CN1132889C - 紫外线固化性粘合剂组合物及其物品 - Google Patents
紫外线固化性粘合剂组合物及其物品 Download PDFInfo
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- CN1132889C CN1132889C CN97190701A CN97190701A CN1132889C CN 1132889 C CN1132889 C CN 1132889C CN 97190701 A CN97190701 A CN 97190701A CN 97190701 A CN97190701 A CN 97190701A CN 1132889 C CN1132889 C CN 1132889C
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- Prior art keywords
- methyl
- acrylate
- ultraviolet
- weight
- curing adhesive
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Abstract
公开了一种紫外线固化性粘合剂组合物,以及具有这种粘合剂组合物固化层的物品。所说的组合物含有分子量450~3000的双酚型环氧(甲基)丙烯酸酯(A)、分子量400~10000的尿烷(甲基)丙烯酸酯(B),以及(A)和(B)之外的(甲基)丙烯酸酯单体(E)和光聚合引发剂(F)。
Description
技术领域
本发明涉及紫外线固化性粘合剂组合物,尤其是涉及在具有金、银、硅、硅化合物等无机半透明膜(以下记作半透明膜)的基体材料(1)、具有铝等金属溅射膜(以下记作金属溅射膜)的基体材料(2)和聚碳酸酯系、聚丙烯酸系、聚乙烯系等树脂基体材料(3)互相粘合时,经紫外线固化,能够保持充分粘合强度的粘合型光盘用粘合剂组合物。
背景技术
单面读取的粘合型光盘的代表性实例,是DVD(数字视盘或数字通用盘)等粘合型光盘(以下也叫作粘合型光盘);过去是将聚碳酸酯等树脂基体材料(3)粘合在金属溅射基体材料(2)上制成的。但是,对于要求具有更高记录密度的粘合型光盘来说,一种重要的技术是一片光盘由多层层叠而成。对于在多层上记录信息来说,除了传统的金属溅射层等反射层之外,还必须额外形成一层由金、硅、硅化合物等形成的反射层、透光层作为半透明膜层。也就是说,以最近的DVD-9和DVD-18为代表的单面读取的多层式粘合型光盘,除了聚碳酸酯基体材料和金属溅射基体材料等之外,还必须将半透明膜基体材料(1)充分粘合在一起。
过去在金、银、硅、硅化合物等膜的粘合时,与其他无机物相比,由于界面呈非活性态,所以很难产生有效粘合的化学作用和物理作用。其结果,粘合时得不到充分的粘合强度,或者必须进行底漆处理,所以目前的现状是尚不能提供在性能和生产率上能够充分满足要求的粘合剂。
对于过去的粘合方法或者粘合剂来说,在光盘的粘合时,上述三种材料中,特别对于半透明膜基体材料(1)来说,粘合强度不足,或者必须进行底漆处理,所以生产率低,人们渴望解决这种问题。
发明的公开
本发明人等为了解决上述问题进行了深入研究,结果发现:使用分子量450~3000的双酚型环氧(甲基)丙烯酸酯(A)、分子量400~10000的尿烷(甲基)丙烯酸酯(B),以及(A)和(B)之外的(甲基)丙烯酸酯单体(E)和光聚合引发剂(F),能够得到适于粘合非活性基体材料的高强度紫外线固化性粘合剂,因而完成了本发明。
也就是说,本发明涉及:
(1)一种紫外线固化性粘合剂组合物,其中含有分子量450~3000的双酚型环氧(甲基)丙烯酸酯(A)、分子量400~10000的尿烷(甲基)丙烯酸酯(B),以及(A)和(B)之外的(甲基)丙烯酸酯单体(E)和光聚合引发剂(F)。
(2)上述(1)中所述的紫外线固化性粘合剂组合物,其中所说的尿烷(甲基)丙烯酸酯(B)具有聚酯、聚醚或聚碳酸酯结构。
(3)上述(1)中所述的紫外线固化性粘合剂组合物,其中所说的(A)和(B)之外的(甲基)丙烯酸酯单体(E)中,含有具有环状结构的(甲基)丙烯酸酯单体(C)。
(4)上述(1)或(2)中所述的紫外线固化性粘合剂组合物,其中所说的(A)和(B)之外的(甲基)丙烯酸酯单体(E)中,含有具有环状结构的(甲基)丙烯酸酯单体(C)和具有羟基的脂肪族(甲基)丙烯酸酯单体(D)。
(5)上述(1)至(4)中任何一项所述的紫外线固化性粘合剂组合物,其中作为紫外线固化性粘合剂中的不挥发成分,含有5~70重量%分子量450~3000的双酚型环氧(甲基)丙烯酸酯(A)、5~60重量%分子量400~10000的尿烷(甲基)丙烯酸酯(B),以及10~80重量%(A)和(B)之外的(甲基)丙烯酸酯单体(E)和0.01~20重量%的光聚合引发剂(F)。
(6)上述(5)中所述的紫外线固化性粘合剂组合物,其中所说的(A)和(B)之外的(甲基)丙烯酸酯单体(E)是由100~30重量%具有环状结构的(甲基)丙烯酸酯单体(C)、0~70重量%具有羟基的脂肪族(甲基)丙烯酸酯单体(D)以及0~20重量%(C)和(D)之外的(甲基)丙烯酸酯单体组成的。
(7)上述(5)中所述的紫外线固化性粘合剂组合物,其中所说的(A)和(B)之外的(甲基)丙烯酸酯单体(E)是由95~30重量%具有环状结构的(甲基)丙烯酸酯单体(C)、5~70重量%具有羟基的脂肪族(甲基)丙烯酸酯单体(D)以及0~20重量%(C)和(D)之外的(甲基)丙烯酸酯单体组成的。
(8)具有由上述(1)~(7)中任何一项紫外线固化性粘合剂组合物形成的固化物层的物品。
(9)上述(8)中所述的物品,是光盘。
(10)上述(9)中所述的物品,其中所说的光盘是DVD。
(11)上述(10)中所述的物品,其中所说的DVD是单面读取的二层式DVD。
实施发明的最佳方式
本发明的紫外线固化性粘合剂组合物,含有分子量450~3000的双酚型环氧(甲基)丙烯酸酯(A)、分子量400~10000的尿烷(甲基)丙烯酸酯(B),以及(A)和(B)之外的(甲基)丙烯酸酯单体(E)和光聚合引发剂(F)作为必要成分;而且根据需要还可以含有(甲基)丙烯酸酯低聚物(G)、高分子聚合物、溶剂和各种添加剂等其他成分(H)。在本发明的紫外线固化性粘合剂组合物中,存在(A)成分和(B)成分能够发挥紫外线固化性粘合剂的基本性质,(E)成分的存在能够进一步提高该性质。
本发明中使用的分子量450~3000的双酚型环氧(甲基)丙烯酸酯(A),是通过双酚型环氧树脂与(甲基)丙烯酸或羟基(甲基)丙烯酸酯之间反应得到的环氧(甲基)丙烯酸酯。所说的双酚型环氧树脂,可以举出例如埃皮科特(ェピコ一ト, Epikote,环氧树脂商品名)-828、埃皮科特-1001、埃皮科特-1004等(这些都是油化壳牌环氧株式会社产品的商品名)双酚A型环氧树脂,以及埃皮科特-4001P、埃皮科特-4002P、埃皮科特-4003P等(这些都是油化壳牌环氧株式会社产品的商品名)双酚F型环氧树脂等。优选的双酚型环氧(甲基)丙烯酸酯(A),可以举出双酚A型环氧树脂。
本发明中使用的分子量400~10000的尿烷(甲基)丙烯酸酯(B),是通过有机多异氰酸酯与羟基(甲基)丙烯酸酯化合物之间的反应,或者通过多元醇与有机多异氰酸酯和羟基(甲基)丙烯酸酯化合物之间的反应得到的。
所说的多元醇,可以举出聚丙二醇、聚四亚甲基二醇等聚醚多元醇,由多元醇(详见后述)和多元酸(例如琥珀酸、苯二甲酸、六氢邻苯二甲酸酐、对苯二甲酸、己二酸、壬二酸、四氢邻苯二甲酸酐等)反应得到的聚醚多元醇,通过多元醇(先见后述)与上述多元酸和ε-己内酯反应或者通过多元醇(先见后述)与ε-己内酯反应得到的聚醚多元醇,以及聚碳酸酯多元醇(例如由1,6-己二醇与二苯基碳酸酯反应得到的聚碳酸酯多元醇)等。所说的有机多异氰酸酯,可以举出例如异佛尔酮二异氰酸酯、六亚甲基二异氰酸酯、苯亚甲基二异氰酸酯、二甲苯二异氰酸酯、二苯基甲烷-4,4’-二异氰酸酯、二环戊烯基二异氰酸酯等。特别优选的(B)成分,是使用聚酯多元醇、聚醚多元醇、聚己内酯多元醇及聚碳酸酯多元醇作为多元醇得到的,具有聚酯、聚醚或聚碳酸酯结构的尿烷(甲基)丙烯酸酯。
所说的多元醇,可以举出例如新戊二醇、乙二醇、二乙二醇、丙二醇、1,6-己二醇、1,4-丁二醇、三羟甲基乙二醇、季戊四醇、三环癸烷二甲醇、双(羟甲基)环己烷等。
本发明中使用的所说的、(A)和(B)之外的(甲基)丙烯酸酯单体(E),优选使用例如具有脂环、芳香环或杂环结构的(甲基)丙烯酸酯单体(C)和/或具有羟基的脂肪族(甲基)丙烯酸酯单体(D)。
作为具有环状结构的(甲基)丙烯酸酯单体(C),可以举出例如分子中至少具有一个(甲基)丙烯酰基的单体,例如三环癸烷(甲基)丙烯酸酯、二环戊烯基(甲基)丙烯酸酯、异冰片基(甲基)丙烯酸酯、金刚烷基(甲基)丙烯酸酯、苯基(甲基)丙烯酸酯、苄基(甲基)丙烯酸酯、四氢呋喃基(甲基)丙烯酸酯、吗啉基(甲基)丙烯酸酯、苯基缩水甘油基(甲基)丙烯酸酯等,以及分子中至少具有两个以上(甲基)丙烯酰基的多官能单体,例如三[(甲基)丙烯酸基乙基]异氰尿酸酯、己内酯改性的三[(甲基)丙烯酸基乙基]异氰尿酸酯、二环戊烯基二(甲基)丙烯酸酯、三环癸烷二羟甲基二(甲基)丙烯酸酯、氢化新戊醛三羟甲基丙烷二(甲基)丙烯酸酯等。此外,分子中至少具有一个(甲基)丙烯酰基的单体,包括上面提到的经环氧化物改性的单体成分(C),而且优选使用这种单体。特别优选经2~3个碳原子的环氧化物改性的这种单体,例如应当提到的是二环戊二烯氧代乙基(甲基)丙烯酸酯、苯氧基乙基(甲基)丙烯酸酯等。
所说的具有羟基的脂肪族丙烯酸酯(D),优选具有2~9个碳原子脂肪族基团的丙烯酸酯化合物,尤其是具有2~4个碳原子脂肪族基团的丙烯酸酯化合物。可以举出分子中具有一个(甲基)丙烯酰基的单体,例如2-羟乙基(甲基)丙烯酸酯、2-羟丙基(甲基)丙烯酸酯、4-羟丁基(甲基)丙烯酸酯、2-羟基-3-苯氧丙基(甲基)丙烯酸酯、环氧乙烷改性的磷酸二(甲基)丙烯酸酯、N-羟甲基丙烯酰胺等;分子中至少具有两个以上(甲基)丙烯酰基的多官能单体,例如季戊四醇三(甲基)丙烯酸酯、甘油二(甲基)丙烯酸酯、二缩三甘油二(甲基)丙烯酸酯、表氯醇改性的苯二甲酸二(甲基)丙烯酸酯、表氯醇改性的1,6-己二醇二(甲基)丙烯酸酯、表氯醇改性的丙二醇二(甲基)丙烯酸酯、表氯醇改性的乙二醇二(甲基)丙烯酸酯、表氯醇改性的甘油三(甲基)丙烯酸酯、表氯醇改性的三羟甲基丙烷三(甲基)丙烯酸酯、环氧乙烷改性的磷酸二(甲基)丙烯酸酯等。
上述所说的(C)和(D)之外的(甲基)丙烯酸酯单体(E),可以举出单官能丙烯酸酯化合物,例如2-甲氧乙基(甲基)丙烯酸酯、3-甲氧丁基(甲基)丙烯酸酯、甲氧基三乙二醇(甲基)丙烯酸酯、丁氧乙基(甲基)丙烯酸酯、甲氧基二丙二醇(甲基)丙烯酸酯、双丙酮(甲基)丙烯酰胺、N-正丁氧甲基(甲基)丙烯酰胺等;具有4~9个碳原子的脂肪族二醇的二官能(甲基)丙烯酸酯化合物,例如新戊二醇二(甲基)丙烯酸酯、1,6-己二醇二(甲基)丙烯酸酯等;或者其改性化合物,即具有8~46个碳原子的聚醚类二元醇型二官能(甲基)丙烯酸酯化合物,例如新戊二醇羟基新戊酸二(甲基)丙烯酸酯、新戊二醇改性的三羟甲基丙烷二(甲基)丙烯酸酯、聚乙二醇二(甲基)丙烯酸酯、三聚丙二醇二(甲基)丙烯酸酯等;三官能或多官能的(甲基)丙烯酸酯化合物,例如三羟甲基丙烷等三(甲基)丙烯酸酯、季戊四醇三(甲基)丙烯酸酯、2~5个碳原子脂肪烃改性的二季戊四醇五(甲基)丙烯酸酯、2~5个碳原子脂肪烃改性的二季戊四醇四(甲基)丙烯酸酯、二季戊四醇六(甲基)丙烯酸酯、己内酯改性的二季戊四醇六(甲基)丙烯酸酯、季戊四醇四(甲基)丙烯酸酯、二(三羟甲基)丙烷四(甲基)丙烯酸酯等等。
(A)和(B)之外的(甲基)丙烯酸酯单体(E),主要用于进一步改进粘合性。例如,为了改善对于光盘基板等塑料制品的粘合性,优选使用具有环状结构的(甲基)丙烯酸酯单体(C);为了进一步改善对于半透明膜和金属等的粘合性,优选使用具有羟基的脂肪族(甲基)丙烯酸酯单体(D);而且为了满足进一步要求,最好使用属于(C)和(D)之外的(甲基)丙烯酸酯单体。
这些成分的适用比例如下:具有环状结构的(甲基)丙烯酸酯单体(C)优选使用大约100~30重量%,更优选使用100~50重量%,最好是100~65重量%;具有羟基的脂肪族(甲基)丙烯酸酯单体(D),优选使用大约0~70重量%,更优选使用0~50重量%,最好是0~35重量%;(C)和(D)之外的(甲基)丙烯酸酯单体,优选使用大约0~20重量%,更优选使用0~15重量%,最好是0~10重量%。
此外,使用具有羟基的脂肪族(甲基)丙烯酸酯单体(D)作为必要成分时,其使用比例优选大约5~70重量%,更优选10~50重量%,最好是15~35重量%;(C)成分以及(C)和(D)之外的(甲基)丙烯酸酯单体的使用比例,与上述相同。
还可以与其他成分并用的(甲基)丙烯酸酯低聚物成分(G)(以下也叫做低聚物成分(G)),可以举出利用聚酯多元醇与(甲基)丙烯酸反应得到的聚酯(甲基)丙烯酸酯等。而聚酯多元醇是由多元醇与多元酸反应得到的。所说的多元醇,可以举出例如新戊二醇、乙二醇、丙二醇、1,6-己二醇、三羟甲基丙烷、季戊四醇、二羟甲基三环癸烷、双(羟甲基)环己烷等。所说的多元酸,可以举出例如琥珀酸、苯二甲酸、六氢邻苯二甲酸酐、对苯二甲酸、己二酸、壬二酸、四氢邻苯二甲酸酐等。这些低聚物成分(G)在需要调节树脂溶液的粘度和改善固化后的弯曲性时使用。
本发明中使用的光聚合引发剂(F),可以举出例如1-羟基环己基苯基酮、(1-6-η-枯烯)(η-环戊二烯基)铁(1+)六氟磷酸(1-)、2,2-二甲氧基-2-苯基乙酰苯、米蚩酮、2-甲基-[4-(甲硫基)苯基]-2-吗啉代-1-丙烷、2-苄基-2-二甲胺基-1-(4-吗啉代苯基)丁酮-1、2-氯硫代呫吨酮、2,4-二甲基硫代呫吨酮、2,4-二异丙基硫代呫吨酮、异丙基硫代呫吨酮、2,4,6-三甲基苯甲酰基二苯基氧化膦、双(2,6-二甲氧基苯甲酰基)-2,4,4-三甲基苯基氧化膦等。具体优选的光聚合引发剂,可以举出例如吸收波长不小于360nm而且不大于450nm,其克分子消光系数不小于400的化合物,例如米蚩酮、2-苄基-2-二甲胺基-1-(4-吗啉代苯基)丁酮-1、2-氯硫代呫吨酮、2,4-二甲基硫代呫吨酮、2,4-二异丙基硫代呫吨酮、异丙基硫代呫吨酮、2,4,6-三甲基苯甲酰基二苯基氧化膦、双(2,6-二甲氧基苯甲酰基)-2,4,4-三甲基苯基氧化膦等。这些光聚合引发剂既可以单独使用,也可以以任何比例将两种或多种混合使用。
使用上面提到的诸成份作为本发明的紫外线固化性粘合剂组合物中的不挥发性物质,使分子量为450~3000的双酚A型环氧(甲基)丙烯酸酯(A)含量优选达到大约5~70重量%,更优选大约10~50重量%,最好大约10~30重量%;使分子量400~10000的尿烷(甲基)丙烯酸酯(B)含量优选达到大约5~60重量%,更优选大约20~60重量%,最好大约30~50重量%;使(A)和(B)之外的(甲基)丙烯酸酯单体(E)含量优选达到大约10~80重量%,更优选大约20~70重量%,最好大约30~50重量%;使光聚合引发剂(F)含量优选达到大约0.01~20重量%,更优选大约1~15重量%,最好大约3~10重量%;而且使上述成分之外的(甲基)丙烯酸酯低聚物(G)含量优选达到大约0~30重量%,更优选大约0~20重量%,最好大约0~10重量%。
必要时,可以在本发明中使用胺类光聚合引发助剂。作为光聚合引发助剂,例如可以举出2-二甲基氨基乙基苯甲酸酯、二甲基氨基苯乙酮、对二甲基氨基苯甲酸乙酯和对二甲基氨基苯甲酸异戊酯等。所说的光聚合引发助剂的使用量,按从组合物中除去溶剂等挥发物质后得到的成分计,一般优选0~15重量%,更优选大约0~10重量%。
而且必要时,在本发明中也可以使用高分子聚合物、有机溶剂和各种添加剂等成分(H)。所说的高分子聚合物,例如可以使用聚酯类、聚碳酸酯类、聚丙烯酸酯类、聚氨酯类、聚乙烯类等树脂。所说的有机溶剂,可以举出甲苯、二甲苯、丁酮、异丙醇、二乙二醇、单乙基醚乙酸酯、二乙二醇单丁醚、二乙二醇单丁醚乙酸酯、二乙二醇单乙醚和二乙二醇二乙基醚等。所说的添加剂,例如可以举出硅烷偶合剂、聚合抑制剂、均化剂、表面润滑剂、消泡剂、光稳定剂、抗氧化剂、防静电剂、填料等。所说的硅烷偶合剂,例如可以举出烷基型、胺型、(甲基)丙烯酸酯型、异氰酸酯型、环氧型、硫醇型等。所说的聚合抑制剂,例如可以举出metoquinone、甲基氢醌等。所说的均化剂、表面润滑剂和消泡剂,可以举出例如有机聚合物型、硅型、氟型等。所说的抗氧化剂,可以举出受阻胺型、受阻酚型、高分子量苯酚型等。所说的防静电剂,可以举出季铵盐型、聚醚型、导电粉末等。所说的填料,可以举出硅胶、二氧化钛、氧化铝、导电粉末等。例如,当必须调节树脂溶液的粘度和改善固化后的弯曲性时使用这些成分。
在常温~80℃下,使用或者不用有机溶剂,混合溶解上述诸成分,可以得到本发明的粘合剂组合物。利用惯常方法,借助于紫外线、可见光激光等光线照射,可以得到本发明组合物的固化物。使用紫外线等光线照射本发明的粘合剂组合物使之固化时,具体利用低压或高压汞灯、金属卤化物灯或者氙灯等的紫外线进行照射。
本发明的粘合剂组合物,一方面可以用作被粘合物粘合金属溅射处理基体材料(2)的金属溅射表面,另一方面也可以作为被粘合物粘合半透明膜处理基体材料(1)的半透明膜表面或者聚碳酸酯等树脂基体材料(3)的表面。而且还可以用作半透明膜处理基体材料(1)的半透明膜表面之间、金属溅射处理基体材料(2)的金属溅射表面之间,或者聚碳酸酯等树脂基体材料(3)之间的粘合剂。对于上述的基体材料(1)~(3)本身的材质或其形状,并没有特别限制;例如可以是由聚乙烯类树脂、聚碳酸酯类树脂、聚丙烯酸酯类树脂、无定型聚烯烃类树脂等树脂为原料制成的基体材料,板状或片状材料都可以使用。
本发明的物品,具有由上述紫外线固化性粘合剂组合物形成的固化物层,其实例有光盘、IC卡、ID卡、光卡等。优选的物品是DVD,尤其是以单面读取的双层型DVD为代表的粘合型光盘。
本发明的物品例如可以用下述方法得到:将一定量本发明的紫外线固化性粘合剂组合物涂布在或者施于上述任何一种基体材料(1)~(3)上,或者尤其是在单面读取的双层型DVD情况下,涂布在或者施于金属溅射处理基体材料(2)的金属溅射表面上或者透明膜处理基体材料(1)的透明膜表面上,紫外线固化性粘合剂夹在上述基体材料和带有金属溅射表面或者透明膜表面侧的另一种基体材料之间,用紫外线从所说的两种基体材料的任何1种的上方照射此复合材料,使本发明的紫外线固化性粘合剂固化,以便将所说的基体材料粘合在一起。在双侧读取型DVD的情况下,将一定量本发明的紫外线固化性粘合剂涂布在或者施于金属溅射处理基体材料(2)的金属溅射表面上,然后将紫外线固化性粘合剂夹在上述基体材料和另一种金属溅射处理基体材料(2)的金属溅射表面之间,以与上述相同的方式将所说的基体材料互相粘合在一起。这些方法中,必要时可以使用可见光激光代替紫外线进行固化。作为涂覆手段,例如可以举出辊涂机、旋涂机、2P法涂布器、丝网印刷等等。其中所说的2P法是指这样一种方法,该方法在基板之一上滴加粘合剂,并对另一待粘合的基板加压使它们粘合在一起。
