US5281360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barrier composition and articles made therefrom
Assignee: Ball Corp
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Filing: 1990-01-31
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Granted: 1994-01-25
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Expires: 2010-01-31
Abstract
Abstract Blends of polymers, such as aromatic condensation polymers including formable polyesters and polycarbonates with an oxygen barrier material such as aromatic or aliphatic nylon, an amorphous nylon or EVOH, which have been oriented and which contain a transition metal catalyst, exhibit the improved barrier properties and oxygen absorption properties of the present invention.
Inventors
- 👤 Kuo-Zong Hong
- 👤 Yong J. Kim
- 👤 Stephen W. Cornell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:36
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; B; B29; B29C; B29C49/00; B29C49/0005; C08K; C08K3/00; C08K3/02; C08K3/08; C08L69/00; B29C2949/00; B29C2949/07; B29C2949/0715; B29C2949/20; B29C2949/22; B29C2949/24; B29C2949/26; B29C2949/28; B29C2949/30; B29C2949/3024; B29C2949/3032; B29C49/02; B29C49/06; B29C49/071; B29K; B29K2995/00; B29K2995/0037; B29K2995/0065; B29K2995/0067; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1338; Y10T428/1341; Y10T428/1352; Y10T428/1355; Y10T428/1379; Y10T428/1397; Y10T428/31504; Y10T428/31725; Y10T428/31736; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
44 words
An improved oxygen barrier and oxygen absorbing composition comprising from 70% to 85% of an aromatic condensation polymer having blended therein from 30% to 15% of an oxygen barrier material and having from 49 ppm up to 250 ppm of a transition metal catalyst.
Claim 2
Dependent Claim
44 words
An improved oxygen barrier and oxygen absorbing composition comprising from 70% to 85% of an aromatic condensation polymer having blended therein from 30% to 15% of an oxygen barrier material and having from 49 ppm up to 250 ppm of a transition metal catalyst.
Claim 3
Dependent Claim
13 words
A composition according to claim 1 wherein the transition metal catalyst is cobalt.
Claim 4
Dependent Claim
27 words
A composition according to claim 1 wherein the transition metal catalyst is cobalt and is present in an amount of from 49 ppm up to 250 ppm.
Claim 5
Dependent Claim
25 words
A composition according to claim 1 wherein the aromatic condensation polymer is selected from the group consisting of a formable polyester and a formable polycarbonate.
Claim 6
Dependent Claim
11 words
A composition according to claim 4 wherein the polyester is PET.
Claim 7
Dependent Claim
25 words
A composition according to claim 4 wherein the aromatic condensation polymer is a polyester and wherein the oxygen barrier material is a xylylene group-containing polyamide.
Claim 8
Dependent Claim
29 words
A composition according to claim 1 wherein the oxygen barrier material is selected from the group consisting of aliphatic nylon, aromatic nylon, oriented amorphous nylon and oriented amorphous EVOH.
Claim 9
Dependent Claim
16 words
A composition according to claim 7 wherein the aromatic nylon is a xylylene group containing polyamide.
Claim 10
Dependent Claim
40 words
An improved oxygen barrier and oxygen absorbing composition comprising from 70% to 85% of a polyester or polycarbonate with from 30% to 15% xylylene group containing polyamide and from 49 ppm up to 250 ppm of a transition metal catalyst.
Claim 11
Dependent Claim
40 words
An improved oxygen barrier and oxygen absorbing composition comprising from 70% to 85% of a polyester or polycarbonate with from 30% to 15% xylylene group containing polyamide and from 49 ppm up to 250 ppm of a transition metal catalyst.
Claim 12
Dependent Claim
11 words
A composition according to claim 9 wherein the catalyst is cobalt.
Claim 13
Dependent Claim
21 words
A composition according to claim 10 where the cobalt is present in the range of 49 ppm to about 110 ppm.
Claim 14
Dependent Claim
35 words
An improved oxygen barrier and oxygen absorbing composition comprising from 70% to 85% polyester and from 30% to 15% xylene group-containing polyamide and from 49 ppm up to 250 ppm of a transition metal catalyst.
Claim 15
Dependent Claim
35 words
An improved oxygen barrier and oxygen absorbing composition comprising from 70% to 85% polyester and from 30% to 15% xylene group-containing polyamide and from 49 ppm up to 250 ppm of a transition metal catalyst.
Claim 16
Dependent Claim
11 words
A composition according to claim 12 wherein the catalyst is cobalt.
Claim 17
Dependent Claim
21 words
A composition according to claim 12 wherein the cobalt is present in the range of 49 ppm to about 110 ppm.
Claim 18
Dependent Claim
17 words
A composition according to claim 14 the cobolt is present in an amount of about 62 ppm.
Claim 19
Dependent Claim
16 words
A composition according to claim 12 wherein the polyester is 85% and the polyamide is 15%.
Claim 20
Dependent Claim
11 words
A composition according to claim 16 wherein the catalyst is cobalt.
Claim 21
Dependent Claim
21 words
A composition according to claim 17 wherein the cobalt is present in the range of 49 ppm to about 110 ppm.
Claim 22
Dependent Claim
18 words
A composition according to claim 18 wherein the cobalt is present in an amount of about 62 ppm.
Claim 23
Dependent Claim
18 words
A composition according to claim 19 wherein the cobalt is present in an amount of about 62 ppm.
Claim 24
Dependent Claim
16 words
A composition according to claim 12 wherein the polyester is 70% and the polyamide is 30%.
Claim 25
Dependent Claim
11 words
A composition according to claim 21 wherein the catalyst is cobalt.
Claim 26
Dependent Claim
21 words
A composition according to claim 22 wherein the cobalt is present in the range of 49 ppm to about 110 pp.
Claim 27
Dependent Claim
18 words
A composition according to claim 23 wherein the cobalt is preset in an amount of about 62 ppm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-24 | 1997-07-26 | 1998-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-24 | 2001-07-26 | 2002-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-24 | 2005-07-26 | 2006-01-25 | $7700.00 | Window Closed / Lapsed |