CN114129544A - 经皮给药用紫外线固化型水凝胶树脂、水凝胶以及包含其的泥敷剂 - Google Patents
经皮给药用紫外线固化型水凝胶树脂、水凝胶以及包含其的泥敷剂 Download PDFInfo
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- CN114129544A CN114129544A CN202111479466.0A CN202111479466A CN114129544A CN 114129544 A CN114129544 A CN 114129544A CN 202111479466 A CN202111479466 A CN 202111479466A CN 114129544 A CN114129544 A CN 114129544A
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- hydrogel
- ultraviolet
- poultice
- resin
- glycol
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Abstract
本发明涉及经皮给药用紫外线固化型水凝胶树脂、其水凝胶以及利用其的泥敷剂,更具体地涉及如下水凝胶树脂、对其进行紫外线固化的水凝胶以及包含其的泥敷剂,上述水凝胶使适用于泥敷剂的药物层的水凝胶的水分含量增多,可通过缓解皮肤刺激、调节交联度来调节粘结性,具有可调节药物释放性及经皮吸收性的最佳组成以及组成比。
Description
本申请是申请号为201780011252.6、申请日为2017年02月01日、发明名称为“经皮给药用紫外线固化型水凝胶树脂、水凝胶以及包含其的泥敷剂”的专利申请的分案申请。
技术领域
本发明涉及利用紫外线制备的经皮给药用水凝胶树脂、对其进行紫外线固化的水凝胶、导入其的泥敷剂,具体地涉及如下水凝胶及包含其的泥敷剂,上述水凝胶含有大量水分而可缓解皮肤刺激,易于调节水凝胶的交联度,具有最佳的药物释放性以及经皮吸收性,具有相当于口服给药时的效果,不仅维持优秀的粘结力和弹性,而且易于调制,交联后无需单独的熟成过程或冷却过程,即可直接剪切并包装后出厂,从而易于制备。
背景技术
通过金属配离子结合制备的聚丙烯酸是生物相容性及对人体的粘结力突出的材料,在美国专利4320040号(1982)公开了将丙烯酸或甲基丙烯酸与聚乙烯醇一同使用来制备水凝胶的例。美国专利5223569号(1993)还公开了同时使用丙烯酸和淀粉(Starch)来制备水凝胶的例。尤其,作为用于提高利用聚丙烯酸的水凝胶对于人体中发生的汗等的耐水性的方法,关于使聚丙烯酸交联的水凝胶,美国专利4200561号(1980)公开了使用胶凝剂与丙烯酸、乙基丙烯酸、经酯化的丙烯酸、乙酸乙烯酯、乙烯甲酸盐、丙酸乙烯酯的共聚物混合物来制备水凝胶的方法。并且,美国专利3937680号(1976)公开了使用乙二醇而甲基丙烯酸酯、甲基丙烯酸、2-羟基乙基甲基丙烯酸酯作为交联剂来使含水率维持高的水平的方法。
借助金属配离子结合来进行交联的聚丙烯酸泥敷剂的用于金属配离子结合的交联时间过于长而难以直接出厂为产品,作为合成高分子的聚乙烯醇水溶液可由甲醛,戊二醛等进行交联,可重复进行冷冻和解冻来形成凝胶。然后,基于醛类的交联存在因未被完全去除而残留的醛的毒性问题,重复进行冷冻和解冻来形成的凝胶存在强度不高的问题,重复进行冷冻和解冻而所需的长时间的工序存在产品成本上升的问题。
为了使用聚乙烯吡咯烷酮来以化学交联方法制备水凝胶,将聚乙烯吡咯烷酮溶解于蒸馏水后,将乙二醇二甲基丙烯酸酯、丙二醇二甲基丙烯酸酯、四乙二醇二甲基丙烯酸酯或三甲氧基丙烷三丙烯酸酯等的多官能性单体与化学引发剂一同添加并加热。然而,化学热交联方法存在反应结束后还存在未反应引发剂或交联剂的问题。
因此,需要可缩短基于交联剂的交联时间、不使用有毒性的溶剂、不存在未反应引发剂或交联剂的制备技术。
通常商业化并销售中的现有水凝胶的情况下,主要使用金属配离子交联结合,但这种情况下需要一周到三周左右的长时间才能进行完全的交联,因此难以调节粘结力和凝胶强度。并且,pH为7以上的条件下存在无法顺利进行交联的问题,因如上所述的各种问题,难以向水凝胶添加多种药物。
发明内容
技术问题
本发明提供如下的水凝胶以及利用该水凝胶的泥敷剂,上述水凝胶为了解决水凝胶的制备时间过长的问题,通过紫外线固化来使水凝胶的固化时间大幅缩短来大幅提高生产性,并且具有最佳的组成及组成比来使水凝胶内含有的药物的皮肤吸收及传递优秀且可提高与皮肤的粘结力。
解决问题的手段
为了解决上述问题,本发明提供经皮给药用紫外线固化型水凝胶树脂,包含亲水性高分子、有效成分、湿润剂、溶剂、经皮透过促进剂、紫外线引发剂以及紫外线交联剂。
作为本发明的优选的一实施例,本发明的水凝胶树脂可包含5重量百分比~60重量百分比的亲水性高分子、0.1重量百分比~15重量百分比的有效成分、0.6重量百分比~80重量百分比的湿润剂、13.5重量百分比~90重量百分比的溶剂、0.5重量百分比~25重量百分比的经皮透过促进剂、0.01重量百分比~2.0重量百分比的紫外线引发剂以及0.01重量百分比~2.0重量百分比的紫外线交联剂。
作为本发明的优选的一实施例,本发明的水凝胶树脂还可包含pH调节剂。
作为本发明的优选的一实施例,本发明的水凝胶树脂的组成中的上述亲水性高分子可包含选自聚乙烯醇、聚乙烯吡咯烷酮、聚乙烯吡咯烷酮/乙酸乙烯酯共聚物、乙烯醚/马来酸酐共聚物、异丁烯/马来酸酐共聚物、乙烯基甲醚/马来酸酐共聚物、甲基丙烯酸/丙烯酸丁酯共聚物、藻酸盐、甲基丙烯酸羟乙酯、羟乙基纤维素、羟丙基纤维素、羟丙基甲基纤维素、乙基纤维素、甲基纤维素、羧甲基纤维素钠、羧基乙烯共聚物、聚氧化乙烯、聚乙二醇、聚丙烯酰胺、聚甲基丙烯酸羟乙酯、聚二氧戊环、聚丙烯酸、聚丙烯酸钠、聚乙烯丙烯酸酯、聚丙烯酸酯以及聚氯乙烯的一种以上。
作为本发明的优选的一实施例,本发明的水凝胶树脂的组成中的上述有效成分可包含选自利多卡因、利多卡因盐酸盐、洛索洛芬、洛索洛芬盐、酮洛芬、氟比洛芬、双氯芬酸、双氯芬酸盐、消炎痛、吡罗昔康、美洛昔康、萘普生、布洛芬、联苯乙酸、薄荷醇、水杨酸乙二醇、水杨酸甲酯、辣椒提取物、壬酸香草酰胺、乙烯基丁醚、积雪草、夫西地酸、夫西地酸盐、利凡诺、泰国野葛根、肝素、肝素盐以及尿囊素的一种以上。
作为本发明的优选的一实施例,本发明的水凝胶树脂的组成中的湿润剂可包含选自甘油、1,3-丁二醇、丙二醇、聚丙二醇、山梨醇、甘露醇、乙二醇、二乙二醇、聚乙二醇以及透明质酸的一种以上。
作为本发明的优选的一实施例,本发明的水凝胶树脂的组成中的上述经皮透过促进剂可包含选自丙二醇、二丙二醇、聚乙二醇、聚氧乙烯油酸酯、聚甘油双异硬脂酸酯、甘油油酸酯、聚氧乙烯山梨聚糖、N-甲基-2-吡咯烷酮、N-辛酰基-2-吡咯烷酮、N-十二烷基-2-吡咯烷酮、十二烷基吡咯烷酮、十二烷醇、甘油十二烷醇、油醇、肉豆蔻酸异丙酯、山梨聚糖油酸酯、丙烯单十二酸酯、丙烯油酸酯、油酰基聚乙二醇甘油酯、油酸、十二烷酰基聚乙二醇甘油酯、亚油酸聚乙二醇甘油酯、丙二醇辛酸盐、丙二醇癸酸酯、山梨聚糖单硬脂酸油酸酯、甘油单十二酸酯、甘油油酸酯、丙二醇单十二酸酯、丙二醇单辛酸盐、山梨聚糖单十二酸酯、十二烷基乳酸酯、辛酸甘油三酯、癸酸甘油三酯、玉米油PEG-8酯、玉米油PEG-6酯以及三乙酸甘油酯的一种以上。
作为本发明的优选的一实施例,本发明的水凝胶树脂的组成中的上述紫外线引发剂可包含选自酮类紫外线引发剂、噻吨酮类紫外线引发剂、苯甲酮类紫外线引发剂、香豆素类紫外线引发剂、噻唑啉类紫外线引发剂、绕丹宁类紫外线引发剂以及其他紫外线引发剂的一种以上。
作为本发明的优选的一实施例,上述酮类紫外线引发剂可包含1-羟基-环己基-苯基-酮、2-羟基-2-甲基-1-苯基-1-丙酮、2-羟基-1-[4-(2-羟基乙氧基)苯基]-2-甲基-1-丙酮、2-苄基-2-(二甲氨基)-1-[4-(4-吗啉基)苯基]-1-丁酮、2-甲基-1-[4-(甲硫基)苯基]-2-(4-吗啉基)-1-丙酮中的一种以上。
作为本发明的优选的一实施例,上述噻吨酮类紫外线引发剂包含噻吨酮、2-异丙基噻吨酮、2-氯噻吨酮,1-氯-4-丙氧基噻吨酮、2-十二烷基噻吨酮、2,4-二乙基噻吨酮、2,4-二甲硫基占吨酮、1-甲氧基-羰基噻吨酮、2-乙氧基羰基噻吨酮、3-(2-甲氧基乙氧基羰基)-噻吨酮、4-丁氧基羰基噻吨酮、3-丁氧基羰基-7-甲硫基占吨酮、1-氰基-3-氯噻吨酮、1-乙氧基羰基-3-氯噻吨酮、1-乙氧基羰基-3-乙氧基噻吨酮、1-乙氧基羰基-3-氨基噻吨酮、1-乙氧基羰基-3-苯基磺酰基噻吨酮、3,4-二[2-(2-甲氧基乙氧基)乙氧基羰基]-噻吨酮、1,3-二甲基-3-羟基-9H-噻吨酮-9酮2-乙基己基酯、1-乙氧基羰基-3-(1-甲基-1-吗啉基乙基)-噻吨酮、2-甲基-6-二甲氧基甲基-噻吨酮、2-甲基-6-(1,1-二甲氧基苄基)-噻吨酮、2-吗啉基甲硫基占吨酮、2-甲基-6-吗啉基甲硫基占吨酮、N-芳基噻吨酮-3,4-二羧酰胺基、1-苯氧基噻吨酮、6-乙氧基羰基-2-甲氧基噻吨酮、6-乙氧基羰基-2-甲硫基占吨酮、噻吨酮-2-羧酸聚乙二醇酯、2-羟基-3-(3,4-二甲基-9-氧-9H-噻吨酮-2-2-一氧)-N,N,N-三甲基-1-丙烷铵的氯化物(Propanaminium chloride)中的一种以上。
作为本发明的优选的一实施例,上述苯甲酮类紫外线引发剂可包含苯甲酮、4-苯基苯甲酮、4-甲氧基苯甲酮、4,4'-二甲基苯甲酮、4,4'-二氯苯甲酮、4,4'-双(二甲氨基)-苯甲酮、4,4'-双(二乙基氨基)苯甲酮、4,4'-双(甲基乙基氨基)苯甲酮、4,4'-双(p-异丙基苯氧基)苯甲酮、3,3'-二甲基-4-甲氧基苯甲酮、甲基-2-苯酰基苯甲酸盐、4-(2-羟基乙硫基)-苯甲酮、4-(4-甲苯基硫代)苯甲酮、1-[4-(4-苯酰基-苯基磺酰基)-苯基]-2-甲基-2(甲苯-4-磺酰基)-丙烷-1酮、4-苯酰基-N,N,N-三甲基苄基丙烷铵的氯化物(trimethyldimethyl benzylammonium chloride)、2-羟基-3-(4-苯酰基-苯氧基)-N,N,N-三甲基-1-丙烷铵的氯化物一水化物、4-(13-丙烯酰-1,4,7,10,13-五氧十三烷基)-苯甲酮、4-苯酰基-N,N-二甲基-N-[2-(1-氧-2-丙醛基)氧]乙基-苄基丙烷铵的氯化物中的一种以上。
作为本发明的优选的一实施例,上述香豆素类紫外线引发剂可包含香豆素1、香豆素2、香豆素6、香豆素7、香豆素30、香豆素102、香豆素106、香豆素138、香豆素152、香豆素153、香豆素307、香豆素314、香豆素314T、香豆素334、香豆素337、香豆素500、3-苯酰基香豆素、3-苯酰基-7-甲氧基香豆素、3-苯酰基-5,7-二甲氧基香豆素、3-苯酰基-5,7-二丙氧基香豆素、3-苯酰基-6,8-二氯香豆素、3-苯酰基-6-氯-香豆素、3,3'-羰基-双[5,7-二(丙氧基)-香豆素]、3,3'-羰基-双(7-甲氧基香豆素)、3,3'-羰基-双(7-二乙基氨基-香豆素)、3-异丁酰香豆素、3-苯酰基-5,7-二甲氧基-香豆素、3-苯酰基-5,7-二乙氧基-香豆素、3-苯酰基-5,7-二丁氧基香豆素、3-苯酰基-5,7-二(甲氧基乙氧基)-香豆素、3-苯酰基-5,7-二(芳基氧)香豆素、3-苯酰基-7-二甲氨基香豆素、3-苯酰基-7-二乙基氨基香豆素、3-异丁酰-7-二甲氨基香豆素、3-苯酰基-7-二乙基氨基香豆素、3-异丁酰-7-二甲氨基香豆素、5,7-二甲氧基-3-(1-萘酰)-香豆素、5,7-二乙氧基-3-(1-萘酰)-香豆素、3-苯酰基苯并[f]香豆素、7-二乙基氨基-3-噻吩甲酰香豆素、3-(4-氰基苯酰基)-5,7-二甲氧基香豆素、3-(4-氰基苯酰基)-5,7-二丙氧基香豆素、7-二甲氨基-3-苯基香豆素、7-二乙基氨基-3-苯基香豆素中的一种以上。
作为本发明的优选的一实施例,上述噻唑啉类紫外线引发剂可包含作为3-(芳酰基亚甲基)-噻唑啉类的3-甲基-2-苯酰基亚甲基-β-萘并噻唑啉、3-甲基-2-苯酰基亚甲基-苯并噻唑啉、3-乙基-2-丙酰基亚甲基-β-萘酚噻唑啉中的一种以上。
作为本发明的优选的一实施例,上述绕丹宁类紫外线引发剂可包含4-二甲氨基苯亚甲基绕丹宁、4-二乙基氨基苯亚甲基绕丹宁、3-乙基-5-(3-辛基-2-苯并噻唑啉)-绕丹宁中的一种以上。
作为本发明的优选的一实施例,上述其他紫外线引发剂可包含选自苯基苯乙酮、羟基二甲基苯乙酮、4,4'-双(二甲氨基)苄基、甲基苯酰基甲酸盐、二苯基(2,4,6-三甲基苯酰基)-氧化膦、苯基双(2,4,6-三甲基苯酰基)、氧-苯基-乙酸-2-[2-氧-2-苯基-乙酰氧基-乙氧基]-乙基酯、氧-苯基-乙酸-2-[2-羟基-乙氧基]-乙基酯、4-环戊二烯-1-基)双[2,6-二氟-3-(1-H-吡咯-1-基)苯基]钛、2-乙酰基萘,2-萘甲醛、碘盐、丹酰酸衍生物、9.10-蒽醌、蒽、嵌二萘、氨基嵌二萘、二萘嵌苯、菲、菲醌、9-芴酮、二苯并环庚酮、姜黄色素、占吨酮、硫代米氏酮、α-(4-二甲氨基苯亚甲基)酮、苯基硫醇酞亚胺、N-甲基-3,5-二(乙硫基)-酞亚胺、N-甲基-3,5-二(乙硫基)-酞亚胺、吩噻嗪、甲基吩噻嗪、胺、乙基-p-二甲氨基安息香酸盐、2-(二甲氨基)乙基安息香酸盐、2-乙基己基-p-二甲氨基安息香酸盐、辛基-对-N,N-二甲氨基安息香酸盐、N-(2-羟基乙基)-N-甲基-对甲苯胺、丁氧基乙基4-二甲氨基安息香酸盐、4-二甲氨基苯乙酮、三乙醇胺、甲基二羟乙基胺、二甲氨基乙醇、2-(二甲氨基)乙基安息香酸盐、聚(丙二醇)-4-(二甲氨基)安息香酸盐以及米氏酮的一种以上,上述α-(4-二甲氨基苯亚甲基)酮包含2,5-双(4-二乙基氨基苯亚甲基)环戊酮、2-(4-二甲氨基-苯亚甲基)-二氢化茚-1酮、3-(4-二甲氨基-苯基)-1-二氢化茚-5-基-对羟苯丙酮,上述胺包含N-苯基甘氨酸、三乙醇胺、N-甲基二羟乙基胺。
作为本发明的优选的一实施例,本发明的水凝胶树脂的组成中的上述紫外线交联剂可包含选自苄基甲基丙烯酸盐、十二烷基甲基丙烯酸盐、异癸甲基丙烯酸盐、苯氧基甲基丙烯酸盐、2-羟基乙基甲基丙烯酸盐、甲基丙烯酸四氢糠基酯、十六烷基(C16)甲基丙烯酸盐、甲基丙烯酸十八烷基酯、甲氧基聚乙二醇500甲基丙烯酸盐、甲氧基聚乙二醇600甲基丙烯酸盐、甲氧基聚乙二醇1000甲基丙烯酸盐、1,6-己二醇二甲基丙烯酸酯、丁二烯二甲基丙烯酸酯、二甲基丙烯酸新戊二醇酯、乙二醇二甲基丙烯酸酯、二乙二醇二甲基丙烯酸酯、三乙二醇二甲基丙烯酸酯、四乙二醇二甲基丙烯酸酯、双酚A(环氧)(EO)4二甲基丙烯酸酯、双酚A(环氧)3二甲基丙烯酸酯、双酚A(环氧)10二甲基丙烯酸酯、双酚A(环氧)30二甲基丙烯酸酯、1,3-丁二醇二甲基丙烯酸酯、聚乙二醇400二甲基丙烯酸酯、聚乙二醇200二甲基丙烯酸酯、聚丙二醇1000(环氧)15二甲基丙烯酸酯、聚丙二醇1000(环氧)3二甲基丙烯酸氢糠酯、三羟甲基丙烷三甲基丙烯酸盐、苄基丙烯酸酯、十二烷基丙烯酸酯、异癸丙烯酸酯、苯酚(环氧)丙烯酸酯、苯酚(环氧)2丙烯酸酯、苯酚(环氧)4丙烯酸酯、苯酚(环氧)6丙烯酸酯、四氢糠基丙烯酸酯、壬基苯酚(环氧)4丙烯酸酯、壬基苯酚(环氧)8丙烯酸酯、壬基苯酚(环氧)2丙烯酸酯、乙氧基乙氧基乙基丙烯酸酯、十八酰基丙烯酸酯、1,6-己二醇二丙烯酸酯、1,6-己二醇(环氧)二丙烯酸酯、丁二醇二丙烯酸酯、羟基三甲基乙酸新戊二醇二丙烯酸酯、三丙二醇二丙烯酸酯、二丙二醇二丙烯酸酯、双酚A(环氧)4二丙烯酸酯、双酚A(环氧)3二丙烯酸酯、三环癸烷二甲醇二丙烯酸酯、四乙二醇二丙烯酸酯、聚乙二醇400二丙烯酸酯、聚乙二醇200二丙烯酸酯、聚乙二醇300二丙烯酸酯、聚乙二醇600二丙烯酸酯、聚丙二醇400二丙烯酸酯、聚丙二醇750二丙烯酸酯、双酚A(环氧)10二丙烯酸酯、双酚A(环氧)30二丙烯酸酯、三(2-羟基乙基)异氰脲酸酯二丙烯酸酯、三羟甲基丙烷三丙烯酸酯、三羟甲基丙烷(环氧)3三丙烯酸酯、三羟甲基丙烷(环氧)6三丙烯酸酯、三羟甲基丙烷(环氧)9三丙烯酸酯、三羟甲基丙烷(环氧)15三丙烯酸酯、甘油丙氧基化三丙烯酸酯、季戊四醇三丙烯酸酯、三羟甲基丙烷(环氧丙烷)(PO)3三丙烯酸酯、三(2-羟基乙基)异氰脲酸酯三丙烯酸酯、季戊四醇N-环氧四丙烯酸酯、季戊四醇四丙烯酸酯、二季戊四醇五丙烯酸酯、二季戊四醇六丙烯酸酯、己内酯丙烯酸酯、O-苯基苯酚环氧丙烯酸酯、亚甲基双丙烯酰胺中的一种以上。
作为本发明的优选的一实施例,本发明的水凝胶树脂的组成中的上述pH调节剂可包含选自柠檬酸、乙酸、苹果酸、琥珀酸、酒石酸、乳酸、三乙醇胺、二异丙醇胺以及二羟乙基胺的一种以上。
作为本发明的优选的一实施例,本发明的水凝胶树脂的pH可以为3~9。
本发明的再一目的在于提供对上述水凝胶树脂进行紫外线固化而成的固化物,即水凝胶。
作为本发明的优选的一实施例,对本发明的水凝胶测定剥离强度(peelstrength)时,粘结力可以为50gf~120gf。
本发明的另一目的在于提供泥敷剂,其包括:药物层,包含如上所述的多种形态的经皮给药用紫外线固化型水凝胶;药物支撑层。
作为本发明的优选的一实施例,本发明的泥敷剂中,上述药物支撑层可包含选自聚氨酯膜、多孔性膜、穿孔膜、织物、无纺布以及泡沫(foam)的一种以上。
作为本发明的优选的一实施例,上述药物层的平均厚度可以为20~2000μm,上述药物支撑层的平均厚度可以为7~500μm。
作为本发明的优选的一实施例,本发明的泥敷剂还可包括剥离层,剥离层、药物层以及药物支撑层可依次层叠。
作为本发明的优选的一实施例,上述剥离层可包含涂敷有硅树脂或氟树脂的高分子膜,上述高分子膜可包含选自聚酯、聚氯乙烯、聚偏氯乙烯、聚对苯二甲酸乙二醇酯以及它们的共聚物的一种以上的高分子化合物。
作为本发明的优选的一实施例,上述剥离层的平均厚度可以为15μm~500μm。
作为本发明的优选的一实施例,本发明的泥敷剂可以为消炎、镇痛用泥敷剂。
本发明的又一目的在于提供泥敷剂的制备方法,进行包括如下步骤的工序:
第一步骤,对亲水性高分子、有效成分、湿润剂、溶剂、经皮透过促进剂、紫外线引发剂以及紫外线交联剂进行混合及搅拌来制备水凝胶树脂;
第二步骤,将上述水凝胶树脂涂敷于剥离膜;
第三步骤,在涂敷的水凝胶树脂层叠支撑体;
第四步骤,沿着支撑体方向,以2000mW/cm2~8000mW/cm2的强度照射3分钟~10分钟的紫外线来使水凝胶树脂固化。
发明的效果
本发明的经皮给药用紫外线固化型水凝胶通过无毒性的溶剂制备而成,可含有大量水分而缓解皮肤刺激,易于调节交联度,易于调节粘结力和弹性,调节水凝胶的交联度来可调节药物释放性及经皮吸收性,皮肤透过量及皮肤透过速度优秀。并且,利用本发明的水凝胶的泥敷剂易于制备,与基于金属配离子结合水凝胶成分的泥敷剂相比,长期保管也易于确保安全性,水凝胶交联后无需单独的熟成过程或冷却过程,即可直接剪切并包装后出厂,经济性、商业性优秀。
具体实施方式
以下,对本发明进行详细说明。
本发明的泥敷剂的制备方法包括:第一步骤,制备水凝胶树脂;第二步骤,将上述水凝胶树脂涂敷于剥离膜;第三步骤,在涂敷的水凝胶树脂层叠支撑体;第四步骤,沿着支撑体方向照射紫外线来使水凝胶树脂固化。
在第一步骤中,可在常温(15℃~35℃)下,以150rpm~1650rpm的速度对混合亲水性高分子、有效成分、湿润剂、溶剂、经皮透过促进剂、紫外线引发剂以及紫外线交联剂的混合物进行5小时~12小时的搅拌及交联反应,使组合物充分溶解于溶剂来制备上述水凝胶树脂。
第一步骤的水凝胶树脂的成分中上述亲水性高分子起到对水凝胶赋予粘弹性并保持水分含量的作用,相对于水凝胶树脂的总重量,可包含5重量百分比~60重量百分比,优选地包含5重量百分比~40重量百分比,更优选地包含8重量百分比~35重量百分比,此时,若亲水性高分子的含量小于5重量百分比,则可存在水凝胶无法维持水分含量及粘弹性且成分难以透过皮肤的问题,若超过60重量百分比,则可存在粘度过高而在第二步骤中难以进行涂敷且交联性大幅下降的问题。
并且,上述亲水性高分子可使用选自聚乙烯醇、聚乙烯吡咯烷酮、聚乙烯吡咯烷酮/乙酸乙烯酯共聚物、乙烯醚/马来酸酐共聚物、异丁烯/马来酸酐共聚物、乙烯基甲醚/马来酸酐共聚物、甲基丙烯酸/丙烯酸丁酯共聚物、藻酸盐、甲基丙烯酸羟乙酯、羟乙基纤维素、羟丙基纤维素、羟丙基甲基纤维素、乙基纤维素、甲基纤维素、羧甲基纤维素钠、羧基乙烯共聚物、聚氧化乙烯、聚乙二醇、聚丙烯酰胺、聚甲基丙烯酸羟乙酯、聚二氧戊环、聚丙烯酸、聚丙烯酸钠、聚乙烯丙烯酸酯、聚丙烯酸酯以及聚氯乙烯的一种或两种以上,优选地使用选自聚乙烯吡咯烷酮、聚乙烯吡咯烷酮/乙酸乙烯酯共聚物、羟丙基纤维素、羟丙基甲基纤维素、甲基丙烯酸羟乙酯、聚丙烯酸钠、聚丙烯酸、羧甲基纤维素钠以及聚丙烯酰胺的一种或两种以上,更优选地,上述亲水性高分子可相对于100重量份的聚乙烯吡咯烷酮,可混合使用5重量份~100重量份,优选地使用10重量份~50重量份的选自羟丙基纤维素、聚丙烯酸钠、聚丙烯酸、羧甲基纤维素钠以及聚丙烯酰胺的一种以上。作为具体一例,可混合使用上述亲水性聚乙烯吡咯烷酮和聚丙烯酸钠、聚乙烯吡咯烷酮和聚丙烯酸、聚乙烯吡咯烷酮和聚丙烯酰胺、聚乙烯吡咯烷酮和聚乙烯醇、聚乙烯吡咯烷酮和羧甲基纤维素钠、聚乙烯吡咯烷酮和羟乙基纤维素、聚乙烯吡咯烷酮和羟丙基纤维素、聚乙烯吡咯烷酮和甲基丙烯酸羟乙酯。
并且,上述亲水性高分子可包含由公知的交联剂或聚合物处理的。
第一步骤的水凝胶树脂的成分中上述有效成分根据水凝胶的用途,可使用根据该用途的本领域常用的有效成分,优选地,有效成分可混合使用选自利多卡因、利多卡因盐酸盐、洛索洛芬、洛索洛芬盐、酮洛芬、氟比洛芬、双氯芬酸、双氯芬酸盐、消炎痛、吡罗昔康、美洛昔康、萘普生、布洛芬、联苯乙酸、薄荷醇、水杨酸乙二醇、水杨酸甲酯、辣椒提取物、壬酸香草酰胺、乙烯基丁醚、积雪草、夫西地酸、夫西地酸盐、利凡诺、泰国野葛根、肝素、肝素盐以及尿囊素中的一种或两种以上。作为具体一例,可混合使用具有消炎及镇痛效果的利多卡因、利多卡因盐酸盐、洛索洛芬、洛索洛芬盐等的一种或两种以上。
并且,水凝胶树脂相对于总重量,可包含0.1重量百分比~15重量百分比的上述有效成分,优选地包含1重量百分比~10重量百分比的上述有效成分,若有效成分的含量小于0.1重量百分比,则其使用量过少而难以得出根据有效成分的使用带来的效果,若超过15重量百分比,则过多的有效成分影响交联而影响水凝胶的制备。
第一步骤的水凝胶树脂的成分中上述湿润剂起到维持水凝胶的湿润状态、减轻皮肤刺激、维持持续性的冷却性以及提高水分的挥散性的作用,可使用本领域常用的常规湿润剂,优选地包含选自甘油、1,3-丁二醇、丙二醇、聚丙二醇、山梨醇、甘露醇、乙二醇、二乙二醇、聚乙二醇以及透明质酸的一种或两种以上,优选地包含选自甘油、山梨醇以及透明质酸的一种或两种以上,更优选地可以1:0.2~0.5的重量比混合使用甘油以及山梨醇。
并且,相对于水凝胶树脂的总重量,可包含0.6重量百分比~80重量百分比,优选地包含5重量百分比~50重量百分比,更优选地包含12重量百分比~40重量百分比的上述湿润剂,此时,若湿润剂的含量小于0.6重量百分比,则水凝胶无法维持充分的湿润状态,如超过80重量百分比,则可存在水凝胶无法固化的问题。
第一步骤的水凝胶树脂的成分中上述溶剂可使用净化水、蒸馏水等水,相对于水凝胶树脂的总重量,溶剂的含量为13.5重量百分比~90重量百分比,优选地为18重量百分比~70重量百分比,更优选地为30重量百分比~60重量百分比。
第一步骤的水凝胶树脂的成分中上述经皮透过促进剂用于促使有效成分的经皮吸收及药效的持续作用,相对于水凝胶树脂的总重量,其含量为0.5重量百分比~25重量百分比,优选地为0.5重量百分比~23重量百分比,更优选地为1~20重量百分比,此时,若经皮透过促进剂的含量小于0.5重量百分比,则可存在水凝胶内有效成分的经皮吸收力大幅下降的问题,若超过25重量百分比,则水凝胶的粘结力可发生问题。
上述经皮透过促进剂可混合使用选自丙二醇、二丙二醇、聚乙二醇、聚氧乙烯油酸酯、聚甘油双异硬脂酸酯、甘油油酸酯、聚氧乙烯山梨聚糖、N-甲基-2-吡咯烷酮、N-辛酰基-2-吡咯烷酮、N-十二烷基-2-吡咯烷酮、十二烷基吡咯烷酮、十二烷醇、甘油十二烷醇、油醇、肉豆蔻酸异丙酯、山梨聚糖油酸酯、丙烯单十二酸酯、丙烯油酸酯、油酰基聚乙二醇甘油酯、油酸、十二烷酰基聚乙二醇甘油酯、亚油酸聚乙二醇甘油酯、丙二醇辛酸盐、丙二醇癸酸酯、山梨聚糖单硬脂酸油酸酯、甘油单十二酸酯、甘油油酸酯、丙二醇单十二酸酯、丙二醇单辛酸盐、山梨聚糖单十二酸酯、十二烷基乳酸酯、辛酸甘油三酯、癸酸甘油三酯、玉米油PEG-8酯、玉米油PEG-6酯以及三乙酸甘油酯的一种或两种以上,优选地可混合使用选自丙二醇、二丙二醇、甘油油酸酯、聚氧乙烯山梨聚糖、N-甲基-2-吡咯烷酮、山梨聚糖油酸酯、肉豆蔻酸异丙酯、聚氧乙烯油酸酯、甘油油酸酯、丙二醇单辛酸盐以及聚甘油双异硬脂酸酯的一种或两种以上,更优选地以1:0.03~0.5的重量比混合使用丙二醇和选自山梨聚糖油酸酯、肉豆蔻酸异丙酯、聚氧乙烯油酸酯、甘油油酸酯、丙二醇单辛酸盐以及聚甘油双异硬脂酸酯的一种。并且、更优选地,有效成分为洛索洛芬钠及其盐的情况下,可混合使用选自丙二醇、甘油油酸酯、甘油油酸酯、聚氧乙烯山梨聚糖、N-甲基-2-吡咯烷酮以及月桂基吡咯烷酮的三种或四种以上。
第一步骤的水凝胶树脂的成分中上述紫外线引发剂为用于基于紫外线(UV)来形成水凝胶而使用的交联反应引发成分,可混合使用选自酮类紫外线引发剂、噻吨酮类紫外线引发剂、苯甲酮类紫外线引发剂、香豆素类紫外线引发剂、噻唑啉类紫外线引发剂、绕丹宁类紫外线引发剂以及其他紫外线引发剂的一种或两种以上。并且,相对于水凝胶树脂的总重量,其含量为0.01重量百分比~2.0重量百分比,优选地为0.025重量百分比~1.5重量百分比,更优选地为0.1重量百分比~1.0重量百分比,此时,若紫外线引发剂的含量小于0.01重量百分比,则可存在基于紫外线照射的固化时间过长而商业性下降且固化的水凝胶的粘弹性不足的问题,若紫外线引发剂的含量超过2重量百分比,则可存在固化速度过快而难以控制固化速度且粘结力下降的问题。
本发明中可使用的紫外线引发剂的具体种类如下:
上述酮类紫外线引发剂,作为α-羟基酮类可混合使用选自1-羟基-环己基-苯基-酮、2-羟基-2-甲基-1-苯基-1-丙酮、2-羟基-1-[4-(2-羟基乙氧基)苯基]-2-甲基-1-丙酮、作为α-氨基酮类的2-苄基-2-(二甲氨基)-1-[4-(4-吗啉基)苯基]-1-丁酮以及2-甲基-1-[4-(甲硫基)苯基]-2-(4-吗啉基)-1-丙酮的一种或两种以上。
上述噻吨酮类紫外线引发剂可混合使用选自噻吨酮、2-异丙基噻吨酮、2-氯噻吨酮、1-氯-4-丙氧基噻吨酮、2-十二烷基噻吨酮、2,4-二乙基噻吨酮、2,4-二甲硫基占吨酮、1-甲氧基-羰基噻吨酮、2-乙氧基羰基噻吨酮、3-(2-甲氧基乙氧基羰基)-噻吨酮、4-丁氧基羰基噻吨酮、3-丁氧基羰基-7-甲硫基占吨酮、1-氰基-3-氯噻吨酮、1-乙氧基羰基-3-氯噻吨酮、1-乙氧基羰基-3-乙氧基噻吨酮、1-乙氧基羰基-3-氨基噻吨酮、1-乙氧基羰基-3-苯基磺酰基噻吨酮、3,4-二[2-(2-甲氧基乙氧基)乙氧基羰基]-噻吨酮、1,3-二甲基-3-羟基-9H-噻吨酮-9酮2-乙基己基酯、1-乙氧基羰基-3-(1-甲基-1-吗啉基乙基)-噻吨酮、2-甲基-6-二甲氧基甲基-噻吨酮、2-甲基-6-(1,1-二甲氧基苄基)-噻吨酮、2-吗啉基甲硫基占吨酮、2-甲基-6-吗啉基甲硫基占吨酮、N-芳基噻吨酮-3,4-二羧酰胺基、1-苯氧基噻吨酮、6-乙氧基羰基-2-甲氧基噻吨酮、6-乙氧基羰基-2-甲硫基占吨酮、噻吨酮-2-羧酸聚乙二醇酯、2-羟基-3-(3,4-二甲基-9-氧-9H-噻吨酮-2-2-一氧)-N,N,N-三甲基-1-丙烷铵的氯化物中的一种以上。
上述苯甲酮类紫外线引发剂可混合使用选自苯甲酮、4-苯基苯甲酮、4-甲氧基苯甲酮、4,4'-二甲基苯甲酮、4,4'-二氯苯甲酮、4,4'-双(二甲氨基)-苯甲酮、4,4'-双(二乙基氨基)苯甲酮、4,4'-双(甲基乙基氨基)苯甲酮、4,4'-双(p-异丙基苯氧基)苯甲酮、3,3'-二甲基-4-甲氧基苯甲酮、甲基-2-苯酰基苯甲酸盐、4-(2-羟基乙硫基)-苯甲酮、4-(4-甲苯基硫代)苯甲酮、1-[4-(4-苯酰基-苯基磺酰基)-苯基]-2-甲基-2(甲苯-4-磺酰基)-丙烷-1酮、4-苯酰基-N,N,N-三甲基苄基丙烷铵的氯化物、2-羟基-3-(4-苯酰基-苯氧基)-N,N,N-三甲基-1-丙烷铵的氯化物一水化物、4-(13-丙烯酰-1,4,7,10,13-五氧十三烷基)-苯甲酮、4-苯酰基-N,N-二甲基-N-[2-(1-氧-2-丙醛基)氧]乙基-苄基丙烷铵的氯化物中的一种以上。
上述香豆素类紫外线引发剂可混合使用选自香豆素1、香豆素2、香豆素6、香豆素7、香豆素30、香豆素102、香豆素106、香豆素138、香豆素152、香豆素153、香豆素307、香豆素314、香豆素314T、香豆素334、香豆素337、香豆素500、3-苯酰基香豆素、3-苯酰基-7-甲氧基香豆素、3-苯酰基-5,7-二甲氧基香豆素、3-苯酰基-5,7-二丙氧基香豆素、3-苯酰基-6,8-二氯香豆素、3-苯酰基-6-氯-香豆素、3,3'-羰基-双[5,7-二(丙氧基)-香豆素]、3,3'-羰基-双(7-甲氧基香豆素)、3,3'-羰基-双(7-二乙基氨基-香豆素)、3-异丁酰香豆素、3-苯酰基-5,7-二甲氧基-香豆素、3-苯酰基-5,7-二乙氧基-香豆素、3-苯酰基-5,7-二丁氧基香豆素、3-苯酰基-5,7-二(甲氧基乙氧基)-香豆素、3-苯酰基-5,7-二(芳基氧)香豆素、3-苯酰基-7-二甲氨基香豆素、3-苯酰基-7-二乙基氨基香豆素、3-异丁酰-7-二甲氨基香豆素、3-苯酰基-7-二乙基氨基香豆素、3-异丁酰-7-二甲氨基香豆素、5,7-二甲氧基-3-(1-萘酰)-香豆素、5,7-二乙氧基-3-(1-萘酰)-香豆素、3-苯酰基苯并[f]香豆素、7-二乙基氨基-3-噻吩甲酰香豆素、3-(4-氰基苯酰基)-5,7-二甲氧基香豆素、3-(4-氰基苯酰基)-5,7-二丙氧基香豆素、7-二甲氨基-3-苯基香豆素、7-二乙基氨基-3-苯基香豆素中的一种以上。
上述噻唑啉类紫外线引发剂可混合使用选自3-(芳酰基亚甲基)-噻唑啉类、3-甲基-2-苯酰基亚甲基-β-萘并噻唑啉、3-甲基-2-苯酰基亚甲基-苯并噻唑啉、3-乙基-2-丙酰基亚甲基-β-萘酚噻唑啉中的一种以上。
上述绕丹宁类紫外线引发剂可混合使用选自4-二甲氨基苯亚甲基绕丹宁、4-二乙基氨基苯亚甲基绕丹宁、3-乙基-5-(3-辛基-2-苯并噻唑啉)-绕丹宁中的一种以上。
并且,上述其他紫外线引发剂可混合使用选自苯乙酮、3-甲氧基苯乙酮,4-苯基苯乙酮、α-二甲氧基-α-苯基苯乙酮、羟基二甲基苯乙酮、苄基、4,4'-双(二甲氨基)苄基、甲基苯酰基甲酸盐、二苯基(2,4,6-三甲基苯酰基)-氧化膦、苯基双(2,4,6-三甲基苯酰基)、氧-苯基-乙酸-2-[2-氧-2-苯基-乙酰氧基-乙氧基]-乙基酯、氧-苯基-乙酸-2-[2-羟基-乙氧基]-乙基酯、4-环戊二烯-1-基)双[2,6-二氟-3-(1-H-吡咯-1-基)苯基]钛、2-乙酰基萘、2-萘甲醛、碘盐、丹酰酸衍生物、9.10-蒽醌、蒽、嵌二萘、氨基嵌二萘、二萘嵌苯、菲、菲醌、9-芴酮、二苯并环庚酮、姜黄色素、占吨酮、硫代米氏酮、例如2,5-双(4-二乙基氨基苯亚甲基)环戊酮、2-(4-二甲氨基-苯亚甲基)-二氢化茚-1酮、3-(4-二甲氨基-苯基)-1-二氢化茚-5-基-对羟苯丙酮等α-(4-二甲氨基苯亚甲基)酮、3-苯基硫醇酞亚胺、N-甲基-3,5-二(乙硫基)-酞亚胺、N-甲基-3,5-二(乙硫基)-酞亚胺、吩噻嗪、甲基吩噻嗪、例如N-苯基甘氨酸、三乙醇胺、N-甲基二羟乙基胺等胺、乙基-p-二甲氨基安息香酸盐、2-(二甲氨基)乙基安息香酸盐、2-乙基己基-p-二甲氨基安息香酸盐、辛基-对-N,N-二甲氨基安息香酸盐、N-(2-羟基乙基)-N-甲基-对甲苯胺、丁氧基乙基4-二甲氨基安息香酸盐、4-二甲氨基苯乙酮、三乙醇胺、甲基二羟乙基胺、二甲氨基乙醇、2-(二甲氨基)乙基安息香酸盐、聚(丙二醇)-4-(二甲氨基)安息香酸盐以及米氏酮的一种或两种以上。
第一步骤的水凝胶树脂的成分中上述紫外线交联剂起到调节水凝胶的交联程度来调节水凝胶的粘结力和弹性的作用,相对于水凝胶树脂的总重量,其含量为0.01~2重量百分比,优选地为0.025重量百分比~2重量百分比,更优选地为0.025~1.5重量百分比,此时,若紫外线交联剂的含量小于0.01重量百分比,则可存在经紫外线固化的水凝胶的粘弹性过低的问题,若超过2重量百分比,则可存在粘结力反而下降的问题。
并且,上述紫外线交联剂可混合使用选自苄基甲基丙烯酸盐、十二烷基甲基丙烯酸盐、异癸甲基丙烯酸盐、苯氧基甲基丙烯酸盐、2-羟基乙基甲基丙烯酸盐、甲基丙烯酸四氢糠基酯、十六烷基(C16)甲基丙烯酸盐、甲基丙烯酸十八烷基酯、甲氧基聚乙二醇500甲基丙烯酸盐、甲氧基聚乙二醇600甲基丙烯酸盐、甲氧基聚乙二醇1000甲基丙烯酸盐、1,6-己二醇二甲基丙烯酸酯、丁二烯二甲基丙烯酸酯、二甲基丙烯酸新戊二醇酯、乙二醇二甲基丙烯酸酯、二乙二醇二甲基丙烯酸酯、三乙二醇二甲基丙烯酸酯、四乙二醇二甲基丙烯酸酯、双酚A(环氧)4二甲基丙烯酸酯、双酚A(环氧)3二甲基丙烯酸酯、双酚A(环氧)10二甲基丙烯酸酯、双酚A(环氧)30二甲基丙烯酸酯、1,3-丁二醇二甲基丙烯酸酯、聚乙二醇400二甲基丙烯酸酯、聚乙二醇200二甲基丙烯酸酯、聚丙二醇1000(环氧)15二甲基丙烯酸酯、聚丙二醇1000(环氧)3二甲基丙烯酸氢糠酯、三羟甲基丙烷三甲基丙烯酸盐、苄基丙烯酸酯、十二烷基丙烯酸酯、异癸丙烯酸酯、苯酚(环氧)丙烯酸酯、苯酚(环氧)2丙烯酸酯、苯酚(环氧)4丙烯酸酯、苯酚(环氧)6丙烯酸酯、四氢糠基丙烯酸酯、壬基苯酚(环氧)4丙烯酸酯、壬基苯酚(环氧)8丙烯酸酯、壬基苯酚(环氧)2丙烯酸酯、乙氧基乙氧基乙基丙烯酸酯、十八酰基丙烯酸酯、1,6-己二醇二丙烯酸酯、1,6-己二醇(环氧)二丙烯酸酯、丁二醇二丙烯酸酯、羟基三甲基乙酸新戊二醇二丙烯酸酯、三丙二醇二丙烯酸酯、二丙二醇二丙烯酸酯、双酚A(环氧)4二丙烯酸酯、双酚A(环氧)3二丙烯酸酯、三环癸烷二甲醇二丙烯酸酯、四乙二醇二丙烯酸酯、聚乙二醇400二丙烯酸酯、聚乙二醇200二丙烯酸酯、聚乙二醇300二丙烯酸酯、聚乙二醇600二丙烯酸酯、聚丙二醇400二丙烯酸酯、聚丙二醇750二丙烯酸酯、双酚A(环氧)10二丙烯酸酯、双酚A(环氧)30二丙烯酸酯、三(2-羟基乙基)异氰脲酸酯二丙烯酸酯、三羟甲基丙烷三丙烯酸酯、三羟甲基丙烷(环氧)3三丙烯酸酯、三羟甲基丙烷(环氧)6三丙烯酸酯、三羟甲基丙烷(环氧)9三丙烯酸酯、三羟甲基丙烷(环氧)15三丙烯酸酯、甘油丙氧基化三丙烯酸酯、季戊四醇三丙烯酸酯、三羟甲基丙烷(环氧丙烷)3三丙烯酸酯、三(2-羟基乙基)异氰脲酸酯三丙烯酸酯、季戊四醇N-环氧四丙烯酸酯、季戊四醇四丙烯酸酯、二季戊四醇五丙烯酸酯、二季戊四醇六丙烯酸酯、己内酯丙烯酸酯、O-苯基苯酚环氧丙烯酸酯、亚甲基双丙烯酰胺中的一种以上。优选地,可混合使用选自亚甲基双丙烯酰胺、2-羟基乙基甲基丙烯酸盐、乙二醇二甲基丙烯酸酯、1,3-丁二醇二甲基丙烯酸酯、聚乙二醇400二甲基丙烯酸酯、三丙二醇二丙烯酸酯以及四乙二醇二丙烯酸酯的一种或两种以上。
本发明的泥敷剂的制备方法中,上述第二步骤是在剥离膜涂敷(或涂覆)第一步骤中所制备的水凝胶树脂的工序,上述涂敷方法可利用本领域常用的常规涂敷方法。
并且,上述剥离膜用于在制备泥敷剂后,对皮肤使用之前分离去除而使泥敷剂的药物层附着于皮肤,考虑剥离容易性及制备容易性方面,剥离膜(剥离层)的平均厚度为15μm~500μm,优选地为20μm~300μm,考虑剥离容易性及制备容易性。
并且,上述剥离膜为涂敷有硅树脂或氟树脂的高分子膜,上述高分子膜可包含选自聚酯、聚氯乙烯、聚偏氯乙烯、聚对苯二甲酸乙二醇酯以及它们的共聚物的一种以上的高分子化合物。
本发明的泥敷剂的制备方法中,上述第三步骤为在涂敷于剥离膜的水凝胶树脂层叠支撑体的工序,上述支撑体起到泥敷剂的药物支撑层作用,上述支撑体可使用选自聚氨酯膜、多孔性膜、穿孔膜、织物、无纺布以及泡沫(foam)的一种以上。并且,支撑体的平均厚度为7μm~500μm,优选地为50μm~250μm,若平均厚度小于7μm,则过于薄而无法确保充分的物性,无法对固化的水凝胶(药物层)起到支撑体作用,若超过500μm,则过于厚而对于皮肤体的使用感下降,因此优选地使用具有上述范围内的厚度的支撑体。
本发明的泥敷剂的制备方法中,上述第四步骤使在层叠剥离膜、水凝胶树脂涂敷层以及支撑体后,沿着支撑体方向照射紫外线来使位于剥离膜和支撑体之间的水凝胶树脂固化来形成水凝胶(药物层)的工序。此时,上述紫外线的照射,可以2000mW/cm2~8000mW/cm2的强度照射3分钟~10分钟的紫外线,优选地以2500mW/cm2~5000mW/cm2的强度照射3分钟~10分钟的紫外线。
