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1. 发明授权

US4158091A Process for improving the stability of etherified acetal homopolymers 失效
标题翻译：提高醚化缩醛均聚物稳定性的方法
公开(公告)号：US4158091A
公开(公告)日：1979-06-12
申请号：US870148
申请日：1978-01-17
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： C08G2/00 , C08G2/30 , C08G2/34 , C08G2/36
CPC分类号： C08G2/36
摘要： The thermal and chemical stability of etherified acetal homopolymers is improved by heat-treating the latter in the molten state at a temperature of at least 180.degree. C., in the presence of a halide of an alkali or alkaline earth metal, until substantially complete degradation of the unstable polyoxymethylene chains.
摘要翻译：醚化的缩醛均聚物的热和化学稳定性通过在熔融状态下在至少180℃的温度下，在碱金属或碱土金属的卤化物的存在下热处理，直到基本上完全降解的不稳定聚甲醛链。

2. 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.

3. 发明授权

US4097453A Process for the preparation of etherified acetal polymers 失效
标题翻译：醚化缩醛聚合物的制备方法
公开(公告)号：US4097453A
公开(公告)日：1978-06-27
申请号：US642811
申请日：1975-12-22
申请人： Pierino Radici , Sergio Custro , Paolo Colombo
发明人： Pierino Radici , Sergio Custro , Paolo Colombo
IPC分类号： C08G2/34 , C08K5/43 , C08K5/42
CPC分类号： C08G2/34 , C08K5/43
摘要： The unstable terminal hydroxyl groups of acetal polymers are etherified in a liquid reaction medium in the presence of organic additives.
摘要翻译：在有机添加剂存在下，缩醛聚合物的不稳定末端羟基在液体反应介质中醚化。

4. 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。

5. 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.

6. 发明授权

US5412040A Hydrogenated block copolymers containing epoxy groups and their preparation 失效
标题翻译：含环氧基团的氢化嵌段共聚物及其制备方法
公开(公告)号：US5412040A
公开(公告)日：1995-05-02
申请号：US831444
申请日：1992-02-05
申请人： Sergio Custro , Gian T. Viola
发明人： Sergio Custro , Gian T. Viola
IPC分类号： C08C19/02 , C08C19/06 , C08F8/04 , C08F8/08 , C08F297/04 , C08G59/34
CPC分类号： C08F8/08 , C08F2800/20
摘要： A description follows of epoxydated block copolymers, either linear or branched, which can be defined with the following formulae:1) [A-(E-B-EPOX)].sub.n X2) A.sub.1 -(E.sub.1 -B.sub.1 -EPOX.sub.1)-A-HT-(E.sub.2 -B.sub.2 -EPOX.sub.2)3) [(E.sub.1 -B.sub.1 -EPOX.sub.1)-HT-A(E.sub.2 -B.sub.2 -EPOX.sub.2)].sub.n Xwhere A is a polyvinylaromatic block in a percentage ranging from 10 to 50% by weight, E-B-EPOX is a block composed of ethylene units, epoxydated butene and diene units in which the percentage by weight of the epoxy group ranges from 1% to 40%, HT is a tapered copolymer segment made up of hydrogenated and epoxydated diene monomeric units and vinylaromatic units whose content ranges from 0 to 20%, x is a radical having a valence ranging from 1 to 20.The block copolymers have an average molecular weight ranging from 30,000 to 400,000, a content of polyvinylaromatic blocks of between 10 and 50% by weight and a content of (E.sub.1 -B.sub.1 -EPOX.sub.1)+(E.sub.2 -B.sub.2 -EPOX.sub.2) blocks ranging from 90 to 50% by weight; the weight ratio between (E.sub.1 -B.sub.1 -EPOX.sub.1) and (E.sub.2 -B.sub.2 -EPOX.sub.2) ranges from 0.1 to 1.0. These polymers are used in the preparation of polymeric compositions based on engineering polymers such as polyamides, polycarbonate, polyesters, improving their physical properties and above all their impact strength and in mixtures with oils and hydrocarbon resins to produce materials having excellent adhesion of polar substrates.
摘要翻译：下面描述直链或支链的环氧化嵌段共聚物，其可以用下式定义：1）[A-（EB-EPOX）] n X 2）A1-（E1-B1-EPOX1）-A-HT - （E2-B2-EPOX2）3）[（E1-B1-EPOX1）-HT-A（E2-B2-EPOX2）] n X其中A为10至50重量％的聚乙烯基芳族嵌段， EB-EPOX是由乙烯单元，环氧化丁烯和二烯单元组成的嵌段，其中环氧基的重量百分比为1％至40％，HT是由氢化和环氧化二烯单体单元组成的渐缩共聚物链段，乙烯基芳族单元的含量范围为0至20％，x为1至20的化合价。嵌段共聚物的平均分子量范围为30,000至400,000，聚乙烯基芳族嵌段的含量为10至50％，通过（E1-B1-EPOX1）+（E2-B2-EPOX2）嵌段的含量为90〜50重量％（E1-B1-EPOX1）与（E2-B2-EPOX2）之间的重量比为0.1〜1.0。这些聚合物用于制备基于聚酰胺，聚碳酸酯，聚酯等工程聚合物的聚合物组合物，改善其物理性能，最重要的是它们的冲击强度，以及与油和烃树脂的混合物，以制备具有优异极性粘合性的材料。

7. 发明授权

US4874821A Block copolymer and process for preparing it 失效
标题翻译：嵌段共聚物及其制备方法
公开(公告)号：US4874821A
公开(公告)日：1989-10-17
申请号：US117631
申请日：1987-11-05
申请人： Enrico Agostinis , Sergio Custro , Alessandro Zazzetta
发明人： Enrico Agostinis , Sergio Custro , Alessandro Zazzetta
IPC分类号： C08F4/48 , C08F297/04
CPC分类号： C08F297/04
摘要： A linear copolymer constituted by four alternating blocks:B1-A1-B2-A2wherein:B1 and B2 are polydienic blocks, and preferably polybutadiene blocks, andA1 and A2 are polyvinylaromatic, and preferably polystyrene blocks;which polymer has a weight average molecular weight of from 30,000 to 250,000, and a global content of monomer dienic units of from 40 to 80% by weight, wherein the weight average molecular weight of B1 block is comprised within the range of from 0.1 to 0.5 times the weight average molecular weight of B2 block, and the weight average molecular weight of A1 block is comprised within the range of from 0.25 to 2.0 times the weight average molecular weight of A2 block, and which contains between B1 and A1 blocks a copolymeric moiety formed by randomly linked monomer dienic and vinylaromatic units; is endowed with a desired balance of mechanical characteristics, rheologic characterisatics and characteristics of thermooxidative resistance.The process to prepare such a block copolymer is disclosed.
摘要翻译：由四个交替嵌段构成的线性共聚物：B1-A1-B2-A2其中：B1和B2是多元嵌段，优选聚丁二烯嵌段，A1和A2是聚乙烯基芳族化合物，优选聚苯乙烯嵌段; 该聚合物的重均分子量为30,000〜250,000，单体二烯单元的总含量为40〜80重量％，其中B1嵌段的重均分子量在0.1〜0.5的范围内倍数为B2嵌段的重均分子量，A1嵌段的重均分子量在A2嵌段的重均分子量的0.25-2.0的范围内，并且在B1和A1嵌段之间含有共聚部分由无规连接的单体二烯和乙烯基芳族单元形成; 具有所需的机械特性，流变特性和耐热氧化性能的平衡。公开了制备这种嵌段共聚物的方法。

