专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20030119672A1 Bioagent compositions for plant care 审中-公开
标题翻译：用于植物护理的生物标签组合物
公开(公告)号：US20030119672A1
公开(公告)日：2003-06-26
申请号：US10292233
申请日：2002-11-12
申请人： The Procter & Gamble Company
发明人： Henryk Struszczyk , Antoni Niekraszewicz , Henryk Pospieszny , Alojzy Urbanowski , Maria Wisniewska-Wrona , Magdalena Kucharska
IPC分类号： A01N043/02
CPC分类号： A01N43/16 , C08B37/003 , C08L5/08
摘要： Disclosed are bioagent compositions for plant care which can be used for treatment of plants and seeds. Such treatment serves to inhibit the activity of plant pathogens against the treated plants, stimulate natural plant immunity against such pathogens and provides plant growth biostimulation. The compositions comprise a chitosan polymer which can either be in the form of particles of microcrystalline chitosan which are in a composition of pH greater than 6.9, or in the form of a chitosan salt gel which are in a composition of pH of from 5.0 to 6.9. In either form, the chitosan polymer has specified molecular weight, polydispersity degree and degree of deacetylation characteristics. Preferably the chitosan polymer has a bimodal molecular weight distribution and contains a fraction of water-soluble oligoaminocarbohydrates. The characteristics of the chitosan polymer used in the compositions are obtained by the step-wise neutralization of, and chitosan preciptation from, acid solutions of chitosan under controlled conditions.
摘要翻译：公开了可用于植物和种子的处理的用于植物护理的生物制剂组合物。这种处理用于抑制植物病原体对待处理的植物的活性，刺激对这种病原体的天然植物免疫，并提供植物生长生物刺激。所述组合物包含壳聚糖聚合物，所述壳聚糖聚合物可以是pH大于6.9的组合物或壳聚糖盐凝胶形式的微晶壳聚糖颗粒形式，所述组合物的pH为5.0至6.9 。在任一种形式中，壳聚糖聚合物具有特定的分子量，多分散度和脱乙酰化特性。优选地，壳聚糖聚合物具有双峰分子量分布并且含有一部分水溶性寡氨基碳水化合物。组合物中使用的壳聚糖聚合物的特征是通过在受控条件下从脱乙酰壳多糖的酸溶液中逐步中和脱乙酰壳多糖获得。

2. 发明申请

US20030057159A1 Process for preparing chitosan particles 失效
标题翻译：制备壳聚糖颗粒的方法
公开(公告)号：US20030057159A1
公开(公告)日：2003-03-27
申请号：US10278534
申请日：2002-10-23
申请人： The Procter & Gamble Company
发明人： Henryk Struszczyk , Antoni Niekraszewicz , Magdalena Kucharska , Alojzy Urbanowski , Maria Wisniewska-Wrona
IPC分类号： C02F001/52
CPC分类号： C08J3/12 , A01N43/16 , C08B37/003 , C08J2305/08 , C08L5/08
摘要： Disclosed is a process for producing particles of the modified carbohydrate polymer chitosan. Such chitosan particles are nullactivatednull as a consequence of the specific steps used in the process. The process involves precipitation of dissolved chitosan from an acid solution thereof by the step-wise addition of neutralizing agent to the solution. A partial neutralization is carried out under shear agitation to form a continuous gel phase having a pH within the range of 5.0 to 6.9. This partially neutralized chitosan gel phase is then further subjected to shear agitation for at least 10 seconds to homogenize the gel phase. The homogenized gel phase is then further neutralized under shear agitation to a pH of above 6.9 to form a gel-like suspension of discrete chitosan particles. Chitosan particles in this form are useful in a number of contexts including, in particular, in the area of plant care.
摘要翻译：公开了一种生产改性碳水化合物聚合物壳聚糖颗粒的方法。作为该方法中使用的具体步骤的结果，这种壳聚糖颗粒被“活化”。该方法包括通过逐步加入中和剂将溶解的壳聚糖从其酸溶液沉淀。在剪切搅拌下进行部分中和以形成pH在5.0至6.9的范围内的连续凝胶相。然后将该部分中和的壳聚糖凝胶相进一步进行剪切搅拌至少10秒以使凝胶相均化。然后将均质化的凝胶相在剪切搅拌下进一步中和至高于6.9的pH以形成离散的壳聚糖颗粒的凝胶状悬浮液。这种形式的壳聚糖颗粒在许多情况下是有用的，特别是在植物保护领域。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式