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. 发明公开

EP0177974A3 A method for the preparation of a polyvinyl chloride resin 有权
标题翻译：一种制备聚氯乙烯树脂的方法
公开(公告)号：EP0177974A3
公开(公告)日：1987-05-20
申请号：EP85112943
申请日：1985-10-11
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Itoh, Kenichi , Noguki, Genji
IPC分类号： C08F14/06 , C08F02/20
CPC分类号： C08F14/06 , C08F2/20
摘要： The dispersing agent in the suspension polymerization of vinyl chloride according to the inventive method is a combination of a monomer-soluble non-ionic surface active agent and a partially crosslinked copolymer of an ethylenically unsaturated polymerizable carboxylic acid compound and a compound having at least two ethylenically unsaturated polymerizable linkages in a molecule. By virtue of the specific dispersing agent, the powdery polyvinyl chloride resin obtained by the polymerization has a high bulk density, greatly decreased number of fish eyes and remarkably improved thermal stability.

2. 发明公开

EP0166430A3 A method for the suspension polymerization of vinyl chloride monomer 有权
标题翻译：一种氯乙烯单体悬浮聚合方法
公开(公告)号：EP0166430A3
公开(公告)日：1987-01-14
申请号：EP85107874
申请日：1985-06-25
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Itoh, Kenichi , Noguki, Genji , Nakahara, Masanobu
IPC分类号： C08F14/06 , C08F02/20
CPC分类号： C08F14/06 , C08F2/20
摘要： The invention provides an improvement in the suspension polymerization of vinyl chloride or a monomer mixture mainly composed of vinyl chloride in an aqueous medium containing a nonionic surface active agent and in the presence of a monomer-soluble polymerization initiator, according to which the aqueous polymerization medium is admixed with a crosslinked copolymer having carboxyl groups such as a copolymer of acrylic acid and diethyleneglycol bisallyl or bismethallyl ether at a moment when the percentage of the monomer conversion is in the range from 1 to 20 % so that a polyvinyl chloride resin product of high quality can be obtained having an outstandingly high bulk density and plasticizer absorptivity but still containing an extremely small number of fish eyes.

3. 发明授权

EP0934955B1 Polymerization process characterized by a two layer coating against scale formation deposited using a steam carrier 有权
标题翻译：引起的含蒸汽的载体沉积对疾病的双层涂层使用形成聚合
公开(公告)号：EP0934955B1
公开(公告)日：2003-04-16
申请号：EP99102031.4
申请日：1999-02-01
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Shimizu, Toshihide , Watanabe, Mikio , Noguki, Genji
IPC分类号： C08F2/00 , C23F15/00 , B05D7/24
CPC分类号： C08F2/002 , Y10T428/31551 , Y10T428/31594 , Y10T428/31681 , Y10T428/31942

4. 发明公开

EP1076068A1 Preparation of vinyl chloride polymer 无效
标题翻译： Herstellung von PVC
公开(公告)号：EP1076068A1
公开(公告)日：2001-02-14
申请号：EP00306617.2
申请日：2000-08-03
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Hoshida, Shigehiro , Ishii, Tatsuo , Noguki, Genji
IPC分类号： C08F2/00 , C08F14/06 , B08B9/08
CPC分类号： C08F2/008 , B08B9/093
摘要： A vinyl chloride polymer is prepared by repeating a series of steps of charging a reactor with a vinyl chloride monomer, effecting polymerization, removing a polymer slurry from the reactor, and washing the inner wall of the reactor with water. The washing step uses water in a volume of 0.01-0.5 m 3 /m 2 of the surface area of the reactor inner wall. A vinyl chloride polymer of quality with minimal fisheyes is produced. A reduction of the washing time leads to a significant improvement in productivity.
摘要翻译：通过重复一系列步骤，用氯乙烯单体装入反应器，进行聚合，从反应器中除去聚合物浆料，并用水洗涤反应器的内壁，制备氯乙烯聚合物。洗涤步骤使用体积为反应器内壁表面积的0.01-0.5m 3 / m 2的水。生产具有最小鱼眼的质量的氯乙烯聚合物。洗涤时间的减少导致生产率的显着提高。

5. 发明授权

EP0377533B1 Method for the preparation of a vinyl chloride-based polymer 失效
标题翻译：用于制备基于氯乙烯的聚合物的方法
公开(公告)号：EP0377533B1
公开(公告)日：1993-07-21
申请号：EP90400021.3
申请日：1990-01-04
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Noguki, Genji , Kuwabara, Kouzou , Hoshida, Shigehiro
IPC分类号： C08F14/06 , C08F2/20
CPC分类号： C08F14/06 , C08F2/20

