Copolymers of ethylene and selected acrylate esters

a technology of acrylate esters and copolymers, which is applied in the direction of catalytic reactions, group 3/13 element organic compounds, group 5/15 element organic compounds, etc., can solve the problems of long delay between, high cost of analysis, and adjustment of manufacturing systems to minimize homopolymer formation or adjust the level of acrylate incorporation
US20020028897A1Inactive Publication Date: 2002-03-07EI DU PONT DE NEMOURS & CO
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
EI DU PONT DE NEMOURS & CO
Publication Date
2002-03-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

In the copolymerization of ethylene and acrylate esters, the use of selected acrylate esters suppresses the formation of acrylate ester homopolymer, and / or allows the rapid analysis by 1H-NMR of the amount of homopolymer byproduct present in the copolymer, both aids in manufacturing high quality copolymers. Useful such acrylates include hexyl acrylate, 3,5,5-trimethylhexyl acrylate, 2-phenoxyethyl acrylate and 2-phenylethyl acrylate. The polymers are useful for films and molding resins.
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Description

[0001] This application claims priority under 35 U.S.C. .sctn.119 from U.S. Provisional Application Ser. Nos. 60 / 208,087 (filed May 31, 2000), 60 / 211,601 (filed Jun. 15, 2000), 60 / 214,036 (filed Jun. 23, 2000) and 60 / 264,537 (filed Jan. 25, 2001), all of which are incorporated by reference herein as if fully set forth.

[0002] Copolymers of ethylene and selected acrylate esters may be readily analyzed for the presence of acrylate ester homo-polymers, thereby rendering quality control during their manufacture cheaper and faster. A process for copolymer manufacture is also disclosed. The copolymers are useful for films and as molding resins.TECHNICAL BACKGROUND

[0003] Recently it has become possible to prepare copolymers of olefins, especially ethylene, with acrylate esters, using late transition metal polymerization catalysts. See for instance U.S. Pat. No. 5,866,663, and S. D. Ittel, et al., Chem. Rev., vol. 100, p. 1169-1203 (2000), both of which are incorporated by reference herein f...

Claims

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