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Polyolefin additive, a sag resistant polyolefin and a method of preparing the same
US10227487B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10227487-B2 |
| Application number | US-201515532300-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 29, 2015 |
| Priority date | Dec 8, 2014 |
| Publication date | Mar 12, 2019 |
| Grant date | Mar 12, 2019 |
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- Title
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Abstract
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A polyolefin additive comprising chlorinated polyolefin grafted with an alkyl (meth)acrylate, wherein the alkyl has greater than 10 carbon atoms is provided. Further provided are a method for improving the sag resistance of polyolefins and sag resistant polyolefins.
First claim
Opening claim text (preview).
We claim: 1. A polyolefin composition comprising a polymer blend comprising one or more polyolefins and from 1 to 5 percent by weight of a polyolefin additive comprising chlorinated polyolefin grafted with an alkyl (meth)acrylate, wherein the alkyl has greater than 10 carbon atoms and wherein the alkyl of the alkyl (meth)acrylate is selected from the group consisting of stearyl, lauryl, and combinations thereof. 2. The polyolefin composition according to claim 1 , wherein the chlorinated polyolefin is chlorinated polyethylene. 3. The polyolefin composition according to claim 1 , wherein the chlorinated polyolefin grafted with an alkyl (meth)acrylate is selected from the group consisting of lauryl methacrylate grafted chlorinated polyethylene, stearyl methacrylate grafted chlorinated polyethylene, and combinations thereof. 4. The polyolefin composition according to claim 1 , wherein the chlorinated polyolefin grafted with an alkyl (meth)acrylate comprises from 40 to 60 wt % chlorinated polyolefin and from 40 to 60 wt % alkyl (meth) acrylate. 5. A method of improving the sag resistance of an olefin-based polymer comprising: adding from 1 to 5 wt % chlorinated polyolefin grafted with an alkyl (meth)acrylate to one or more polyolefins, wherein the alkyl of the alkyl (meth)acrylate is selected from the group consisting of stearyl, lauryl, and combinations thereof. 6. The method according to claim 5 , wherein the one or more polyolefins are selected from the group consisting of polypropylene, high density polyethylene, and linear low density polyethylene. 7. The method according to claim 5 , wherein the chlorinated polyolefin is chlorinated polyethylene. 8. The method according to claim 5 , wherein the chlorinated polyolefin grafted with an alkyl (meth)acrylate is selected from the group consisting of lauryl methacrylate grafted chlorinated polyethylene, stearyl methacrylate grated chlorinated polyethylene, and combinations thereof. 9. The method according to claim 5 , wherein the chlorinated polyolefin grafted with an alkyl (meth)acrylate comprises from 40 to 60 wt % chlorinated polyolefin and from 40 to 60 wt % alkyl (meth) acrylate. 10. A sag resistant polyolefin composition comprising: one or more polyolefins; and from 1 to 5 wt % chlorinated polyolefin grafted with an alkyl (meth)acrylate, wherein the alkyl has greater than 10 carbon atoms, and wherein the alkyl of the alkyl (meth)acrylate is selected from the group consisting of stearyl, lauryl, and combinations thereof. 11. The sag resistant polyolefin according to claim 10 , wherein the one or more polyolefins is selected from the group consisting of polypropylene, high density polyethylene, and linear low density polyethylene. 12. The sag resistant polyolefin according to claim 10 , wherein the chlorinated polyolefin is chlorinated polyethylene. 13. The sag resistant polyolefin according to claim 10 , wherein the chlorinated polyolefin grafted with an alkyl (meth)acrylate is selected from the group consisting of lauryl methacrylate grafted chlorinated polyethylene, stearyl methacrylate grated chlorinated polyethylene, and combinations thereof. 14. The sag resistant polyolefin according to claim 10 , wherein the chlorinated polyolefin grafted with an alkyl (meth)acrylate comprises from 40 to 60 wt % chlorinated polyolefin and from 40 to 60 wt % alkyl (meth) acrylate. 15. The sag resistant polyolefin according to claim 10 , wherein a milled and molded test strip produced from the sag resistant polyolefin exhibits a sag resistance greater than that exhibited by the one or more polyolefins in the absence of the chlorinated polyolefin grafted with an alkyl (meth)acrylate.
Assignees
Inventors
Classifications
- C08F255/023Primary
On to modified polymers, e.g. chlorinated polymers · CPC title
Polyethylene · CPC title
Esters · CPC title
- C08L51/06Primary
grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond · CPC title
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Frequently asked questions
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- What does patent US10227487B2 cover?
- A polyolefin additive comprising chlorinated polyolefin grafted with an alkyl (meth)acrylate, wherein the alkyl has greater than 10 carbon atoms is provided. Further provided are a method for improving the sag resistance of polyolefins and sag resistant polyolefins.
- Who is the assignee on this patent?
- Rohm & Haas
- What technology area does this patent fall under?
- Primary CPC classification C08F255/023. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 12 2019 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).