Oxygen scavenging compositions comprising polymers derived from benzenedimethanol monomers
First Claim
1. An oxygen scavenging composition, comprising:
- an oxygen scavenging polymer comprising structure I;
X—
R—
X—
O—
CH2—
Ar—
CH2—
O
,
(I) wherein —
R—
is selected from the group consisting of C1-C24 alkyl, C1-C24 substituted alkyl, C6-C24 aryl, and C6-C24 substituted aryl;
—
Ar—
is selected from the group consisting of C6-C24 aryl and C6-C24 substituted aryl; and
—
X—
is selected from the group consisting of null and —
C(═
O)—
;
a transition metal oxidation catalyst; and
an energy-absorbing compound selected from the group consisting of microwave reactive materials and photoinitiators having a wavelength of maximum absorption of electromagnetic radiation from about 200 nm to about 750 nm.
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Abstract
Herein is disclosed an oxygen scavenging composition, comprising (i) an oxygen scavenging polymer comprising structure I:
X—R—X—O—CH2—Ar—CH2—O, (I)
wherein —R— is selected from the group consisting of C1-C24 alkyl, C1-C24 substituted alkyl, C6-C24 aryl, and C6-C24 substituted aryl; —Ar— is selected from the group consisting of C6-C24 aryl and C6-C24 substituted aryl; and —X— is selected from the group consisting of null and —C(═O)—; (ii) a transition metal oxidation catalyst; and (iii) an energy-absorbing compound selected from the group consisting of microwave reactive materials and photoinitiators having a wavelength of maximum absorption of electromagnetic radiation from about 200 nm to about 750 nm. The oxygen scavenging composition can be used to form an oxygen barrier packaging article.
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Citations
32 Claims
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1. An oxygen scavenging composition, comprising:
-
an oxygen scavenging polymer comprising structure I;
X—
R—
X—
O—
CH2—
Ar—
CH2—
O
,
(I)wherein —
R—
is selected from the group consisting of C1-C24 alkyl, C1-C24 substituted alkyl, C6-C24 aryl, and C6-C24 substituted aryl;
—
Ar—
is selected from the group consisting of C6-C24 aryl and C6-C24 substituted aryl; and
—
X—
is selected from the group consisting of null and —
C(═
O)—
;
a transition metal oxidation catalyst; and
an energy-absorbing compound selected from the group consisting of microwave reactive materials and photoinitiators having a wavelength of maximum absorption of electromagnetic radiation from about 200 nm to about 750 nm. - View Dependent Claims (2, 3, 4, 5, 6)
-
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7. An oxygen barrier packaging article, comprising:
-
an oxygen scavenging polymer comprising structure I;
X—
R—
X—
O—
CH2—
Ar—
CH2—
O
,
(I)wherein —
R—
is selected from the group consisting of C1-C24 alkyl, C1-C24 substituted alkyl, C6-C24 aryl, and C6-C24 substituted aryl;
—
Ar—
is selected from the group consisting of C6-C24 aryl and C6-C24 substituted aryl; and
—
X—
is selected from the group consisting of null and —
C(═
O)—
;
a transition metal oxidation catalyst; and
an energy-absorbing compound selected from the group consisting of microwave reactive materials and photoinitiators having a wavelength of maximum absorption of electromagnetic radiation from about 200 nm to about 750 nm. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
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25. A method of initiating oxygen scavenging by an oxygen scavenging composition, comprising:
-
(a) providing an oxygen scavenging composition, comprising;
(i) an oxygen scavenging polymer comprising structure I;
X—
R—
X—
O—
CH2—
Ar—
CH2—
O
,
(I)
wherein —
R—
is selected from the group consisting of C1-C24 alkyl, C1-C24 substituted alkyl, C6-C24 aryl, and C6-C24 substituted aryl;
—
Ar—
is selected from the group consisting of C6-C24 aryl and C6-C24 substituted aryl; and
—
X—
is selected from the group consisting of null and —
C(═
O)—
;
(ii) a transition metal oxidation catalyst; and
(iii) an energy-absorbing compound selected from the group consisting of microwave reactive materials and photoinitiators having a wavelength of maximum absorption of electromagnetic radiation from about 200 nm to about 750 nm; and
(b) exposing the oxygen scavenging composition to electromagnetic radiation for a duration sufficient to initiate oxygen scavenging by the oxygen scavenging composition. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification