TWI429529B - 具有改良握持之疊合模製容器及其製造方法 - Google Patents

具有改良握持之疊合模製容器及其製造方法 Download PDF

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Publication number
TWI429529B
TWI429529B TW98111588A TW98111588A TWI429529B TW I429529 B TWI429529 B TW I429529B TW 98111588 A TW98111588 A TW 98111588A TW 98111588 A TW98111588 A TW 98111588A TW I429529 B TWI429529 B TW I429529B
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TW
Taiwan
Prior art keywords
container
preform
layer
elastomer
grip
Prior art date
Application number
TW98111588A
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English (en)
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TW201008757A (en
Inventor
Yu Shi
Original Assignee
Colgate Palmolive Co
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Publication of TW201008757A publication Critical patent/TW201008757A/zh
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Publication of TWI429529B publication Critical patent/TWI429529B/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B29B11/08—Injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14598—Coating tubular articles
    • B29C45/14622—Lining the inner or outer surface of tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1684—Injecting parison-like articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/10—Handles
    • B65D23/102—Gripping means formed in the walls, e.g. roughening, cavities, projections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B29C2949/0723—Preforms or parisons characterised by their configuration having variable wall thickness at flange portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B29C2949/0724—Preforms or parisons characterised by their configuration having variable wall thickness at body portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Description

具有改良握持之疊合模製容器及其製造方法 【相關申請案交互參考】
本專利申請案係為2006年2月17日申請之美國專利申請案第11/307,700號的部分連續申請案，現仍在審查當中，該專利申請案宣稱具有2005年3月15日提出申請之美國臨時申請案第60/661,736號的優點。該等專利申請案在此將作為整體性的配合參考併入本文中。
本發明一般係關於一種模製聚合容器，尤其是本發明係關於一種用於製造疊合模製容器的方法，其強化該等容器的握持。
以聚對苯二甲二乙酯(PET)為基礎的聚酯已經廣泛地被當作容器材料使用，因為它們具有良好的機械性質和阻絕性質。然而由PET製造的容器典型地具有堅硬和平滑表面，這些表面很難握持而使容器會從消費者手上滑落，造成該容器內容物濺出。當一儲存於低溫(例如，在冷藏器當中)之填充物品容器(例如，一裝有飲料的容器)在室溫被取出使用而使水份凝結在容器外面時，此握持失誤通常更容易發生。此握持失誤亦存在於使用在潮濕環境的容器，例如，口腔和個人清潔產品(例如漱口水、洗髮精、潤絲精、沐浴膠和沐浴乳)容器。另外，當一個人的手是濕的時候，使用於家庭清潔物品之容器喪失它們若干握持性。此類容器包括那些使用於洗碗精和用於花磚、浴盆、浴室和其它硬表面清潔物品的容器。因此，其具有高度的需求性：PET容器握持性的改善和其它熱塑性聚合容器的美觀，特別是經常使用於下列情況的物品容器，例如，在使用期間或之前，該等容器之外表及/或使用人的手是濕的。誠如此處所使用者，該用詞”可握持的”和”可握持性”泛指一容器表面之特性，亦即一個人可穩穩地握住，不會從一個人的手上滑落。
疊合模製或多成份模製已經廣泛地使用於射出成型產業。疊合模製基本上係定義一製程，其藉由射出成型以兩個或更多熱塑性樹脂製造加工元件。當其存在兩疊合模製元件時，該技術亦為熟知的雙射出模製。疊合模製已經使用於電纜產業多年，並且在產業和消費者物品產業逐漸增加使用。在這些產業裡，許多應用將一柔觸材料與堅硬部分結合一起。該柔觸材料提供改良性美觀、更佳觸感性質和改良的可握持性。結合一柔軟和堅硬材料的最廣泛使用方法是在一例如容器之加工產品上實施疊合模製。傳統上，將柔軟材料直接疊合模製在堅硬材料之上以製造該加工產品組件。在該容器正在製造的時候能夠提供將柔觸材料應用於堅硬容器之上的技術是需要的。這將是本發明的一部份。將疊合模製層應用於容器預型物將造成於吹塑成型之後，該疊合模製層將成為該容器外表的一部份。
可握持性的顯著改善可藉由將容器上的改良握持設計與這些握持設計區域的疊合模製結合在一起而達成，以強化容器的握持。該目的在於藉由改良該等握持建入容器以當作容器一體組件來改善一容器的握持。這對於用作個人清潔產品之容器特別地重要，因為除了容器和使用人的手是濕的之外，容器外表面和使用人的手可能具有一層肥皂。肥皂係熟知的潤滑劑。在一容器上握持的形成和一容器握持的疊合模製將顯著地減少使用於潮濕環境之容器的滑落。此效益係來自容器握持與疊合模製材料的結合。
因此在封裝產業需要製造一具有強化握持功能及/或其它功能的容器，且在不會有負面衝擊PET或其它熱塑再循環流的情況下達成這些設計特色。另外，在封裝產業存在另一項需要，以一合乎成本效益的製程製造此一類容器。
一種用於製造疊合模製容器之方法被提供。該等疊合模製容器優點在於提供強化的可握持性以及視覺與觸覺特性，促使創新的封裝設計。該等製造方法以一合乎成本效益方式且不具有或具有甚少對材料再循環流之衝擊的情況下達成這些容器優點。
在一面向當中，製造該容器的方法包括下列步驟：提供用於一容器之一預型物，該預型物包括一熱塑性聚合物；在用以包含握持的該預型物之至少一部份上疊合模製一彈性體疊合模製材料；將該預型物定位在鑄模當中，使得該等疊合模製區域相鄰於該等鑄模握持區域；和吹塑成型該疊合模製預型物，以成型一具有該等容器握持之疊合模製容器，該等容器握持係疊合模製該彈性體材料。在一較佳具體實施例當中，該疊合模製容器係一飲料容器。在另一較佳具體實施例當中，該容器係漱口水、沐浴乳、沐浴膠、洗髮精或洗碗精容器之任一者。
該預型物可由各種熱塑性聚合物製造。在一具體實施例當中，該熱塑性聚合物包括一種或多種聚酯。在一較佳具體實施例當中，該熱塑性聚合物係為或者包括一聚對苯二甲二乙酯(PET)異量分子聚合物。
