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TWI245790B - Coextrusion binder based on metallocene polyethylene cografted with non-metallocene polyethylene, and multilayer structure comprising the same - Google Patents

Coextrusion binder based on metallocene polyethylene cografted with non-metallocene polyethylene, and multilayer structure comprising the same Download PDF

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Publication number
TWI245790B
TWI245790B TW090106554A TW90106554A TWI245790B TW I245790 B TWI245790 B TW I245790B TW 090106554 A TW090106554 A TW 090106554A TW 90106554 A TW90106554 A TW 90106554A TW I245790 B TWI245790 B TW I245790B
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polyethylene
metallocene
item
blend
grafted
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Patrice Robert
Christophe Leroy
Jerome Pascal
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Atofina
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Description

1245790 A7 B7 五、發明説明(1 ) I.:發明之敘述〕 (請先閲讀背面之注意事項再填寫本頁) 本發明係關於一種以共接枝之二茂金屬聚乙;):希爲底質 之共擠壓黏合劑,其用於製造一種多層結構之用途及所得 之結構。 先前技藝E P 8 0 2 2 0 7係已敘述以共接枝二 茂金屬聚乙烯及聚丙烯爲底質之黏著劑,在此先前技藝中 ,一摻合物係包含至少一聚乙烯及至少一聚丙烯共接枝, 藉由因游離基接枝起始劑效應而降低聚丙烯之黏度,以便 補償聚乙烯黏度之增加。在本發明中係以二種聚乙烯之摻 合體,所以不需使用上述之方法。 在先前技藝WO — 9 7/2 7 2 5 9敘述一摻合體, 其包含 HDPE,LCDPE,VLDPE 或 LDPE 型 式之(a )聚乙烯,(b ) 5至3 5 %之接枝二茂金屬聚 乙烯,和(c ) 〇至3 5 %之彈性體,該二茂金屬聚乙烯 並未共接枝。 特別地,這些黏合劑並不具有足夠之熱強力,包含這 些黏合劑之多層包裝,其抵抗諸如加熱殺菌法及熱捲取之 熱處理並不佳。 經濟部智慧財產局8工消費合作社印製 本發明黏合劑之優點在於抵抗這些熱處理及各種熱應 力之能力,本發明黏合劑之另一個優點係關於其製品,這 些黏合劑通常可以由熔融接枝及熔融摻合而製得,且此黏 合劑可以在擠壓機或其他相等裝置存在下,以顆粒狀回收 ;本案申請人發現,此造粒過程遠比上述先前技藝之黏合 劑例子來得容易。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) _ :245790
