CN1026881C - 热熔加工聚合物的可熔散包装 - Google Patents
热熔加工聚合物的可熔散包装 Download PDFInfo
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- CN1026881C CN1026881C CN91112751.8A CN91112751A CN1026881C CN 1026881 C CN1026881 C CN 1026881C CN 91112751 A CN91112751 A CN 91112751A CN 1026881 C CN1026881 C CN 1026881C
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- 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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/26—End- or aperture-closing arrangements or devices using staples or stitches
-
- 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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
- B65D33/22—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps using heat-activatable adhesive
-
- 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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
-
- 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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/10—Container closures formed after filling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
- Y10T428/1345—Single layer [continuous layer]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sealing Material Composition (AREA)
- Bag Frames (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Package Closures (AREA)
Abstract
本发明提供了一种用于热封敏感聚合物的包装,由一端用热塑聚合物线封口的热塑袋构成,热塑袋材料和热塑线材料的熔点均等于或低于热封敏感聚合物的加工温度。
Description
许多聚合物组份是装在一个柔性的袋中,例如纸袋或塑料袋。这些袋子一般是一端封口,将其放在聚合物生产线出口孔板下面,充入聚合物并封口。所用的封口方法包括缝合(例如棉线),各种粘合,若是塑料袋,则用热封。
当聚合物组份需在高温熔化加工或素炼时,就将可热熔的聚合物装在一个塑料口袋中,当该袋与聚合物组份一起加工时,对聚合物组份所要求的性质不产生有害影响。这种结合的好处是,袋子和聚合物组份可以一起放到加工机中,而不需将袋打开倒空,当然也不会有要处理的空袋。这种塑料袋的封口方法很多,最常用的是热封。然而,所包装的聚合物组份是热敏性或所包装的聚合物组份含有细粉末或滑石(在下文中是一种热封敏感聚合物)时,热封的方法不适用。例如:以未硫化碎片出售的、相当粘的氯丁橡胶(一种公知的氯丁二烯均聚物或氯丁二烯与其它不饱和单体的共聚物)。为减少粘度以便操作,在碎片的表面用滑石处理。然而,滑石影响热封加工。克服这个问题的一种方法公开在美国专利U.S4,190,156(Adam)中,使用合成聚合物来缝合热塑袋。据称,袋材料和缝合线在混合温度下很容易在氯丁橡胶中形成均匀的分散体。所用的缝合线是由聚乙烯醇制成的,熔点为213℃(大大高于氯丁橡胶的加工/混合温度,即100-120℃),还具有足够低的强度,以便于在混合阶段能容易地被粉碎,分散到聚合物中。然而,在某些应用中,分散颗粒聚合物(例如:聚乙烯醇)会影响聚合物加工,因此,这是不适用的,
因而,对袋/封口包装系统,对热封敏感的聚合物要求袋子/封口能不打开就加入到聚合物熔化加工机中,并且袋子/封口的组份不干扰聚合物的加工。
本发明提供了一种用于热封敏感聚合物的包装,是由一个一端用热塑聚合物线封口的热塑袋构成。热塑袋材料及热塑线材料的熔点均等于或低于热封敏感聚合物的加工温度。
本发明还提供了一种装有热封敏感聚合物的包装所构成的制品,该包装是两端封口的热塑袋,至少一端用热塑聚合物线封口,热塑袋材料和热塑线材料的熔点均在或低于热封敏感聚合物的加工温度。
本发明所包括的预期用于包装的热封敏感聚合物是哪些由于本身的熔点,对热封环境中产生的温度是固有敏感的聚合物,以及哪些在它们的制造过程中本身带有(例如:聚四氟乙烯粉末树脂)或外加(例如:加在未被硫化氯丁橡胶、氯化聚乙烯或氯磺化聚乙烯上的滑石)粉末的聚合物。由于在热封加工中可能的热燃烧或细粉材料本身落在将要热封的表面之间的可能性,细粉材料的存在造成了热封敏感性,破坏了热封。
袋的材料是热塑聚合物,其熔点等于或低于被包装的聚合物加工温度。如果袋的材料是没有绝对熔点的热塑聚合物,可用维卡软化点
