Patent US4501781A successfully refreshed from Google Patents.
US4501781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottle-shaped container
Assignee: Yoshino Kogyosho Co Ltd
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Filing: 1983-02-04
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Granted: 1985-02-26
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Expires: 2003-02-04
Abstract
Abstract A hollow blow-molded bottle-shaped container of biaxially oriented resin mixture material comprising a polyethylene terephthalate resin and a xylylene group-containing polyamide resin, wherein the resin mixture material contains 5 to 30% of the xylylene group-containing polyamide resin to the polyethylene terephthalate resin. In this container, inner and outer surface layers of the container are formed of the polyethylene terephthalate resin, and the intermediate layer of the container is formed of the mixture resin material. In this manner, the gas barrier properties of the container can be enhanced.
Inventors
- 👤 Hideo Kushida
- 👤 Sumio Takahashi
- 👤 Shuichi Koshio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:36
CPC Classifications
B; B32; B32B; B32B1/00; B29; B29C; B29C49/00; B29C49/22; B32B27/00; B32B27/06; B32B27/08; B32B27/34; B32B27/36; B65; B65D; B65D1/00; B65D1/02; B65D1/0207; B65D1/0215; B29C2949/00; B29C2949/30; B29C2949/3008; B29C2949/3009; B29C2949/3012; B29C2949/3016; B29C2949/302; B29C2949/3024; B29C2949/3026; B29C2949/3028; B29C2949/3032; B29C2949/3034; B29C2949/3036; B29K; B29K2067/00; B29K2077/00; B29K2105/00; B29K2105/25; B29K2105/253; B29K2995/00; B29K2995/0037; B29K2995/0065; B29K2995/0067; B29K2995/0068; B29K2995/0069; B32B2439/00; B32B2439/40; B32B2439/60; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1379; Y10T428/1383; Y10T428/31504; Y10T428/31725; Y10T428/31736; Y10T428/31786
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
21 words
A hollow blow-molded biaxially oriented bottle-shaped container comprising a mixture of a polyethylene terephthalate resin and a xylylene group-containing polyamide resin.
Claim 2
Dependent Claim
21 words
A hollow blow-molded biaxially oriented bottle-shaped container comprising a mixture of a polyethylene terephthalate resin and a xylylene group-containing polyamide resin.
Claim 3
Dependent Claim
26 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 1, wherein 5 to 30% by weight of said mixture is said xylylene group-containing polyamide resin.
Claim 4
Dependent Claim
56 words
A hollow blow-molded biaxially oriented bottle-shaped container comprising: an inner surface layer and an outer surface layer, and an intermediate layer, wherein said inner surface layer and said outer surface layer are formed of polyethylene terephthalate resin, and said intermediate layer is formed of a mixture of polyethylene terephthalate resin and a xylylene group-containing polyamide resin.
Claim 5
Dependent Claim
56 words
A hollow blow-molded biaxially oriented bottle-shaped container comprising: an inner surface layer and an outer surface layer, and an intermediate layer, wherein said inner surface layer and said outer surface layer are formed of polyethylene terephthalate resin, and said intermediate layer is formed of a mixture of polyethylene terephthalate resin and a xylylene group-containing polyamide resin.
Claim 6
Dependent Claim
40 words
A hollow blow-molded biaxially oriented bottle-shaped container comprising: a two-layer structure having an outer layer formed of a mixture of a polyethylene terephthalate resin and a xylylene group-containing polyamide resin, and an inner layer formed of a polyethylene terephthalate resin.
Claim 7
Dependent Claim
40 words
A hollow blow-molded biaxially oriented bottle-shaped container comprising: a two-layer structure having an outer layer formed of a mixture of a polyethylene terephthalate resin and a xylylene group-containing polyamide resin, and an inner layer formed of a polyethylene terephthalate resin.
Claim 8
Dependent Claim
40 words
A hollow blow-molded biaxially oriented bottle-shaped container comprising: a two-layer structure having an outer layer formed of a polyethylene terephthalate resin and an inner layer formed of a mixture of a polyethylene terephthalate resin and a xylylene group-containing polyamide resin.
Claim 9
Dependent Claim
40 words
A hollow blow-molded biaxially oriented bottle-shaped container comprising: a two-layer structure having an outer layer formed of a polyethylene terephthalate resin and an inner layer formed of a mixture of a polyethylene terephthalate resin and a xylylene group-containing polyamide resin.
Claim 10
Dependent Claim
26 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 3, wherein 5 to 50% by weight of said mixture is said xylylene group-containing polyamide resin.
Claim 11
Dependent Claim
26 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 4, wherein 5 to 50% by weight of said mixture is said xylylene group-containing polyamide resin.
Claim 12
Dependent Claim
26 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 5, wherein 5 to 50% by weight of said mixture is said xylylene group-containing polyamide resin.
Claim 13
Dependent Claim
26 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 3, wherein 10 to 30% by weight of said mixture is said xylylene group-containing polyamide resin.
Claim 14
Dependent Claim
26 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 4, wherein 10 to 30% by weight of said mixture is said xylylene group-containing polyamide resin.
Claim 15
Dependent Claim
26 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 5, wherein 10 to 30% by weight of said mixture is said xylylene group-containing polyamide resin.
Claim 16
Dependent Claim
24 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 3, wherein 20% by weight of resin mixture is said xylylene group-containing polyamide resin.
Claim 17
Dependent Claim
24 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 4, wherein 20% by weight of said mixture is said xylylene group-containing polyamide resin.
Claim 18
Dependent Claim
24 words
The hollow blow-molded biaxially oriented bottle-shaped container according to claim 5, wherein 20% by weight of said mixture is said xylylene group-containing polyamide resin.
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) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |