CN1465507A - Lining material for bottle cap and use in cap of plastic bottle of heat filling beverage - Google Patents
Lining material for bottle cap and use in cap of plastic bottle of heat filling beverage Download PDFInfo
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- CN1465507A CN1465507A CNA02112339XA CN02112339A CN1465507A CN 1465507 A CN1465507 A CN 1465507A CN A02112339X A CNA02112339X A CN A02112339XA CN 02112339 A CN02112339 A CN 02112339A CN 1465507 A CN1465507 A CN 1465507A
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- bottle cap
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- sebs
- eva
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Abstract
The present invention belongs to an improvement on lining material of bottle cap and its application in the thermofilled beverage plastic bottle cap. Said bottle cap lining material is made of EVA modified maleic acid, SEBS (hydrophenylethylene diene copolymer), hydrogenated paraffin oil, branching low-density polyethylene, polypropylene, polystyrene and low-molecular lubricant through a certain preparatino process. As compared with traditional lining material it has excellent performance and low cost.
Description
Technical field
The invention belongs to a kind of improvement of bottle cap material, and the application on the heat filling beverage plastic bottle closure.
Background technology
The plastic bottle closure inner pad material that is suitable for fruit juice, tea beverage hot filling technology generally adopts and adds compositions such as SEBS (copolymer of hydrogeneous styrene and conjugated diene also claims thermoplastic rubber) and paraffin oil, lubrication prescription in the polyolefin.This class has following shortcoming by thermoplastic elastomer and polyolefin blending modified bottle holder material: have oil or trickle smooth material to separate out during 1 can easily, have the problem of food hygiene aspect; 2 these class materials are not easy to cut off when thermal cutting because melt has elasticity, cause the appearance of waste product such as wire drawing, have reduced production efficiency; 3 price comparison height.
The shortcoming that simple EVA adds the conventional bottle cap inner pad material of lubricant composition is that hardness is higher, does not have enough elasticity, and good sealing property can not be provided; In addition, this material non-refractory because high temperature makes wherein low molecule softening and move to bottleneck, can't open bottle cap.
Simple polyolefin blends is because elasticity is relatively poor, during as bottle cap, be subjected to environment for use vibration, impact and fall etc. and influence, situation such as may take place that content leaks and outer gas are sneaked into also has problems on leak tightness.
Summary of the invention
Main purpose of the present invention provides a kind of novel bottle cap inner pad material and is used for heat filling beverage plastic bottle closure inner pad material, it is characterized in that containing VA content and be 18% EVA, weight ratio is 5～60%, add ethylene-alpha-olefin copolymer, weight ratio is 90～35%, all the other are low molecule lubricant, and blend makes.
Also can add the SEBS (hydrogenated styrene diene copolymer) that accounts for total weight 10～40% again, and account for 0.2～0.9 hydrowax oil of SEBS weight, blend makes; Can also add the polypropylene (can be homopolymerization cluster type together) that accounts for total weight 5～15%; And accounting for the polystyrene of total weight 2～10%, blend makes.
Second kind of proportioning of heat filling beverage plastic bottle closure inner pad material is that the EVA weight ratio that contains the maleic acid modification is 20～60%, branch-like low density polyethylene (LDPE) 75～35%.
Can add the ethylene-alpha-olefin copolymer that accounts for total weight 5～15% again, blend makes; Can also add the SEBS (hydrogenated styrene diene copolymer) that accounts for total weight 10～40%, account for 0.2～0.9 hydrowax oil of SEBS weight, blend makes; Can also add the polypropylene (can be homopolymerization cluster type together) that accounts for total weight 5～15% again; And accounting for the polystyrene of total weight 2～10%, blend makes.