發明説明(2 本發明係關於一黏合劑,其包含: ^ 5至3 5份之聚合物(A ’相對密度介於〇 . Q少布(A 衆乙烯( (請先閲讀背面之注意事項再填寫本頁) ^ ,其中包含8〇至2〇 至〇·915之二茂金屬聚 1 ),與2 0至8 0份之非二茂金屬線性低密度 a L L D P E ) ( A 2 )之摻合物,"i ) S : ^ 2 )之摻合物係藉由一不飽和羧酸共接枝,及 ㈣ 9 5至6 5份選自乙烯均一聚合物或共聚物及彈性 體之聚乙烯(B ); (A )與(B )之摻合物係爲: -接枝不飽和羧酸之含量係介於3 〇至1 〇 5 p p m。 -M F I ( A S T M D1238 標準:19〇t:/ 2,16 1(尽)係介於〇.1及1〇§/1〇分鐘。 根據此黏合劑之一具體例,聚乙烯(A 2 )之相對密 度係介於0 · 9 0 0至0 . 9 5 0。 根據此黏合劑之一*具體例’該接枝單體之比例,相對 於A 1和a 2共接枝之摻合物重量,係爲6 〇 〇至 5 〇 0 〇 p p m。 經 濟 部 智 慧 財 4 局 消 費 备 5 社 印 製 根據此黏合劑之一具體例,該聚乙燏(B )係爲一種 相對密度介於0 · 9 1〇至〇 . 9 3 5之L L D P E。 本發明亦關於一共擠壓黏合劑,其包含8 0至2 0份 ,相對密度介於0 · 8 6 5至0 · 9 1 5之二茂金屬聚乙 烯(A 1 )與2 0至8 0份之非二茂金屬線性低密度聚乙 烯(L L D P E ) C A 2 )之摻合物,(A 1 )和(A 2 )之摻合物係藉由一不飽和羧酸共接枝; 本紙張尺度適用中國國家標準(CNS ) A4規格(210 X 297公釐) -5 - 1245790 Α7 Β7 五、發明説明(3 ) (A 1 )與(A 2 )之摻合物係爲: 〜接枝不飽和羧酸之含量係介於3 0至1 0 5 p p m ; (請先閱讀背面之注意事項再填寫本頁) 〜M F I或融流指數(A S T M D 1 2 3 8標準: 1 9 〇 t: / 2 · 1 6公斤)係介於〇· 1及1〇g / 1 Ο 分鐘。 本發明之主題亦爲一種多層結構,其含有一層包含有 前述申請專利範圍之任一種黏合劑,及直接貼於該層,一 層(Ε ): 〜含氮或含氧之極性樹脂層,諸如:聚醯胺樹脂、脂 肪族聚酮樹脂、皂化乙烯/醋酸乙烯酯共聚物樹脂( Ε ν 〇 Η )或聚酯樹脂;或 一金屬層。 根據該結構之一具體例,其直接貼於黏合劑側者,不 是一聚烯烴層(F );就是選自層(Ε )樹脂之一的樹脂 譽’甚或一金屬層。 本發明之主題亦爲包含上述結構之剛直中空體。 經濟部智慧財產局g(工消費合作社印製
本發明亦關於一種結構,其分別地係包含聚烯烴(F )層,上述之黏合劑,聚醯胺樹脂層或皂化乙烯/乙烯醋 酸酯共聚物(EVOH),上述之黏合層及一聚烯烴(I )層。 這些結構係使用於製造柔細或剛直包裝,諸如:小型 袋,瓶或容器,此包裝可藉由共擠壓,疊層作用或共擠壓 --吹模方法製造。 本發明亦使用於共擠壓軟管或輸送管,以及使用於汽 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) _ 6 - 1245790 A7 B7 五、發明説明(4 ) — 一~' 卓車體之多層燃料桶。 本發明詳述於下: (請先閲讀背面之注意事項再填寫本頁) 關於(A1) , 「二茂金屬聚乙烯」係由乙烯與α — 炀烴’例如:丙烯、丁烯或辛烯,其係在單一位置( 1 e η 〇 s 11 e )觸媒存在下共聚合而得,其一般包含金屬原子, 例如:鋅或鈦及含有接合至該金屬之二個環烷分子,更特 Μ地’該二茂金屬觸媒通常係包含兩個接合至該金屬之環 .戈一丨布’迫些觸媒常用銘氧化物(a 1 u m i η ο X a n e s )作爲共角蜀 媒或活化劑,較佳地係爲甲基鋁氧化物(Μ A 0 ),給亦 司使用於環戊一烯接合之金屬,其他之二茂金屬亦可能包 含I V A,V A和V I A族之過渡金屬,亦可使用鑭系元 素系列之金屬。 