公开(公告)号：US4842691A

公开(公告)日：1989-06-27

申请号：US24030

申请日：1987-03-10

申请人： Masato Nakajima ,  Toshiaki Otsuki ,  Atsushi Ikeda

发明人： Masato Nakajima ,  Toshiaki Otsuki ,  Atsushi Ikeda

IPC分类号： C09F1/04 ,  D21H17/62

CPC分类号： D21H17/62 ,  C09F1/04

摘要： This invention provides a sizing agent (A) to be used in neutral range in papermaking, the sizing agent being characterized in that it is an aqueous dispersion of a reaction product prepared by reacting, in a specific proportion, (i) a rosin compound and (ii) at least one polyhydric alcohol selected from among a trihydric alcohol and a tetrahydric alcohol both consisting of carbon, hydrogen and oxygen, and a sizing method using the sizing agent (A) in neutral range at a pH of about 6 to about 9 in papermaking. And this invention further provides a sizing agent (B) to be used in neutral range in papermaking, the sizing agent being characterized in that it is an aqueous dispersion of a reaction product prepared by reacting, in a specific proportion, (i) a rosin compound, (ii) at least one polyhydric alcohol selected from among a trihydric alcohol and a tetrahydric alcohol both consisting of carbon, hydrogen and oxygen and (iii) a .alpha.,.beta.-unsaturated carboxylic acid derivative, and a sizing method using the sizing agent (B) in neutral range at a pH of about 6 to about 9 in papermaking.

摘要翻译： 本发明提供了一种在造纸中使用的上浆剂（A），上浆剂的特征在于它是以特定比例反应制备的反应产物的水分散体，（i）松香化合物和 （ii）选自由碳，氢和氧组成的三元醇和四元醇中的至少一种多元醇，以及在pH为约6至约9的中性范围内使用上浆剂（A）的施胶方法 在造纸。 本发明还提供了一种在造纸中使用的上浆剂（B），上浆剂的特征在于，其为通过使特定比例的（i）松香 化合物，（ii）至少一种选自三元醇和四元醇的多元醇，其均由碳，氢和氧组成，和（iii）α，β-不饱和羧酸衍生物和使用上浆剂的施胶方法 （B）在造纸中在约6至约9的pH值的中性范围内。

公开(公告)号：US4131911A

公开(公告)日：1978-12-26

申请号：US732138

申请日：1976-10-13

申请人： Nobuhiko Fujine ,  Masato Nakajima

发明人： Nobuhiko Fujine ,  Masato Nakajima

IPC分类号： H01L31/02 ,  H01L33/48 ,  H01S5/00 ,  H01L23/02

CPC分类号： H01L33/483 ,  H01L33/642 ,  H01L2924/0002 ,  H01L33/647

摘要： A hermetically sealed opto-electrical semiconductor device includes an opto-electrical semiconductor element centrally disposed in an envelope having at least two openings through which light beams are to pass, with flat plates made of a transparent material hermetically covering the respective openings perpendicularly to the directions of the light beams.

摘要翻译： 密封的光电半导体器件包括中心地设置在外壳中的光电半导体元件，该光电半导体元件具有光束将通过的至少两个开口，由透明材料制成的平板垂直于方向气密地覆盖相应的开口 的光束。