The present invention constitutes by maleic acid modified EVA, SEBS (hydrogenated styrene diene copolymer), hydrowax oil, branch-like low density polyethylene (LDPE), polypropylene, polystyrene and low molecule lubricant, is unexistent in the traditional cap packing material.The result of this blend makes the inner pad material have good performance.Compare with prior art beverage packaging plastic bottle closure inner pad material, this novel gasket material of the present invention is not only cheap, and drinks the effective of plastic bottle closure inner pad material than traditional hot can.By in the EVA of maleic acid modification, adding ethylene-alpha-olefin copolymer, the branch-like low density polyethylene (LDPE), SEBS and other polyolefine material blending and modifying, both increased the elasticity of inner pad material, obtain stabilized uniform when separating out composition and open moment of torsion having reduced again, because therefore the smooth composition that adds oil and easily separate out can not cause the floating debris on content surface after high-temperature filling.
The present invention draws the good Bottle cap spacer material of forming characteristics and leak tightness by the blend of several useful components.1, on the result of use, compare with traditional hot filled drink packing plastics bottle cap inner pad material, can reach the level of traditional material technically fully.2, will draw up in low-level from the composition of separating out of bottle cap by control, energy to blend components, be safely and effectively on food hygiene therefore.3, because this product is to high-temperature filling product (tea beverage, fruit drink etc.) and soda product leak free commonality, do not need in process of production according to the different purposes of product more conversion materials and technology, the cleaning and the replacing process of equipment in changing materials process have been save, make operating process simpler, improved production efficiency.Because feed stock cost is lower, save material cost greatly simultaneously, improved economic benefit, improved the competitive edge of product.4 obtain toughness and the balanced unified material of intensity.
The specific embodiment
Embodiment 1: a kind of heat filling beverage plastic bottle closure inner pad material, and VA content is 18% EVA, and weight ratio is 5%, adds ethylene-alpha-olefin copolymer, and weight ratio is 90%, and all the other are low molecule lubricant; Blend makes.
Embodiment 2: a kind of heat filling beverage plastic bottle closure inner pad material, and VA content is 18% EVA, and weight ratio is 40%, adds ethylene-alpha-olefin copolymer, and weight ratio is 55%, and all the other are low molecule lubricant; Blend makes.
Embodiment 3: a kind of heat filling beverage plastic bottle closure inner pad material, and VA content is 18% EVA, and weight ratio is 60%, adds ethylene-alpha-olefin copolymer, and weight ratio is 35%, and all the other are low molecule lubricant; Blend makes.
Embodiment 4:VA content is 18% EVA, and weight ratio is 4.4%, and the adding weight ratio is 79.2% ethylene-alpha-olefin copolymer, and weight ratio is 10% SEBS (hydrogenated styrene diene copolymer), the hydrowax oil of weight ratio 2%; All the other are low molecule lubricant; Blend makes.
Embodiment 5:VA content is 18% EVA, and weight ratio is 52.8%, and the adding weight ratio is 30.8% ethylene-alpha-olefin copolymer, and weight ratio is 10% SEBS (hydrogenated styrene diene copolymer), and weight ratio is 2% hydrowax oil; All the other are low molecule lubricant; Blend makes.
Embodiment 6:VA content is 18% EVA, and weight ratio is 26.4%, and the adding weight ratio is 57.2% ethylene-alpha-olefin copolymer, and weight ratio is 10% SEBS (hydrogenated styrene diene copolymer), and weight ratio is 2% hydrowax oil; All the other are low molecule lubricant; Blend makes.
Embodiment 7:VA content is 18% EVA, and weight ratio is 2.6%, and the adding weight ratio is 46.8% ethylene-alpha-olefin copolymer, and weight ratio is 40% SEBS (hydrogenated styrene diene copolymer), and weight ratio is 8% hydrowax oil; All the other are low molecule lubricant; Blend makes.
Embodiment 8:VA content is 18% EVA, and weight ratio is 31.2%, and the adding weight ratio is 18.2% ethylene-alpha-olefin copolymer, and weight ratio is 40% SEBS (hydrogenated styrene diene copolymer), and weight ratio is 8% hydrowax oil; All the other are low molecule lubricant; Blend makes.
Embodiment 9:VA content is 18% EVA, and weight ratio is 20.8%, and the adding weight ratio is 28.6% ethylene-alpha-olefin copolymer, and weight ratio is 40% SEBS (hydrogenated styrene diene copolymer), and weight ratio is 8% hydrowax oil; All the other are low molecule lubricant; Blend makes.