(ASTM1525)作为参考点。这种袋的材料包括:低密度聚乙烯(m.p70至110℃)和乙烯/乙酸乙烯酯共聚物,以及聚乙烯与乙烯/乙酸乙烯酯共聚物的混合物。混合的比例取决于所需包装聚合物的加工温度。这种混合物一般具有维卡软化点为60-120℃。例如:氯丁橡胶是要包装的化合物,软化点最好为70-110℃。其包装材具有相似的维卡软化点/熔点。例如:丁二烯改性的苯乙烯聚合物当然也可以使用,并不违反本发明的实质。适用的袋材厚度对本领域熟练技术人员来说是已知的。通常的范围是100至200微米,最好为150-175微米,较薄的标准袋缺乏韧性和强度,而较厚的标准袋终究会使与包装的聚合物熔化在一起的袋材量过量。袋材的用量也受与包装聚合物一起熔化所要求的最大袋材量的限制。一般来说,根据包装聚合物的重量计,袋材的重量占0.1-1.0%是可接受的,实际控制的上限量是对所要包装的聚合物性质不产生有害影响。
热塑线的材料也是热塑聚合物,其熔点等于或低于被包装的聚合物加工温度,例如:在氯丁橡胶为包装的聚合物的情况下,最好是60℃-120℃。线可以是单股,也可以是多股。线材料的标准和类型必须不对包装的聚合物所要求的性质产生有害影响。线的标准可以从0.1克/米至1.0克/米。线材料的熔点越低,结构的完整性越差,要求的标准就越高。这种线的一个最佳实例是共聚多酰胺,其熔点约85℃,可以选用GrilonS.A.做为K-85共聚多酰胺线,这种共聚多酰胺是6/66/12型,具有从ε-E内酰胺或δ-氨基己酸或两者衍生的单体单元随机分布,10-50%单体单元的重量从六亚甲基二胺己二酸酯衍生,5-70%从月桂内酰胺或己内酰胺衍生,单体从月桂内酰胺或己内酰胺衍生。所选择的单体比率考虑所需熔点。正如在美国专利1,168,404和1,168,405中的详细说明。其它有用的线材包括:乙烯、丙烯、氯乙烯、1,1-二氯乙烯、乙酸乙烯酯、丙烯腈、丙烯酸酯和异丁烯酸酯等的聚合物或共聚物,它们的熔点低于被包装聚合物的处理温度。用聚合物线缝合袋子是使用市售的缝袋机,当然,袋的一端可以在装入要包装的聚合物之前用任何常用的方式缝合,例如:热封。令人惊奇的是,这种熔点相对较低的聚合物穿过市售缝纫机时不发生断线,失去形稳性或强度。
当包装的聚合物是氯丁橡胶、氯化聚乙烯、或氯磺化聚乙烯时,加工过程中所用的添加剂可能包括:填料、稳定剂、颜料、硫化/固化剂、促进剂和抑制剂。根据一般技术,使聚合物硫化/固化可获得具有良好机械性能的成分,特别是当用来与增强填充剂接合时,这些填充剂有:炭黑、硬质陶土、沉淀的硅石、滑石粉和硅酸钙,这些组分可以以有形物品的形式存在,例如:管子、电缆外套和传输带。
实例
例1
1千公斤氯丁橡胶(用硫醇改性的、滑石包覆的氯丁橡胶,门尼粘度为38)装在750×530×140毫米底部封闭的袋中,这些袋由0.175毫米厚的、具有维卡软点为99℃的聚乙烯制成。
袋用830分特的共聚多酰胺线缝合,该线熔点为85℃(GrilonK-85)。将40个装满的袋子(每个袋中装有25公斤氯丁橡胶碎片)整齐地堆成1吨的垛。
这些材料的样品以下述方法测试。在87℃时,向布雷本登塑性计槽中加入50克氯丁橡胶碎片和20克SRF炭黑,同时加入0.34克聚乙烯袋材料和0.6厘米长的共聚多酰胺线。这些量的选择与25公斤包装内的量成比例,混合物在布雷本登塑性计中以63r.p.m.的转速混合6分钟。最终混合物的温度为111℃。再用双辊轧机以0.7毫米的辊隙将混合物压成薄片。试验样品看起来与对照样品完全相同,说明聚乙烯和线在混合物中充分分散。用试验混合物制备的挤压产品也与对照挤压产品完全相同,看不出未分散的痕迹。
Claims (10)
1、一种由含热封敏感聚合物包装所构成的物品,其特征是包装是两端封口的热塑袋,至少一端用热塑聚合物线封合,热塑袋材料和热塑线材料的熔点均等于或低于热封敏感聚合物的加工温度。
2、按权利要求1的物品,其特征是热封敏感的聚合物选自:氯丁橡胶、氯化聚乙烯或氯磺化聚乙烯。
3、按权利要求1或2的物品,其特征是热塑袋由聚乙烯构成。
4、按权利要求1或2的物品,其特征是热塑袋由聚乙烯和乙烯/乙酸乙烯酯共聚物的混合物构成。
5、按权利要求3的物品,其特征是聚乙烯的维卡软化点是70-110℃。
6、按权利要求4的物品,其特征是混合物的维卡软化点是60至120℃。
7、按权利要求1或2的物品,其特征是热塑线材料是一种共聚多酰胺线材。
8、按权利要求7的物品,其特征是共聚多酰胺线材料的熔点/维卡软化点为60-120℃。
9、按权利要求1或2的物品,其特征是线材选自:乙烯、丙烯、氯乙烯、1,1-二氯乙烯、乙酸乙烯酯、丙烯腈、丙烯酸酯或异丁烯酸酯的聚合物或共聚物,其熔点/维卡软化点为60-120。
10、按权利要求2的物品,其特征是热塑袋由维卡软化点为70-110℃的聚乙烯构成和线材是熔点为60-120℃的共聚多酰胺线材。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US629,659 | 1990-12-14 | ||
US07/629,659 US5110641A (en) | 1990-12-14 | 1990-12-14 | Melt-dispersible package for melt-processible polymers |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1063084A CN1063084A (zh) | 1992-07-29 |
CN1026881C true CN1026881C (zh) | 1994-12-07 |
Family
ID=24523932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN91112751.8A Expired - Lifetime CN1026881C (zh) | 1990-12-14 | 1991-12-14 | 热熔加工聚合物的可熔散包装 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5110641A (zh) |
EP (1) | EP0630342B1 (zh) |