這些二茂金屬聚乙烯,其特徵爲:其比値l^r"w / l^rn < 3 ,較佳係< 2,其中及in分別表示重量平均分 子量及數目平均分子量,所稱之二茂金屬聚乙烯係爲 M F R (融體流動指數)小於6 . 5 3,且ITw / in之 比例大於M F R小於4 . 6 3者之聚合物,M F R代表 M F I !。( 1 〇 k g 荷重下之 M F I )至 M F I 2 ( 經濟部智慧財產局K工消費合作社印製 2 .16kg荷重下之MFI),其他二茂金屬聚乙烯係 限制於M F R等於或大於6 . 1 3,且/ in比例小 於或等於M F R小於4 . 6 3者。 更有利地,(A 1 )之相對密度係介於〇 · 8 7 0及 〇.9〇0之間。 關於聚乙烯(A 2 ),其係爲非二茂金屬來源之 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) U45790 A7
^ L [) p p h (線性低密度聚乙烯)型式的乙烯/ α -烯烴 共聚物, (請先閱讀背面之注意事項存填寫本頁) # a〜丨希烴較有利地係具有3至3 0個碳原子。 具有3至3 〇個碳原子之a 一烯烴之例子,可能包含 下之共單體二丙烯、1一丁烯、1一戊烯、3-甲基一 1〜丙燦、1 一己烯、4 —甲基—1—戊烯、3 —甲基一 1〜戊烯、1 一辛烯、1 —癸烯、1 —十二烯、1 一十四 1 十/、燃、1 一十八嫌、1 一 一十嫌、1—二十二 布、1 —二十四烯、1 —二十六烯、1 一二十八烯、及1 〜二十烯、這些a 一烯烴亦可單獨使用或使用二個或更多 a -烯烴之摻合物。 (A 2 )之相對密度較有利地係介於〇 · 9 0 0至 〇 · 9 5 0之間,(A 2 )之M F I係介於0 · 1至 8 g / 1 0 分鐘(1 9 〇 t: / 2 · 1 6 k g )之間。 (A 1 )及(a 2 )之摻合體係以不飽和羧酸接枝, 亦即(A 1 )和(a 2 )係共接枝,使用此酸之官能性衍 生物並未超出本發明之範圍。 經濟部智慧財產苟員工消費合作社印製 不飽和羧酸類之例子係爲那些具有2至2 0個碳原子 者,例如丙烯酸、甲基丙烯酸、順丁烯二酸、延胡索酸和 分解鳥頭酸。這些酸之官能性衍生物係包含,例如,酸酐 類、酯衍生物、醯胺衍生物、亞醯胺衍生物和不飽和羧酸 之金屬鹽類(例如:鹼金屬鹽類)。 不飽和二羧酸類具有4至1 0個碳原子及其官能性衍 生物,特別地係爲其酸酐類,爲較佳之接枝單體。 -本紙張尺國家標準(CNS ) A4規格(210 X297公釐) -8 - 1245790 A7 B7 五、發明説明(6 ) 逼些接枝單體包括,例如,順丁烯二酸、延胡索酸、 乃知鳥頭酸、檸康酸、烯丙基丁二酸、環己一 4 一烯一工 ^羧酸、4 一甲基環己一 4 一烯一 1 ,2 —二羧酸 〜環〔2 . 2 · 1〕庚—5 —烯—2,3 -二羧酸和順 ]細二酸酐、延胡索酸酐、檸康酸酐、烯丙基丁二酸酐、 ^己〜4 —烯一 1 ,2 —二羧酸、4 —甲基環己—4 一烯 〜1 ,2 -二羧酸酐、二環〔2 _ 2 · 1〕庚—5 —烯— 2 ’ 3 —二羧酸酐和x —甲基—二環〔2 · 2 . 1〕一庚 〜5〜烯一 2,2 —二羧酸酐。 其他接枝單體的例子包括:不飽和羧酸之c 1 一 c 8烷 基醋類或縮水甘油酯衍生物,例如:丙烯酸酯、甲基甲基 丙燒酸酯、乙基丙烯酸酯、乙基甲基丙烯酸酯、丙基丙烯 ®夂醋、丙基甲基丙烯酸酯、縮水甘油丙烯酸酯、縮水甘油 甲基丙烯酸酯、單乙基順丁烯二酸酯、二乙基順丁烯二酸 酿、單甲基延胡索酸酯、單甲基分解鳥頭酸酯和二乙基分 解鳥頭酸酯;不飽和羧酸之醯胺衍生物;如:丙烯醯胺、 甲基丙烯醯胺、順丁烯二酸之單醯胺、順丁烯二酸之二醯 胺、順丁烯二酸之N -單乙基醯胺、順丁烯二酸之N,N 一二乙基醯胺、順丁烯二酸之N -單丙基醯胺、順丁烯二 酸之N,N -二丙基醯胺、延胡索酸之單醯胺、延胡索酸 之二醯胺、延胡索酸之N -單-乙基醯胺、延胡索酸之N ’ N -二乙基醯胺、延胡索酸之n -單丙基醯胺;不飽和 羧酸之亞醯胺衍生物、如:順丁烯二亞醯胺、N -丙基順 丁烯二亞醯胺、及N -苯基順丁烯二亞醯胺;及不飽和羧 (請先閲讀背面之注意事項再填寫本頁) 訂 經濟部智¾財產局R工消費合作社印製 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -9 - 1245790 A7 __ B7 五、發明説明(7 ) 酸之金屬鹽類,如:丙烯酸鈉、甲基丙烯酸鈉、丙烯酸鉀 及甲基丙烯酸鉀,較佳係爲順丁烯二酸酐。 (請先閱讀背面之注意事項再填寫本頁) 各種習知製程均可用以將接枝單體接枝於(A 1 )和 (A 2 )之摻合體上,當加工於聚烯烴時,該摻合體一般 而言*係包含添加劑之使用,其含量介於1 〇 ρ ρ ηι和5 % 之間’尤其係如以取代酚型分子爲基礎之抗氧化劑,U V 穩定劑,加工助劑:例如脂肪族醯胺、硬脂酸和共聚類、 ,闬以防止擠壓缺陷之含氟聚合物、醯胺爲基礎之防霧劑、 •例如矽石或滑石之防黏結劑,含有色素之高濃度染色配料 (masterbatches),成核劑。 舉例言之,此可藉由加熱聚合物(A 1 )和(A 2 ) 至高溫,約1 5 0至3 0 0 °C,在溶劑存在下或不存在下 ’使用或不使用游離基起始劑而達成。尤其的,在此反應 中’適合之溶劑可以是苯、甲苯、二甲苯、氯化苯、異丙 苯、適石之游離基起始劑係可使用,包含:特丁基、過氧 化氫、異丙苯過氧化氫、二異丙基苯過氧化氫、二特丁基 過氧化物、特丁基異丙苯過氧化物、二異丙苯過氧化物、 1 ’ 3 -雙(特丁基過氧化異丙基)-苯、丙烯過氧化物 經濟部智慧財產局員工消費合作社印製 、苯基過氧化物、異丁醯基過氧化物、雙(3 ,5 ,5 -三甲基己醯基)過氧化物和甲基乙基酮過氧化物。 在上述方法中選出適當方法接枝改質之(A 1 )和( A 2 )摻合體,其接枝單體量,較佳係爲0 · 〇 1至1 〇 %,而關於接枝(A 1 )和(A 2 )之重量,較佳仍爲 6〇0 p p m至5〇〇0 p p m 。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) _ 1〇 _ 1245790 A7 B7 五、發明説明(8 ) (請先閱讀背面之注意事項再填寫本頁) 接枝單體量可由F T I R光譜偵測琥珀官能基而測得 (A )之M F I ,亦即已共接枝(A 1 )和(A 2 )之 M F Ϊ ,較佳係介於〇 · 1至1 〇之間。 關於聚乙烯(B ),此係爲乙烯均一共聚物或乙烯與 进Μ α -細烴類、不飽和羧酸之酯類或飽和羧酸之乙酯類 單體之共聚物,該α -烯烴類係限制於上,而不飽和羧酸 酯類係爲,例如:烷基(甲基)丙烯酯類,其烷基係具有 1至2 4個碳原子,烷基丙烯酸酯或甲基丙烯酸酯之例子 可使用,尤其是,甲基甲基丙烯酸酯、乙基丙烯酸酯、正 丁基丙烯酸酯、異丁基丙烯酸酯和2 一乙基己基丙烯酸酯 、飽和羧酸之乙酯類係爲,例如:乙基丙烯酸酯或乙基丙 醯酯’ (Β)可爲一種 HDPE、LDPE、LLDPE 或VLDPE聚乙烯或二茂金屬ρε。 經濟部智慧財產局員工消費合作社印製 (Β )亦可能爲只有彈性物特性之聚合物,意即其可 爲在A S T M D 4 1 2中之(i )彈性物之意思,其中 意指材料可於室溫下延伸至其長度之兩倍,以此狀態維持 5分鐘,釋放後可回復至小於其初始長度中1 〇 %之範圍 |Aj,或(i i ) 一種聚合物,其剛好不具有上述特徵,但 可延伸且可回復至接近其初始長度,經由例子,其係由下 述材料製成: 一 E P R s (乙烯—丙烯橡膠’亦稱爲e ρ μ s )和 E P D M s (乙烯一丙烯—二烯三元聚合物、); 一苯乙烯彈性體,諸如s B R s (苯乙烯/ 丁二;c希橡 膠),苯乙烯/ 丁二烯/苯乙烯嵌狀共聚物(s b s ), 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -11 - 1245790 A7 -—-^__67_ __ 五、發明説明(9 ) 朱乙靖/乙烯—丙烯/苯乙烯嵌狀共聚物(S E B S )和 丨布/異戊二烯/苯乙烯嵌狀共聚物(s I s )。 (請先閱讀背面之注意事項再填寫本頁)