6. 发明公开

EP0377533A2 Method for the preparation of a vinyl chloride-based polymer 失效
标题翻译： Verfahren zur Herstellung eines Polymers auv Vinylchloridbasis。
公开(公告)号：EP0377533A2
公开(公告)日：1990-07-11
申请号：EP90400021.3
申请日：1990-01-04
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Noguki, Genji , Kuwabara, Kouzou , Hoshida, Shigehiro
IPC分类号： C08F14/06 , C08F2/20
CPC分类号： C08F14/06 , C08F2/20
摘要： Foaming above the aqueous polymerization mixture can be efficiently reduced in suspension polymerization of vinyl chloride monomer in an aqueous medium contained in a polymerization reactor equipped with a reflux condenser for removal of the heat of polymerization by admixing the polymerization mixture with additives comprising (a) from 0.002 to 0.007 part by weight of a partially saponified polyvinyl alcohol having a degree of saponification in the range from 20 to 50% by moles and an average degree of polymerization in the range from 200 to 400 and (b) from 0.001 to 0.01 part by weight of a silicone-based defoaming agent, each amount being per 100 parts by weight of the vinyl chloride monomer or the monomer mixture mainly composed of vinyl chloride, at a moment, preferably, before the reflux condenser is brought into operation. By this improvement, the resultant polyvinyl chloride resin product may have a greatly improved bulk density and particle size distrribution without causing polymer scale deposition on the reactor walls.
摘要翻译：含水聚合混合物以上的发泡可以有效地降低氯乙烯单体在装有回流冷凝器的聚合反应器中的含水介质的悬浮聚合中，以通过将聚合混合物与添加剂混合来除去聚合反应热，所述添加剂包含（a） 0.002〜0.007重量份皂化度为20〜50摩尔％，平均聚合度为200〜400的部分皂化聚乙烯醇，（b）0.001〜0.01份重量的硅酮类消泡剂，各量相对于100重量份氯乙烯单体或主要由氯乙烯组成的单体混合物，此时优选在回流冷凝器投入运行之前。通过这种改进，所得到的聚氯乙烯树脂产品可以大大改善堆积密度和粒度分布，而不会在反应器壁上沉积聚合物垢。

7. 发明授权

EP1076068B1 Preparation of vinyl chloride polymer 无效
标题翻译： PVC生产
公开(公告)号：EP1076068B1
公开(公告)日：2005-01-12
申请号：EP00306617.2
申请日：2000-08-03
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Hoshida, Shigehiro , Ishii, Tatsuo , Noguki, Genji
IPC分类号： C08F2/00 , C08F14/06 , B08B9/08
CPC分类号： C08F2/008 , B08B9/093

8. 发明公开

EP0442737A2 Method for the preparation of a polyvinyl chloride resin 失效
标题翻译： Verfahren zur Herstellung von Polyvinylchlorid-Harz。
公开(公告)号：EP0442737A2
公开(公告)日：1991-08-21
申请号：EP91301203.5
申请日：1991-02-14
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Noguki, Genji , Koga, Toshimichi , Amano, Tadashi
IPC分类号： C08F14/06 , C08F2/18 , C08F2/44
CPC分类号： C08F14/06 , C08K5/103 , C08F2/18 , C08L27/06
摘要： An improvement is proposed for decreasing triboelectric static charging of a polyvinyl chloride resin powder so as to improve the flowability of the powder and prevent a decrease in the bulk density of the powder due to static electricity. The improvement comprises adding to the aqueous polymerization mixture during the polymerization process a specified amount of an aqueous dispersion containing a salt of a long-chain carboxylic acid with a divalent metal and an ester of sorbitan with a long-chain carboxylic acid in a specified weight proportion and in a specified total concentration, at a point when conversion of the monomer to polymer is at least 70%.
摘要翻译：提出了降低聚氯乙烯树脂粉末的摩擦带电静电充电的改进，以改善粉末的流动性并防止由于静电导致的粉末的堆积密度的降低。该改进包括在聚合过程中向含水聚合混合物中加入指定量的含有二价金属的长链羧酸盐和脱水山梨糖醇与特定重量的长链羧酸酯的水分散体在单体向聚合物的转化率至少为70％时的比例和指定的总浓度。

9. 发明授权

EP0177974B1 A method for the preparation of a polyvinyl chloride resin 有权
标题翻译：一种制备聚氯乙烯树脂的方法
公开(公告)号：EP0177974B1
公开(公告)日：1990-09-12
申请号：EP85112943.7
申请日：1985-10-11
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Itoh, Kenichi , Noguki, Genji
IPC分类号： C08F14/06 , C08F2/20
CPC分类号： C08F14/06 , C08F2/20

10. 发明公开

EP0166416A2 A method for the suspension polymerization of vinyl chloride monomer in an aqueous medium 有权
标题翻译：一种用于氯乙烯单体在水性介质中悬浮聚合方法。
公开(公告)号：EP0166416A2
公开(公告)日：1986-01-02
申请号：EP85107822.0
申请日：1985-06-24
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Itoh, Kenichi , Noguki, Genji , Tanaka, Motoaki , Ohba, Hitoshi
IPC分类号： C08F14/06 , C08F2/20
CPC分类号： C08F14/06 , C08F2/20
摘要： The invention provides an improvement in the suspension polymerization of vinyl chloride in an aqueous medium in the presence of a monomer-soluble polymerization initiator, according to which the amount of polymer scale deposition on the reactor walls can be greatly decreased. The improvement comprises admixing the aqueous polymerization medium with (a) a water-soluble crosslinked copolymer of an unsaturated carboxylic acid monomer, e.g. acrylic acid, and a crosslinking monomer such as di(meth)allyl ether of diethyleneglycol and (b) a non-ionic surface active agent in combination.

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