党员公开承诺书专利名称:ACETONEEFORMALDEHYDEERESORCINOL RESIN COMPOSITION AND ADHESIVE
OBTAINED FROM ITS COMPOSITION
发明人:EMU FURANKU GIRAAN溶解性
申请号:JP2906676
申请日:19760317
公开号:JPS51116894A
公开日:
19761014
专利内容由知识产权出版社提供
含钾食物摘要:Disclod are liquid, hydrophilic, 2-stage resin compositions produced by reaction of (1) an acetone-formaldehyde resin, (2) free formaldehyde, and (3) resorcinol in an aqueous solution at elevated temperatures at least until substantially all the free formaldehyde is consumed. The molar quantities of chemically combined acetone, A, and formaldehyde, F. sub.c, in the acetone-formaldehyde resin and the molar quantities of free formaldehyde, F.sub.f, and resorcinol, R, satisfy the equations F.sub.c /A = 1.5 to 3.0, F.sub.f /R = 0.2 to 1.2 and R/A = 3.0 to 5.0. Also disclod are adhesives prepared by combining such resin compositions with a curing agent such as formaldehyde. The adhesives cure rapidly to an insoluble infusible state in the abnce of applied heat.
雷公虫>温泉游申请人:UEIYAHAUSAA CO
新年的英语单词
圆孔方木更多信息请下载全文后查看
>创业培训计划书