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. 发明授权

US4129529A Process for the production of phosphazene polymers 失效
标题翻译：磷腈聚合物的制备方法
公开(公告)号：US4129529A
公开(公告)日：1978-12-12
申请号：US824004
申请日：1977-08-12
申请人： John W. Fieldhouse , Daniel F. Graves , William M. Cole , Mark L. Stayer , Steven L. Fenske
发明人： John W. Fieldhouse , Daniel F. Graves , William M. Cole , Mark L. Stayer , Steven L. Fenske
IPC分类号： C08G79/02 , C08G73/00
CPC分类号： C08G79/025
摘要： The production of phosphazene polymers represented by the general formula ##STR1## WHEREIN N IS AN INTEGER FROM 7 TO UPWARDS OF 50,000 WHEREIN ONE OR MORE KINDS OF OR or OR' groups is attached to the phosphorus atoms in a substantially linear chain of alternating P and N atoms, the groups when more than one group is present being randomly distributed along the PN backbone, is enhanced by employing a single solvent for both each of the reactants (polydihalophosphazene and either aryloxide and/or alkoxide) and for the product (phosphazene polymer). By this expedient, the formation of the desired product is achieved in a homogeneous system rather than in a heterogeneous system as in the prior art where different solvents were employed for each of the reactants and for the reaction products.
摘要翻译： {PG，1}由通式{r1 {tc，1 {rb {ab，44 {m，1 {sb，21 {us，5 {ob，4 {mr，1P {M， 1 {AB，2 OR {MR，1 {AB，6 OR {40 {MR，1 {AD，44 N {AB，44 {SB，21 {US，5 {CB，4 {S，6 { {HD {{{{{{{{{{N {N} N = 1，从7到UPWARDS为50,000，其中一种或多种OR或OR {40 {0组连接在交替的P和N的基本线性链中的磷原子原子，当存在多于一个基团时的基团通过使用单一溶剂用于每种反应物（聚二卤代膦和芳氧化物和/或醇盐）和对于产物（磷腈聚合物）而增强，。通过这种方法，所需产物的形成在均匀系统中而不是在异构体系中实现，如在现有技术中，其中对于每种反应物和反应产物使用不同的溶剂。

2. 发明授权

US4128710A Process for the production of phosphazene polymers 失效
标题翻译：磷腈聚合物的制备方法
公开(公告)号：US4128710A
公开(公告)日：1978-12-05
申请号：US845009
申请日：1977-10-25
申请人： John W. Fieldhouse , Daniel F. Graves , William M. Cole , Mark L. Stayer , Steven L. Fenske
发明人： John W. Fieldhouse , Daniel F. Graves , William M. Cole , Mark L. Stayer , Steven L. Fenske
IPC分类号： C08G79/00 , C08G79/02 , C08G73/00 , C08J3/00
CPC分类号： C08G79/025
摘要： The production of phosphazene polymers represented by the general formula ##STR1## WHEREIN R and R' are organic radicals hereinafter defined, and wherein n is an integer from 20 to upwards of 50,000 wherein one or more kinds of OR or OR' groups is attached to the phosphorus atoms in a substantially linear chain of alternating P and N atoms, the groups when more than one group is present being randomly distributed along the PN backbone, as described in copending United States Patent Application Ser. No. 824,004 filed Aug. 12, 1977, is enhanced by an improved procedure for the separation of the sodium chloride by-product from the derivatized phosphazene polymer. By treating the reaction mixture with carbon dioxide, in the presence of water and preferably with an additional alkali metal salt, agglomeration of the sodium chloride is accomplished, and a clean separation of the NaCl from the polyphosphazene ester is more readily achieved.
摘要翻译： {PG，1}由通式{r1 {tc，1 {rb {ab，44 {m，1 {sb，21 {m，2 {ob，5 {mr，1P {M， 3 {AB，2 OR {MR，3 {AB，6 OR {40 {MR，3 {AD，444 N {M，4 {AB，44 {MR，4 {S，15 {MY，2 {CB，5 {BL，88 {S，6 {HD n {re {PS {PS WHEREIN R和R {40 {0是下文定义的有机基团，其中{1为20至高达50,000的整数，其中一个或多个 OR或OR的种类（40个O基团连接在交替的P和N原子的基本线性链中的磷原子，当存在多于一个基团时的基团沿着PN骨架随机分布，如共同未决United 国家专利申请 1977年8月12日提交的No.824,004通过用于从衍生的磷腈聚合物分离氯化钠副产物的改进方法得到增强。通过用二氧化碳处理反应混合物，在水的存在下，优选用另外的碱金属盐，完成氯化钠的附聚，更容易实现NaCl与聚磷腈酯的清洁分离。

