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1. 发明申请

WO2003066560A1 STABILIZED POWDERED FORMALDEHYDE 审中-公开
标题翻译：稳定的粉末形式
公开(公告)号：WO2003066560A1
公开(公告)日：2003-08-14
申请号：PCT/US2003/003381
申请日：2003-02-05
申请人： BIESECKER, James, L.
发明人： BIESECKER, James, L.
IPC分类号： C07C47/02
CPC分类号： G01N1/30 , C07C45/86 , C07C47/04 , C08L61/02 , G01N2001/305 , G01N2001/307 , Y10T436/200833 , Y10T436/202499
摘要： According to an aspect of the invention, a polymerized form of formaldehyde is available in granular form containing a polymerized form of formaldehyde, such as paraformaldehyde, a buffer, such as sodium phosphate dibasic anhydrous, and a stabilizer, such as hydroxymethyl cellulose, or hydroxypropyl methyl cellulose. When added to an aqueous solvent, the paraformaldehyde can dissolve in alkaline solution, and depolymerizes into a formaldehyde solution containing a stabilizer. Optionally a second member of the buffer pair or another buffer or pH adjuster can be used. The stabilized depolymerized formaldehyde solution is then ready for use, or can be modified by addition of other substances, such as sodium phosphate monobasic monohydrate. Additionally, an additional buffer may be included in the granular mixture to increase the rate at which the solid dissolves and depolymerizes.
摘要翻译：根据本发明的一个方面，甲醛的聚合形式可以以含有聚合形式的甲醛的形式获得，例如多聚甲醛，缓冲剂如无水磷酸氢二钠，以及稳定剂如羟甲基纤维素或羟丙基甲基纤维素。当加入到水性溶剂中时，多聚甲醛可溶于碱性溶液中，并解聚成含有稳定剂的甲醛溶液。可选地，可以使用缓冲液对的另一个成员或另一缓冲液或pH调节剂。稳定的解聚甲醛溶液即可使用，也可以通过加入其它物质如磷酸二氢钠一水合物进行改性。此外，可以在颗粒混合物中包含另外的缓冲液以增加固体溶解和解聚的速率。

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