IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0555507
(1975-03-05)
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발명자
/ 주소 |
- Karabedian James A. (Garden City NY)
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출원인 / 주소 |
- Owens-Illinois, Inc. (Toledo OH 02)
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인용정보 |
피인용 횟수 :
24 인용 특허 :
0 |
초록
▼
There is disclosed herein improved packages, and methods of forming same, of the type wherein a container, such as for example a glass container, like a bottle or jar, is provided externally thereof with a heat-shrunk, cellular thermoplastic member, circumferentially and snugly engaging a sidewall p
There is disclosed herein improved packages, and methods of forming same, of the type wherein a container, such as for example a glass container, like a bottle or jar, is provided externally thereof with a heat-shrunk, cellular thermoplastic member, circumferentially and snugly engaging a sidewall portion of the container; the improvement resides in employing, as the thermoplastic member, a composite structure, or laminate, having a closed cellular polymeric layer preponderantly of polystyrene having incorporated therein from zero weight percent up to compatible amounts of a copolymer of ethylene and an alkyl ester of alpha-beta monoethylenically unsaturated carboxylic acid or a copolymer of ethylene and vinyl acetate or a copolymer of ethylene and an alpha-beta monoethylenically unsaturated carboxylic acid, or mixtures thereof, and, in adhered relationship to said cellular layer, a layer of a non-cellular polymeric material preponderantly of ethylene moieties having incorporated therein moieties of vinyl acetate, or an alkyl ester of alpha-beta monoethylenically unsaturated carboxylic acid, or an alpha-beta monoethylenically unsaturated carboxylic acid, or mixtures thereof. By having the non-cellular layer disposed intermediate the sidewall portion of the container and the cellular layer, improved glass retention characteristics are achieved with increased economics.
대표청구항
▼
In an article of manufacture comprising a container having an annular rim defining a mouth opening at one end thereof, a lower end providing a bottom thereof, and an annular wall interposed said rim and said lower end, and further including a heat-shrunk, polymeric sleeve disposed circumferentially
In an article of manufacture comprising a container having an annular rim defining a mouth opening at one end thereof, a lower end providing a bottom thereof, and an annular wall interposed said rim and said lower end, and further including a heat-shrunk, polymeric sleeve disposed circumferentially outwardly of said wall and in snug engagement therewith, the improvement wherein said polymeric sleeve is a composite structure of a closed cellular polymeric layer preponderantly of polystyrene having incorporated therein, in an amount from zero weight percent up to compatible amounts, a copolymer of ethylene and vinyl acetate, or a copolymer of ethylene and an alkyl ester of an alpha-beta monoethylenically unsaturated carboxylic acid, or a copolymer of ethylene and an alpha-beta monoethylenIcally unsaturated carboxylic acid, or mixtures thereof, and a non-cellular polymeric layer having preponderantly ethylene moieties and incorporated therein moieties of vinyl acetate or an alkyl ester of an alpha-beta monoethylenically unsaturated carboxylic acid, or an alpha-beta monoethylenically unsaturated carboxylic acid, or mixtures thereof, the amount of said incorporated moieties in said non-cellular layer being sufficient to promote the adhesion of said layers, said cellular layer being disposed outwardly of said non-cellular layer and said non-cellular layer being disposed intermediate said cellular layer and said wall.
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