Process for making a fabricated article from polyolefin

Patent metadata

Field	Value
Publication number	US-2018038013-A1
Application number	US-201615551962-A
Country	US
Kind code	A1
Filing date	Apr 7, 2016
Priority date	Apr 27, 2015
Publication date	Feb 8, 2018
Grant date	—

Abstract

In one instance, the present disclosure describes a method for preparing a carbonaceous article comprising: providing a crosslinked polyolefin fabricated article; stabilizing the crosslinked polyolefin fabricated article by air oxidation to provide a stabilized fabricated article; treating with a boron-containing liquid (BCL) during or intermediate to at least one of the preceding steps; and carbonizing the stabilized fabricated article. In one instance the present disclosure describes a method for preparing a stabilized article.

First claim

What is claimed is:

1 . A method for preparing a carbonaceous article comprising:
(a) providing an olefin resin; (b) forming a fabricated article from the olefin resin; (c) crosslinking the fabricated article; (d) stabilizing the fabricated article by air oxidation; (e) treating with a boron-containing liquid (BCL) during or intermediate to at least one of the preceding steps; and (f) carbonizing the stabilized fabricated article.

2 . The method of claim 1 , wherein the BCL is a boron source suitable for depositing boron in the fabricated article.

3 . The method of claim 2 , wherein the boron source is elemental boron, borane, borate, borinic acid, boronic acid, boric acid, borinic ester, boronic ester, boroxine, aminoborane, borazine, borohydrides and derivatives and combinations thereof.

4 . The method of claim 1 , wherein step (d) comprises heating the fabricated article at or above 120° C.

5 . The method of claim 1 , wherein step (b) comprises converting said polyolefin resin to a fabricated article by fiber spinning, film extrusion casting, blown film processing, profile extrusion through a die, injection molding, solution casting or compression molding.

6 . A method for preparing a carbonaceous article comprising:
(a) providing a crosslinked polyolefin fabricated article; (b) stabilizing the crosslinked polyolefin fabricated article by air oxidation to provide a stabilized fabricated article; (c) treating with a boron-containing liquid (BCL) during or intermediate to at least one of the preceding steps; and (d) carbonizing the stabilized fabricated article.

7 . The method of claim 6 , wherein the BCL is a boron source suitable for depositing boron in the fabricated article.

8 . The method of claim 7 , wherein the boron source is elemental boron, borane, borate, borinic acid, boronic acid, boric acid, borinic ester, boronic ester, boroxine, aminoborane, borazine, borohydrides and derivatives and combinations thereof.

9 . The method of claim 6 , wherein step (b) comprises heating the crosslinked fabricated article at or above 120° C.

Assignees

• Dow Global Technologies Llc

Inventors

• Hukkanen Eric J
• Barton Bryan E
• Billovits Gerald F
• Patton Jasson T
• Nicoli Edoardo
• Peterson Thomas H

Classifications

• C08F10/00

  Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond · CPC title

• D06M13/51

  Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond · CPC title

• D01F6/30

  comprising olefins as the major constituent · CPC title

• D01F9/21

  from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• D01F6/04 Primary

  from polyolefins · CPC title