US4421804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottle for carbonated drink
Assignee: Nippon Closures Co Ltd
•
Filing: 1981-09-11
•
Granted: 1983-12-20
•
Expires: 2001-09-11
Abstract
Abstract Disclosed is a bottle for a carbonated drink, which is formed by biaxial draw-blow molding of a polyester containing a surface active agent and being composed mainly of ethylene terephthalate units, wherein at least the barrel wall portion of the bottle is molecularly oriented biaxially so that the density is at least 1.34 g/cm3 as measured at 20 DEG C., and the surface active agent is distributed in the surface of the barrel wall portion so that the contact angle of the surface of the barrel wall portion to water is not larger than 76 DEG . In this bottle, the speed of transfer of carbon dioxide gas from the liquid phase of the drink to the gas phase at the time of opening the bottle is controlled to a very low level. Accordingly, occurrence of the cap missile phenomenon at the time of removing the cap from the bottle or reduction of the carbon dioxide content in the drink at the time of repeating sealing and opening of the bottle can effectively be prevented.
Inventors
- 👤 Fumio Mori
- 👤 Junichi Itsubo
- 👤 Hiroyuki Oda
- 👤 Gunji Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:20
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; B; B29; B29C; B29C49/00; B29C49/0005; B65; B65D; B65D1/00; B65D1/02; B65D1/0207; C08L; C08L67/00; C08L67/02; B29C2949/00; B29C2949/20; B29C2949/22; B29C2949/24; B29C2949/26; B29C2949/28; B29C2949/30; B29C2949/3024; B29C2949/3032; B29C2949/3041; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1397
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
112 words
A bottle for a carbonated drink, which is formed by biaxial draw-blow molding of a polyester containing a surface active agent and being composed mainly of ethylene terephthalate units, wherein at least the barrel wall portion of the bottle is molecularly oriented biaxially so that the density is from 1.34 to 1.40 g/cm 3 as measured at 20° C., and the surface active agent is distributed in the surface of the barrel wall portion so that the contact angle of the surface of the barrel wall portion to water is not larger than 76°, the surface active agent being incorporated in an amount of at least 10 ppm based on the polyester.
Claim 2
Dependent Claim
112 words
A bottle for a carbonated drink, which is formed by biaxial draw-blow molding of a polyester containing a surface active agent and being composed mainly of ethylene terephthalate units, wherein at least the barrel wall portion of the bottle is molecularly oriented biaxially so that the density is from 1.34 to 1.40 g/cm 3 as measured at 20° C., and the surface active agent is distributed in the surface of the barrel wall portion so that the contact angle of the surface of the barrel wall portion to water is not larger than 76°, the surface active agent being incorporated in an amount of at least 10 ppm based on the polyester.
Claim 3
Dependent Claim
27 words
A bottle as set forth in claim 1, wherein the surface active agent is incorporated in an amount of 100 to 5000 ppm based on the polyester.
Claim 4
Dependent Claim
21 words
A bottle as set forth in claim 1, wherein the surface active agent is a non-ionic or anionic surface active agent.
Claim 5
Dependent Claim
66 words
A bottle as set forth in claim 1, wherein the surface active agent is a non-ionic or anionic surface active agent having a bubbling force of at least 10 mm and a specific surface tension of less than 0.95, as determined with respect to a solution having a sample concentration of 0.1% at a test temperature of 25° C., according to the method of JIS K-3362.
Claim 6
Dependent Claim
27 words
A bottle as set forth in claim 1, wherein the surface active agent is incorporated in an amount of 100 to 5,000 ppm based on the polyester.
Claim 7
Dependent Claim
19 words
A bottle as set forth in claim 1, wherein the surface active agent is a glycerin fatty acid ester.
Claim 8
Dependent Claim
19 words
A bottle as set forth in claim 1, wherein the surface active agent is a sorbitan fatty acid ester.
Claim 9
Dependent Claim
20 words
A bottle as set forth in claim 1, wherein the surface active agent is a propylene glycol fatty acid ester.
Claim 10
Dependent Claim
26 words
A bottle as set forth in claim 1, wherein the surface active agent is a polyoxyethylene glycerin fatty acid ester or polyoxyethylene sorbitan fatty acid ester.
Claim 11
Dependent Claim
19 words
A bottle as set forth in claim 1, wherein the surface active agent is a polyglycerin fatty acid ester.
Claim 12
Dependent Claim
32 words
A bottle as set forth in claim 1, wherein the barrel wall portion is molecularly oriented so that the density of the barrel wall portion is 1.345 to 1.40 g/cm 3 .
Claim 13
Dependent Claim
33 words
A bottle as set forth in claim 1, wherein the ratio of the weight of the parison to the volume of the bottle is in the range of from 0.01 to 0.08 g/cc.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |