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11. 发明授权

US4268643A Process for improving the stability of acetal polymers 失效
标题翻译：改进缩醛聚合物稳定性的方法
公开(公告)号：US4268643A
公开(公告)日：1981-05-19
申请号：US088250
申请日：1979-10-25
申请人： Pierino Radici , Sergio Custro , Paolo Colombo
发明人： Pierino Radici , Sergio Custro , Paolo Colombo
IPC分类号： C08G2/32 , C08G2/34 , C08G6/00
CPC分类号： C08G2/34 , C08G2/32
摘要： The terminal hydroxyl groups of an acetal polymer are esterified or etherified by reaction with an end-capping agent chosen from anhydrides of carboxylic acids, orthoesters and orthocarbonates, by forming an intimate mixture of polymer in powder form and liquid end-capping agent, the amount of said agent in the mixture being less than that which results in loss of the free-flowing characteristics of the powder, and reacting said mixture under stirring at 50.degree.-170.degree. C.
摘要翻译：通过与选自羧酸，原酸酯和原碳酸酯的酸酐的封端剂反应，通过形成粉末形式的聚合物和液体封端剂的紧密混合物，缩醛聚合物的末端羟基被酯化或醚化，所述混合物中的所述试剂的摩尔比小于粉末的自由流动特性的损失，并且在搅拌下使所述混合物在50-170℃下反应。

12. 发明授权

US4000215A Process for the preparation and the simultaneous stabilization of polyoxymethylene 失效
标题翻译：聚氧乙烯的制备和同时稳定的方法
公开(公告)号：US4000215A
公开(公告)日：1976-12-28
申请号：US639139
申请日：1975-12-09
申请人： Pierino Radici , Paolo Colombo , Roberto Croce
发明人： Pierino Radici , Paolo Colombo , Roberto Croce
IPC分类号： C08G2/06 , C08G2/08 , C08G69/00 , C08L77/00
CPC分类号： C08G2/06 , C08G2/08 , C08G69/00
摘要： Polyoxymethylene is obtained in a stabilized form by polymerizing formaldehyde in a liquid organic diluent containing in a dispersed form a catalyst-stabilizer consisting of a polylactamic polymer carrying a terminal ionic couple on its macromolecular chain, said catalyst-stabilizer being present in an amount of from 0.1 to 5 parts by weight for each 100 parts of polyoxymethylene.

13. 发明授权

US3998791A Process for the stabilization of polyacetal reins 失效
标题翻译：聚合物纤维素稳定化的方法
公开(公告)号：US3998791A
公开(公告)日：1976-12-21
申请号：US605949
申请日：1975-08-19
申请人： Pierino Radici , Sergio Custro , Paolo Colombo
发明人： Pierino Radici , Sergio Custro , Paolo Colombo
IPC分类号： C08G2/34 , C08G2/32
CPC分类号： C08G2/34
摘要： Process for the stabilization of polyacetal resins having terminal hydroxyl groups, which comprises reacting a reagent capable of etherifying the hydroxyl groups with the polyacetal resins suspended in a reaction medium that is liquid under the conditions used, the said reaction medium consisting of at least one substance that is a solvent for the polymer and at least one substance that is a non-solvent for the polymer, the said solvent and non-solvent substances being completely miscible at the reaction temperatures but immiscible or partly miscible at temperature substantially lower than the reaction temperatures, and carrying out the operation in the presence of catalytic quantities of one or more compounds selected from the groups consisting ofA. strong or medium-strong mineral acids whose acid dissociation constant or first acid dissociation constant is higher than 10.sup..sup.-7 ;B. strong or medium-strong oganic acids whose acid dissociation constant is higher than 10.sup..sup.-6 ;C. alkyl, cycloalkyl, or alkylaromatic esters of strong or medium-strong mineral acids;D. alkyl, cycloalkyl or alkylaromatic esters of strong or medium-strong organic acids.

14. 发明授权

US3979479A Block copolymers 失效
标题翻译：嵌段共聚物
公开(公告)号：US3979479A
公开(公告)日：1976-09-07
申请号：US533267
申请日：1974-12-16
申请人： Pierino Radici , Gaudenzio Bianchi , Daniele Colombo , Paolo Colombo
发明人： Pierino Radici , Gaudenzio Bianchi , Daniele Colombo , Paolo Colombo
IPC分类号： C08G69/00 , C08G2/00 , C08G2/38 , C08G63/685 , C08G69/44 , C08L77/02
CPC分类号： C08G2/38 , C08G63/6852 , C08G69/44
摘要： A novel block copolymer HO--D--A--B--D--H, whereinA is a polylactonic block of recurring units ##EQU1## B is a polylactamic block of recurring units ##EQU2## C is a polyoxymethylene block of recurring units--CH.sub.2 O--is prepared by catalytic polymerization of at least one lactone ##EQU3## with at least one lactam ##EQU4## wherein: PM.sub.1 and PM.sub.2 are polymethylene linear chains having from 2 to 13 and 3 to 13 carbon atoms, respectively, and being either non-substituted or having at least one hydrogen atom replaced by an alkyl, aryl, alkylaryl or cycloalkyl radical, and reaction of the resulting A-B copolymer with monomeric formaldehyde.The block copolymer HO--D--A--B--D--H having a preponderant percentage in blocks A, B or D, respectively, behaves as a polylactone, polylactam or polyformaldehyde, respectively, having improved properties.
摘要翻译：一种新的嵌段共聚物HO-DABDH，其中A是重复单元的聚乳酸嵌段-C（PM1）-O-- PARALLEL OB是重复单元的聚乳酸嵌段-C-（PM2）-N-- PARALLEL | OH C是重复单元-CH 2 O-的聚甲醛嵌段，其通过至少一种内酯（PM1）|| CO-O |与至少一种内酰胺（PM2），|| || | CO- -NH|其中：

15. 发明授权

US5908823A Microporous crystalline material, a process for its preparation and its use in detergent compositions 失效
标题翻译：微孔结晶材料，其制备方法及其在洗涤剂组合物中的应用
公开(公告)号：US5908823A
公开(公告)日：1999-06-01
申请号：US882997
申请日：1997-06-26
申请人： Agostino Zatta , Pier Domenico Mattioli , Maria Roberta Rabaioli , Pierino Radici , Rosario Aiello , Fortunato Crea
发明人： Agostino Zatta , Pier Domenico Mattioli , Maria Roberta Rabaioli , Pierino Radici , Rosario Aiello , Fortunato Crea
IPC分类号： C01B39/16 , C01B33/26 , C01B39/14 , C01B39/20 , C01B39/22 , C01B39/46 , C11D3/08 , C11D3/12 , C11D7/20 , C11D9/18
CPC分类号： C11D3/128 , C01B39/22 , Y10S423/21 , Y10S423/24
摘要： A microporous crystalline material named zeolite A-LSX having, in its anhydrous form, an oxides molar composition corresponding to formula (I):(M.sub.2/n O+M'.sub.2/n O).Al.sub.2 O.sub.3.zSiO.sub.2 (I)in which:M and M', identical or different, represent a cation of an alkali or alkaline earth metal of valency n;z is a number between 2.1 and 2.6, extremes included.Said microporous crystalline material can be used as a builder in detergent systems.
摘要翻译：一种名为沸石A-LSX的微孔结晶物质，其以无水形式具有对应于式（I）的氧化物摩尔组成：（M2 / nO + M'2 / nO）.Al2O3.zSiO2（I）其中：M和 M'相同或不同，表示n价碱金属或碱土金属的阳离子; z是2.1到2.6之间的数字，包括极值。所述微孔结晶材料可用作洗涤剂体系中的助洗剂。

16. 发明授权

US5386072A Process for the preparation of linear alkylbenzenes 失效
标题翻译：制备直链烷基苯的方法
公开(公告)号：US5386072A
公开(公告)日：1995-01-31
申请号：US10816
申请日：1993-01-29
申请人： Pierluigi Cozzi , Giuseppe Giuffrida , Tullio Pellizzon , Pierino Radici
发明人： Pierluigi Cozzi , Giuseppe Giuffrida , Tullio Pellizzon , Pierino Radici
IPC分类号： B01J21/02 , C07B61/00 , C07C2/66 , C07C2/68 , C07C2/86 , C07C7/04 , C07C7/152 , C07C15/107 , C07C2/64 , C07C2/70
CPC分类号： C07C15/107 , C07C2/66 , C07C2/68 , C07C2/861 , C07C2521/02 , C07C2527/126
摘要： Process for the preparation of linear alkylbenzenes, wherein the benzene is reacted, in the presence of aluminum chloride or aluminum in powder form, with a mixture composed of C.sub.7 -C.sub.20 n-olefins and C.sub.7 -C.sub.20 chloroparaffins, with a molar ratio n-olefins/chloroparaffins between 70:30 and 99:1.
摘要翻译：制备直链烷基苯的方法，其中苯在粉末形式的氯化铝或铝的存在下与由C7-C20正构烯烃和C 7 -C 20氯代烷烃组成的混合物与正己烯的摩尔比反应 / chloroparaffins在70:30和99：1之间。

