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    • 2. 发明授权
    • Recycling superabsorbent polymer fines
    • 回收超吸收性聚合物细粉
    • US07910688B2
    • 2011-03-22
    • US12256038
    • 2008-10-22
    • Gonglu TianScott J. SmithJanet Pate-Linton
    • Gonglu TianScott J. SmithJanet Pate-Linton
    • C08C1/14
    • B01J20/26C08F265/04C08F265/06C08L51/003C08L2666/02C08L2666/04
    • A process is described for recycling superabsorbent polymer fines into a process that includes treating the superabsorbent polymer fines with caustic and a polymerization step for making the superabsorbent polymer gel. The process requires treating the superabsorbent polymer fines with a caustic, followed by mixture with polymerizable monomer solution, and polymerizing the mixture of the superabsorbent polymer fines and monomer to form the aqueous fluid absorbent polymer. In the process, the fines are incorporated into the new polymer gel and become indistinguishable there from. The gel may then be comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The particulate may then be coated with a surface crosslinking agent and surface additives and heated for surface conversion.
    • 描述了一种用于将超吸收性聚合物细粒再循环到包括用苛性碱处理超吸收性聚合物细粒的方法和用于制备超吸收性聚合物凝胶的聚合步骤的方法。 该方法需要用苛性碱处理超吸收性聚合物细粒,然后与可聚合单体溶液混合,并聚合超吸收性聚合物细粒和单体的混合物以形成水性流体吸收聚合物。 在这个过程中,细粉被掺入到新的聚合物凝胶中,并且与之不能区分。 然后可以将凝胶粉碎成干燥的颗粒,然后在具有小于所需尺寸的细粉部分中分离成具有期望的最小粒度的部分。 然后可以用表面交联剂和表面添加剂涂覆颗粒,并加热以进行表面转化。
    • 3. 发明授权
    • Recycling superabsorbent polymer fines
    • 回收超吸收性聚合物细粉
    • US08309682B2
    • 2012-11-13
    • US13020898
    • 2011-02-04
    • Gonglu TianScott J. SmithJanet Pate-Linton
    • Gonglu TianScott J. SmithJanet Pate-Linton
    • C08C1/14
    • B01J20/26C08F265/04C08F265/06C08L51/003C08L2666/02C08L2666/04
    • A process is described for recycling superabsorbent polymer fines into a process that includes treating the superabsorbent polymer fines with caustic and a polymerization step for making the superabsorbent polymer gel. The process requires treating the superabsorbent polymer fines with a caustic, followed by mixture with polymerizable monomer solution, and polymerizing the mixture of the superabsorbent polymer fines and monomer to form the aqueous fluid absorbent polymer. In the process, the fines are incorporated into the new polymer gel and become indistinguishable there from. The gel may then be comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The particulate may then be coated with a surface crosslinking agent and surface additives and heated for surface conversion.
    • 描述了一种用于将超吸收性聚合物细粒再循环到包括用苛性碱处理超吸收性聚合物细粒的方法和用于制备超吸收性聚合物凝胶的聚合步骤的方法。 该方法需要用苛性碱处理超吸收性聚合物细粒,然后与可聚合单体溶液混合,并聚合超吸收性聚合物细粒和单体的混合物以形成水性流体吸收聚合物。 在这个过程中,细粉被掺入到新的聚合物凝胶中,并且与之不能区分。 然后可以将凝胶粉碎成干燥的颗粒,然后在具有小于所需尺寸的细粉部分中分离成具有期望的最小粒度的部分。 然后可以用表面交联剂和表面添加剂涂覆颗粒,并加热以进行表面转化。
    • 4. 发明申请
    • RECYCLING SUPERABSORBENT POLYMER FINES
    • 回收超吸收聚合物
    • US20120292566A1
    • 2012-11-22
    • US13564810
    • 2012-08-02
    • Gonglu TianScott J. SmithJanet Pate-Linton
    • Gonglu TianScott J. SmithJanet Pate-Linton
    • B01J20/26B05D7/00B02C23/08B01J20/30
    • B01J20/26C08F265/04C08F265/06C08L51/003C08L2666/02C08L2666/04
    • A process is described for recycling superabsorbent polymer fines into a process that includes treating the superabsorbent polymer fines with caustic and a polymerization step for making the superabsorbent polymer gel. The process requires treating the superabsorbent polymer fines with a caustic, followed by mixture with polymerizable monomer solution, and polymerizing the mixture of the superabsorbent polymer fines and monomer to form the aqueous fluid absorbent polymer. In the process, the fines are incorporated into the new polymer gel and become indistinguishable there from. The gel may then be comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The particulate may then be coated with a surface crosslinking agent and surface additives and heated for surface conversion.