該疊合模製材料係被選取以便在溫度和壓力相容於吹塑成型製程，所以該疊合模製材料能夠與該預型物一致性地拉伸，並取得製成吹塑成型容器的形狀。在一具體實施例當中，該疊合模製材料包括一熱塑性彈性體。適合的疊合模製材料範例包括聚烯烴彈性體、聚烯烴塑體、改質聚烯烴彈性體、改質聚烯烴塑體、熱塑性氨基鉀酸酯彈性體、共聚物、彈性體混合物和其等組合。共聚體包括苯乙烯、異聚酯、聚氨酯、聚胺、聚烯烴混合物和聚烯烴合金。
在一模式當中，該疊合模製材料具有一小於1.00g/cc的密度，其可促使該熱塑性聚合物最終再循環，例如，使用一水性沈浮操作，其係依據該熱塑性聚合物與該疊合模製材料間密度的差異。
該疊合模製材料選擇性地可包括一種或多種添加劑。可能的添加劑範例包括著色劑、抗紫外線劑、潤滑劑、滑脫劑、加工助材、氧化穩定劑、熱穩定劑和其等混合。
在一具體實施例當中，該容器包括一容器體，其具有一含一體成型握持之外表面和一內部空間，其中，該容器體係藉由一熱塑性聚合物預型物之吹塑成型所形成；和一疊合模製層，其配合性地固定於用以包含該等握持之該容器體的外表面之至少一部份之上。
在另一具體實施例當中，該容器係屬圓柱形並包括一個或多個作為該容器之一體成型部分的手握持。該疊合模製層包括一疊合模製材料，其包覆該等作為該容器一體成型部分的手握持。在另一具體實施例當中，該疊合模製層包覆該等一體成型握持和該容器其它壁區域的一部份。
在更一具體實施例當中，容器係一非圓柱形容器，例如，一橢圓形容器，並裝設一體成型握持，該等握持具有一疊合模製層。該疊合模製層係一聚合物層，其具有的摩擦係數係大於吹塑成型容器表面之摩擦係數。除了其它特徵之外，一吹塑成型容器較佳地係從一PET異量分子聚合物形成；一疊合模製層，包括一乙烯α-烯烴樹脂或其它聚烯烴彈性體或塑體，其中，該疊合模製層係配合性地固定於包括該等容器握持之容器之外表面的至少一部份之上。
本發明將參考隨附圖式以更詳細的方式揭露於其較佳具體實施例當中。雖然本發明可做變化，但是其仍含括在此申請案所揭露的概念當中。
圖1表示一預型物10，其具有一下延伸部分18和一具有螺紋14的上部12，同時在上部之上係一罐蓋密封凸緣15和一經過預熱與當輸入鑄模時支撐該預型物的輸送凸緣16。該預型物的該下部18具有疊合模製層20(a),20(b)，其等在該預型物10上係一U字形。該等疊合模製層20(a),20(b)具有一約0.05mm到約5mm的厚度，較佳地為約0.1到約3mm之間。一疊合模製組件的寬度係由將覆蓋在完全吹塑成型容器上之該等握持的面積所決定。疊合模製層具有一U字形，在從該預型物吹塑出之容器底部上的任何多餘材料將從該吹塑成型容器中移除。從此預型物成型之該吹塑成型容器22係表示在圖2當中。該容器22的上部係與該預型物相同含有具螺紋14之頸部12、罐蓋密封凸緣15和該輸送凸緣16。該容器22具有一肩部21和一容器體28。該容器體具有一底部表面29和側表面24,25，這些側表面的每一個皆具有複數個握持。該側表面24具有握持26(a),26(b),26(c)和26(d)，側表面25則具有握持27(a),27(b),27(c)和27(d)。該等握持26(a),26(b),26(c)和26(d)係由疊合模製層20(a)所覆蓋，而該等握持27(a),27(b),27(c)和27(d)則由疊合模製層20(b)所覆蓋。該疊合模製層僅位於該等握持之上，其等讓該容器的整個前後表面空出，以方便貼上標誌或印上產品資訊，有些標誌或資訊法律規定需要附在該容器之上。
圖3表示一使用在一容器之前表面和側表面上提供一握持的預型物。該預型物具有一上部32和一下部38。該上部具有螺紋34、罐蓋密封凸緣35和輸送凸緣36。在該預型物之上存在一疊合模製層40。此預型物被吹塑成型以形成圖4A的容器42。該容器的前視圖係表示於圖4A當中。此容器具有一含有螺紋34的頸部32、一罐蓋密封凸緣35和一輸送凸緣36。該容器體37具有一底部表面49和一具有標誌區域41(a)的前表面39(a)。該容器體的上部具有一疊合模製層40和一在該容器前表面39(a)中的握持凹入區域45(a)，同時在側壁44,46分別存在握持凹入47,48。該疊合模製層的厚度將與圖1的預型物之疊合模製層的厚度相同。但是，在此具體實施例當中，該疊合模製層將覆蓋該預型物之下部38的上方區域。當藉吹塑成型該容器時，該疊合模製層40將覆蓋該容器前表面39(a)的一上部。圖4B表示圖4A之該容器的一後視圖，其存在的容器後表面39(b)具有標誌區域41(b)和一握持凹入區域45(b)，否則該容器的後視圖基本上是與圖4A的前視圖相同。
