CN1176655A - 含水卵磷脂为基的脱模助剂及其使用方法 - Google Patents
含水卵磷脂为基的脱模助剂及其使用方法 Download PDFInfo
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- CN1176655A CN1176655A CN96192243A CN96192243A CN1176655A CN 1176655 A CN1176655 A CN 1176655A CN 96192243 A CN96192243 A CN 96192243A CN 96192243 A CN96192243 A CN 96192243A CN 1176655 A CN1176655 A CN 1176655A
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- demolding aids
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- 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
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Abstract
本发明公开了一种水基脱模助剂组合物,它含有一种由醇、脂肪酸或油、卵磷脂、水浣性或水分散性表面活性剂和水组成的稳定乳液。也公开了制备该水基脱模助剂组合物的方法和使用本发明水基脱模助剂组合物赋予各种脱模表面和各种粘性物质以脱模特征的方法。
Description
本发明涉及含水的卵磷脂为基的脱模(脱离)助剂。更具体而言,本发明涉及乳液形式的含水卵磷脂为基的稳定脱模助剂。本发明进一步涉及使用这些稳定的含水脱模助剂赋予各种粘性物质和脱模表面以脱模(脱离)特征。
卵磷脂因其作为脱模剂的效率而为众所周知。卵磷脂可为许多不同工业的产品和方法提供脱模能力,例如纸浆和造纸工业、各种模制工业,如造纸、塑料,复合材料、水泥、粘土、织物、橡胶和陶瓷的模塑,以及食品工业。为讨论卵磷脂的许多特征和能力,参见“卵磷脂书籍,卵磷脂提南“CertralSoya,Chemurgy Division(1991年6月),该书的公开内容引入本文作为参考。
卵磷脂一般与一种溶剂结合使用,例如一种脂肪酸或油脂。例如在美国专利5,372,637,5,034,097和5,328,567中,描述了卵磷脂单独用作脱模剂,或与溶剂例如脂肪酸或油脂结合用作脱膜剂,这些公开的内容引入本文以作参考。
但是,单独卵磷脂,或其与脂肪酸或油脂结合,仍只是一种油基混合物。不论单独卵磷脂,或卵磷脂的油基混合物都不能够容易地形成稳定的含水组合物。但是,许多卵磷脂为基的脱模助剂组合物的理想应用是在涉及与水接触的水基的产品和方法中。因此,可分散于水中的稳定的水基脱模助剂组合物经常是工业需要或理想的脱模助剂组合物形式。
应用脱模助剂组合物的工业长期以来面对必须从油基脱模助剂组合物中制备水基的乳液。应用水基的乳液需要在使用脱模助剂组合物之前立即制备该组合物的水基的乳液。制备这种水基的乳液是一个复杂的过程,需要特殊的组份和合适的搅拌和乳化。因此,对许多工业,制备这种乳液过于复杂和昂贵,或认为至少是一种困难和复杂的过程,离该工业的专业领域过远。
例如在造纸过程和/或产品的大部分中使用脱模助剂的造纸工业中,水基的脱模助剂乳液必须在使用前配制,并且随后立即在乳液分层发生之前使用。涉及制备和应用脱模助剂组合物的含水乳液的方法的另一个复杂情况是,乳液制成后如不很快使用就需要不断搅拌以保持乳液,并防止油和水乳液组份相分离。
油和水乳液的特征分层使现存脱模助剂组合物的许多应用变得复杂化。通常的应用,例如用脱模助剂组合物喷涂或涂覆表面,会出现问题,因为乳液组份分离和喷涂或涂覆工艺产生不均匀的覆盖。另外,由于这种分层,很难获得乳液的理想分散状态,以使组合物喷涂于各种表面。
