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    Methods for making low remnant free formaldehyde microcapsules and microcapsules made by same
    1.
    发明授权
    Methods for making low remnant free formaldehyde microcapsules and microcapsules made by same 有权

    公开(公告)号：US10005059B2

    公开(公告)日：2018-06-26

    申请号：US15240435

    申请日：2016-08-18

    Applicant: Microtek Laboratories, Inc.

    Inventor： Carl M. Lentz ,  David R. Virgallito ,  Jerry K. Lawson

    IPC: B01J13/18 ,  C09K5/06 ,  C08G12/32

    CPC classification number: C09K5/063 ,  B01J13/14 ,  B01J13/18 ,  C08G12/32 ,  F28D20/023 ,  Y02E60/145

    Abstract: Methods for producing microcapsules begin by preparing an emulsion of a surfactant, core material, and water, followed by the addition of a crosslinking agent and a melamine formaldehyde prepolymer, which is subsequently polymerized. The crosslinking agent is added before the melamine formaldehyde prepolymer, with a first addition or a second addition of a melamine formaldehyde prepolymer, or is divided for addition with both a first addition and a second addition of melamine formaldehyde prepolymer. The crosslinking agent is a mixture of a reaction product of a cyclic urea (U) and a multifunctional aldehyde (A), and at least one crosslinker selected from the following group: a reaction products of (i) an aminotriazine and at least one aldehyde selected from the group consisting of aliphatic monoaldehydes and multifunctional aliphatic aldehydes, (ii) urea and/or cyclic ureas and formaldehyde, or (iii) phenols and aliphatic monoaldehydes, or from alkoxycarbonylaminotriazines, or multifunctional isocyanates, epoxides, aziridines, and carbodiimides.

    METHODS FOR MAKING LOW REMNANT FREE FORMALDEHYDE MICROCAPSULES AND MICROCAPSULES MADE BY SAME
    2.
    发明申请
    METHODS FOR MAKING LOW REMNANT FREE FORMALDEHYDE MICROCAPSULES AND MICROCAPSULES MADE BY SAME 有权
    用于制备低残留免费甲醛微球和由其制备的微球的方法

    公开(公告)号：US20170065956A1

    公开(公告)日：2017-03-09

    申请号：US15240435

    申请日：2016-08-18

    Applicant: Microtek Laboratories, Inc.

    Inventor： Carl M. Lentz ,  David R. Virgallito ,  Jerry K. Lawson

    IPC: B01J13/18 ,  C09K5/06

    CPC classification number: B01J13/18 ,  B01J13/14 ,  C08G12/32 ,  C09K5/063 ,  F28D20/023 ,  Y02E60/145

    Abstract: Methods for producing microcapsules begin by preparing an emulsion of a surfactant, core material, and water, followed by the addition of a crosslinking agent and a melamine formaldehyde prepolymer, which is subsequently polymerized. The crosslinking agent is added before the melamine formaldehyde prepolymer, with a first addition or a second addition of a melamine formaldehyde prepolymer, or is divided for addition with both a first addition and a second addition of melamine formaldehyde prepolymer. The crosslinking agent is a mixture of a reaction product of a cyclic urea (U) and a multifunctional aldehyde (A), and at least one crosslinker selected from the following group: a reaction products of (i) an aminotriazine and at least one aldehyde selected from the group consisting of aliphatic monoaldehydes and multifunctional aliphatic aldehydes, (ii) urea and/or cyclic ureas and formaldehyde, or (iii) phenols and aliphatic monoaldehydes, or from alkoxycarbonylaminotriazines, or multifunctional isocyanates, epoxides, aziridines, and carbodiimides.

    Abstract translation: 制备微胶囊的方法首先是制备表面活性剂，芯材和水的乳液，然后加入交联剂和三聚氰胺甲醛预聚物，随后聚合。 在三聚氰胺甲醛预聚物之前加入交联剂，首先添加或第二次加入三聚氰胺甲醛预聚物，或者分别加入三聚氰胺甲醛预聚物的第一次加入和第二次。 交联剂是环脲（U）和多官能醛（A）的反应产物和至少一种选自以下组的交联剂的混合物：（i）氨基三嗪和至少一种醛 选自脂族单醛和多官能脂族醛，（ii）脲和/或环脲和甲醛，或（iii）酚和脂族单醛，或者是烷氧基羰基氨基三嗪或多官能异氰酸酯，环氧化物，氮丙啶和碳二亚胺。

    MICROCAPSULES HAVING ACRYLIC POLYMERIC SHELLS AND METHODS OF MAKING SAME
    5.
    发明申请
    MICROCAPSULES HAVING ACRYLIC POLYMERIC SHELLS AND METHODS OF MAKING SAME 审中-公开
    具有丙烯酸聚合物的微球及其制备方法

    公开(公告)号：US20150158003A1

    公开(公告)日：2015-06-11

    申请号：US14561473

    申请日：2014-12-05

    Applicant: Microtek Laboratories, Inc.

    Inventor： Teresa T. Virgallito ,  Carl M. Lentz ,  David R. Virgallito ,  Dale E. Work

    IPC: B01J13/18

    CPC classification number: B01J13/185 ,  B01J13/14 ,  B01J13/206 ,  F28D20/023 ,  Y10T428/2987

    Abstract: Microcapsules are described that include a hydrophobic core material within an acrylic polymeric shell that was polymerized from a monomeric blend that includes a mono-functional acrylic monomer as less than 25% by weight of the monomeric blend and a hyperbranched polyester acrylic oligomer as the balance of the monomeric blend, and methods of making the same. The methods include a two-stage polymerization process where the monomeric blend is polymerized with an azo-initiator in a first stage polymerization reaction and is subsequently further polymerized with a water soluble initiator in a second stage polymerization reaction.

    Abstract translation: 描述了包括在丙烯酸聚合物壳内的疏水性芯材料的微胶囊，其由单体共混物聚合，所述单体共混物包含小于单体共混物的25重量％的单官能丙烯酸单体和作为余量的超支化聚酯丙烯酸低聚物 单体混合物及其制备方法。 所述方法包括两阶段聚合方法，其中单体共混物在第一阶段聚合反应中与偶氮引发剂聚合，随后在第二阶段聚合反应中进一步与水溶性引发剂聚合。

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