JP (1) | JP3046841B2 (zh) |
CN (1) | CN1026881C (zh) |
DE (1) | DE69214462T2 (zh) |
WO (1) | WO1993018984A1 (zh) |
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RU2096277C1 (ru) * | 1990-08-01 | 1997-11-20 | Х.Б.Фуллер Лайсенсинг энд Файнэнсинг Инк. | Способ упаковки клеящей композиции (варианты) и упакованная клеящая композиция (варианты) |
US6138441A (en) * | 1993-08-30 | 2000-10-31 | Henkel Kommanditgesellschaft Auf Aktien | Process for production of hotmelt adhesives |
US5725820A (en) * | 1996-10-03 | 1998-03-10 | The Reynolds Company | Method for forming a package of adhesive material in a non-tacky mold |
US20020142931A1 (en) * | 2000-07-19 | 2002-10-03 | The Procter & Gamble Company | Gel form automatic dishwashing compositions, methods of preparation and use thereof |
US8658585B2 (en) | 2000-11-27 | 2014-02-25 | Tanguy Marie Louise Alexandre Catlin | Detergent products, methods and manufacture |
US7125828B2 (en) | 2000-11-27 | 2006-10-24 | The Procter & Gamble Company | Detergent products, methods and manufacture |
AU2002230498A1 (en) | 2000-11-27 | 2002-06-03 | The Procter & Gamble Company | Dishwashing method |
US8940676B2 (en) | 2000-11-27 | 2015-01-27 | The Procter & Gamble Company | Detergent products, methods and manufacture |
AU2002232435A1 (en) | 2000-11-27 | 2002-06-03 | The Procter & Gamble Company | Dishwashing method |
GB0322598D0 (en) | 2003-09-26 | 2003-10-29 | Victrex Mfg Ltd | Polymeric material |
US8017681B2 (en) * | 2006-03-30 | 2011-09-13 | Maxwell Products, Inc. | Systems and methods for providing a thermoplastic product that includes packaging therefor |
US9925694B2 (en) | 2009-02-24 | 2018-03-27 | Gala Industries, Inc. | Continuous bagging processes and systems |
US8955294B2 (en) | 2009-02-24 | 2015-02-17 | Gala Industries, Inc. | Continuous bagging processes and systems |
JP5680635B2 (ja) * | 2009-06-22 | 2015-03-04 | ガラ・インダストリーズ・インコーポレイテッドGala Industries, Inc. | 処理能力が向上したペレット化、乾燥、及び袋詰めの連続システム |
US8505252B2 (en) * | 2009-09-18 | 2013-08-13 | David Landis Campbell | Protective barrier and method for its use |
US20110121222A1 (en) * | 2009-09-30 | 2011-05-26 | Guymon Michael P | Systems and methods for providing a dry froth material |
US9926102B2 (en) | 2014-06-05 | 2018-03-27 | Maxwell Properties, Llc | Systems and methods for providing a packaged thermoplastic material |
US10358296B2 (en) | 2015-09-18 | 2019-07-23 | Maxwell Properties, Llc | Systems and methods for delivering asphalt concrete |
JP2022160260A (ja) * | 2021-04-06 | 2022-10-19 | 住友化学株式会社 | 包装体 |