经紫外线固化而形成的上述水凝胶的平均厚度无特别限制,优选地为20μm~2000μm,更优选地为40μm~1000μm。
并且,上述经紫外线固化的水凝胶使用有效面积为0.64cm2且水溶相体积为5.2ml的弗朗茨扩散池(Franz diffusion cell)来在漏槽状态(sink condition)以及30℃~33℃下测定有效成分的皮肤透过时,累积皮肤透过量可以为40~160μg/cm2,优选地为45~150μg/cm2,更优选地为50~150μg/cm2,可具有优秀的皮肤透过性。
并且,上述经紫外线固化的水凝胶使用有效面积为0.64cm2且水溶相体积为5.2ml的弗朗茨扩散池(Franz diffusion cell)来在漏槽状态(sink condition)以及30℃~33℃下测定有效成分的皮肤透过时,累积皮肤透过速度可以为1.0~7.5μg/cm2/hr,优选地为1.0~7.0μg/cm2/hr,更优选地为1.0~6.8μg/cm2/hr,可具有优秀的皮肤透过速度。
并且,上述经紫外线固化的水凝胶,根据韩国药典创可贴项的粘结力试验测定剥离强度(peel strength)时,粘结力为40~150gf,优选地为50~150gf,更优选地为60~150gf,对于皮肤的粘结力优秀。
以如上所述的方法制备的本发明的泥敷剂包括:剥离层;药物层,包含经皮给药用紫外线固化型水凝胶以及药物支撑层,上述剥离层为上面说明的剥离膜,将泥敷剂适用于皮肤时去除剥离层来使用。并且,上述药物支撑层相当于上面说明的支撑体。
如上所述的本发明的泥敷剂根据药物层内有效成分而起具体用途不同,作为一例,作为有效成分使用利多卡因、利多卡因盐酸盐、洛索洛芬、洛索洛芬盐等,用作消炎、镇痛用泥敷剂。
以下,参照实施例对本发明进行更详细的说明,但本发明的包含范围并不局限于实施例中所例示的范围。
实施例
实施例1:水凝胶树脂的制备
对15重量百分比的聚乙烯吡咯烷酮、0.25重量百分比的氟比洛芬、28.75重量百分比的甘油、10重量百分比的山梨醇、15重量百分比的丙二醇、0.01重量百分比的1-羟基-环己基-苯基-酮、0.2重量百分比的亚甲基双丙烯酰胺以及30.79重量百分比的净化水进行混合、搅拌及完全溶解来制备水凝胶树脂。
实施例2~实施例62
利用与上述实施例1相同的方法制备水凝胶树脂,但以具备以下表1~表7所示的组成及组成比的方式制备水凝胶树脂。
表1
表2
表3
表4
表5
表6
表7
实施例63~实施例70
利用与上述实施例1相同的方法制备水凝胶树脂,但以具备以下表8所示的组成及组成比的方式制备水凝胶树脂。
表8
实施例71~实施例74
利用与上述实施例1相同的方法制备水凝胶树脂,但以具备以下表9所示的组成及组成比的方式制备水凝胶树脂。
表9
比较例1
制备了具有如表10所示的组成及组成比的水凝胶树脂。具有如表10所示的组成的水凝胶树脂的固化是通过金属配离子交联结合来执行的,固化时间为14天。
表10
比较例2~比较例10
利用与上述实施例1相同的方法制备水凝胶树脂,但以具备以下表11所示的组成及组成比的方式制备水凝胶树脂。
表11
制备例1:泥敷剂的制备
将上述实施例1中制备的水凝胶调制液涂覆于已涂覆有硅树脂的聚酯膜(厚度75μm)的一面,覆盖无纺布后照射4分钟的紫外线,使水凝胶树脂涂敷层固化,从而制备剥离层(剥离膜)、药物层(水凝胶)以及药物支撑层(无纺布)层叠及一体化的泥敷剂。由此制备平均厚度为500μm的水凝胶。
制备例2~74以及比较制备例2~10
利用与上述制备例1相同的方法制备泥敷剂,但分别使用实施例2~74的水凝胶树脂来代替上述实施例1的水凝胶树脂,由此分别制备泥敷剂来实施制备例2~74。
比较制备例1
利用与上述制备例1相同的方法制备泥敷剂,但为了金属配离子结合而在常温(25℃~27℃)放置14天来代替紫外线照射,由此进行固化。并且,根据水凝胶中是否粘着以及无纺布是否渗透来判断固化与否。
比较制备例2~8
利用与上述制备例1相同的方法制备泥敷剂,但分别使用比较例2~8的水凝胶树脂来代替上述实施例1的水凝胶树脂,由此分别制备泥敷剂来实施比较制备例2~8。
实验例1:粘结力测定
为了确认制备例及比较制备例中制备的泥敷剂的粘结性,执行了180°玻璃实验(180°peel test),表12及表13示出其结果。此时,关于粘结力的测定,去除了泥敷剂的剥离层后,以标准宽度12mm、长度250mm进行剪切,以宽度12mm、长度250mm附着于苯酚树脂材料的实验板,利用质量为850g的橡胶辊以300mm的速度通过1分钟,紧贴2次后,利用拉伸强度试验机(英斯特朗(Instron)5544)以300mm的速度拉拽,以约20mm的间隔测定了4次荷重。
表12
表13
区分 | 粘结力(gf) | 区分 | 粘结力(gf) |
比较制备例1 | 38 | 比较制备例5 | 32 |
比较制备例2 | × | 比较制备例6 | 64 |
比较制备例3 | 58 | 比较制备例7 | × |
比较制备例4 | 37 | 比较制备例8 | × |
导入使用小于5重量百分比的亲水性高分子的水凝胶树脂的比较例2、导入未使用紫外线引发剂以及紫外线交联剂的水凝胶树脂的比较制备例7及比较制备例8的情况下,凝胶形成效果不好或者不发生交联,而无法测定粘结力。
并且,使用超过15重量百分比的有效成分的比较制备例4的情况下,粘结力为37gf,小于50gf,判断为使用过多的有效成分影响交联而使水凝胶的粘结力减少。
并且,湿润剂的含量小于0.6重量百分比的比较制备例5的情况下,粘结力非常低,判断为经紫外线固化的水凝胶的粘结部分过于干燥而粘结力下降。
实验例2:累积皮肤透过量及皮肤透过速度的测定
对制备例1~制备例74以及比较制备例1、比较制备例3~6中制备的泥敷剂的药物层内有效成分的累积透过量及透过速度。
使用弗朗茨扩散池(Franz diffusion cell,有效面积:0.64cm2,水溶相体积:5.2ml)来在漏槽状态(sink condition)下进行了皮肤透过试验,从而获得累积皮肤透过量。具体地,首先将作为水溶相的pH为7.4的磷酸盐缓冲盐水(Phosphate bufferedsaline,PBS)填充于弗朗茨扩散池,维持32±0.5℃后,以圆形(面积:0.64cm2)剪切试样并附着于所准备的皮肤(human cadaver skin epidermis)中央部,将附着有试样的皮肤放置于弗朗茨扩散池的收容部的上部,覆盖Doner部并用夹具固定后,执行了透过试验。
上述皮肤为购买使用了试验用尸体皮肤表皮(human cadaver skin epidermis)层,购买后在-70℃进行保管,使用时在40℃进行解冻并使用。并且,使用HPLC来进行有效成分透过分析,在表14及表15示出24小时的测定结果。
表14
表15
观察上述表14可知,制备例1~74的泥敷剂的情况下,具有40μg/cm2以上的累积皮肤透过量,具有2.0μg/cm2/hr以上的皮肤透过速度。
然而,作为通过金属配离子结合来制备的以往泥敷剂的比较制备例1的情况下,具有低的累积皮肤透过量及皮肤透过速度。
并且,使用超过60重量百分比的亲水性高分子的比较制备例3的情况下,如表13所示,粘结力优秀,但与表14的制备例相比,具有低的累积皮肤透过量及皮肤透过速度,判断为水凝胶内形成交联结构的多量的亲水性高分子反而导致有效成分的皮肤传递力下降。
并且,有效成分的含量超过15重量百分比的比较制备例4及湿润剂的含量小于0.6重量百分比的比较制备例5的情况下,具有优秀的累积皮肤透过量及皮肤透过速度。然而,比较制备例4以及比较制备例5的情况下,如表13所示,存在粘结力不好的问题。
并且,未使用经皮透过促进剂的比较制备例6的情况下,虽然粘结力优秀,但累积皮肤透过量及皮肤透过速度非常低。
通过上述实施例及实验例可确认到,利用本发明的水凝胶树脂制备的泥敷剂的药物层(水凝胶)的固化速度快而经济性、商业性优秀,而且药物层的皮肤传递力及传递速度非常优秀,与皮肤的粘结力也非常优秀。利用这种本发明的泥敷剂可提供多种药学贴片。
本领域的普通技术人员可易于对本发明进行单纯的变形或变更,这种变形或变更均属于本发明的范围。
Claims (10)
1.一种泥敷剂用紫外线固化型水凝胶树脂,其特征在于,
包含5重量百分比~40重量百分比的亲水性高分子、0.1重量百分比~15重量百分比的有效成分、5重量百分比~50重量百分比的湿润剂、0.5重量百分比~25重量百分比的经皮透过促进剂、0.01重量百分比~2.0重量百分比的紫外线引发剂、0.01重量百分比~2.0重量百分比的紫外线交联剂以及余量的溶剂,
上述亲水性高分子包含选自聚乙烯醇、聚乙烯吡咯烷酮、聚乙烯吡咯烷酮/乙酸乙烯酯共聚物、乙烯醚/马来酸酐共聚物、异丁烯/马来酸酐共聚物、乙烯基甲醚/马来酸酐共聚物、甲基丙烯酸/丙烯酸丁酯共聚物、藻酸盐、甲基丙烯酸羟乙酯、羟乙基纤维素、羟丙基纤维素、羟丙基甲基纤维素、乙基纤维素、甲基纤维素、羧甲基纤维素钠、羧基乙烯共聚物、聚丙烯酰胺、聚甲基丙烯酸羟乙酯、聚二氧戊环、聚丙烯酸、聚丙烯酸钠、聚乙烯丙烯酸酯、聚丙烯酸酯以及聚氯乙烯的一种以上,
上述湿润剂包含选自甘油以及山梨醇的一种以上,
上述经皮透过促进剂包含选自丙二醇、聚氧乙烯油酸酯、聚甘油双异硬脂酸酯、甘油油酸酯、聚氧乙烯山梨聚糖、N-甲基-2-吡咯烷酮、十二烷基吡咯烷酮、肉豆蔻酸异丙酯、山梨聚糖油酸酯、甘油油酸酯、丙二醇单十二酸酯以及三乙酸甘油酯的一种以上,
上述紫外线引发剂包含选自1-羟基-环己基-苯基-酮、苯甲酮、甲基苯酰基甲酸盐、氧化膦、苯基双(2,4,6-三甲基苯酰基)以及2-羟基-2-甲基-1-苯基-1-丙酮的一种以上,
上述紫外线交联剂包含选自亚甲基双丙烯酰胺、2-羟基乙基甲基丙烯酸盐、乙二醇二甲基丙烯酸酯、1,3-丁二醇二甲基丙烯酸酯、聚乙二醇400二甲基丙烯酸酯、三丙二醇二丙烯酸酯、四乙二醇二丙烯酸酯以及乙二醇HEMA甲基丙烯酸酯的一种以上,
上述溶剂包括净化水。
2.根据权利要求1所述的泥敷剂用紫外线固化型水凝胶树脂,其特征在于,
上述有效成分包含选自利多卡因、利多卡因盐酸盐、洛索洛芬、洛索洛芬盐、酮洛芬、氟比洛芬、双氯芬酸、双氯芬酸盐、消炎痛、吡罗昔康、美洛昔康、萘普生、布洛芬、联苯乙酸、薄荷醇、水杨酸乙二醇、水杨酸甲酯、辣椒提取物、壬酸香草酰胺、乙烯基丁醚、积雪草、夫西地酸、夫西地酸盐、利凡诺、泰国野葛根、肝素、肝素盐以及尿囊素的一种以上。
3.根据权利要求1所述的泥敷剂用紫外线固化型水凝胶树脂,其特征在于,pH为3~9。
4.一种泥敷剂用紫外线固化型水凝胶,其特征在于,
权利要求1至3中任一项所述的水凝胶树脂的紫外线固化物,
根据韩国药典创可贴项的粘结力试验测定剥离强度时,粘结力为50~120gf,
使用有效面积为0.64cm2且水溶相体积为5.2ml的弗朗茨扩散池来在漏槽状态以及30℃~33℃下测定有效成分的皮肤透过量时,累积皮肤透过量为40~160μg/cm2,皮肤透过速度为2.0~7.5μg/cm2/hr。
5.一种泥敷剂的制备方法,其特征在于,包括:
第一步骤,制备权利要求1至3中任一项所述的水凝胶树脂;
第二步骤,将上述水凝胶树脂涂敷于剥离膜;
第三步骤,在涂敷的水凝胶树脂层叠支撑体;
第四步骤,沿着支撑体方向,以2000mW/cm2~8000mW/cm2的强度照射3分钟~10分钟的紫外线来使水凝胶树脂固化。
6.一种泥敷剂,其特征在于,包括:
药物层,包含根据权利要求4所述的泥敷剂用紫外线固化型水凝胶;
药物支撑层,包含选自聚氨酯膜、多孔性膜、穿孔膜、织物、无纺布以及泡沫的一种以上。
7.根据权利要求6所述的泥敷剂,其特征在于,上述药物层的平均厚度为20~2000μm,上述药物支撑层的平均厚度为7~500μm。
8.根据权利要求6所述的泥敷剂,其特征在于,
还包括剥离层,
剥离层、药物层以及药物支撑层依次层叠。
9.根据权利要求8所述的泥敷剂,其特征在于,
上述剥离层的平均厚度为15μm~500μm,
上述剥离层包含涂敷有硅树脂或氟树脂的高分子膜,
上述高分子膜包含选自聚酯、聚氯乙烯、聚偏氯乙烯、聚对苯二甲酸乙二醇酯以及它们的共聚物的一种以上的高分子化合物。
10.根据权利要求6所述的泥敷剂,其特征在于,上述泥敷剂为消炎、镇痛用泥敷剂。
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