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.

Date of Patent:
Jun. 03, 2003

Filed:

Nov. 27, 2000
Applicant:
Inventors:

Gangfeng Cai, Danville, CA (US);

Ta Yen Ching, Novato, CA (US);

Hu Yang, San Ramon, CA (US);

Assignee:

Chevron Phillips Chemical Company LP, The Woodlands, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 2/026 ; B01J 2/300 ; C09K 1/504 ; C09K 1/506 ;
U.S. Cl.
CPC ...
B01J 2/026 ; B01J 2/300 ; C09K 1/504 ; C09K 1/506 ;
Abstract

The disclosed invention is directed to an oxygen scavenging composition that comprises at least one oxygen scavenging polymer and at least one vinyl crosslinker. The oxygen scavenging polymer comprises a polymeric backbone, at least two backbone crosslinking functional groups that are carbon-carbon double bonds in the backbone and at least one cyclic organic moiety having from 5 to 9 carbon atoms in its ring, and at least one carbon-carbon double bond in its ring. The vinyl crosslinker comprises at least two functional groups that are capable of reacting with the crosslinking functional groups of the oxygen scavenging polymer. Vinyl crosslinkers that can be used include styrene and methyl acrylate, among others.


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