Method for producing synthetic polymerizates with a very low residual monomer content, products produced according to this method and the use thereof
    1.
    发明授权
    Method for producing synthetic polymerizates with a very low residual monomer content, products produced according to this method and the use thereof 有权
    制备具有非常低残留单体含量的合成聚合物的方法,根据该方法生产的产品及其用途

    公开(公告)号:US06660819B2

    公开(公告)日:2003-12-09

    申请号:US10260440

    申请日:2002-10-01

    IPC分类号: C08F200

    CPC分类号: C08F6/001 C08F6/006 C08L33/00

    摘要: The invention relates to a process for producing water-soluble or water-swellable polymer products with low levels of residual monomers using acrylic acid and/or acrylic acid derivatives, which process is characterized by adding a nitrogen compound to the monomer solution to be polymerized and subsequent heating of the polymer product at temperatures of from 120 to 240° C. The polymers produced accordingly are suitable for use as flocculants, dispersants and absorbents.

    摘要翻译: 本发明涉及使用丙烯酸和/或丙烯酸衍生物制备具有低水平残留单体的水溶性或水溶胀性聚合物产物的方法,该方法的特征在于向待聚合的单体溶液中加入氮化合物, 随后在120-240℃的温度下加热聚合物产物。因此生产的聚合物适合用作絮凝剂,分散剂和吸收剂。

    Method for producing synthetic polymerizates with very low residual monomer content
    2.
    发明授权
    Method for producing synthetic polymerizates with very low residual monomer content 有权
    制备具有非常低残留单体含量的合成聚合物的方法

    公开(公告)号:US06552141B1

    公开(公告)日:2003-04-22

    申请号:US09554098

    申请日:2000-06-14

    IPC分类号: C08J400

    CPC分类号: C08F6/001 C08F6/006 C08L33/00

    摘要: The invention relates to a method for producing water-soluble or water-swellable polymerizates with a low residual monomer content from acrylic acid and/or acrylic acid derivatives. The method is characterized by the addition of a nitrogen compound to the monomer solution to be polymerized, an in that the polymerizate is subsequently heated at temperature of 120 to 240° C. The polymerizates produced according to the inventive method are suitable as flocculants, dispersants and absorbers.

    摘要翻译: 本发明涉及一种由丙烯酸和/或丙烯酸衍生物制备具有低残留单体含量的水溶性或水溶胀性聚合物的方法。 该方法的特征在于向待聚合的单体溶液中加入氮化合物,其中聚合物随后在120至240℃的温度下加热。根据本发明方法制备的聚合物适合作为絮凝剂,分散剂 和吸收体。

    Method for producing water-soluble or water-swellable polymerizates with a very low residual monomer content, products produced according to this method and the use thereof
    3.
    发明授权
    Method for producing water-soluble or water-swellable polymerizates with a very low residual monomer content, products produced according to this method and the use thereof 失效
    制备具有非常低残留单体含量的水溶性或水溶胀性聚合物的方法,根据该方法生产的产品及其用途

    公开(公告)号:US07030199B1

    公开(公告)日:2006-04-18

    申请号:US09554090

    申请日:1998-11-13

    IPC分类号: C08F2/00

    CPC分类号: C08F6/001 C08F6/006 C08L33/00

    摘要: The invention relates to a process for producing water-soluble or water-swellable polymer products from acrylic acid and/or acrylic acid derivatives partially or completely neutralized with nitrogen compounds and with exceedingly low levels of residual monomers, which process is characterized by subsequent heating of the polymer product at temperatures of from 120 to 240° C. The polymers produced accordingly are suitable for use as flocculants, dispersants and absorbers.

    摘要翻译: 本发明涉及由用氮化合物部分或完全中和的丙烯酸和/或丙烯酸衍生物制备水溶性或水溶胀性聚合物产物的方法,该方法的特征在于随后加热 聚合物产物的温度为120-240℃。因此生产的聚合物适合用作絮凝剂,分散剂和吸收剂。

    Absorbents for blood and serous body fluids
    4.
    发明授权
    Absorbents for blood and serous body fluids 失效
    血液和浆液体液的吸收剂

    公开(公告)号:US4693713A

    公开(公告)日:1987-09-15

    申请号:US928573

    申请日:1986-11-10

    CPC分类号: A61L15/60 Y10S977/905

    摘要: The invention concerns an absorbent for blood and serous body fluids consisting of at least two components, A and B, whereby component A is a crosslinked synthetic or natural polymer or copolymer, and component B is an organic and/or inorganic compound which is water-soluble and solid at normal temperature. The absorbent contains 25 to 98 weight % of component A and 2 to 75 weight % of component B. The invention, moveover, concerns the use of the said absorbent for absorption and/or retention of blood and serous body fluids, in particular in absorbent throwaway articles for surgical, medical and hygienic purposes.

