Method for Loading a Monomer to a Bulk Container

Patent metadata

Field	Value
Publication number	US-2016176610-A1
Application number	US-201615058789-A
Country	US
Kind code	A1
Filing date	Mar 2, 2016
Priority date	Feb 17, 2011
Publication date	Jun 23, 2016
Grant date	—

Abstract

This application is directed to a method for minimizing oxidative discoloration of a chemical compound such as a monomer during shipping, storing, and/or aging.

First claim

1 - 22 . (canceled)

23 . A method for off-loading an air-sensitive monomer susceptible to discoloration from a bulk shipping container, comprising:
(a) providing a positive pressure of an inert gas to the interior of the bulk shipping container; (b) adjusting the temperature of the bulk shipping container to maintain the flowability of the monomer; and (c) transferring the monomer to a receiving container under a positive pressure of the non-oxidative gas.

24 . The method of claim 23 , wherein the monomer comprises 2,6-xylenol

25 . The method of claim 23 , wherein the 2,6-xylenol is off-loaded from the bulk shipping container to the receiving container at a temperature that is greater than the melting temperature of 2,6-xylenol.

26 . The method of claim 23 , wherein the 2,6-xylenol is off-loaded at a temperature of from about 50-90° C.

27 . The method of claim 23 , wherein a positive pressure of the non-oxidative gas is maintained in the shipping container during loading.

28 . A container with an interior that is pressurized with a non-oxidative gas that contains a monomer susceptible to oxidative discoloration and an optional antioxidant.

29 . The container of claim 28 , wherein the non-oxidative gas is selected from the group consisting of argon, neon, and nitrogen, or mixtures thereof.

30 . The container of claim 28 , wherein the inert gas is nitrogen.

31 . The container of claim 28 , wherein the positive pressure in the interior is 5-20 psig nitrogen.

32 . The container of claim 28 , further comprising a pressure gauge and an oxygen gas (O 2 ) detector.

33 . The container of claim 28 , further comprising a pressure gauge and an oxygen gas (O 2 ) detector.

34 . The container of claim 28 , wherein the monomer comprises 2,6-xylenol.

35 - 46 . (canceled)

47 . A method for off-loading an air-sensitive monomer susceptible to discoloration from a bulk shipping container, comprising:
(a) maintaining a positive pressure of an inert gas to the interior of the bulk shipping container; (b) adjusting the temperature of the bulk shipping container to melt the monomer; and (c) transferring the melted monomer to a receiving container under a positive pressure of the non-oxidative gas.

Assignees

• Sabic Global Technologies Bv

Inventors

• Mortensen Eric

Classifications

• B65B63/08

  for heating or cooling articles or materials to facilitate packaging · CPC title

• B65D81/2076 Primary

  in an at least partially rigid container · CPC title

• B65D81/2053

  in an least partially rigid container · CPC title

• B65B31/00 Primary

  Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers · CPC title

• B65B31/02

  Filling, closing, or filling and closing, containers {or wrappers} in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas · CPC title