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US2617775A (en) * | 1949-01-13 | 1952-11-11 | Standard Oil Dev Co | Compounding packaged powders into rubber |
US2955708A (en) * | 1956-05-07 | 1960-10-11 | Firestone Tire & Rubber Co | Polyethylene composition |
US2931148A (en) * | 1957-06-10 | 1960-04-05 | Texas Us Chem Co | Method of wrapping tacky polymer as shipping package and apparatus therefor |
NL245684A (zh) * | 1958-11-27 | 1900-01-01 | ||
US3137864A (en) * | 1961-12-08 | 1964-06-23 | Du Pont | Process of basting and removal of basting |
US3424616A (en) * | 1966-05-03 | 1969-01-28 | Robert W Townsend | Method of removing coatings caused by storage of meal or flour in dry bulk form and particularly for preparing for re-use lined railroad hopper cars |
CH491150A (de) * | 1967-03-13 | 1970-05-31 | Inventa Ag | Verfahren zur Herstellung von ternären Mischpolyamiden |
NL134009C (zh) * | 1967-08-14 | |||
US3649399A (en) * | 1967-11-08 | 1972-03-14 | Manzen Co Ltd | Method in tailoring of preventing one side of cloth folded back from being unfolded |
US3625414A (en) * | 1969-10-22 | 1971-12-07 | Dow Chemical Co | Sealed surface sulfonated plastic-shaped articles |
CA1073571A (en) * | 1975-09-29 | 1980-03-11 | Goodyear Tire And Rubber Company (The) | Packaging films and packaged articles therewith |
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EP0030126A1 (en) * | 1979-11-29 | 1981-06-10 | DON BROTHERS BUIST & COMPANY LIMITED | Process for producing tufted fabric, backing therefor and fabric produced by the process |
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1990
- 1990-12-14 US US07/629,659 patent/US5110641A/en not_active Expired - Lifetime
-
1991
- 1991-12-14 CN CN91112751.8A patent/CN1026881C/zh not_active Expired - Lifetime
-
1992
- 1992-03-17 JP JP5516485A patent/JP3046841B2/ja not_active Expired - Fee Related
- 1992-03-17 DE DE69214462T patent/DE69214462T2/de not_active Expired - Fee Related
- 1992-03-17 EP EP92914897A patent/EP0630342B1/en not_active Expired - Lifetime
- 1992-03-17 WO PCT/US1992/002181 patent/WO1993018984A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE69214462T2 (de) | 1997-03-20 |
JP3046841B2 (ja) | 2000-05-29 |
JPH07504873A (ja) | 1995-06-01 |
CN1063084A (zh) | 1992-07-29 |
WO1993018984A1 (en) | 1993-09-30 |
US5110641A (en) | 1992-05-05 |
EP0630342A1 (en) | 1994-12-28 |
EP0630342B1 (en) | 1996-10-09 |
DE69214462D1 (de) | 1996-11-14 |
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C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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