Blends of Cyclic Olefin Copolymers and Films Prepared Therefrom
US-2020172715-A1 · Jun 4, 2020 · US
Dicyclopentadiene based resin compositions and articles manufactured therefrom
US9909004B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9909004-B2 |
| Application number | US-201314390808-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2013 |
| Priority date | May 25, 2012 |
| Publication date | Mar 6, 2018 |
| Grant date | Mar 6, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
A composition including at least one elastomer, and a hydrocarbon polymer additive having a dicyclopentadiene, cyclopentadiene, and methylcyclopentadiene derived content of about 40 wt % to about 80 wt % of the total weight of the hydrocarbon polymer additive, a weight average molecular weight of about 100 g/mole to about 800 g/mole, and a softening point of about 110° C. to about 150° C. as determined in accordance with ASTM D6090.
First claim
Opening claim text (preview).
What is claimed is: 1. A tire tread comprising a composition comprising: about 33 wt % to about 75 wt % of at least one elastomer, and about 3 wt % to about 10 wt % of a hydrocarbon polymer additive comprising all three of a dicyclopentadiene, cyclopentadiene, and methylcyclopentadiene derived aggregate content of about 40 wt % to about 80 wt % of the total weight of the hydrocarbon polymer additive, a weight average molecular weight of about 100 g/mole to about 800 g/mole, and a softening point of about 110° C. to about 140° C. as determined in accordance with ASTM D6090; and wherein the tire tread has a tan delta at 60° C. of 0.206 to 0.203; a tan delta at −15° C. of 0.642 to 0.672 and a modulus at 300% of 1366 to 1464 psi. 2. The tire tread of claim 1 , wherein the weight average molecular weight of the hydrocarbon polymer additive is about 200 g/mole to about 600 g/mole. 3. The tire tread of claim 1 , wherein the softening point of the hydrocarbon polymer additive is about 115° C. to about 140° C. 4. The tire tread of claim 1 , wherein the hydrocarbon polymer additive further comprises one or more aromatic hydrocarbon components. 5. The tire tread of claim 4 , wherein the one or more aromatic hydrocarbon components comprises one or more of styrene, alpha-methylstyrene, beta-methylstyrene, indene, methylindenes, and vinyl toluenes. 6. The tire tread of claim 1 , wherein the weight average molecular weight of the hydrocarbon polymer additive ranges from greater than about 400 g/mol to about 800 g/mole, and wherein the tire tread has a tan delta at 0° C. of 0.429 to 0.45.
Assignees
Inventors
Classifications
Copolymers of hydrocarbons and mineral oils, e.g. petroleum resins · CPC title
Iso-olefin halogenated homopolymers or copolymers · CPC title
- C08F232/06Primary
having two or more carbon-to-carbon double bonds · CPC title
Compositions of the sidewalls · CPC title
Compositions of unspecified rubbers · CPC title
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- What does patent US9909004B2 cover?
- A composition including at least one elastomer, and a hydrocarbon polymer additive having a dicyclopentadiene, cyclopentadiene, and methylcyclopentadiene derived content of about 40 wt % to about 80 wt % of the total weight of the hydrocarbon polymer additive, a weight average molecular weight of about 100 g/mole to about 800 g/mole, and a softening point of about 110° C. to about 150° C. as de…
- Who is the assignee on this patent?
- Exxonmobil Chemical Patents Inc
- What technology area does this patent fall under?
- Primary CPC classification C08F232/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 06 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).