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    • 1. 发明授权
    • Polyanhydride crosslinked fibrous cellulosic products and process for
their preparation
    • 聚酐交联纤维素纤维制品及其制备方法
    • US5981739A
    • 1999-11-09
    • US926911
    • 1997-09-10
    • Ronald L. AndersonWendell W. CattronVincent F. Smith, Jr.David J. Fenoglio
    • Ronald L. AndersonWendell W. CattronVincent F. Smith, Jr.David J. Fenoglio
    • C08B15/10C08H8/00D06M13/17D06M13/184D06M13/224D06M15/53D21C9/00C07C63/307C08B3/00
    • C08H8/00C08B15/10D06M13/17D06M13/1845D06M13/224D06M15/53D21C9/005D06M2101/06
    • A process for preparation of crosslinked cellulosic products containing at least 30 wt. % cellulosic fibers and the polyanhydride crosslinked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a polycarboxylic acid formed by hydrolysis of a polyanhydride of the structure ##STR1## which comprises the reaction product of trimellitic anhydride and a diol in the mole ratio of from about 2.0:0.9 to about 2.0:1.1, wherein R is selected from the group consisting of alkyl, alkylene and cycloalkylene moieties of up to 12 carbon atoms and ethylene oxide and propylene oxide moieties of molecular weight up to about 6000, wherein said cellulosic material is impregnated with an aqueous solution of said polyanhydride, dried, and heated to a temperature of from about 120.degree. C. to about 200.degree. C. at ambient pressure to obtain crosslinking of the cellulose fibers with the said polyanhydride by an ester bond between the hydroxyl groups of the cellulosic fibers and the anhydride groups of the anhydride. Fibrous cellulosic products are readily repulped paper with improved wet strength, pulp fluff with improved wet resilience, wood oriented strand board with improved moisture resistance, and textile products with improved durable press and reduced shrink characteristics.
    • 一种制备交联纤维素产品的方法,其包含至少30wt。 %的纤维素纤维和由此产生的聚酐交联的纤维素产品,其中纤维素材料用多元羧酸的水溶液处理,所述多元羧酸的水溶液是通过水解结构的聚酐形成的,该聚酐包含偏苯三酸酐和二醇的反应产物的摩尔比 约2.0:0.9至约2.0:1.1,其中R选自具有至多12个碳原子的烷基,亚烷基和亚环烷基部分以及分子量高达约6000的环氧乙烷和环氧丙烷部分,其中所述纤维素 材料用所述聚酐的水溶液浸渍,干燥并在环境压力下加热至约120℃至约200℃的温度,以使纤维素纤维与所述聚酐通过酯键之间的酯键进行交联 纤维素纤维的羟基和酸酐的酸酐基团。 纤维素纤维素产品易于重新制备具有改进的湿强度的纸浆,具有改善的湿回弹性的纸浆绒毛,具有改善的耐湿性的木材定向刨花板以及具有改进的耐久压制和降低的收缩特性的纺织产品。
    • 2. 发明授权
    • Polyanhydride crosslinked fibrous cellulosic products and process for their preparation
    • 聚酐交联纤维素纤维制品及其制备方法
    • US06248879B1
    • 2001-06-19
    • US09373684
    • 1999-08-13
    • Ronald L. AndersonWendell W. CattronVincent F. Smith, Jr.David J. Fenoglio
    • Ronald L. AndersonWendell W. CattronVincent F. Smith, Jr.David J. Fenoglio
    • C08B1510
    • C08H8/00C08B15/10D06M13/17D06M13/1845D06M13/224D06M15/53D06M2101/06D21C9/005
    • A process for preparation of crosslinked cellulosic products containing at least 30 wt. % cellulosic fibers and the polyanhydride crosslinked cellulosic products resulting therefrom wherein a cellulosic material is treated with an aqueous solution of a polycarboxylic acid formed by hydrolysis of a polyanhydride of the structure which comprises the reaction product of trimellitic anhydride and a diol in the mole ratio of from about 2.0:0.9 to about 2.0:1.1, wherein R is selected from the group consisting of alkyl, alkylene and cycloalkylene moieties of up to 12 carbon atoms and ethylene oxide and propylene oxide moieties of molecular weight up to about 6000, wherein said cellulosic material is impregnated with an aqueous solution of said polyanhydride, dried, and heated to a temperature of from about 120° C. to about 200° C. at ambient pressure to obtain crosslinking of the cellulose fibers with the said polyanhydride by an ester bond between the hydroxyl groups of the cellulosic fibers and the anhydride groups of the anhydride. Fibrous cellulosic products are readily repulped paper with improved wet strength, pulp fluff with improved wet resilience, wood oriented strand board with improved moisture resistance, and textile products with improved durable press and reduced shrink characteristics.
    • 一种制备交联纤维素产品的方法,其包含至少30wt。 %的纤维素纤维和由此产生的聚酐交联的纤维素产品,其中纤维素材料用多元羧酸的水溶液处理,所述多元羧酸的水溶液是通过水解包含偏苯三酸酐和二醇的反应产物的结构的聚酐形成的, 约2.0:0.9至约2.0:1.1,其中R选自最高达12个碳原子的烷基,亚烷基和亚环烷基部分,分子量高达约6000的环氧乙烷和环氧丙烷部分,其中所述纤维素材料 用所述聚酐的水溶液浸渍,干燥并在环境压力下加热至约120℃至约200℃的温度,以通过所述聚酐之间的酯键使纤维素纤维与所述聚酐交联 纤维素纤维的羟基和酸酐的酸酐基团。 纤维素纤维素产品易于重新制备具有改进的湿强度的纸浆,具有改善的湿回弹性的纸浆绒毛,具有改善的耐湿性的木材定向刨花板以及具有改进的耐久压制和降低的收缩特性的纺织产品。
    • 8. 发明授权
    • Machine for orientating and delivering tapered articles
    • 定向和递送锥形物品的机器
    • US4685552A
    • 1987-08-11
    • US771498
    • 1985-08-30
    • Ronald L. AndersonHarry T. Kessler, Jr.
    • Ronald L. AndersonHarry T. Kessler, Jr.
    • B65G47/14B65G47/24
    • B65G47/1471
    • A conveyor with reciprocating flights elevates tapered articles to an elevated discharge point. Conveyor flights have powered elements thereon to move articles lengthwise of the flight into endwise abutment with a flight mounted stop. The conveyor has discharge flights delivering singular articles to cooperating oscillating and pinch plate components which serve to detain the larger end of the article to tip same for subsequent endwise contact of an article end with a transversely running belt surface which contributes to article small end first orientation. A reciprocating surface serves to position the articles in mutual alignment for subsequent simultaneous delivery of the articles to a conveyor for further article processing.
    • 具有往复运动的输送机将锥形物品升高到升高的排放点。 输送机航行部件上具有动力元件,以将飞行物的纵向移动成与飞行安装的止挡件成直角邻接。 输送机具有将单个物品输送到配合的振荡和夹紧板部件的排放螺纹,这些部件用于将制品的较大端部保持在顶端,以使物品端部与横向运动的带表面随后的端部接触,这有助于制品的小端第一取向 。 往复运动的表面用于将物品相互对准地定位,以便随后将物品同时传送到输送机用于进一步的物品处理。