    摘要翻译: PCT No.PCT / DE82 / 00146 Sec。 371日期1983年3月10日 102(e)1983年3月10日日期PCT提交1982年7月10日PCT公布。 公开号WO83 / 00289 PCT 日本1983年2月3日。本发明涉及由至少两种组分A和B组成的血液和浆液体液的吸收剂,其中组分A是交联的合成或天然聚合物或共聚物,组分B是有机和/ 或在常温下为水溶性和固体的无机化合物。 吸收剂含有25至98重量%的组分A和2至75重量%的组分B.本发明的移动涉及使用所述吸收剂以吸收和/或保留血液和浆液体液,特别是吸收 用于手术,医疗和卫生目的的一次性物品。

    Cross-linked synthetic polymers having a porous structure, a high
absorption rate for water, aqueous solutions and body fluids, a process
for their production and their use in the absorption and/or retention
of water and/or aqueous liquids
    8.
    发明授权
    Cross-linked synthetic polymers having a porous structure, a high absorption rate for water, aqueous solutions and body fluids, a process for their production and their use in the absorption and/or retention of water and/or aqueous liquids 失效
    具有多孔结构,水,水溶液和体液的高吸收速率的交联合成聚合物,其制备方法及其在吸收和/或保持水和/或水性液体中的用途

    公开(公告)号:US5856370A

    公开(公告)日:1999-01-05

    申请号:US663117

    申请日:1996-06-24

    申请人: Miroslav Chmelir

    发明人: Miroslav Chmelir

    摘要: The present invention relates to cross-linked synthetic polymers based on acrylic acid and its derivatives, which have a high absorption capacity and an improved absorption rate for water, aqueous solutions and body fluids, to a process for their production by radical polymerization under such conditions that polymers are obtained which have a porous structure and a swelling degree-dependent particle density so that the polymer particles are floatable in water or aqueous liquids. The present invention further relates to the use of these polymers for the absorption and/or retention of water and for the release of water and/or an active substance solution to a surrounding medium. The porous structure of the polymers is formed by nitrogen dispersed in the polymer, with at least one azo compound being added to the aqueous monomer solution as polymerization initiator and blowing agent, which azo compound has a half-time of at least 10 hours at a temperature of 30.degree. to 120.degree. C.

    摘要翻译: PCT No.PCT / EP94 / 04221 Sec。 371日期1996年6月24日 102(e)1996年6月24日PCT 1994年12月19日PCT PCT。 公开号WO95 / 17455 日期:1995年6月29日本发明涉及基于丙烯酸及其衍生物的交联合成聚合物,其具有高的吸收能力和改善的水,水溶液和体液的吸收速率, 在获得具有多孔结构和溶胀度依赖性颗粒密度的聚合物的条件下进行自由基聚合,使得聚合物颗粒在水或水性液体中可漂浮。 本发明还涉及这些聚合物用于吸收和/或保留水和用于向周围介质释放水和/或活性物质溶液的用途。 聚合物的多孔结构由分散在聚合物中的氮形成,其中至少一种偶氮化合物作为聚合引发剂和发泡剂加入到单体水溶液中,该偶氮化合物在一次反应中具有至少10小时的半衰期 温度在30〜120℃

    Process for the production of water-absorbing polymer material with
incorporated water-soluble substances and its use for the absorption
and/or subsequent release of water or aqueous solutions
    9.
    发明授权
    Process for the production of water-absorbing polymer material with incorporated water-soluble substances and its use for the absorption and/or subsequent release of water or aqueous solutions 失效
    生产具有并入水溶性物质的吸水性聚合物材料的方法及其用于吸收和/或随后释放水或水溶液的用途

    公开(公告)号:US5264471A

    公开(公告)日:1993-11-23

    申请号:US761073

    申请日:1991-09-17

    申请人: Miroslav Chmelir

    发明人: Miroslav Chmelir

    摘要: The invention relates to a process for the production of absorbers for water, aqueous solutions and body liquids, the absorbers consisting of at least two components A and B, whereby component A is at least a water-swellable synthetic polymer or copolymer, and component B is at least a natural or synthetic compound being present at normal temperature as a pourable powder which is highly or at least partially soluble, in water, or as a liquid. The present invention is characterized by the fact that component B is added in the form of a powder, a liquid or as a solution to component A during the end phase of the production process thereof after a polymer reaction degree of 90%, preferably 95% is attained, that is is mixed with the polymer gel of component A and, in order to obtain a powdery, pourable end product, is dried, if necessary, and ground. The invention further relates to the use of said absorbers for the absorption and/or retention of water and/or aqueous solutions and for the subsequent controlled release of water and the substances contained in the swollen polymer gel and soluble in the aqueous medium (component B) to other bodies, preferably to plants, as nutrients for various cultures, and in the controlled dosage of nutrients and drugs.

    摘要翻译: 本发明涉及一种用于生产水,水溶液和体液的吸收剂的方法,所述吸收剂由至少两种组分A和B组成,其中组分A至少是水溶胀性合成聚合物或共聚物,组分B 至少是在常温下作为在水中或作为液体高度或至少部分可溶的可倾倒粉末存在的天然或合成化合物。 本发明的特征在于,在聚合物反应度为90%,优选95%之后,在其制备方法的结束阶段,将组分B以粉末,液体或组分A的形式加入到组分A中, 即,将其与组分A的聚合物凝胶混合,并且为了获得粉末状可倾倒的最终产物,如果需要,将其干燥并研磨。 本发明还涉及所述吸收剂用于吸收和/或保留水和/或水溶液以及随后控制释放水和溶解在聚合物凝胶中并溶于水性介质(组分B )到其他身体,优选植物,作为各种培养物的营养物质,以及受控剂量的营养物和药物。