The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 2019
Filed:
Nov. 25, 2015
Borealis Ag, Vienna, AT;
Thomas Hjertberg, Kungshamn, SE;
Lars Lindgren, Gothenburg, SE;
Lena Lindbom, Kungalv, SE;
Roger Carlsson, Save, SE;
BOREALIS AG, Vienna, AT;
Abstract
A copolymer of ethylene with silane groups containing comonomer that is produced in a high pressure radical polymerization process comprising the steps of: (a) compressing ethylene together with the silane groups containing comonomer under pressure in a compressor, wherein a compressor lubricant is used for lubrication, (b) polymerizing ethylene together with the silane groups containing comonomer in a polymerization zone, (c) separating the obtained ethylene from the unreacted products and recovering the separated ethylene copolymer in a recovery zone, wherein in step a) the compressor lubricant comprises a mineral oil and ethylene copolymer has a silane groups containing comonomer content of 0.5 to 3 wt % and an MFR2 of 0.3 to 10 g/10 min. The co-polymer of ethylene with silane groups containing comonomer can be used.