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:
Sep. 26, 2017
Filed:
Mar. 26, 2015
Saudi Basic Industries Corporation, Riyadh, SA;
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Robert Van Bodegom, Geleen, NL;
Joannes Augustinus Maria Van Kan, Geleen, NL;
Sjors Slots, Geleen, NL;
Robert Van Bodegom, Hoensbroek, NL;
Joannes Augustinus Maria Van Kan, Geulle, NL;
Sjors Slots, Beesel, NL;
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
SAUDI BASIC INDUSTRIES CORPORATION, Riyadh, SA;
Abstract
The invention relates to a process a system and a high pressure pump for the preparation of a copolymer of ethylene and a di- or higher functional (meth)acrylate in a tubular reactor, comprising the steps of: injecting ethylene at a pressure of 100 MPa to 350 MPa into the reactor from a high pressure compressor and injecting the (meth)acrylate at a pressure of 100 MPa to 350 MPa into the reactor from a high pressure pump, wherein the high pressure pump comprises—a pump suction chamber for receiving a medium to be compressed; —a cylinder for receiving the medium to be compressed from the pump suction chamber; —an outlet for discharging a compressed medium from the cylinder, —a seal fixed to the inner wall of the cylinder at an end of the cylinder distal to the outlet and—a plunger movable in the cylinder by sliding through the seal, wherein a leakage gap is present along the plunger and the leakage gap is fluidly connected to the pump suction chamber.