圖5表示一預型物50，其具有一含有螺紋54的上部52、一罐蓋凸緣55和一輸送凸緣56。該預型物的下部58具有一疊合模製層60，此疊合模製層所具有的厚度會與圖1疊合模製層的厚度類似當該預型物被吹塑成型該容器時，其將必須具有一充分的厚度以覆蓋一容器之下部。從此預型物50吹塑成型的容器係表示於圖6當中。該吹塑成型容器62具有一肩部63和一頸部52，該頸部52具有螺紋54、罐蓋凸緣55和輸送凸緣56。該容器62的容器體57具有一前表面69和一底部表面67。容器前表面69之上部具有標誌區域59。容器體57之下部在側表面66之上具有側握持64(a),64(b)和64(c)，且在側表面68之上具有側握持65(a),65(b)和65(c)。在前表面69之上同時存在一內凹握持區域70。當從該瓶子倒出物品時，此容器將被握持在該容器的一下部之上。
圖7表示一具有一圓形橫剖面的容器72。此容器使用圖1之該預型物被吹塑成型。該預型物被放置在一具有模腔之模件當中，該模腔具有一圓形橫剖面之內表面，其係此圖7之該容器的負模結構。此容器具有一肩部74、具有螺紋的頸部12、罐蓋凸緣15和輸送凸緣16。該容器具有一容器體75、一體表面76和一底部表面78。握持71(a)/71(b)和握持73(a)/73(b)相隔約180度。該等握持71(a)/71(b)具有一疊合模製覆蓋層20(a)，握持73(a)/73(b)具有一疊合模製覆蓋層20(b)。圖8是一圖7該容器沿著該容器體75之剖面線8-8朝向該容器體之底部表面78觀視的橫剖面視圖，其表示具有疊合模製覆蓋層20(a),20(b)的圓形體表面76。基本上，僅有該等握持具有一疊合模製層，該容器的其餘部分則可用於標誌的貼附。當該容器正被握住時，特別是當一物品從該容器倒出時，一使用者可使用此等疊合模製握持而握持該容器。
基本上，具有一體成型之模製握持的任何形狀之容器皆可使用本發明來被製造，該等製程並不為任何特殊形狀的容器所侷限。這些容器形狀可從橢圓到多邊形，從三角形到八邊形，或者更多。另外，當該容器形狀係多邊形時，該等側邊的寬度不需要一定相等，或者該容器不需要一定對稱。
用於製造該疊合模製預型物的製程係說明於美國專利第11/307,700號當中。首先，一適於被疊合模製的預型物被提供。然後，該預型物被與彈性體材料疊合模製，例如，使用熟知的射出成型技術，該彈性體疊合模製材料射出模製在該預型物的表面之上，因此形成該疊合模製預型物。接著，該疊合模製預型物被吹塑成型，例如，使用拉伸吹塑成型。該預型物和該吹塑成型容器的無疊合模製表面所具有的摩擦係數(COF)將小於1，通常在約0.2和0.8之間。該預型物和該容器的疊合模製表面的COF將大於1，通常大於1.5。
該預型物可從各種熱塑性聚合物當中製造。在一具體實施例當中，該熱塑性聚合物包括一種或多種聚酯。在一具體實施例當中，該熱塑性聚合物包括一聚丙烯。在一較佳具體實施例當中，該熱塑性聚合物係為或者包括一聚對苯二甲二乙酯(PET)異量分子聚合物。合適的聚酯包括PET異量分子聚合物、聚萘二甲酸乙二酯(PEN)、間苯二甲酸乙二酯(PEI)、乙二醇改質非晶矽PET異量分子聚合物(商業市場上俗稱的PETG)、二酸改質非晶矽PET以及其它類似聚合物等。PET異量分子聚合物係特別有用的，因為它們使用於許多容器之應用。如此處所使用者，”PET異量分子聚合物”係指聚合物成分包括：二醇成分，其具有來自乙烯乙二醇之重複單元；和二酸成分，其具有來自對苯二甲酸之重複單元。希望地，在若干具體實施例當中，以100mole%二酸成分和100mole%二酸成分為基礎，該PET異量分子聚合物具有少於20%的二酸成分改質及/或少於10%的二醇成分改質。此類PET異量分子聚合物係熟知的。
選擇地，一多層預型物可被使用。例如，該預型物可包含3或5層結構，例如習知技藝所揭露者。在一3層預型物結構之具體實施例當中，該中間層係一阻絕層，該容納產品層和外部層係聚酯層。在一5層預型物結構之具體實施例當中，該內部層和外部層係純聚酯層，第二層和第四層則為再循環PET層，最後，第三層為一阻絕層。
