Method of preparing a lignocellulosic material for the manufacture of a finished product
    1.
    发明授权
    Method of preparing a lignocellulosic material for the manufacture of a finished product 失效
    制备用于制造成品的木质纤维素材料的方法

    公开(公告)号:US06451153B1

    公开(公告)日:2002-09-17

    申请号:US08849008

    申请日:1997-07-15

    IPC分类号: B32B3100

    摘要: A method of preparing particles of a lignocellulosic material for the manufacture of a finished product, such as a particle board, includes the steps of chemically modifying the lignocellulosic material by impregnating the lignocellulosic material with a suitable anhydride in a non-aqueous solvent; applying to the particles of lignocellulosic material an adhesion promoter to promote the adherence of a thermoplastic resin to the surfaces of the particles of lignocellulosic material; and applying to the particles a thermoplastic resin in dry powder form, so that after the application of the adhesion promoter, the thermoplastic resin adheres to the surfaces of the particles of lignocellulosic material, the thermoplastic resin having been surfaced modified by irradiation or by fluorination; and removing any solvent present.

    摘要翻译: 制备木质纤维素材料颗粒的方法,用于制造最终产品如颗粒板,包括通过用合适的酸酐在非水溶剂中浸渍木质纤维素材料来化学改性木质纤维素材料的步骤; 向木质纤维素材料的颗粒施加粘合促进剂以促进热塑性树脂粘附到木质纤维素材料颗粒的表面; 并且向颗粒施加干粉形式的热塑性树脂,使得在施加粘合促进剂之后,热塑性树脂粘附到木质纤维素材料颗粒的表面,已经通过照射或通过氟化而表面改性的热塑性树脂; 并除去存在的任何溶剂。

    Impregnation of a lignocellulosic material
    4.
    发明授权
    Impregnation of a lignocellulosic material 失效
    浸渍木质纤维素材料

    公开(公告)号:US06503638B1

    公开(公告)日:2003-01-07

    申请号:US09646418

    申请日:2000-10-27

    IPC分类号: B32B2742

    摘要: A composition for impregnation of a lignocellulosic material such as wood or wood particles, comprises a high boiling point tar acid or a pitch derived from coal; a solvent for the tar acid or pitch selected from a low carbon alcohol, an aceotrope of a low carbon alcohol and another solvent, and a mixture of a lower carbon alcohol and water; a phenol formaldehyde resole resin; an acid catalyst for the phenol formaldehyde resole resin; and preferably a formaldehyde donor or a precursor thereof. There is also disclosed a method of preparing a finished product from a lignocellulosic material by using the impregnating composition.

    摘要翻译: 用于浸渍木质纤维素材料如木材或木材颗粒的组合物包括高沸点焦油酸或源自煤的沥青; 选自低碳醇,低碳醇的乙酸酯和另一种溶剂的焦油酸或沥青的溶剂,以及低碳醇和水的混合物; 苯酚甲醛树脂; 苯酚甲醛树脂的酸催化剂; 优选甲醛供体或其前体。 还公开了通过使用浸渍组合物从木质纤维素材料制备成品的方法。

    Process for producing a modified lignocellulosic material
    5.
    发明授权
    Process for producing a modified lignocellulosic material 失效
    生产改性木质纤维素材料的方法

    公开(公告)号:US06406749B1

    公开(公告)日:2002-06-18

    申请号:US09646412

    申请日:2000-11-13

    IPC分类号: B05D706

    摘要: A process of chemically modifying wood by impregnating the wood, under vacuum, with ammonia gas; after removal of residual ammonia, and while under pressure, impregnating the ammonia gas impregnated wood with an impregnating composition containing dicarboxylic or tricarboxylic anhydride, partly or fully saponified polyvinyl alcohol and water. The impregnating composition may further and, preferably, include a water-soluble boron compound, such as sodium borate. In the latter case, the boron is resistant to leaching.

    摘要翻译: 通过在真空下用氨气浸渍木材来化学改性木材的方法; 在除去残留氨后,在压力下,用含有二羧酸或三羧酸酐的浸渍组合物浸渍氨气浸渍的木材,部分或完全皂化的聚乙烯醇和水。 浸渍组合物可以进一步优选包括水溶性硼化合物,例如硼酸钠。 在后一种情况下,硼耐浸出。

    Method of applying a powder coating to a length of a lignocellulosic
material
    6.
    发明授权
    Method of applying a powder coating to a length of a lignocellulosic material 失效
    将粉末涂料施用于一定长度的木质纤维素材料的方法

    公开(公告)号:US6146710A

    公开(公告)日:2000-11-14

    申请号:US194401

    申请日:1998-11-30

    摘要: A method of applying a powder coating to a length of a lignocellulosic material. The method comprises impregnating the length of lignocellulosic material with an impregnating composition (i) a dicarboxylic anhydride or a tricarboxylic anhydride dissolved in non-aqueous solvent; (ii) an isocyanate thermosetting resin dissolved in a non-aqueous solvent; or (iii) a combination of (i) or (ii). Any excess impregnating composition is then removed from the lignocellulosic material. Non-aqueous solvent is also removed and the impregnated lignocellulosic material is placed in either an electrostatic field or in a fluidized bed and a powder coating composition is applied thereto so that the powder coating composition adheres to the lignocellulosic material. The impregnated and coated lignocellulosic material is then subjected to elevated temperatures to polymerise and/or cross-link the resin and cure the powder coating composition to form a powder coating. The length of lignocellulosic material may be a sheet of paper, wood or wood veneer. A typical solvent is dichloromethane or liquid carbon dioxide.

    摘要翻译: PCT No.PCT / GB97 / 01464 Sec。 371日期:1998年11月30日 102(e)1998年11月30日日期PCT提交1997年5月29日PCT公布。 第WO97 / 45591号公报 日期1997年12月4日一种将粉末涂料施用于一定长度的木质纤维素材料的方法。 该方法包括用浸渍组合物(i)溶解在非水溶剂中的二羧酸酐或三羧酸酐浸渍长度的木质纤维素材料; (ii)溶解在非水溶剂中的异氰酸酯热固性树脂; 或(iii)(i)或(ii)的组合。 然后从木质纤维素材料中除去任何多余的浸渍组合物。 还除去非水溶剂,将浸渍的木质纤维素材料置于静电场或流化床中,并向其施加粉末涂料组合物,使得粉末涂料组合物粘附到木质纤维素材料上。 然后将浸渍和涂覆的木质纤维素材料进行升高的温度以使树脂聚合和/或交联并固化粉末涂料组合物以形成粉末涂料。 木质纤维素材料的长度可以是一张纸,木材或木皮单板。 典型的溶剂是二氯甲烷或液体二氧化碳。

    Method of preparing a sheet of a lignocellulosic material for the
manufacture of a finished product and method of manufacture of a
finished product
    7.
    发明授权
    Method of preparing a sheet of a lignocellulosic material for the manufacture of a finished product and method of manufacture of a finished product 失效
    制备用于制造成品的木质纤维素材料片材和制造成品的方法

    公开(公告)号:US6123795A

    公开(公告)日:2000-09-26

    申请号:US125192

    申请日:1998-11-20

    摘要: A method of preparing a sheet of a lignocellulosic material such as paper for the manufacture of a finished product, includes the steps of impregnating the sheet with an impregnating composition comprising a composition for the chemical modification of the lignocellulosic material containing a dicarboxylic anhydride or a tricarboxylic anhydride dissolved in a suitable non-aqueous solvent, and a composition for resinating the lignocellulosic material containing an isocyanate thermosetting resin dissolved in a suitable non-aqueous solvent. Thereafter any excess of the impregnating composition is removed from the impregnated lignocellulosic material and the non-aqueous solvent or solvents are removed. Subsequently the sheet of lignocellulosic material so treated may be used in a method of forming an article by adhering a sheet so treated to a second sheet optionally so treated, with a suitable adhesive material. The result is a product which may be used as a building board or the like.

    摘要翻译: PCT No.PCT / GB97 / 00440 Sec。 371日期:1998年11月20日 102(e)1998年11月20日日期PCT 1997年2月14日提交PCT公布。 出版物WO97 / 32074 日期1997年9月4日制备木质纤维素材料如用于制造成品的纸张的方法包括以下步骤:用含浸组合物浸渍片材,所述浸渍组合物包含用于木质纤维素材料的化学改性的组合物, 二羧酸酐或溶解在合适的非水溶剂中的三羧酸酐,以及用于树脂化含有溶解在合适的非水溶剂中的异氰酸酯热固性树脂的木质纤维素材料的组合物。 此后,从浸渍的木质纤维素材料中除去任何过量的浸渍组合物,并除去非水溶剂或溶剂。 随后,如此处理的木质纤维素材料片可以用于通过将合适的粘合剂材料将经过处理的片材任选地如此处理的第二片材粘合而形成制品的方法。 结果是可以用作建筑板等的产品。