Formaldehyde free binder and multi-component nanoparticle

    公开(公告)号:US11453798B2

    公开(公告)日:2022-09-27

    申请号:US15100512

    申请日:2013-12-05

    Abstract: This patent describes formaldehyde free or formaldehyde reduced binders useful, for example, in a fiber based composite material such as glass or other mineral fiber insulation, non-woven fabric or wood-based board. In one example, melamine is used as an acidic solution or a salt. The salt or solution is used to create an aqueous binder with other components such as a polyol and a crosslinker. A preferred polyol is a nanoparticle comprising high molecular weight starch. In other examples, binders include mixtures of a polyol with urea and a crosslinker. In other examples, a multi-component nanoparticle is made by reacting a polyol such as starch in an extruder with an insolubilizer such as melamine or urea. The resulting particles are mixed with water, optionally with other components such as an additional crosslinker, to create an aqueous binder.

    BIO-BASED BINDER AND FIBERGLASS INSULATION
    2.
    发明申请
    BIO-BASED BINDER AND FIBERGLASS INSULATION 审中-公开
    生物基底胶和纤维绝缘

    公开(公告)号:US20140033950A1

    公开(公告)日:2014-02-06

    申请号:US13957555

    申请日:2013-08-02

    Inventor: Uttam Kumar SAHA

    Abstract: A curable aqueous binder has two primary components. The first component is a bio-based material or mixture of bio-based materials such as starch or polyvinyl alcohol. The second component is one or more compounds selected from the group of urea, polyurea and substituted urea. The first and second components make up most (i.e. 50% or more) of all solids in the binder. The dry weight of the second component is preferably 25% or more of the dry weight of the first component. The solids content of the binder is preferably between 6 wt % and 20 wt %. A method of making a mineral fiber product includes a step of curing a binder as described above in situ on a mass of mineral fibers at a temperature of 175 degrees C. or more. A preferred binder is a mixture of urea and starch in a ratio by weight between 50-50 and 80-20 in water at a solids content of 10-20 wt %, substantially without other components, and may be used as a replacement for formaldehyde or petrochemical based resins. The starch is preferably cooked, thermoplastic or nanoparticle starch.

    Abstract translation: 可固化水性粘合剂具有两个主要组分。 第一组分是生物基材料或生物基材料的混合物,例如淀粉或聚乙烯醇。 第二组分是一种或多种选自脲,聚脲和取代的脲的化合物。 第一和第二组分占粘合剂中所有固体的最多(即50%或更多)。 第二成分的干重优选为第一成分的干重的25重量%以上。 粘合剂的固体含量优选在6重量%至20重量%之间。 制备矿物纤维产品的方法包括如下步骤:在175℃或更高的温度下在大量矿物纤维上原位固化粘合剂。 优选的粘合剂是尿素和淀粉的混合物,其重量比在50-50至80-20之间,固体含量为10-20重量%,基本上不含其它组分,可用作甲醛的替代物 或石化基树脂。 淀粉优选是煮熟的,热塑性的或纳米颗粒淀粉。

    FORMALDEHYDE FREE BINDER AND MULTI-COMPONENT NANOPARTICLE
    3.
    发明申请
    FORMALDEHYDE FREE BINDER AND MULTI-COMPONENT NANOPARTICLE 审中-公开
    甲醛自由键和多组分纳米颗粒

    公开(公告)号:US20160297983A1

    公开(公告)日:2016-10-13

    申请号:US15100512

    申请日:2013-12-05

    Abstract: This patent describes formaldehyde free or formaldehyde reduced binders useful, for example, in a fiber based composite material such as glass or other mineral fiber insulation, non-woven fabric or wood-based board. In one example, melamine is used as an acidic solution or a salt. The salt or solution is used to create an aqueous binder with other components such as a polyol and a crosslinker. A preferred polyol is a nanoparticle comprising high molecular weight starch. In other examples, binders include mixtures of a polyol with urea and a crosslinker. In other examples, a multi-component nanoparticle is made by reacting a polyol such as starch in an extruder with an insolubilizer such as melamine or urea. The resulting particles are mixed with water, optionally with other components such as an additional crosslinker, to create an aqueous binder.

    Abstract translation: 该专利描述了无甲醛或甲醛还原的粘合剂,其可用于例如基于纤维的复合材料如玻璃或其它矿物纤维绝缘体,无纺织物或木基板。 在一个实例中,三聚氰胺用作酸性溶液或盐。 盐或溶液用于产生具有其它组分如多元醇和交联剂的水性粘合剂。 优选的多元醇是包含高分子量淀粉的纳米颗粒。 在其它实例中,粘合剂包括多元醇与脲和交联剂的混合物。 在其它实例中,多组分纳米颗粒通过使挤出机中的多元醇如淀粉与不分散剂如三聚氰胺或尿素反应来制备。 所得颗粒与水,任选地与其它组分例如另外的交联剂混合,以产生水性粘合剂。

    BIO-BASED POLYMER NANOPARTICLE AND COMPOSITE MATERIALS DERIVED THEREFROM
    4.
    发明申请
    BIO-BASED POLYMER NANOPARTICLE AND COMPOSITE MATERIALS DERIVED THEREFROM 审中-公开
    生物基聚合物纳米复合材料和复合材料

