公开(公告)号：US5780519A

公开(公告)日：1998-07-14

申请号：US828332

申请日：1997-03-28

Applicant: Saburo Imoto

Inventor： Saburo Imoto

IPC: C08J9/28 ,  C08J9/30 ,  C08L97/00 ,  C08L97/02

CPC classification number: C08J9/28 ,  C08J9/30 ,  C08J2201/0504

Abstract: Lignocellulosic light weight molding products which are useful as heat insulator, shock absorber, sound absorber and so on and have open-celled foam-structure are mainly composed of lignocellulose that is able to use in not only fibrous shape but also other various shapes. They are at least composed of four components shown hereunder; (1) lignocellulose, (2) water soluble high polymer containing not less than two OH groups in a molecule and having the film properties of tensile strength 10 to 300 MPa and surface tension 30 to 65 mN/m in 0.4 wt % aqueous solution at 20.degree. C., (3) water soluble high polymer containing not less than two carboxyl groups in a molecule and/or anionic surfactant, and (4) high polymer having the film properties of tensile strength 0.1 to 10 MPa and ultimate elongation 200 to 2000%, 2nd transition point 30.degree. to 40.degree. C. and cohesion energy density 30 to 200 cal/cc.

Abstract translation: 可用作隔热材料，减震器，吸声器等，具有开孔泡沫结构的木质纤维素轻质成型产品主要由不仅纤维形状而且可以用于其它各种形状的木质纤维素组成。 它们至少由以下所示的四个组成部分组成; （1）木​​质纤维素，（2）在分子中含有不少于两个OH基的水溶性高分子，并且在0.4重量％水溶液中具有10-300MPa的拉伸强度和30至65mN / m的表面张力 20℃，（3）分子中含有不少于2个羧基的水溶性高分子和/或阴离子表面活性剂，（4）具有拉伸强度为0.1〜10MPa，极限伸长率为200〜 2000％，第二转变点30〜40℃，内聚能密度30〜200cal / cc。