Processes to Form Ethylene-Based Polymers Using Asymmetrical Polyenes
US-2017335034-A1 · Nov 23, 2017 · US
Article coated with a composition comprising polyethylene prepared with a single site catalyst
US9353283B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9353283-B2 |
| Application number | US-200913140342-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 25, 2009 |
| Priority date | Dec 31, 2008 |
| Publication date | May 31, 2016 |
| Grant date | May 31, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention relates to an article coated with a composition comprising (A) an ethylene homo- or copolymer resin which has been prepared by using a single-site catalyst further characterized in that component (A) has an MFR 21 , measured according to ISO 1133 at 190° C. and under a load of 21.6 kg, from 0.01 to 20 g/10 min. The present invention further relates to an article coated with a composition comprising (A) an ethylene homo- or copolymer resin which has been prepared by using a single-site catalyst further characterized in that component (A) has an impact strength at −40° C. of at least 80 kJ/m 2 in a Charpy notched test according to ISO ISO 179-1/1eA:2000 with a pendulum energy of 15 J. The invention is furthermore directed to the use of the composition for the coating of an article.
First claim
Opening claim text (preview).
The invention claimed is: 1. A pipe coated with a composition comprising (A) an ethylene homopolymer resin which has been prepared by using a single-site catalyst, wherein the amount of component (A) is not less than 80 wt % of the composition, further characterized in that component (A) has an MFR 21 , measured according to ISO 1133 at 190° C. and under a load of 21.6 kg, from 0.01 to 20 g/10 min, a molecular weight distribution (MWD) of 1 to 5, and a density of at least 940 kg/m 3 , and is unimodal. 2. A pipe coated with a composition comprising (A) an ethylene homopolymer resin which has been prepared by using a single-site catalyst, wherein the amount of component (A) is not less than 80 wt. % of the composition, further characterized in that component (A) has an impact strength at −40° C. of at least 80 kJ/m 2 in a Charpy notched test according to ISO 179-1/1eA:2000 with a pendulum energy of 15 J, a molecular weight distribution (MWD) of 1 to 5, and a density of at least 940 kg/m 3 , and is unimodal. 3. The pipe according to claim 2 , wherein component (A) has an MFR 21 , measured according to ISO 1133 at 190° C. and under a load of 21.6 kg, from 0.01 to 20 g/10 min. 4. The pipe according to claim 1 or 2 , wherein the amount of component (A) is not less than 85 wt. % of the composition. 5. The pipe according to claim 1 or 2 , which is a steel pipe. 6. A method for coating a pipe with a composition comprising (A) an ethylene homopolymer resin which has been prepared by using a single-site catalyst, wherein the amount of component (A) is not less than 80 wt. % of the composition, further characterized in that component (A) has an MFR 21 , measured according to ISO 1133 at 190° C. and under a load of 21.6 kg, from 0.01 to 20 g/10 min, a molecular weight distribution (MWD) of 1 to 5, and a density of at least 940 kg/m 3 , and is unimodal. 7. A method for coating a pipe with a composition comprising (A) an ethylene homopolymer resin which has been prepared by using a single-site catalyst, wherein the amount of component (A) is not less than 80 wt. % of the composition, further characterized in that component (A) has an impact strength at −40° C. of at least 80 kJ/m 2 in a Charpy notched test according to ISO 179-1/1eA:2000 with a pendulum energy of 15 J, a molecular weight distribution (MWD) of 1 to 5, and a density of at least 940 kg/m 3 , and is unimodal. 8. The method according to claim 6 or 7 , further characterized in that the article is a steel pipe. 9. The method according to claim 8 , further characterized in that the composition is used as topcoat material for steel pipes for transport of oil or gas.
Assignees
Inventors
Classifications
Homopolymers or copolymers of unsaturated hydrocarbons; Derivatives thereof · CPC title
- C09D123/04Primary
Homopolymers or copolymers of ethene · CPC title
- C08L23/04Primary
Homopolymers or copolymers of ethene · CPC title
Polyethylene · CPC title
Multilayer [continuous layer] · CPC title
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Frequently asked questions
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- What does patent US9353283B2 cover?
- The present invention relates to an article coated with a composition comprising (A) an ethylene homo- or copolymer resin which has been prepared by using a single-site catalyst further characterized in that component (A) has an MFR 21 , measured according to ISO 1133 at 190° C. and under a load of 21.6 kg, from 0.01 to 20 g/10 min. The present invention further relates to an article coated wit…
- Who is the assignee on this patent?
- Voigt Björn, Anker Martin, Palmlöf Magnus, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C09D123/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 31 2016 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).