Embodiment 10:VA content is 18% EVA, and weight ratio is 16.5%, and the adding weight ratio is 15% ethylene-alpha-olefin copolymer, and weight ratio is 30% SEBS (hydrogenated styrene diene copolymer), and weight ratio is 12% hydrowax oil; Weight ratio is 10% polystyrene, weight ratio be 15% polypropylene all the other be low molecule lubricant; All the other are low molecule lubricant; Blend makes.
Embodiment 11: the EVA weight ratio of maleic acid modification is 20%, and branch-like low density polyethylene (LDPE) weight ratio is 75%, and all the other are low molecule lubricant; Blend makes.
Embodiment 12: the EVA weight ratio of maleic acid modification is 46.75%, and branch-like low density polyethylene (LDPE) weight ratio is 34%, ethylene-alpha-olefin copolymer weight ratio 15%, and all the other are low molecule lubricant; Blend makes.
Embodiment 13: the EVA weight ratio of maleic acid modification is 12.8%, branch-like low density polyethylene (LDPE) weight ratio is 41%, ethylene-alpha-olefin copolymer weight ratio 9.6%, SEBS (hydrogenated styrene diene copolymer) weight ratio 30%, the hydrowax weight of oil is than 6%, and all the other are low molecule lubricant; Blend makes.
Embodiment 14: the EVA weight ratio of maleic acid modification is 19.6%, branch-like low density polyethylene (LDPE) weight ratio is 27%, ethylene-alpha-olefin copolymer weight ratio 4.62%, SEBS (hydrogenated styrene diene copolymer) weight ratio 25.2%, hydrowax weight of oil be than 5%, polypropylene (can be homopolymerization cluster type together) weight ratio 10%, polystyrene weight ratio 6%,, meson acid acid amides weight ratio 0.5%, all the other are low molecule lubricant; Blend makes.
Above-mentioned VA content is 18% EVA or through the EVA of maleic acid modification, density is 0.87-0.93 gram/cm
3, hardness is Shao Shi A70-93;
The ethylene-alpha-olefin copolymer fusion index is between 2～10dg/min;
The branch-like low density polyethylene (LDPE), fusion index is between 0.5～8dg/min;
PS (polystyrene) fusion index is between 6～8 gram dg/min;
SEBS (hydrogenated styrene diene copolymer) hardness is Shao Shi D72～77;
Hydrowax oil is the transparent chain hydrocarbon ils of colorless and odorless, and dynamic viscosity is 3.5～6.5;
PP (polypropylene) fusion index is between 2～12dg/min;
Hydrowax oil is the transparent saturated chain hydrocarbon ils of colorless and odorless, and kinetic viscosity is 3.5～6.5.
The material that makes by above-mentioned blend is used as heat filling beverage plastic bottle closure inner pad material.
Claims (9)
1, a kind of bottle cap material is characterized in that containing VA content and is 18% EVA, and weight ratio is 5～60%, adds ethylene-alpha-olefin copolymer, and weight ratio is 90～35%.
2,, it is characterized in that adding the SEBS (hydrogenated styrene diene copolymer) that accounts for total weight 10～40%, and account for 0.2～0.9 hydrowax oil of SEBS weight according to the described bottle cap material of claim 1.
3,, it is characterized in that adding the polypropylene (can be homopolymerization cluster type together) that accounts for total weight 5～15% according to the described bottle cap material of claim 2; And account for the polystyrene of total weight 2～10%.
4, a kind of bottle cap material, the EVA weight ratio that it is characterized in that containing the maleic acid modification is 20～60%, branch-like low density polyethylene (LDPE) 75～35%.
5, according to the described bottle cap material of claim 4, it is characterized in that adding the ethylene-alpha-olefin copolymer that accounts for total weight 5～15%.
6,, it is characterized in that adding the SEBS (hydrogenated styrene diene copolymer) that accounts for total weight 10～40% according to the described bottle cap material of claim 5; And account for 0.2～0.9 hydrowax oil of SEBS weight.