更有利的,(B )係爲具有〇 . 9 1 〇至0 · 9 3 5 |wJ相對密度之一線性低密度聚乙烯(L L D P E ),甚至 爲〜具有0 · 9 3 5至〇 · 9 5 0間相對密度之H D P E 更有利地,(A )與(B )之比例係分別爲每9 0至 ’ 0份之(B ),具有1 〇至3 0份之(A )。 根據另一具體例,本發明係關於一複合材料,其包含 以聚乙烯或彈性體(B )稀釋之共接枝(A 1 )和(A 2 }/之單一摻合物,本申請人事實上已發現,調整依各種用 途而以(A )與(B )顆粒混合或摻合之最終黏合劑(亦 即(A )與(b )之摻合體)的濃度係爲可能的。 · 本發明之黏合劑係用於多層結構,舉例言之,如:薄 膜、薄片、管子及如燃料筒之中空體。 本發明之多層結構係包含一具有上述黏合劑之層,與 3有氧或3有氣極性樹脂之一'層(Ε ),或一'金屬層。 經濟部智慧財產局員工消費合作社印製 在層中除了黏合劑外,較佳極性樹脂之例子爲:聚醯 胺樹脂類、脂肪族聚酮、皂化乙烯/醋酸乙烯酯共聚物和 聚酯類。 更特別地,其包含在主鏈中具有醯胺基團之結構單元 的長鏈合成聚醯胺,例如·· Ρ Α - 6,Ρ Α - 6,6,
PA- 6 ’ 10 ’PA- 11,PA- 6/6,6 及 PA 一 1 2 ;具有巷化度數9 0至1 〇 〇m〇 1%之巷化乙j:希 本紙張尺度適用中國國家標準(CNS ) Α4規格(210χ 297公釐) -12 - 124579〇
〃發明説明(1〇) (請先閲讀背面之注意事項再填寫本頁} /酷酸乙烯酯共聚物,其係製自皂化一具有乙烯含量約 〜3窆(3 0 m ◦ 1 %之乙烯/醋酸乙烯酯共聚物、聚酯類 、例如:聚對苯二甲酸乙二酸酯、聚對苯二甲酸丙二酸酉旨 和聚乙烯環烷酸酯,這些樹脂之摻合物,甚或全芳香族聚 ^ _ ’例如:液晶聚合物。 該金屬層可能爲,例如,鋁,鐵,銅,錫及鎳或含有 至少〜種這些金屬爲主成份之合金之金屬薄片,薄膜或箱 °这薄膜或箔之厚度可能適當選擇或是,例如,大約 υ . 0 1至大約〇 · 2 m m。在疊合本發明黏合劑於金屬 '誓前’一般會先去除金屬層表面之油污。含有氧或含有氮 極性樹脂(E )之層可能亦包含一習知用量之已知添加劑 〇 本發明亦包含一結構,其分別包含聚烯烴層(F ), #發明之黏合層,含有氮或含有氧極性樹脂任一層(E ) 或一金屬層。 本發明結構之各層可能包含,例如:塡充劑、穩定劑 、增滑劑、抗靜電劑和防火劑之添加劑。 經濟部智慧財產局員工消費合作社印製 本發明之結構係可由熱塑性塑膠領域中習知之光擠壓 及擠壓一吹模加工而製造。 以下之表1及表2係爲黏合劑之組成’其百分比爲重 量百分比。 比較在表1中之剝離力量値,可看到依據本發明之例 4在2 3 t,具有成比較例2和3更佳之黏合性’且在 5 0至9 0 °C之溫度範圍下,具有比比較例1至3相等或 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 13 1245790 A7 B7 ' -----一>_ ----------- 五、發明説明〇1 ) M佳之黏合性。 比較在表2中之剝離力量値’可看到依據本發明之例 8 ,在2 3 t:和5 0 °C,具有成比較例6和7更佳之黏合 性,且在7 0至9 〇 °c之溫度範圍下’具有比比較例5至 7更佳之黏合性。可以結論的是:共接枝之而種型式P E (二茂金屬和非二茂金屬),由於增強作用(Synergy) ’ 使黏合劑黏合性之增強變爲司能。 