3. 发明授权

US4327064A Solution polymerization of cyclic dichlorophosphazene oligomers in cycloaliphatic solvents 失效
标题翻译：环状二氯膦腈低聚物在脂环族溶剂中的溶液聚合
公开(公告)号：US4327064A
公开(公告)日：1982-04-27
申请号：US174765
申请日：1980-08-04
申请人： John W. Fieldhouse , Steven L. Fenske
发明人： John W. Fieldhouse , Steven L. Fenske
IPC分类号： C01B21/098 , C01B25/10
CPC分类号： C01B21/0986
摘要： Substantially linear polydichlorophosphazene polymers having a degree of polymerization of from 20 to 50,000 are prepared by an improved solution polymerization process which involves the polymerization of substantially pure cyclic dichlorophosphazene oligomers represented by the formula (NPC1.sub.2).sub.n, in which n is from 3 to 7, in cycloaliphatic solvents in the presence of a boron trihalide catalyst or a complex of a boron trihalide with an oxygenated phosphorus compound.The process provides for the production of substantially gel free linear polydichlorophosphazene polymer, improved polymerization rates and easier handling of the polymerizate for subsequent derivatization reactions.
摘要翻译：通过改进的溶液聚合方法制备聚合度为20-50,000的基本上线性的聚二氯膦腈聚合物，其包括由式（NPC12）n表示的基本上纯的环状二氯膦腈低聚物聚合，其中n为3-7，在三卤化硼催化剂或三卤化硼与含氧磷化合物的络合物存在下的脂环族溶剂中。该方法提供基本上无凝胶的线性聚二氯膦腈聚合物的生产，改进的聚合速率和更容易处理的聚合物用于随后的衍生化反应。

4. 发明授权

US4681929A Use of rubber solvent-resin solvent and miscella mixtures for extraction-expression of rubber and resins from guayule shrub 失效
标题翻译：使用橡胶溶剂树脂溶剂和miscella混合物从桂树灌木中提取表达橡胶和树脂
公开(公告)号：US4681929A
公开(公告)日：1987-07-21
申请号：US728366
申请日：1985-04-29
申请人： William M. Cole , Steven L. Fenske , David J. Serbin , Shrikant R. Malani , Frank J. Clark , Joanne L. Beattie
发明人： William M. Cole , Steven L. Fenske , David J. Serbin , Shrikant R. Malani , Frank J. Clark , Joanne L. Beattie
IPC分类号： C08C20060101 , C09F1/00 , C08C1/04
CPC分类号： C09F1/00 , Y10S528/933
摘要： A process for extracting resin and rubber from guayule plants utilizing a portion of recycled miscella and a fresh solvent system. An expression step is applied to the plants to enhance recovery of resin and rubber extract. The solvent system is preferably an organic polar solvent and a hydrocarbon solvent for rubber for simultaneous resin and rubber extraction containing at least 50% by weight of the hydrocarbon solvent. The process can be a one-step method wherein resin and rubber are generally simultaneously extracted.
摘要翻译：一种利用一部分回收的miscella和新鲜溶剂系统从番茄植物中提取树脂和橡胶的方法。将植物的表达步骤应用于树脂和橡胶提取物的回收。溶剂体系优选为含有至少50重量％烃溶剂的同时进行树脂和橡胶提取的橡胶的有机极性溶剂和烃溶剂。该方法可以是其中通常同时萃取树脂和橡胶的一步法。

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