所说的固化层的膜厚度优选1~200微米,更优选10~150微米,最好为大约30~100微米。当然,如单面单层型DVD那样,即使在将金属溅射处理基体材料(2)的金属溅射表面粘合到尚未经历半透明或不透明处理的基体材料上的情况下,本发明也能适用。
其中,所说的单面读取式双层型DVD由于具有利用半透明膜层按照读取光的焦点透过或反射激光的性质,所以被称为DVD-9(层叠两张这种片材制成的物品叫做DVD-18),通常将其用作ROM(只读存储)。这种物品的制造方法是:将一种DVD基板(其写有信息的、例如由聚碳酸酯制成的、基体材料的写信息表面经过金属溅射处理)粘合到另一种DVD基板(例如由聚碳酸酯制成的、其透明基体材料的写信息表面上具有透明膜表面)上,使其上写入的信息相似,按照这种方式得到的物品中,金属溅射处理的表面与半透明膜层表面互相面对。所说的溅射膜的金属,例如是铝;所说的透明膜,例如可以举出金、银、硅、硅化合物等薄膜。
本发明将用以下实施例作更详细说明。其中,实施例中的“份数”是指重量份数。实施例1~5和对照例1~4
将下表1中所示成分中的树脂成分,于60℃下搅拌溶解1小时。然后加入光聚合引发剂,制成了实施例1~5和对照例1~4中的紫外线固化性粘合剂组合物。将得到的各种组合物涂布在一种基体材料的粘合面(使用金薄膜作为半透明膜处理后聚碳酸酯材料(1)的半透明膜面,使用铝作为金属处理后聚碳酸酯材料(2)的金属溅射面,以及聚碳酸酯树脂材料(3)的表面)上大约50微米厚,使该涂布面与另一种基体材料粘合面密合在一起,使用备有高压汞灯(80瓦/厘米)的固化装置使之固化,将各种基体材料粘合在起。接着剥离被粘合的基体材料,观察其表面状态,观察结果示于表1之中。
表中所示各组成的缩写符号如下。其中,表中的数值是重量份数。EPA-1:双酚A型环氧丙烯酸酯,日本化药(株)制;UX-2301:聚醚类尿烷丙烯酸酯,日本化药(株)制;UX-4101:聚酯类尿烷丙烯酸酯,日本化药(株)制;M-1200:聚酯类尿烷丙烯酸酯,东亚合成(株)制;M-315:三(丙烯酸基乙基)异氰尿酸酯,东亚合成(株)制;MANDA:氢化新戊酸新戊二醇二丙烯酸酯,日本化药(株)制;HDDA:1,6-己二醇二丙烯酸酯,日本化药(株)制;R-561:苯氧乙基丙烯酸酯,日本化药(株)制;FA-513A:三环癸烷丙烯酸酯,日立化成(株)制;TC-101:四氢呋喃基丙烯酸酯,日本化药(株)制;HO:2-羟基乙基甲基丙烯酸酯,共荣社化学(株)制;PM-2:双(2-甲基丙烯酸基乙基)磷酸酯,日本化药(株)制;DETX:2,4-二乙基硫代占吨酮,日本化药(株)制光聚合引发剂;Irg-184:1-羟基环己基苯基酮,CIBA GEIGY公司制光聚合引发剂;Irg-1800:Irg-184与双(2,6-二甲氧基苯甲酰基)2,4,4-三甲基戊基氧化膦的混合物,CIBA GEIGY公司制光聚合引发剂;TPO:2,4,6-三甲基苯甲酰基二苯基氧化膦,BASF制光聚合引发剂;DMBI:对二甲基氨基苯甲酸异戊酯,日本化药(株)制光聚合引发助剂。
表1
○:溅射膜或金薄膜从聚碳酸酯板(基体材料)上完全剥离,剥离时伴随着基体材料的破坏或者聚碳酸酯板被破坏;△:溅射膜或金薄膜从聚碳酸酯板上部分剥离,在剥离面上产生皱褶状龟裂,或者在聚碳酸酯板的剥离面上产生皱褶状龟裂;×:溅射膜或金薄膜残存在聚碳酸酯板上,或者聚碳酸酯板之间被简单剥离。
| 树脂 | 实施例 | 对照例 | ||
| 1 2 3 4 5 | 1 2 3 4 | |||
| A | EPA-1 | 30 20 20 30 40 | 40 - - 50 | |
| B | UX-4101UX-2301M-1200 | 20 - 30 20 -- - - 10 -- 20 - - 20 | - 35 35 -- - - -- - - - | |
| E | C | M-315R-561FA-513ATC-101 | - 20 - - -- - - - 3050 - - - -- 40 20 20 - | 10 - - -- 40 - 30- - - -40 - - - |
| D | HEMAPM-2 | - - 10 20 -- - - - - | 10 - 20 -- - - 10 | |
| MANDAHDDA | - - 20 - -- - - - - | - - 25 -- 25 20 20 | ||
| F | DETXIrg-184Irg-1800TPODMBI | - 5 - - -3 - 5 5 53 - 2 1 1- - - - -- 3 - - - | - - - -- 7 - 5- - - -5 - 5 5- - - - | |
| 基材/基材 | 粘合性 | |||
| (1)/(3)(2)/(3)(3)/(3)(1)/(2) | ○ ○ ○ ○ ○○ ○ ○ ○ ○○ ○ ○ ○ ○○ ○ ○ ○ ○ | ○ × × ○○ × △ ○× ○ △ ×△ × × △ | ||
如表1中所示,与对照例1~4中的粘合剂相比,实施例1~5中的组合物具有良好的粘合性;在以DVD为代表的、层叠有信息纪录层的、单面读取式粘合型光盘用途中,可以用于聚碳酸酯等树脂基体材料(3)、金属溅射处理基体材料(2)和半透明膜处理基体材料之间粘合,是合适的紫外线固化性粘合剂。
本发明的紫外线固化性粘合剂组合物,对于DVD等粘合型光盘来说,将涂有金、银、硅、硅化合物等薄膜的半透明膜处理基体材料(1)、铝等金属溅射膜处理基体材料(2)和聚碳酸酯等树脂基体材料(3)之间粘合后,利用紫外线固化,能够保持光盘的性能和形状,是能够保证上述(1)~(3)三种基体材料具有充分粘合强度和良好综合性能的粘合剂,对于粘合型光盘来说,尤其是对于粘合了半透明膜处理基体材料和金属溅射膜处理基体材料的DVD-ROM来说,从粘合性、保护和生产率的观点来看是极为有用的。
本申请基于1996年4月25日提出的PCT/JP96/01134号国际专利申请和1996年6月21日提出的平成8年第179870号日本专利申请,通过参照将其内容全部并入本文之中。
本申请在作为指定国之一的美国是1996年12月19日提出的美国申请号08/765016的部分继续申请,通过参照将其说明书的内容全部并入本说明书之中。
Claims (7)
1、一种紫外线固化性粘合剂组合物,其中含有分子量450~3000的双酚型环氧(甲基)丙烯酸酯(A)、分子量400~10000的尿烷(甲基)丙烯酸酯(B),以及具有环状结构的(甲基)丙烯酸酯单体(C)和/或具有羟基的脂肪族(甲基)丙烯酸酯单体(D)和光聚合引发剂(F)。
2、权利要求1中所述的紫外线固化性粘合剂组合物,其中所说的尿烷(甲基)丙烯酸酯(B)具有聚酯、聚醚或聚碳酸酯结构。
3、权利要求1中所述的紫外线固化性粘合剂组合物,其中作为紫外线固化性粘合剂中的不挥发成分,含有5~70重量%的分子量450~3000的双酚型环氧(甲基)丙烯酸酯(A)、5~60重量%的分子量400~10000的尿烷(甲基)丙烯酸酯(B),以及具有环状结构的(甲基)丙烯酸酯单体(C)和/或具有羟基的脂肪族(甲基)丙烯酸酯单体(D)和0.01~20重量%的光聚合引发剂(F)。
4、一种具有权利要求1~7中任何一项所述紫外线固化性粘合剂组合物通过照射光线形成的固化物的物品。
5、权利要求4中所述的物品,是光盘。
6、权利要求5中所述的物品,其中所说的光盘是DVD。
7、权利要求6中所述的物品,其中所说的DVD是单面读取的二层式DVD。
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP1996/001134 WO1996034065A1 (fr) | 1995-04-28 | 1996-04-25 | Composition adhesive durcissable aux ultraviolets |
| WOPCT/JP96/01134 | 1996-04-25 | ||
| JP179870/1996 | 1996-06-21 | ||
| JP179870/96 | 1996-06-21 | ||
| JP17987096 | 1996-06-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1195364A CN1195364A (zh) | 1998-10-07 |
| CN1132889C true CN1132889C (zh) | 2003-12-31 |
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|---|---|---|---|
| CN97190701A Expired - Fee Related CN1132889C (zh) | 1996-04-25 | 1997-04-24 | 紫外线固化性粘合剂组合物及其物品 |
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| Country | Link |
|---|---|
| EP (1) | EP0835917B1 (zh) |
| KR (1) | KR100491544B1 (zh) |
| CN (1) | CN1132889C (zh) |
| DE (1) | DE69736582T2 (zh) |
| ES (1) | ES2267139T3 (zh) |
| WO (1) | WO1997040115A1 (zh) |
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- 1997-04-24 WO PCT/JP1997/001445 patent/WO1997040115A1/ja active IP Right Grant
- 1997-04-24 KR KR1019970709718A patent/KR100491544B1/ko not_active Expired - Fee Related
- 1997-04-24 ES ES97919689T patent/ES2267139T3/es not_active Expired - Lifetime
- 1997-04-24 EP EP97919689A patent/EP0835917B1/en not_active Expired - Lifetime
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Also Published As
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|---|---|
| ES2267139T3 (es) | 2007-03-01 |
| EP0835917A4 (en) | 1998-06-10 |
| CN1195364A (zh) | 1998-10-07 |
| KR100491544B1 (ko) | 2006-01-12 |
| DE69736582D1 (de) | 2006-10-12 |
| KR19990028402A (ko) | 1999-04-15 |
| EP0835917A1 (en) | 1998-04-15 |
| WO1997040115A1 (fr) | 1997-10-30 |
| EP0835917B1 (en) | 2006-08-30 |
| DE69736582T2 (de) | 2006-12-28 |
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