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -14 - 1245790 A7 B7 五、發明説明(12 ) 經濟部智慧財產局員工消費合作社印製 比較例1 比較例2 比較例3 例4 聚合物(A) 接+枝A1單獨 接枝A2單獨 接枝A1單獨+ 接枝A2單獨 共接枝A1+A 2 PE之型式 二茂金屬 LLDPE (二茂金屬)+ (LLDPE) (二茂金屬)+ (LLDPE) 相對密度 0.870 0.920 (0.870)+(0.920) (0.870+0.920) 共單體 1-辛烯 1-丁烯 (1—辛偷+(1-丁烯) (1-辛偷+ (1-丁備) 組成 1〇〇%Α1 100%A2 (50%A1)+(50%A2 ) (50%A1)+ (50%A2) 接枝度 0.6% 0.7% 0.65% 0.7% MFI(g/10min .) 190〇C/2.16kg 2.0 0.5 1.1 1.2 (A)之比例 15% 15% 15% 15% 聚乙烯(B) PE之型式 lldpe LLDPE LLDPE LLDPE 共單體 1-丁烯 1-丁烯 1-丁烯 1-丁烯 相對密度 0.910 0.910 0.910 0.910 (B)之比例 85% 85% 85% 85% 剝離強度* (N/15mm) 尜々rf摊Λ口rr T=23°C 12.0 8.5 9.2 11.5 T=50°C 8.3 4.8 5.6 8.3 T=7〇°c 6.2 3.0 3.8 6.9 T=80°C 4.2 2.2 2.9 6.0 T=90°C 0 0.8 0.8 4.1 确 w W鉑扫、僧興EVOH層之間,其係包含5層(PE/黏· $ /=E:0。!!/黏,劑/pE,其中?£只有。·93 5之相對密度,且ev〇: 1二有j8%乙丨希)之共擠壓薄膜,在溫度T及剝離速度爲200m/ min時,其分別具有8〇/1 0/10/10/80 // m之厚度。 一本
(210X 297公釐) -15- (請先閲讀背面之注意事項再填寫本頁) 1245790 A7 B7 五、發明説明(13 ) 表2 比較例5 比較例6 比較例7 例8 聚合物(A) 接枝A1單獨 接枝A2單獨 接枝A1單獨+ 接枝A2單獨 共接枝A1+A2 PE之型式 二茂金屬 LLDPE (二茂金屬)+ (LLDPE) (二茂金屬)+ (LLDPE) 相對密度 0.890 0.930 (0.890)+(0.930) (0.890)+(0.930 ) 共單體 1-辛嫌 1-丁烯 (1-辛嫌)+(1-丁儲) (1-辛燒)+ (1-丁烯) 組成 100%A1 100%A2 (50%A1)+(50%A2) (50%A1)+ (50%A2) 接枝度 0.8% 0.7% 0.75% 0.7% MFI(g/10min .) 190〇C/2.16kg 1.0 0.7 0.8 0.9 (A)之比例 15% 15% 15% 15% 聚乙烯(B) PE之型式 LLDPE LLDPE LLDPE LLDPE 共單體 1-丁烯 1-丁烯 1-丁烯 1-丁烯 相對密度 0.920 0.920 0.920 0.920 (B)之比例 85% 85% 85% 85% 剝離強度* T=23°C 13.1 3.5 5.8 13.0 (N/15mm) T=50°C 9.4 3.2 4.6 9.2 丁=70°C 7.0 2.9 3.4 7.6 T=80°C 5.0 2.4 2.6 6.2 T=90°C 1.2 1.3 1.2 4.3 *剝離測試施於黏合層與EVOH層之間,其係包含5層(PE/黏 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 合劑/EVOH/黏合劑/PE,其中PE只有0.93 5之相對密度,且 EVOE含有38%乙烯)之共擠壓薄膜,在溫度T及剝離速度爲 200m/min時,其分別具有80/ 1 0/ 1 0/ 1 0/80 /zm之厚度。 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -16 -

Claims (1)

  1. 六、申請專利範圍 1 1 . 一種共擠壓黏合劑,其包含: 一 5至3 5份之聚合物(A ),其係由8 0至2 〇份 相對密度介於0 · 8 6 5至0 · 9 1 5之二茂金屬聚乙條 (A 1 )與2 0至8 0份之非二茂金屬L L D P E聚乙烯 (A 2 )所構成,該(A 1 )與(A 2 )之摻合物係藉由 不飽和羧酸爲接枝單體共接枝,及 - 9 5至6 5份選自乙烯均聚物或共聚物及彈性體> 聚乙烯(B ); (A )與(B )之摻合物係爲: —接枝不飽和羧酸之含量係介於3 0至1 0 5 p p m > —M F I或融流指數(A S T M D 1 2 3 8標準: 1 9 〇 °C / 2 · 1 6 k g )係介於 Ο · 1 及 1 0 g / 丄 〇 分鐘。 (請先閱讀背面之注意事碩再填寫本頁} -訂· 密 專對 請 相 申之 如,J . 2 2 A /~\ 烯 第 圍 /νπϋ 利 ο 於 介 係 度 乙 聚 。 中 ο 其 5 , 劑· 合〇 黏至 之 述 所 項 〇 〇 9 中重 其物 , 合 劑摻 合之 黏 } 之 2 項 A 2 ( 第與 或 } 項 1 1 A 第C 圍枝 範接 利共 專依 G 請例 5 申比至 如 之 ο • 體 ο 單 6 枝爲 接 巨里 3 經濟部智慧財產局員工消費合作社印製 4 烯 乙 聚 111 P P 〇 〇 第 圍 範 利 專 請係ΐ Μ 如 Β 2 第 或 項 9 ο 於 介 度 密 對 相 爲 中 其 劑 合 黏 之至 項 ο 之共 Om 二 間種 5 一 3 . 9 5 ο . 至 〇 ο 於 2 介與 度 ) Ε Ρ D L L 密 對 相 份 〇 2 至 ο 8 由 係 其 劑 合 黏 壓 擠 1—/ C\J A A ./V /|\ 烯烯 乙乙 聚聚 屬 E 金 P 茂D 二 L 之 L 5 屬 1 金 9 茂 •二 ο 非 至之 份 ο 8 5 6 8 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -17- 1245790 Α8 Β8 C8 D8 六、申請專利範圍 2 )之摻合物所構成’該(A1 )和(A2)之摻合物係藉 由不飽和羧酸共接枝; (A 1 )與(A 2 )之摻合物係爲: -接枝不飽和羧酸之含量係介於3 0至1 〇 5 p p m ; —M F I或融流指數(A S T M D 1 2 3 8標準: 1 9 0 °C / 2 · 1 6公斤)係介於〇· 1及〇 g /工〇 分鐘。 6 · —種多層結構,其包含一層含有申請專利範圍第 1至5項中任一項之黏合劑且直接連貼於該層(e ): -含有氮或氧之極性樹脂層,諸如聚醯胺樹脂、脂肪 族聚酮樹脂、皂化乙烯/醋酸乙烯酯共聚物樹脂( E V〇Η )或聚酯樹脂;或 -金屬層。 7 ·如申請專利範圍第6項之結構,其中聚烯烴層( F ),或選自層(Ε )樹脂之樹脂層或金屬層係直接連貼 該黏合劑側。 (請先聞讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 - 18- 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ297公釐)
TW090106554A 2000-03-24 2001-03-21 Coextrusion binder based on metallocene polyethylene cografted with non-metallocene polyethylene, and multilayer structure comprising the same TWI245790B (en)

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