said polybutadiene has a dispersity of 2.1 to 3.0.
Assignees
Inventors
Classifications
Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons · CPC title
Butadiene · CPC title
- C08F36/06Primary
Butadiene · CPC title
Cobalt or compounds thereof · CPC title
in combination with an organoaluminium compound · CPC title
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- What does patent US10851189B2 cover?
- The invention relates to polybutadiene, which contains the monomer units derived from 1,3-butadiene having a vinyl double bond in a proportion of 25 to 75 mole percent, having a trans-double bond in a proportion of 0 to 10 mole percent and a cis-double bond in a proportion of 25 to 75 mole percent, wherein the totality of the monomer units (A), (B) and (C) is supplemented to 100 mole percent, a…
- Who is the assignee on this patent?
- Evonik Operations Gmbh
- What technology area does this patent fall under?
- Primary CPC classification C08F36/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 01 2020 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).