    • 描述了一种用于将超吸收性聚合物细粒再循环到包括用苛性碱处理超吸收性聚合物细粒的方法和用于制备超吸收性聚合物凝胶的聚合步骤的方法。 该方法需要用苛性碱处理超吸收性聚合物细粒,然后与可聚合单体溶液混合,并聚合超吸收性聚合物细粒和单体的混合物以形成水性流体吸收聚合物。 在这个过程中,细粉被掺入到新的聚合物凝胶中,并且与之不能区分。 然后可以将凝胶粉碎成干燥的颗粒,然后在具有小于所需尺寸的细粉部分中分离成具有期望的最小粒度的部分。 然后可以用表面交联剂和表面添加剂涂覆颗粒,并加热以进行表面转化。
    • 5. 发明申请
    • RECYCLING SUPERABSORBENT POLYMER FINES
    • 回收超吸收聚合物
    • US20110121231A1
    • 2011-05-26
    • US13020898
    • 2011-02-04
    • Gonglu TianScott J. SmithJanet Pate-Linton
    • Gonglu TianScott J. SmithJanet Pate-Linton
    • B01J20/26
    • B01J20/26C08F265/04C08F265/06C08L51/003C08L2666/02C08L2666/04
    • A process is described for recycling superabsorbent polymer fines into a process that includes treating the superabsorbent polymer fines with caustic and a polymerization step for making the superabsorbent polymer gel. The process requires treating the superabsorbent polymer fines with a caustic, followed by mixture with polymerizable monomer solution, and polymerizing the mixture of the superabsorbent polymer fines and monomer to form the aqueous fluid absorbent polymer. In the process, the fines are incorporated into the new polymer gel and become indistinguishable there from. The gel may then be comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The particulate may then be coated with a surface crosslinking agent and surface additives and heated for surface conversion.
    • 描述了一种用于将超吸收性聚合物细粒再循环到包括用苛性碱处理超吸收性聚合物细粒的方法和用于制备超吸收性聚合物凝胶的聚合步骤的方法。 该方法需要用苛性碱处理超吸收性聚合物细粒,然后与可聚合单体溶液混合,并聚合超吸收性聚合物细粒和单体的混合物以形成水性流体吸收聚合物。 在这个过程中,细粉被掺入到新的聚合物凝胶中,并且与之不能区分。 然后可以将凝胶粉碎成干燥的颗粒,然后在具有小于所需尺寸的细粉部分中分离成具有期望的最小粒度的部分。 然后可以用表面交联剂和表面添加剂涂覆颗粒,并加热以进行表面转化。
    • 6. 发明申请
    • RECYCLING SUPERABSORBENT POLYMER FINES
    • 回收超吸收聚合物
    • US20100099781A1
    • 2010-04-22
    • US12256038
    • 2008-10-22
    • Gonglu TIANScott J. SmithJanet Pate-Linton
    • Gonglu TIANScott J. SmithJanet Pate-Linton
    • C08J11/16C08J11/04
    • B01J20/26C08F265/04C08F265/06C08L51/003C08L2666/02C08L2666/04
    • A process is described for recycling superabsorbent polymer fines into a process that includes treating the superabsorbent polymer fines with caustic and a polymerization step for making the superabsorbent polymer gel. The process requires treating the superabsorbent polymer fines with a caustic, followed by mixture with polymerizable monomer solution, and polymerizing the mixture of the superabsorbent polymer fines and monomer to form the aqueous fluid absorbent polymer. In the process, the fines are incorporated into the new polymer gel and become indistinguishable there from. The gel may then be comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The particulate may then be coated with a surface crosslinking agent and surface additives and heated for surface conversion.
    • 描述了一种用于将超吸收性聚合物细粒再循环到包括用苛性碱处理超吸收性聚合物细粒的方法和用于制备超吸收性聚合物凝胶的聚合步骤的方法。 该方法需要用苛性碱处理超吸收性聚合物细粒,然后与可聚合单体溶液混合,并聚合超吸收性聚合物细粒和单体的混合物以形成水性流体吸收聚合物。 在这个过程中,细粉被掺入到新的聚合物凝胶中,并且与之不能区分。 然后可以将凝胶粉碎成干燥的颗粒,然后在具有小于所需尺寸的细粉部分中分离成具有期望的最小粒度的部分。 然后可以用表面交联剂和表面添加剂涂覆颗粒,并加热以进行表面转化。