水基脱模助剂组合物缺乏稳定性引起的麻烦是妨碍了工业上购买和贮存即用形式的含水脱模助剂组合物。因此,许多不同工业上需要获得一种稳定水基脱模助剂组合物理想产品,因为这可以去除制备和应用水基脱模助剂组合物的麻烦和费用。
因此,需要一种稳定的含水脱模助剂组合物,它可以给广泛的粘性物质和脱模表面提供脱模能力。
因此,本发明的目的是提供一种含水卵磷脂基脱模助剂组合物,它可以稳定乳液的形式存在。
本发明的又一目的是提供一种含卵磷脂的水基脱模助剂组合物。
本发明的另一目的是提供一种稳定脱模助剂乳液,它可以用作可乳化浓缩物,在稀释时能提供稳定的分散液。
本发明进一步的目的是提供一种稳定脱模助剂组合物,它可以掺入粘性物质中,因此给该物质提供脱模能力,并且可以应用于脱模表面,因而给该表面提供脱模特性。
本发明的又一目的是提供一种食品级稳定脱模助剂组合物。
本发明的又一目的是提供一种可喷涂的脱模助剂乳液。
本发明的其它特征和有益效果将部分阐述于后面的说明书中,并且部分将由说明书而变得显而易见,或通过实施本发明而获知。通过说明书和所附权利要求特别指出的要素和组合,本发明的目的和其它有益效果将被认识和获得。
根据本发明,通过提供一种水基脱模助剂组合物,它含醇、脂肪酸或油、卵磷脂、水溶的或可水分散的表面活性剂、和水,已达到前述的目的。
本发明也具体体现一种给脱模表面赋予脱模特征的方法。这种方法包括施用脱模助剂组合物于脱模表面的步骤,所用的量足以使与脱模表面接触的物质脱模。
本发明进一步的实施方案包括一种给粘性物质赋予脱模特征的方法。这种方法包括给粘性物质中加入脱模助剂组合物,所用的量足以使粘性物质从与粘性物质相接触的脱模表面上脱离。
本发明也涉及制备水基脱模助剂组合物的方法。这种方法的步骤包括制成一种均匀混合物,它含有一种抗成块或抗凝结剂、一种醇、一种增稠剂和水,向混合物中加入一种表面活性剂,一种脂肪酸和卵磷脂,因此形成一种乳液。这种方法的优选实施方案包括下列步骤:a)在第一容器中,通过搅拌在水中将抗成块或抗凝结剂分散以形成一混合物;b)在第二容器中,通过搅拌在醇中将增稠剂分散以形成浆状物;c)然后将浆状物搅拌加入该混合物直至形成一种均匀混合物;d)依次加入水溶性的或水分散性的表面活性剂、脂肪酸和卵磷脂,同时搅拌直至每个加入组份间达到分散;和e)搅拌该均匀混合物直至形成乳液。形成的乳液优选为平滑、不透明、白色乳液。
应该理解,无论前述的一般说明,还是后继的详细说明都只是示范性和说明性的,并且将提供本发明(如已提出权利要求)的进一步阐释。
本发明的一个重要的优点就是脱模助剂组合物是水基的,因此在各种工业应用中可以用作脱模助剂。本发明的另一个优点是乳液形式的含水脱模助剂组合物的稳定性。乳化的含水脱模助剂组合物的这种即用特征也可提供本发明的各种工业用途。本发明另外的优点为能使用稳定乳液作为浓缩液,当它用水稀释时,提供一种稳定分散液。本含水脱模助剂组合物的这种质量可使它们在任何需要的浓度使用,因此进一步拓展了本发明的潜在用途。从本发明的稳定乳液制备稳定分散液的能力提供了应用该乳液或稀释乳液作为喷涂液的理想能力。
本发明的水基脱模肋剂组合物含有醇、脂肪酸或油、卵磷脂、水溶性或水分散性表面活性剂和水。下述的各组份的量表示为相对于组合物总重量的百分比。
根据本发明可以使用的醇优选包括,但不限于,二元醇。醇组份优选作为偶合剂,它可以提供冻结-熔化能力。因此,根据本发明,任何可以赋予本发明组合物这种能力的醇都可以使用。优选地,醇为乙醇或丙醇等等。若使用二元醇,二元醇优选为乙二醇、丙二醇、二甘醇或二丙二醇等等。
醇组份优选含量为组合物总重量的约1%至约15%,更优选约2%至约8%。
在本发明中使用的脂肪酸和油组份优选作用为卵磷脂的溶剂,并更优选与卵磷脂有协同作用,意即由此可达到卵磷脂的良好分散。根据本发明,可以使用单独的脂肪酸或油,或其混合物,或其任意组合。根据本发明,任何天然的脂肪酸或油均可以使用。优选地,脂肪酸或油是不饱和的,即在环境温度下呈液态。优选地,脂肪酸为C8-C20脂肪酸,和更优选地,脂肪酸为油酸,亚油酸或TOF酸,但并不仅限于此。本发明使用的脂肪酸和油可从市场获得,例如,购自HumKo Chemical Divion of Witco Corporation,Memphis,Tennessee。
相对于组合物的总重量,脂肪酸和油的含量优选为约5%至约40%(wt)范围,和更优选为约10%至约30%(wt)。
本发明的卵磷脂组份优选在本脱模助剂组合物中起活性成份的作用。卵磷脂,以它的各种混合物,商业上以例如Centrolene,Centrophase和Centrophil等系列名称销售。优选地,因其耐热特征,使用Centrophase HR系列。这些商品可以从例如Central Soya公司,Fort Wayne,Indiana获得。
相对于组合物的总重量,卵磷脂组份的含量优选为约3%至约30%,和更优选为约5%至约10%(wt)。
本发明的水溶性或水分散性表面活性剂组份起表面活性剂、乳化剂、稳定剂,和/或分散剂的功能。根据本发明,任何可以赋予这些特征的水溶性或水分散性的表面活性剂都可以使用。优选地,水溶性或水分散性的表面活性剂是聚合的。水溶性或水分散性的聚合表面活性剂组份优选选自非离子的聚合表面活性剂。优选地,非离子聚合表面活性剂选自水溶性嵌段共聚物。更优选地,该非离子表面活性剂是水溶性的环氧乙烷和环氧丙烷的水溶性嵌段共聚物、环氧乙烷和环氧丙烷的丁氧基嵌段共聚物、聚乙二醇酯或乙氧基化醇。根据本发明也可使用阴离子表面活性剂。若使用阴离子表面活性剂,优选使用硫代琥珀酸二辛酯(DOSS)。上述表面活性剂可由市场购得,例如获自Stepan Chemical Company,Northfield,Illinois;Harcros,以及BASF,Parsippany,New Jersey。
相对于组合物的总重量,本发明的水溶性或水分散性的表面活性剂组份的含量优选为约0.2%至约7%(wt),和更优选为约1%至约4%(wt)。
除上述组份外,脱模助剂组合物包含水。本发明组合物优选至少包括约45-50%的水,以保证水包油型的乳液的形成。
为了组合物的稳定性,本发明的脱模助剂组合物任选含抗成块或抗凝结剂。若使用抗成块或抗凝结剂,优选使用硅酸镁铝,例如Veegum,可购自R.T.Vanderbilt&Co.Novwalk,Connecticut。也可以使用硅酸钙或氧化铝作为抗成块或抗凝结剂。若使用抗成块或抗凝结剂,相对于组合物的总重量,其含量优选为约0%~3%(wt),更优选为约0.1%-1.0%(wt)。
本发明的脱模助剂组合物也可含一种增稠剂,它将赋予(组合物)粘度改性、乳化性/或稳定的附加特性。若包含增稠剂,优选使用树胶,藻酸盐或纤维素衍生物。若使用树胶,优选为黄原胶。若使用纤维素衍生物,优选使用羧甲基纤维素(CMC)。若使用增稠剂,相对于组合物的总重量,其含量优选为0%~3%(wt),更优选约0%~0.5%(wt)。
另外,如果需要,本发明的脱模助剂组合物可以含各种防腐剂。这些防腐剂可以用作抗氧化剂,保鲜剂和抗菌剂等。典型的防腐剂包括Kathon,BHT,BHA,TBHQ和苯甲酸钠等等。作为防腐剂,优选使用Busan1078,由Buckman Laboratories Intemational,Inc.制造,它是一种杀微生物剂。
本发明脱模助剂组合物的理想粘度,达到能使组合物容易泵入和自由流动的程度。这种特征极大地提高了作为喷涂液形式使用的本发明组合物的能力。
本发明的一个独特特征是,脱模助剂组合物形成水基乳液,它很长时间内在室温和从8℃至约50℃温度范围内保持稳定。本发明的水基乳液在室温和8℃时的稳定性特征表现为在至少四个月内,更优选6个月至一年内,不存在分层或其它物理缺陷,例如乳液的凝胶、沉淀、絮凝、沉降和变色。应注意到在8℃时,乳液的稳定持续时间应与在室温下一样长,但可能持续更长时间。在50℃时,本发明的乳液的稳定性特征为在至少14天内不存在分层或其它物理缺陷,此后这种温度下可观察到加速老化的迹象。
本发明的水基乳液也是独创的,因为它们具有良好的冻结-熔化能力。例如,在-15℃,本发明的水基乳液的稳定性特征表现为这样一种事实:该温度下乳液冻结了,但在熔化后,可以恢复均匀的状态,并在室温下保持稳定至少一个月。
相比于需要不断搅拌以保持乳液形式(即防止分层)的现存乳液,本发明的水基乳液的稳定性是一个确定无疑的优势。现存乳液由于分层和其它物理缺陷的发生,不能在任何一段时间内很好地贮存,因此很难以理想的商业即用形式购得。
除了本发明水基乳液的稳定性外,本发明的乳液可以浓缩液的形式制备,它可以用水稀释形成稳定的即用型稀释液。为制备本发明的乳液的稀释液,可以稀释乳液至水中1%的浓度。这种稀释液优选保持稳定至少3小时,即没有物理分层或其它物理变化。
本发明的稳定水基脱模助剂乳液可在多种工业中应用和有许多用途。对于水基脱模助剂乳液的多种用途的讨论,一般参见美国专利5,372,637,5,302,330和5,342,872,它们的公开内容引入本文以做参考。
本发明的脱模助剂组合物在工业用途中的其它的优点是它们具有低的起泡力,并不含SARA 313要报告的物质和挥发性有机物。
特别地,本发明的乳液可以直接加入(即未经稀释)至造纸机的湿端。根据粘附或“粘连”问题的严重程度,以干纤维的总重量计,加入造纸机的本发明的乳液的浓度为约0.08%~0.15%。给造纸过程加入这些量的本发明的水基乳液,可以赋予造纸材料从各种造纸材料接触的表面,即压辊、杨克氏辊、伏辊、干燥罐等上良好的脱离能力。对于在造纸机湿端使用脱模助剂的讨论,一般参见美国专利4,686,119和4,857,126,它们的公开内容引入本文以作参考。
本发明的水基乳液也可用于造纸机的干端,这是通过直接施用、或稀释然后施用,即喷涂于各种表面,即砑光机、伏辊或其它辊,它们都属于存在“粘连”问题的造纸机。对于在造纸机干端使用脱模助剂的讨论,一般参见美国专利5,256,254,其公开内容引入本文以作参考。
可利用本发明的水基乳液的优点的其它工业为食品工业。本发明的乳液可以由所有符合食品标准的成分组成。脱模助剂组合物可用于食品工业中的食品制备,即烹调、烧烤等,也可用于食品加工,即食品的批量生产。关于脱模助剂组合物在食品工业中应用的例子,一般参见涉及食品脱模组合物应用的美国专利5,374,434和涉及食品级塑模应用的美国专利5,376,320,它们的公开内容引入本文以作参考。
本发明考虑到的范围也包括,水基乳液应用于成型工业,例如关于造纸、塑料、复合材料、水泥、粘土、织物、橡胶和陶瓷,也用于涉及需要脱模能力的表面或基材的任何另外的工业过程。本发明的脱模助剂组合物可作为成型脱模助剂用于成型工艺中,即,让成型材料容易地从模子中取出,并防止材料与模子粘连,例如美国专利5,387,750中的成型制造工艺,其公开内容引入本文以作参考。
本发明考虑到的范围也包括,水基乳液用于粘性物质,例如纸浆和纸糊、纸、塑料、复合材料、水泥、粘土、织物、橡胶和陶瓷组合物和/或浆状物,它们在各种工业过程中制备,这些过程需要从表面脱模的脱模能力,例如与欲成型的纸、塑料、复合材料、水泥,粘土、织物、橡胶和陶瓷材料相接触的模具、辊和各种其它基材的表面。关于使用组合物水溶液作为模具脱模剂的讨论,参见美国专利5,372,637,其公开内容引入本文以作参考。
使用下述说明的标准实验室技术,确认了上述脱模助剂组合物的脱模能力。本发明将由下列实施例予以进一步阐明,这些实施例纯粹只是说明性的。实施例1
制备下列成份的组合物:
成份 占组合物重量的百分比
水 66.37
Veegum,R.T.Vanderbilt公司的硅酸镁铝 0.22
丙二醇 2.2
Toximul 8320-Stepan Chemical
公司的环氧乙烷和环氧丙烷的
丁氧基嵌段共聚物 1.1
黄原胶 0.11
Industrene 106,Witco的油酸 24.0
Centrophase HR-卵磷脂,Central Soya
出品,大约60%活度 6.0
Busan1078
Buckman Intemational Laberatories
出品的Kathon杀微生物剂 50ppm
方法:
在第一个容器中,抗成块剂Veegum分散于水中形成混合物。在第二容器中,将增稠剂黄厚胶分散于醇(丙二醇)中形成浆状物。然后将浆状物搅拌入混合物中直至形成均匀混合物。于均匀混合物中加入表面活性剂,即环氧乙烷和环氧丙烷的丁氧基嵌段共聚物,然后搅拌直至达到完全的分散。接着加入脂肪酸/油组份油酸,然后搅拌至分散。最后加入卵磷脂和一种杀微生物剂,Busan1078,最终混合物搅拌至形成平滑、不透明、白色的稳定乳液。
实施例2
除用Union Carbide的环氧乙烷和环氧丙烷的丁氧基嵌段共聚物TergitolXD代替Toximul 8320丁氧基嵌段共聚物外,根据实施例1的相同方法和用量制备与实施例1产物相似的一种组合物。
该生成的组合物与实施例1制备的乳液相似,是一种稳定、平滑、不透明、白色的乳液。
实施列3
除用BASF的环氧乙烷和环氧丙烷的嵌段共聚物Pluronic L-64代替Toximul 8320外,根据实施例1的相同方法和用量制备与实施例1产物相似的一种组合物。按组合物总重量计,Pluronic L-64使用的量为2.0%,因此水成分减至65.47%。
该生成的组合物与实施例1的制备的乳液相似,是一种稳定、平滑、不透明、白色的乳液。
实施例4
除用Chemax公司,Greeville,South Carolina生产的聚氧乙基化(14)可可脂肪酸Chemax E-600ML和妥尔油脂肪酸的聚乙二醇MW 600二酯ChemaxPEG-600 DT的组合物代替Toximul 8320外,根据实施例1的相同方法和用量制备与实施例1产物相似的一种组合物。按组合物总重量计,Chemax E-600 ML和Chemax PEG 600 DT的组合物使用的量为4.0%,因此水成份减至63.47%。Chemax E-600 ML和Chemax PEG 600 DT组合物的组成为75%ML(单月桂酸脂)组份和25%DT(二树脂酸酯)组份。
该生成的组合物与实施例1制备的乳液相似,是一种稳定、平滑、不透明、白色的乳液。
实施例5
足量制备实施例1-4的组合物,以便由其中每个组合物制备四个样品,使每个组合物在四个不同的温度下评价其稳定性。
在室温、50℃、8℃和-15℃下评价实施例1-4组合物的稳定性。定期肉眼观察每个样品,确认是否乳液的组份发生分层和是否乳液发生了物理缺陷。特别要观察的物理缺陷为凝结、絮凝、沉降和变色。
对于在-15℃下评价的四个样品,将这些样品冷冻过夜(约12小时),然后将其加热至室温。一旦达到室温,观察每个样品,看经过冷冻和熔化步骤后乳液是否仍保持不变。若乳液保持不变,进一步评价其稳定性,看乳液在任意时间后是否保持稳定。
结果:
在至少四个月的期间内,室温下评价的四个样品的每一个均保持稳定。
在至少四个月的期间内,8℃下评价的四个样品的每一个也保持稳定。
在观察到加速老化和物理缺陷迹象前,至少在14天的期间内,50℃下评价的四个样品的每一个也保持稳定。
在冷冻和随后的熔化操作后,-15℃下评价的四个样品的每一个保持不变。熔化至室温后,在观察到分层或物理缺陷的迹象前,这四个样品在至少一个月内保持稳定。
实施例6
对实施例1-4组合物的每一种评价其用水稀释的能力。
各组合物的1g与99g的水组合,并振荡或搅拌至分散。一旦形成分散液,评价每个样品,确定样品保持分散的时间。
四个组合物的每一种形成均匀分散体,在组份分层,例如一种组份浮至顶部或凝聚于底部之前,持续了至少3个小时。每个样品都确认形成了可接受的稀释液。
实施例7
用实施例1的组合物评价本发明的组合物的脱模助剂特性。
在0.5%稠度进行打浆1小时。然后给打浆器中加入20%(重量)的聚乙烯醇(PVOH),相应的量为每10g PVOH对50g的纸浆。制成了纸浆状物。
这种浆状物置于一种手抄纸模(hand sheet mold),并按下述用量将本发明的脱模助剂组合物加入手抄纸模中。然后挤压手抄纸并将其置于铝箔上,然后在钢罐上干燥。试图从铝箔上移下手抄纸,得到下述结果。
结果:
A:没有脱模助剂组合物制备的手抄纸(对照组)
不损坏手抄纸,就不能从铝箔上剥离手抄纸。
B.具有40ppm(纤维重量)脱模助剂组合物制备的手抄纸:
虽然手抄纸与铝箔有粘连,但可以不损坏手抄纸而将其从铝箔上容易地剥离。
C.具有80ppm(纤维重量)脱模助剂组合物制备的手抄纸:
手抄纸与铝箔根本不粘连。一旦干燥,即从铝箔上滑离。
上述结果表明,采用标准实验室技术,本发明的脱模助剂组合物在40ppm(纤维重量)的浓度时,可以给脱离表面即铝箔提供理想的脱离能力。
从理解本发明的说明和实施本发明,本领域熟练技术人员将明了本发明的其它实施方案,应理解说明和实施例意在示范,其发明的真正范围示于下述权利要求中。
Claims (48)
1.一种水基脱模助剂组合物,它含:
a)醇;
b)脂肪酸或油;
c)卵磷脂;
d)水溶性或水分散性表面活性剂;和
e)水。
2.权利要求1的脱模助剂组合物,另含抗成块或抗凝结剂。
3.权利要求1的脱模助剂组合物,另含增稠剂。
4.权利要求1的脱模助剂组合物,另含防腐剂。
5.权利要求1的脱模助剂组合物,其中所述醇为二醇类。
6.权利要求5的脱模助剂组合物,其中所述二醇选自乙二醇、丙二醇、二丙二醇和二甘醇。
7.权利要求1的脱模助剂组合物,其中所述醇选自乙醇和丙醇。
8.权利要求1的脱模助剂组合物,其中所述脂肪酸或油为天然衍生的脂肪酸或油。
9.权利要求8的脱模助剂组合物,其中所述脂肪酸或油为不饱和脂肪酸或油。
10.权利要求1的脱模助剂组合物,其中所述脂肪酸为C8-C20脂肪酸。
11.权利要求9的脱模助剂组合物,其中所述脂肪酸选自油酸、亚油酸和TOF酸。
12.权利要求1的脱模助剂组合物,其中所述水溶性或水分散性的表面活性剂是聚合的。
13.权利要求12的脱模助剂组合物,其中所述水溶性或水分散性的聚合表面活性剂是非离子型的。
14.权利要求13的脱模助剂组合物,其中所述非离子型聚合表面活性剂选自水溶性的环氧乙烷和环氧丙烷的嵌段共聚物,环氧乙烷和环氧丙烷的丁氧基嵌段共聚物,聚乙二醇酯和乙氧基化醇。
15.权利要求1的脱模助剂组合物,其中所述水溶性或水分散性表面活性剂是阴离子型的。
16.权利要求15的脱模助剂组合物,其中所述阴离子表面活性剂为硫代琥珀酸二辛酯。
17.权利要求2的脱模助剂组合物,其中所述抗成块或抗凝结剂选自硅酸镁铝、硅酸钙和氧化铝。
18.权利要求3的脱模助剂组合物,其中所述增稠剂选自树胶、藻酸盐和纤维素衍生物。
19.权利要求18的脱模助剂组合物,其中所述树胶为黄原胶。
20.权利要求18的脱模助剂组合物,其中所述纤维素衍生物为羧甲基纤维素(CMC)。
21.权利要求4的脱模助剂组合物,其中所述防腐剂选自Kathon、BHT、BHA、TBHQ和苯甲酸钠。
22.权利要求1的脱模助剂组合物,其中相对于组合物的总重量,所述醇的含量为约1%至约15%。
23.权利要求22的脱模助剂组合物,其中相对于组合物的总重量,所述醇的含量为约2%至约8%。
24.权利要求22的脱模助剂组合物,其中相对于组合物的总重量,所述脂肪酸或油的含量为约5%至约40%。