    公开(公告)号:US20170029549A1

    公开(公告)日:2017-02-02

    申请号:US15291598

    申请日:2016-10-12

    CPC classification number: C08F290/10 C08F251/00

    Abstract: Methods of producing a latex, and the resulting latexes, are described herein. Bio-based colloidal particles are used in a free radical polymerization process. The particles may provide one or more of a seed particle, stabilizing agent, Pickering emulsifier, surfactant or co-monomer. Optionally, the particles (or biopolymer molecules such as starch in the particles) are functionalized, for example to provide double bonds or free radicals, prior to or while conducting a free radical polymerization reaction including the particles and a second compound which is a monomer. In another option, the particles are used in the presence of a functionalizing agent (capable for example of providing double bonds or free radicals on a biopolymer) in a free radical polymerization reaction. Optionally, the resulting latex may include particles of a mixed morphology including a bio-based phase. Methods of functionalizing bio-based particles and, in some cases, resultant particles (intermediate reaction products) are also described.

    Abstract translation: 本文描述了制备胶乳和所得胶乳的方法。 生物基胶体颗粒用于自由基聚合过程。 颗粒可以提供一种或多种种子颗粒,稳定剂,Pickering乳化剂,表面活性剂或共聚单体。 任选地,在进行包括颗粒的自由基聚合反应之前或同时进行颗粒(或颗粒中的生物聚合物分子,例如颗粒中的淀粉)的官能化,例如提供双键或自由基,以及作为单体的第二化合物。 在另一种选择中,在自由基聚合反应中,在官能化剂(例如能够在生物聚合物上提供双键或自由基)的存在下使用颗粒。 任选地,所得胶乳可以包括包含生物基相的混合形态的颗粒。 也描述了生物基颗粒官能化的方法,以及在一些情况下所得到的颗粒(中间反应产物)。

    BIO-BASED BINDER AND FIBERGLASS INSULATION
    6.
    发明申请
    BIO-BASED BINDER AND FIBERGLASS INSULATION 审中-公开
    生物基底胶和纤维绝缘

    公开(公告)号:US20150291857A1

    公开(公告)日:2015-10-15

    申请号:US14418313

    申请日:2013-08-01

    Inventor: Uttam Kumar Saha

    Abstract: A curable aqueous binder has two primary components. The first component is a bio-based material or mixture of bio-based materials such as starch or polyvinyl alcohol. The second component is one or more compounds selected from the group of urea, polyurea and substituted urea. The first and second components make up most (i.e. 50% or more) of all solids in the binder. The dry weight of the second component is preferably 25% or more of the dry weight of the first component. The solids content of the binder is preferably between 6 wt % and 20 wt %. A method of making a mineral fiber product includes a step of curing a binder as described above in situ on a mass of mineral fibers at a temperature of 175 degrees C. or more. A preferred binder is a mixture of urea and starch in a ratio by weight between 50-50 and 80-20 in water at a solids content of 10-20 wt %, substantially without other components, and may be used as a replacement for formaldehyde or petrochemical based resins. The starch is preferably cooked, thermoplastic or nanoparticle starch.

    Abstract translation: 可固化水性粘合剂具有两个主要组分。 第一组分是生物基材料或生物基材料的混合物,例如淀粉或聚乙烯醇。 第二组分是一种或多种选自脲,聚脲和取代的脲的化合物。 第一和第二组分占粘合剂中所有固体的最多(即50%或更多)。 第二成分的干重优选为第一成分的干重的25重量%以上。 粘合剂的固体含量优选在6重量%至20重量%之间。 制备矿物纤维产品的方法包括如下步骤:在175℃或更高的温度下在大量矿物纤维上原位固化粘合剂。 优选的粘合剂是尿素和淀粉的混合物,其重量比在50-50至80-20之间,固体含量为10-20重量%,基本上不含其它组分,可用作甲醛的替代物 或石化基树脂。 淀粉优选是煮熟的,热塑性的或纳米颗粒淀粉。

    APTAMER BIOCONJUGATE DRUG DELIVERY DEVICE
    7.
    发明申请

    公开(公告)号:US20150025029A1

    公开(公告)日:2015-01-22

    申请号:US14360503

    申请日:2012-09-21

    Abstract: A delivery device for a active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders, such as cancer. The delivery device survives for a period of time in the body sufficient to allow for transport and uptake of the delivery device into targeted cells. The degree of crosslinking can provide a desired release profile of the active agent at, near or inside the target cells. The nanoparticles may be made by applying a high shear force in the presence of a cross linker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water.

    Abstract translation: 用于活性剂的递送装置包括基于诸如淀粉的生物聚合物的纳米颗粒。 递送装置还可以是适体 - 生物聚合物 - 活性剂缀合物的形式,其中适体靶向用于治疗特定疾病例如癌症的装置。 递送装置在身体中存活足够长的时间以允许将递送装置运输和摄取到靶细胞中。 交联度可以提供活性剂在靶细胞附近或内部的所需释放曲线。 可以通过在交联剂的存在下施加高剪切力来制备纳米颗粒。 颗粒可以主要在50-150nm的范围内,并形成交联的水凝胶颗粒在水中的胶态分散体。

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