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    • 8. 发明授权
    • Polymer networks, process for producing same, and products made therefrom
    • 聚合物网络,其生产方法以及由其制成的产品
    • US08258200B2
    • 2012-09-04
    • US12792644
    • 2010-06-02
    • Joseph P. KennedyUmmadisetty Subramanyam
    • Joseph P. KennedyUmmadisetty Subramanyam
    • C08G77/442
    • G02B1/043C08G18/289C08G18/6212C08G18/755C08G77/388C08G77/458C08J3/28C08J2383/10C08J2387/00G02B1/04C08L83/10C08L75/00
    • The present invention relates to the production of copolymer networks, or co-networks, and to methods for preparing copolymer or co-networks. Furthermore, the present invention relates to products and/or films made from the copolymer and/or co-networks produced in accordance with the synthesis methods of the present invention. Additionally, the present invention relates to crosslinked copolymer and/or co-networks comprising at least one hydrophilic segment and at least one hydrophobic segment. In one embodiment, the hydrophilic segments include at least one poly(vinyl alcohol) (e.g., a poly(vinyl alcohol) modified with acryl amide groups) and the hydrophobic segments include at least one polysiloxane having at least one terminal —OH group (e.g., polydimethylsiloxane (PDMS)). In another embodiment, the copolymer and/or co-networks of the present invention are optically clear and highly oxophilic.
    • 本发明涉及共聚物网络或共网络的制备,以及制备共聚物或共网络的方法。 此外,本发明涉及由根据本发明的合成方法制备的共聚物和/或共网络制备的产品和/或膜。 另外,本发明涉及包含至少一个亲水链段和至少一个疏水链段的交联共聚物和/或共网络。 在一个实施方案中,亲水性链段包括至少一种聚(乙烯醇)(例如,用丙烯酰胺基团改性的聚(乙烯醇)),并且疏水链段包括至少一个具有至少一个末端-OH基团的聚硅氧烷(例如 ,聚二甲基硅氧烷(PDMS))。 在另一个实施方案中,本发明的共聚物和/或共网络是光学透明且高亲氧性的。
    • 9. 发明授权
    • Polyvinyl alcohol having 1,2-glycol bond in side chain and process for preparing the same
    • 侧链中具有1,2-二醇键的聚乙烯醇及其制备方法
    • US07928166B2
    • 2011-04-19
    • US11573961
    • 2004-08-18
    • Mitsuo Shibutani
    • Mitsuo Shibutani
    • C08F8/02C08F22/26
    • C08F8/12C08F2800/10C08G18/6212C08G18/7671C08K3/26C08L29/04C09J125/10C09J175/04Y10T442/60C08F218/08
    • There is disclosed a polyvinyl alcohol having a 1,2-glycol bond in a side chain, and a process for preparing the polyvinyl alcolnol wherein there is no generation of dimethyl carbonate hence no need of a process of eliminating dimethyl carbonate in the recovering process of waste liquid after hydrolysis. Also, even when an introduction amount of 1,2-glycol bonds is increased, there is no deterioration of solubility in a hydrolyzing solution (methanol) of a copolymer (paste) before hydrolysis. Further, water-insolubility is not lowered even in experiencing thermal history. Specifically, there is provided a polyvinyl alcohol having a 1,2-glycol bond in a side chain obtained by hydrolyzing a copolymer of a vinyl ester monomer and a compound shown in the formula (1) wherein the hydrolysis degree of the polyvinyl alcohol is at least 60% by mol.
    • 公开了侧链中具有1,2-二醇键的聚乙烯醇,以及制造聚乙烯醇醇的方法,其中不产生碳酸二甲酯,因此不需要在回收方法中除去碳酸二甲酯的方法 水解后废液。 此外,即使1,2-二醇键的引入量增加,水解前的共聚物(糊剂)的水解溶液(甲醇)中的溶解性也不会降低。 此外,即使在经历热历史时,水不溶性也不降低。 具体地说,提供了在侧链中具有1,2-乙二醇键的聚乙烯醇,其通过水解乙烯基酯单体和式(1)所示的化合物的共聚物而获得,其中聚乙烯醇的水解度为 至少60摩尔%。