25.权利要求24的脱模助剂组合物,其中相对于组合物的总重量,所述脂肪酸或油的含量为约10%至约30%。
26.权利要求1的脱模助剂组合物,其中相对于组合物的总重量,所述卵磷脂的含量为约3%至约30%。
27.权利要求26的脱模助剂组合物,其中相对于组合物的总重量,所述卵磷脂的含量为约5%至约10%。
28.权利要求1的脱模助剂组合物,其中相对于组合物的总重量,所述水溶性或水分散性的表面活性剂的含量为约0.2%至约7%。
29.权利要求28的脱模助剂组合物,其中相对于组合物的总重量,所述水溶性或水分散性的表面活性剂的含量为约1%至约4%。
30.权利要求2的脱模助剂组合物,其中相对于组合物的总重量,所述抗成块或抗凝结剂的含量为约0%至约3%。
31.权利要求30的脱模助剂组合物,其中相对于组合物的总重量,所述抗成块或抗凝结剂的含量为约0.1%至约1.0%。
32.权利要求3的脱模助剂组合物,其中相对于组合物的总重量,所述增稠剂的含量为约0%至约3%。
33.权利要求32的脱模助剂组合物,其中相对于组合物的总重量,所述增稠剂的含量为约0%至约0.5%。
34.一种赋予脱模表面以脱模特性的方法,包括的步骤为将权利要求1的组合物施用于所述脱膜表面上,所用的量足以使与所述脱模表面接触的物料脱模。
35.权利要求34的方法,其中所述脱模表面为湿端料辊、压辊、杨克氏辊、伏辊、干燥罐、砑光机组套或干燥辊。
36.权利要求34的方法,其中所述脱模表面为模。
37.权利要求34的方法,其中所述物料为一种组合物或浆状物,其所含的物质选自纸、塑料、复合材料、水泥、粘土、织物、橡胶和陶瓷。
38.权利要求34的方法,其中所述的施用通过喷涂实现。
39.一种赋予粘性物料以脱模特性的方法,包括的步骤为将权利要求1的组合物加入所述粘性物质,所用的量足以使所述物料从所述物料接触的脱模表面上脱模。
40.权利要求39的方法,其中所述脱模表面为湿端料辊、压辊、杨克氏辊、伏辊、干燥罐、砑光机组套或干燥辊。
41.权利要求39的方法,其中所述脱模表面为模。
42.权利要求39的方法,其中所述物料为一种组合物或浆状物,其所含的物质选自纸、塑料、复合材料、水泥、粘土、织物、橡胶和陶瓷。
43.一种制备水基脱模助剂组合物的方法,包括的步骤为:
a)在第一容器中,通过搅拌将一种抗成块或抗凝结剂分散于水中形成混合物;
b)在第二容器中,通过搅拌将一种增稠剂分散于醇中形成浆状物;
c)然后将制好的浆状物搅拌入制好的混合物中直至形成一种均匀的混合物;
d)然后边搅拌边加入一种水溶性或水分散性表面活性剂、脂肪酸和卵磷脂,直至各加入组份达到乳化;和
e)搅拌均匀混合物直至形成乳液。
44.权利要求43的方法,其中在加入卵磷脂后,加入至少一种防腐剂。
45.权利要求1的脱模助剂组合物,其为乳液形式。
46.权利要求1的脱模助剂组合物,其为可乳化的浓缩液,它能提供稳定的在水中的稀释液。
47.权利要求1的脱模助剂组合物,其在室温下是稳定的。
48.权利要求1的脱模助剂组合物,其其在约8℃至约50℃的温度下是稳定的。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US08/395,608 | 1995-02-28 | ||
US08/395,608 US5658374A (en) | 1995-02-28 | 1995-02-28 | Aqueous lecithin-based release aids and methods of using the same |
Publications (2)
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CN1176655A true CN1176655A (zh) | 1998-03-18 |
CN1055965C CN1055965C (zh) | 2000-08-30 |