17. 发明授权

US4530980A Method of copolymerization in suspension of ethylene with straight-chain alpha-olefins to obtain low-density copolymers 失效
标题翻译：乙烯与直链α-烯烃的悬浮液共聚获得低密度共聚物的方法
公开(公告)号：US4530980A
公开(公告)日：1985-07-23
申请号：US579052
申请日：1984-02-10
申请人： Pierino Radici
发明人： Pierino Radici
IPC分类号： C08F2/00 , C08F2/14 , C08F2/18 , C08F210/00 , C08F210/02 , C08F210/16 , C08F297/08
CPC分类号： C08F297/08 , C08F210/02 , Y10S526/904
摘要： A method of copolymerization in suspension of ethylene with straight-chain alpha-olefins so as to obtain low-density copolymers in two copolymerization steps in an aliphatic hydrocarbon medium having a boiling point above 40.degree. C. In the first reaction step the medium is supplied with a high-activity Ziegler catalyst on a carrier and with ethylene and the alpha-olefin. The copolymerization reaction is carried out for between 20 seconds and 30 minutes and at a temperature between 45.degree. and 65.degree.. The resulting copolymer is used in the second reaction step as a nucleus for polymerizing ethylene and the alpha-olefin, the reaction medium being supplied with additional quantities of ethylene and alpha-olefins so as to maintain the concentration of alpha-olefin in the reaction medium at between 4 and 25% by weight per 100 parts by weight of reaction medium and so as to maintain the pressure of ethylene at between 5 and 25 bars, the reaction being performed at a temperature between 50.degree. and 80.degree. C. for between 1 and 3 hours.
摘要翻译：在乙烯与直链α-烯烃的悬浮液中共聚的方法，以在沸点高于40℃的脂族烃介质中在两个共聚步骤中获得低密度共聚物。在第一反应步骤中，在载体上具有高活性齐格勒催化剂，并与乙烯和α-烯烃反应。共聚反应进行20秒〜30分钟，温度45〜65℃。所得共聚物用作第二反应步骤中的乙烯和α-烯烃聚合的核，向反应介质中加入额外量的乙烯和α-烯烃，以保持反应介质中α-烯烃的浓度相对于100重量份的反应介质为4〜25重量％，为了保持乙烯的压力在5〜25巴之间，反应在50〜80℃的温度下进行1分钟和3小时。

18. 发明授权

US4355153A Process for the polymerization of formaldehyde 失效
标题翻译：甲醛聚合方法
公开(公告)号：US4355153A
公开(公告)日：1982-10-19
申请号：US208457
申请日：1980-11-19
申请人： Pierino Radici , Paolo Colombo
发明人： Pierino Radici , Paolo Colombo
IPC分类号： C08G2/08 , C08L77/02
CPC分类号： C08G2/08
摘要： Polyformaldehyde is prepared by polymerizing anhydrous monomeric formaldehyde in an organic, liquid and inert diluent which is a non-solvent for polyformaldehyde, in the presence of a catalyst of the formula: ##STR1## wherein A.sup.(-) is a lactamate group: ##STR2## in which PM is a linear polymethylene chain with from 3 to 13 carbon atoms, possibly substituted with one or more alkyl, cycloalkyl, aryl or alkylaryl radicals, and wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently are an alkyl, cycloalkyl, aryl or alkylaryl radical.
摘要翻译：在下式催化剂存在下，将无水单体甲醛聚合在有机，液体和惰性稀释剂（其为聚甲醛的非溶剂）中制备聚甲醛，其中A（ - ）为乳糖酸盐基团：IMA图 >其中PM是具有3至13个碳原子的直链多亚甲基链，可能被一个或多个烷基，环烷基，芳基或烷基芳基取代，并且其中R 1，R 2，R 3和R 4独立地是烷基，环烷基，芳基或烷基芳基。

19. 发明授权

US4105638A Process for improving the stability of etherified acetal homopolymers 失效
标题翻译：改进乙二醇共聚物稳定性的方法
公开(公告)号：US4105638A
公开(公告)日：1978-08-08
申请号：US751299
申请日：1976-12-16
申请人： Pierino Radici , Sergio Custro , Mario Ermoni , Paolo Colombo
发明人： Pierino Radici , Sergio Custro , Mario Ermoni , Paolo Colombo
IPC分类号： C08G2/36
CPC分类号： C08G2/36
摘要： An etherified acetal homopolymer is stabilized by heat-treating said homopolymer suspended in a liquid diluent chosen from water or mixtures thereof with polar organic compounds, preferably in the presence of a basic compound, at a temperature of 100.degree.-160.degree. C and below the melting point of the homopolymer, thereby to substantially degrade the unstable fraction of said homopolymer.

20. 发明授权

US4088818A Process for the recovery of formaldehyde present in waste waters 失效
标题翻译：在废水中回收甲醛的方法
公开(公告)号：US4088818A
公开(公告)日：1978-05-09
申请号：US692408
申请日：1976-06-03
申请人： Pierino Radici , Pietro Erini , Umberto Santini , Paolo Colombo
发明人： Pierino Radici , Pietro Erini , Umberto Santini , Paolo Colombo
IPC分类号： C07D487/18 , C07D295/02
CPC分类号： C07D487/18 , C07C45/85
摘要： Formaldehyde present in a waste water containing lower carboxylic acids is recovered by reacting said waste water at 0.degree. to 90.degree. C. with the amount of ammonia required for converting said formaldehyde into hexamine and the latter is recovered in solid form by evaporating the resulting solution.The solid hexamine thus recovered has a content in lower carboxylic acids not exceeding 0.05 wt.%, is practically free from other impurities and is suited for any conventional use.
摘要翻译：含有低级羧酸的废水中存在的甲醛通过使所述废水在0-90℃下与将所述甲醛转化成六胺所需的氨的量进行回收，后者通过蒸发所得溶液而以固体形式回收。

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