由該疊合模製材料所覆蓋的該預型物之表面的程度係可變化的，例如，可依據將被製造之容器的特殊設計或該等握持的尺寸、數量和配置而定。疊合模製該握持區域和儘量留下空間以供該容器的標誌貼附和裝飾是本發明的目的之一。
該用詞”熱塑性彈性體”包括：彈性體、塑性體、改質彈性體、改質塑性體、共聚物、混合物和合金，如習知技藝所熟知者。適當熱塑性彈性體的代表性範例，如可使用傳統射出模製設備者，係包括：聚烯烴彈性體(諸如乙烯-丙烯橡膠)、聚烯烴塑性體、改質聚烯烴彈性體(諸如乙烯、丙烯和苯乙烯之三元共聚體)、改質聚烯烴塑性體、熱塑性氨基甲酸酯彈性體、丙烯酸-烯烴異量分子聚合物彈性體、聚酯彈性體和其等之組合。特定的，但非限制性的，商業上可作為疊合模製材料的範例包括：陶氏化學公司(Dow Chemical Company)的VERSIFYTM 塑性體和AffinityTM 彈性體；來自DSM的SarlinkTM 和VersalloyTM ；來自GLS公司的DynaflexTM 、KratonTM 和VersaflexTM ；來自Exxon Mobil的SantopreneTM ；Uniprene；Tekbond；Elexar；Monprene；來自Teknor Apex的Tekron；和其它類似物。若干這些材料係更進一步地說明於Batistini,Macromol. Symp. 100:137-42(1995)當中。
該熱塑性彈性體期望地具有小於1.00g/cc之密度，這可促進熱塑性聚合物及/或疊合模製材料的分離與再循環。在該疊合模製容器上的疊合模製材料層的厚度為約0.05mm至約5mm之間，較佳地，為約0.1mm至3mm之間。該熱塑性彈性體期望地具有一小於Shore D 45的一軟度/硬度，較佳地，小於Shore D 30。
該疊合模製材料可包括一種或多種添加劑。可能的添加劑範例包括顏料和其它著色劑、防紫外線劑、潤滑劑或滑脫劑、製程助劑、抗氧化劑、抗細菌(微生物)添加劑和熱穩定劑，如習知技藝所熟知者，以及其等之組合者。在一具體實施例當中，一滑脫劑被加入，以改善容器與容器間的摩擦，此發生於一製造處理線(例如，在一空氣輸送帶)當中。在其它具體實施例當中，該疊合模製材料可包括具有功能群以改善黏合性的化合物，如果需要，用於改善疊合模製層和基本熱塑層之間的黏合。
一般而言，本發明的具體實施例可以吹塑成型製造。吹塑成型的各種方法係熟知的。在一較佳具體實施例當中，該吹塑成型製程包括一預型物再加熱拉伸吹塑成型製程，如習知技藝所熟知者。此一類製程包括：提供一預型物，在該預型物上選擇性地具有一彈性體層，以配合所需吹塑成型容器的至少一握持區域；加熱此預型物以軟化該預型物熱塑性；提供一鑄模，其具有一模腔，該模腔在其內表面上具有至少一握持區域在模腔內表面中的負模；將該預型物定位在模腔當中，使得該彈性體層係相鄰於該至少一握持區域的負模；將一氣體注入該預型物，以吹塑該預型物之壁至模腔的表面，藉此，該預型物的彈性體層將接觸模腔表面上至少一握持區域的負模，以形成一握持區域含有一層彈性體的吹塑成型容器。其存在商業上可利用的設備以吹塑成型容器。
一廣泛變化的疊合模製、吹塑成型容器可被製造。該疊合模製容器可使用於實質上任何食物、飲料、個人清潔、家庭清潔或醫藥產品。適當型態之疊合模製容器的代表性範例包括：容器、罐、圓桶、玻璃瓶、冷卻器等。
10．．．預型物
12．．．上部/頸部
14．．．螺紋
15．．．罐蓋(密封)凸緣
16．．．輸送凸緣
18．．．下延伸部分/下部
20(a),20(b)．．．疊合模製(覆蓋)層
21．．．肩部
22．．．容器
24,25．．．側表面
26(a),26(b),26(c),26(d)．．．握持
27(a),27(b),27(c),27(d)．．．握持
28．．．容器體
29．．．底部表面
32．．．上部/頸部
34．．．螺紋
35．．．罐蓋密封凸緣
36．．．輸送凸緣
37．．．容器體
38．．．下部
39(a)．．．前表面
39(b)．．．後表面
40．．．疊合模製層
41(a),41(b)．．．標誌區域
42．．．容器
44,46．．．側壁
45(a),45(b)．．．握持凹入區域
47,48．．．握持凹入