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CN96192243A Expired - Fee Related CN1055965C (zh) | 1995-02-28 | 1996-02-12 | 含水卵磷脂为基的脱模助剂及其使用方法 |
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US (1) | US5658374A (zh) |
EP (1) | EP0822971A1 (zh) |
JP (1) | JPH11501343A (zh) |
CN (1) | CN1055965C (zh) |
AR (1) | AR001094A1 (zh) |
AU (1) | AU700564B2 (zh) |
BR (1) | BR9607623A (zh) |
CA (1) | CA2213727C (zh) |
CZ (1) | CZ263397A3 (zh) |
FI (1) | FI973522A0 (zh) |
NO (1) | NO973942L (zh) |
NZ (1) | NZ302992A (zh) |
SK (1) | SK114497A3 (zh) |
WO (1) | WO1996026997A1 (zh) |
ZA (1) | ZA961205B (zh) |
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CN110142901A (zh) * | 2019-06-17 | 2019-08-20 | 江苏力凡胶囊有限公司 | 一种用于空心胶囊的脱模剂及其制备方法 |
CN112725060A (zh) * | 2020-11-12 | 2021-04-30 | 惠州市麒麟环保材料有限公司 | 一种新型混凝土制品用脱模剂及其制备方法 |
Also Published As
Publication number | Publication date |
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AR001094A1 (es) | 1997-09-24 |
AU700564B2 (en) | 1999-01-07 |
ZA961205B (en) | 1996-10-28 |
NO973942D0 (no) | 1997-08-27 |
CZ263397A3 (en) | 1997-12-17 |
CN1055965C (zh) | 2000-08-30 |
NO973942L (no) | 1997-08-27 |
BR9607623A (pt) | 1998-06-09 |
MX9706510A (es) | 1997-11-29 |
CA2213727C (en) | 2003-11-11 |
FI973522A (fi) | 1997-08-27 |
AU4918396A (en) | 1996-09-18 |
WO1996026997A1 (en) | 1996-09-06 |
US5658374A (en) | 1997-08-19 |
JPH11501343A (ja) | 1999-02-02 |
EP0822971A1 (en) | 1998-02-11 |
NZ302992A (en) | 1999-05-28 |
CA2213727A1 (en) | 1996-09-06 |
SK114497A3 (en) | 1998-02-04 |
FI973522A0 (fi) | 1997-08-27 |
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