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

US5977193A Reclaiming epsilon-caprolactam from nylon 6 carpet 失效
标题翻译：从尼龙6地毯回收ε-己内酰胺
公开(公告)号：US5977193A
公开(公告)日：1999-11-02
申请号：US943795
申请日：1992-09-11
申请人： Thomas F. Corbin , Alan C. Handermann , Richard Kotek , William D. Porter , Jack A. Dellinger , Edward A. Davis
发明人： Thomas F. Corbin , Alan C. Handermann , Richard Kotek , William D. Porter , Jack A. Dellinger , Edward A. Davis
IPC分类号： B29B17/02 , B29K77/00 , B29K105/26 , C07D201/12 , C08G69/14 , C08J11/00 , C08J11/14 , C08J11/16
CPC分类号： C08G69/14 , C07D201/12 , Y02P20/582
摘要： .epsilon.-Caprolactam is continuously recovered from carpet made from nylon 6 face fibers and a backing. The carpet is fed to a separator to prepare scrap containing nylon 6 and auxiliary materials. The scrap from the separator is fed to a depolymerizing reactor to produce an .epsilon.-caprolactam containing distillate and more auxiliary materials. The .epsilon.-caprolactam in the distillate is separated from other volatiles and purified. The auxiliary materials are also recovered or re-used.
摘要翻译： ε-己内酰胺从由尼龙6面纤维和背衬制成的地毯连续回收。将地毯送入隔板以制备含有尼龙6和辅助材料的废料。将来自分离器的废料进料到解聚反应器以产生含有ε-己内酰胺的馏出物和更多的辅助材料。馏出物中的ε-己内酰胺与其它挥发物分离并纯化。辅助材料也被回收或重新使用。

2. 发明授权

US5169870A Reclaiming .epsilon.-caprolactam from nylon 6 carpet 失效
标题翻译：从尼龙6地毯回收（EPSILON）-CAPROLACTAM
公开(公告)号：US5169870A
公开(公告)日：1992-12-08
申请号：US718720
申请日：1991-06-21
申请人： Thomas F. Corbin , Edward A. Davis , Jack A. Dellinger
发明人： Thomas F. Corbin , Edward A. Davis , Jack A. Dellinger
IPC分类号： B29B17/02 , B29K77/00 , B29K105/26 , C07D201/12 , C08G69/14 , C08J11/00
CPC分类号： C07D201/12 , C08G69/14 , Y02P20/582
摘要： A process for the continuous recovery of .epsilon.-caprolactam provides a carpet made from nylon 6 fibers and having a backing to a separator to prepare scrap containing nylon 6 and waste. The scrap from the separator is fed to a depolymerizing reactor where the scrap is subjected to a depolymerization catalyst, temperatures of at least the melting point of nylon 6 and superheated steam to produce an .epsilon.-caprolactam containing distillate and more waste. The .epsilon.-caprolactam in the distillate is separated from other volatiles therein; and purified.

3. 发明授权

US5241066A Method of recovering caprolactam from mixed waste 失效
标题翻译：从混合废物中回收己内酰胺的方法
公开(公告)号：US5241066A
公开(公告)日：1993-08-31
申请号：US904223
申请日：1992-06-25
申请人： Edward A. Davis , Jack A. Dellinger
发明人： Edward A. Davis , Jack A. Dellinger
IPC分类号： C07D201/12 , C07D201/16
CPC分类号： C07D201/16 , C07D201/12
摘要： A process for recovering caprolactam from waste containing both polycaprolactam and materials which are insoluble in acidic solvents for polycaprolactam includes agitating the waste in an acidic solvent capable of dissolving polycaprolactam without degrading the acid insoluble materials, separating the solution containing polycaprolactam from the acid insoluble materials, feeding the solution containing the polycaprolactam to a depolymerization reactor, without substantially precipitating the polycaprolactam and depolymerizing the polycaprolactam solution to obtain substantially pure caprolactam.

4. 发明授权

US4844834A Molecular weight controller for polymerization of lactams to polyamides 失效
标题翻译：用于内酰胺聚合成聚酰胺的分子量控制剂
公开(公告)号：US4844834A
公开(公告)日：1989-07-04
申请号：US294959
申请日：1989-01-06
申请人： Jack A. Dellinger
发明人： Jack A. Dellinger
IPC分类号： C08G69/16
CPC分类号： C08G69/16
摘要： A molecular weight controller having particular application in the polymerization of a lactam, i.e., epsiloncaprolactam, to a polyamide, i.e., poly(epsiloncaprolactam). The molecular weight controller comprises a primary monofunctional amine, i.e., benzylamine, a primary monofunctional acid, i.e., acetic acid, and a salified aminoacid containing an aromatic, a cyclohexane, or cyclopentane moiety, i.e., 4-(aminomethylbenzoic acid salified with p-toluenesulfonic acid. The resulting polyamide has a reduced water extractable content.
摘要翻译：一种分子量控制剂，特别适用于内酰胺（即ε-己内酰胺）聚酰胺，即聚（ε-己内酰胺）。分子量控制剂包括一级单官能胺，即苄胺，一级单官能酸，即乙酸，和含有芳族，环己烷或环戊烷部分的成盐氨基酸，即4-（氨基甲基苯甲酸，所得聚酰胺具有降低的可水提取物含量。