49．．．底部表面
50．．．預型物
52．．．上部/頸部
54．．．螺紋
55．．．罐蓋凸緣
56．．．輸送凸緣
57．．．容器體
58．．．下部
59．．．標誌區域
60．．．疊合模製層
62．．．容器
63．．．肩部
64(a),64(b),64(c)．．．側握持
65(a),65(b),65(c)．．．側握持
66．．．側表面
67．．．底部表面
68．．．側表面
69．．．前表面
70．．．內凹握持區域
71(a),71(b)．．．握持
72．．．容器
73(a),73(b)．．．握持
74．．．肩部
75．．．容器體
76．．．體表面
78．．．底部表面
圖1係一在預型物之一部分之上具有一疊合模製層的該預型物之正視圖。
圖2係一容器的正視圖，該容器具有一疊合模製層，該疊合模製層在由圖1之該預型物所製造的該等握持之上。
圖3係一預型物的正視圖，在該預型物之一上部之上具有一疊合模製層。
圖4A係一容器之前部的正視圖，該容器係由圖3的該預型物所製造，在該容器之一上部的握持之上具有一疊合模製層。
圖4B係一容器之後部的正視圖，該容器係由圖3的該預型物所製造，在該容器之一上部的握持之上具有一疊合模製層。
圖5係一預型物的正視圖，在該預型物的一下部之上具有一疊合模製層。
圖6係一容器的正視圖，該容器係由圖5之該預型物所製造，並在該容器的一下部的握持之上具有一疊合模製層。
圖7係一圓形容器的正視圖，該容器係由圖1之該預型物所製造，並在該容器的握持之上具有一疊合模製層。
圖8係圖7之該容器沿著剖面線8-8所作的橫剖面視圖。
12．．．上部/頸部
14．．．螺紋
15．．．罐蓋(密封)凸緣
16．．．輸送凸緣
20(a),20(b)．．．疊合模製(覆蓋)層
21．．．肩部
22．．．容器
24,25．．．側表面
26(a),26(b),26(c),26(d)．．．握持
27(a),27(b),27(c),27(d)．．．握持
28．．．容器體
29．．．底部表面

Claims (4)

  1. 一種具改良型握持之吹塑成型容器，包括一具有一容器體和一容器倒出口的吹塑成型容器，該容器體具有一前表面、一後表面、一右側表面和一左側表面，該右側表面和該左側表面將該前表面連接至該後表面，其中該右側表面和該左側表面之至少一者具有一握持區域，該握持區域被疊合模製為一彈性體以形成一吹塑成型容器，其具有包含一層該彈性體的該握持區域，該彈性體具有一摩擦係數，其係大於該容器之表面的摩擦係數，其中該握持區域整體具有一層該彈性體，該一層彈性體僅在該容器之該握持區域上，而不在該容器之該前表面及該後表面上，且其中，該容器係一圓柱形，且該容器之一圓形體表面係由該層彈性體及該容器的前、後表面所形成。
  2. 根據申請專利範圍第1項所述之吹塑成型容器，其中該右側表面和該左側表面各具有一握持區域，該握持區域整體具有一層該彈性體。
  3. 一種製造具有改善握持之吹塑成型容器的方法，該容器具有一容器體及一容器倒出口，該容器體具有一前表面、一後表面、一右側表面及一左側表面，該右側表面和該左側表面連接該前表面至該後表面，其中該右側表面和該左側表面之至少一者具有一握持區域，該握持區域以一彈性體疊合模製，該方法包括： 提供一預型物，在該預型物上選擇性地具有一彈性體層，以配合該吹塑成型容器的該握持區域；提供一鑄模，其具有一模腔，該模腔在其內表面上具有該握持區域在該模腔之內表面中的負模；將該預型物定位在該模腔當中，使得該彈性體層相鄰於該握持區域的負模；將一氣體注入該預型物，以吹塑該預型物之壁至該模腔的表面，藉此該預型物的彈性體層將接觸該模腔表面上該握持區域的負模，以形成吹塑成型容器具有該含一層彈性體的握持區域；該彈性體具有一摩擦係數，其大於該容器之表面的摩擦係數，其中該握持區域整體具有一層該彈性體，該層彈性體僅在該容器之該握持區域上，而不在該容器之該前表面及該後表面上，且其中，該容器具有一圓柱形橫剖面，且該容器之一圓形體表面係由該容器的該右側、左側、前及後表面所形成。
  4. 根據申請專利範圍第3項所述之方法，其中該右側表面和該左側表面各具有一握持區域，該握持區域整體具有一層該彈性體。
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