7,, it is characterized in that adding the polypropylene (can be homopolymerization cluster type together) that accounts for total weight 5～15% according to the described bottle cap material of claim 6; And account for the polystyrene of total weight 2～10%.
8, according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 described bottle cap materials, it is characterized in that
VA content is 18% EVA or through the EVA of maleic acid modification, density is 0.87-0.93 gram/cm
3, hardness is Shao Shi A70-93;
The ethylene-alpha-olefin copolymer fusion index is between 2～10dg/min;
The branch-like low density polyethylene (LDPE), fusion index is between 0.5～8dg/min;
PS (polystyrene) fusion index is between 6～8 gram dg/min;
SEBS (hydrogenated styrene diene copolymer) hardness is Shao Shi D72～77;
Hydrowax oil is the transparent chain hydrocarbon ils of colorless and odorless, and dynamic viscosity is 3.5～6.5;
PP (polypropylene) fusion index is between 2～12dg/min;
Hydrowax oil is the transparent saturated chain hydrocarbon ils of colorless and odorless, and kinetic viscosity is 3.5～6.5.
9, the bottle cap material that makes by the described blend of claim 1～9 is used for heat filling beverage plastic bottle closure inner pad material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA02112339XA CN1465507A (en) | 2002-07-01 | 2002-07-01 | Lining material for bottle cap and use in cap of plastic bottle of heat filling beverage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA02112339XA CN1465507A (en) | 2002-07-01 | 2002-07-01 | Lining material for bottle cap and use in cap of plastic bottle of heat filling beverage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1465507A true CN1465507A (en) | 2004-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA02112339XA Pending CN1465507A (en) | 2002-07-01 | 2002-07-01 | Lining material for bottle cap and use in cap of plastic bottle of heat filling beverage |
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| CN (1) | CN1465507A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549770B (en) * | 2008-04-02 | 2011-04-13 | 姚玉琴 | High-temperature resistance double-ring bottle cover and production process thereof |
| CN103509227A (en) * | 2013-09-29 | 2014-01-15 | 吴江海宏塑料制品有限公司 | Gasket material for crown cork and preparation method thereof |
| CN105377711A (en) * | 2013-05-10 | 2016-03-02 | T·特里梅因 | A closure with a surface tension seal |
| CN107614391A (en) * | 2015-12-25 | 2018-01-19 | 安隆化成株式会社 | Food containers and its manufacture method |
| DE112016000112T5 (en) | 2016-08-12 | 2018-04-19 | Jiangsu Jinhou New Material Technology Co., Ltd. | Foam seal and manufacturing method thereof |
| CN113072813A (en) * | 2021-03-18 | 2021-07-06 | 深圳市欧龙优新材料科技有限公司 | High-temperature-resistant flexible polyolefin thermoplastic elastic material |
-
2002
- 2002-07-01 CN CNA02112339XA patent/CN1465507A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549770B (en) * | 2008-04-02 | 2011-04-13 | 姚玉琴 | High-temperature resistance double-ring bottle cover and production process thereof |
| CN105377711A (en) * | 2013-05-10 | 2016-03-02 | T·特里梅因 | A closure with a surface tension seal |
| CN105377711B (en) * | 2013-05-10 | 2018-11-09 | T·特里梅因 | Closeouts with surface tension sealing |
| CN103509227A (en) * | 2013-09-29 | 2014-01-15 | 吴江海宏塑料制品有限公司 | Gasket material for crown cork and preparation method thereof |
| CN107614391A (en) * | 2015-12-25 | 2018-01-19 | 安隆化成株式会社 | Food containers and its manufacture method |
| CN107614391B (en) * | 2015-12-25 | 2020-04-07 | 安隆化成株式会社 | Food container and method for manufacturing same |
| DE112016000112T5 (en) | 2016-08-12 | 2018-04-19 | Jiangsu Jinhou New Material Technology Co., Ltd. | Foam seal and manufacturing method thereof |
| CN113072813A (en) * | 2021-03-18 | 2021-07-06 | 深圳市欧龙优新材料科技有限公司 | High-temperature-resistant flexible polyolefin thermoplastic elastic material |
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