5. 发明授权

US5006635A Molecular weight controller composition for aqueous polymerization of lactam to polyamide 失效
标题翻译：用于内酰胺向聚酰胺水性聚合的分子量控制剂组合物
公开(公告)号：US5006635A
公开(公告)日：1991-04-09
申请号：US359445
申请日：1989-05-31
申请人： Jack A. Dellinger
发明人： Jack A. Dellinger
IPC分类号： C08G69/16
CPC分类号： C08G69/16
摘要： A molecular weight controller having particular application in the polymerization of a lactam, i.e., epsiloncaprolactam, to a polyamide, i.e., poly(epsiloncaprolactam). The molecular weight controller comprises a primary monofunctional amine, i.e., benzylamine, a primary monofunctional acid, i.e., acetic acid, and a salified aminoacid containing an aromatic, a cyclohexane, or cyclopentane moiety, i.e., 4-(aminomethyl)benzoic acid salified with p-toluenesulfonic acid. The resulting polyamide has a reduced water extractable content.
摘要翻译：一种分子量控制剂，特别适用于内酰胺（即ε-己内酰胺）聚酰胺，即聚（ε-己内酰胺）。分子量控制剂包括一级单官能胺，即苄胺，一级单官能酸，即乙酸和含有芳族，环己烷或环戊烷部分的成盐氨基酸，即与（S）对甲苯磺酸。得到的聚酰胺具有减少的可水提取物含量。

6. 发明授权

US5077381A Constant compositioin recycle of nylon 6 polymerization wash water 失效
标题翻译：尼龙6聚合洗涤水的恒定组合物回收率
公开(公告)号：US5077381A
公开(公告)日：1991-12-31
申请号：US531976
申请日：1990-06-01
申请人： Jack A. Dellinger
发明人： Jack A. Dellinger
IPC分类号： C08G69/16 , C08G69/46
CPC分类号： C08G69/16 , C08G69/46 , Y02P20/582
摘要： A process for preparing polyamides of substantially constant cyclic dimer concentration from amide monomers includes extracting unreacted amide monomers and oligomers, reducing the oligomer concentration relative to the concentration of total extractants and then returning the extract to the reaction vessel in substantially the same total proportion as extracted.

7. 发明授权

US5218080A Constant composition recycle of nylon 6 polymerization wash water 失效
标题翻译：尼龙6聚合洗涤水的恒定组成回收
公开(公告)号：US5218080A
公开(公告)日：1993-06-08
申请号：US774401
申请日：1991-10-10
申请人： Jack A. Dellinger
发明人： Jack A. Dellinger
IPC分类号： C08G69/16 , C08G69/46
CPC分类号： C08G69/16 , C08G69/46 , Y02P20/582
摘要： A process for preparing polyamides from amide monomers in a reaction vessel where a portion of the monomers remain unreacted or form oligomers as an extractable fraction includes extracting from the polyamide unreacted amide monomers and oligomers to yield an extracted proportion by weight based on total reaction charge; reducing the oligomer concentration of the extracted proportion relative to the total extract concentration; and returning the extract to the reaction vessel as substantially the same proportion as extracted by weight based on the total reaction charge, so that, after a single extraction, throughout the process the extractable fraction remains below its equilibrium concentration.
摘要翻译：在反应容器中由酰胺单体制备聚酰胺的方法，其中一部分单体保持未反应或形成作为可提取部分的低聚物，包括从聚酰胺未反应的酰胺单体和低聚物中提取基于总反应电荷提取重量比的提取比例; 相对于总提取物浓度降低提取的比例的寡聚体浓度; 并将提取物以基于总反应电荷的重量提取的基本相同的比例返回到反应容器中，使得在单次萃取之后，在整个过程中，可萃取馏分保持低于其平衡浓度。

8. 发明授权

US4720328A Method for removing impurities from caprolactam 失效
标题翻译：从己内酰胺除去杂质的方法
公开(公告)号：US4720328A
公开(公告)日：1988-01-19
申请号：US529063
申请日：1983-09-02
申请人： Tom F. Corbin , Jack A. Dellinger , Kenneth B. Wagener
发明人： Tom F. Corbin , Jack A. Dellinger , Kenneth B. Wagener
IPC分类号： C07D201/16 , B01D3/10 , B01D3/34
CPC分类号： C07D201/16
摘要： A method for removing impurities from caprolactam is disclosed. The method comprises the sequential steps of treating the impure caprolactam with phosphorus pentoxide so that the impurities react therewith to form high boiling species and then distilling the so treated impure lactam to recover substantially pure caprolactam as overhead, with the impurities remaining as bottoms.
摘要翻译：公开了从己内酰胺除去杂质的方法。该方法包括用五氧化二磷处理不纯的己内酰胺的顺序步骤，使得杂质与其反应形成高沸点物质，然后蒸馏如此处理的不纯内酰胺以回收基本上纯的己内酰胺作为塔顶馏出物，其中杂质作为底部残留。

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