8. 发明授权

US5491197A Hydrogenated block copolymers containing epoxy groups and their preparation 失效
标题翻译：含环氧基团的氢化嵌段共聚物及其制备方法
公开(公告)号：US5491197A
公开(公告)日：1996-02-13
申请号：US414596
申请日：1995-03-31
申请人： Sergio Custro , Gian I. Viola
发明人： Sergio Custro , Gian I. Viola
IPC分类号： C08C19/02 , C08C19/06 , C08F8/04 , C08F8/08 , C08F297/04 , C08G59/34
CPC分类号： C08F8/08 , C08F2800/20
摘要： A description follows of epoxydated block copolymers, either linear or branched, which can be defined with the following formulae:1) [A--(E--B--EPOX)].sub.n X2) A.sub.1 --(E.sub.1 --B.sub.1 --EPOX.sub.1)--A--HT--(E.sub.2 --B.sub.2 --EPOX.sub.2)3) [(E.sub.1 --B.sub.1 --EPOX.sub.1)--HT--A(E.sub.2 --B.sub.2 --EPOX.sub.2)].sub.x Xwhere A is a polyvinylaromatic block in a percentage ranging from 10 to 50% by weight, E--B--EPOX is a block composed of ethylene units, epoxydated butene and diene units in which the percentage by weight of the epoxy group ranges from 1% to 40%, HT is a tapered copolymer segment made up of hydrogenated and epoxydated diene monomeric units and vinylaromatic units whose content ranges from 0 to 20%, x is a radical having a valence ranging from 1 to 20.The block copolymers have an average molecular weight ranging from 30,000 to 400,000, a content of polyvinylaromatic blocks of between 10 and 50% by weight and a content of (E.sub.1 --B.sub.1 --EPOX.sub.1)+(E.sub.2 --B.sub.2 --EPOX.sub.2) blocks ranging from 90 to 50% by weight; the weight ratio between (E.sub.1 --B.sub.1 --EPOX.sub.1) and (E.sub.2 --B.sub.2 --EPOX.sub.2) ranges from 0.1 to 1.0. These polymers are used in the preparation of polymeric compositions based on engineering polymers such as polyamides, polycarbonate, polyesters, improving their physical properties and above all their impact strength and in mixtures with oils and hydrocarbon resins to produce materials having excellent adhesion of polar substrates.
摘要翻译：下面描述可以由下式定义的直链或支链的环氧化嵌段共聚物：1）[A-（EB-EPOX）] nX 2）A1-（E1-B1-EPOX1）-A-HT- （E2-B2-EPOX2）3）[（E1-B1-EPOX1）-HT-A（E2-B2-EPOX2）] xX其中A是10至50重量％的百分比的聚乙烯基芳族嵌段，EB- EPOX是由乙烯单元，环氧化丁烯和二烯单元组成的嵌段，其中环氧基的重量百分比为1％至40％，HT是由氢化和环氧化二烯单体单元和乙烯基芳族单元组成的渐缩共聚物链段其含量为0至20％，x为1至20的化合价。嵌段共聚物的平均分子量为30,000至400,000，聚乙烯基芳族嵌段的含量为10至50重量％，和（E1-B1-EPOX1）+（E2-B2-EPOX2）嵌段的含量为90〜50重量％（E1-B1-EPOX1）与（E2-B2-EPOX2）之间的重量比为0.1〜1.0。这些聚合物用于制备基于聚酰胺，聚碳酸酯，聚酯等工程聚合物的聚合物组合物，改善其物理性能，最重要的是它们的冲击强度，以及与油和烃树脂的混合物，以制备具有优异极性粘合性的材料。

9. 发明授权

US5314951A Branched block, copolymer, procedures for its preparation and use 失效
标题翻译：支链嵌段，共聚物，其制备和使用程序
公开(公告)号：US5314951A
公开(公告)日：1994-05-24
申请号：US53201
申请日：1993-04-28
申请人： Sergio Custro , Alessandro Zazzetta
发明人： Sergio Custro , Alessandro Zazzetta
IPC分类号： C08F297/04 , C08L23/02 , C08L53/02
CPC分类号： C08F297/044 , C08L23/02
摘要： A branched block copolymer is described, which can be defined by the formula (B.sub.1 --T--A--B.sub.2).sub.n X, where B.sub.1 and B.sub.2 are polydiene blocks, A is an aromatic polyvinyl block, T is a random copolymer segment made up of dienic monomeric and aromatic vinyl units, X is a coupling radical having a valence equal to n, and n is a whole number ranging from 3 to 20.This kind of block copolymer is used in formulations of adhesives having an excellent balance of adhesive, cohesive, rheological characteristics, as well as resistance to heat oxidation, and in compositions together with thermoplastic polymers capable of giving products with improved shock resistance and transparency.
摘要翻译：描述了可由式（B1-TA-B2）nX定义的支链嵌段共聚物，其中B1和B2是聚二烯嵌段，A是芳族聚乙烯基嵌段，T是由二烯单体和芳族乙烯基单元，X是价数等于n的偶联基团，n是3至20的整数。这种嵌段共聚物用于具有优异的粘合剂平衡，粘合性，流变特性的粘合剂配方中，以及耐热氧化性，以及组合物与能够产生具有改善的抗冲击性和透明性的产品的热塑性聚合物。

10. 发明授权

US5290872A Branched and hydrogenated block copolymer, procedures for its preparation and use 失效
标题翻译：分支和氢化嵌段共聚物，其制备和使用程序
公开(公告)号：US5290872A
公开(公告)日：1994-03-01
申请号：US734774
申请日：1991-07-23
申请人： Sergio Custro , Gian T. Viola
发明人： Sergio Custro , Gian T. Viola
IPC分类号： C08F8/04 , C08F8/00 , C08F297/02 , C08F297/04
CPC分类号： C08F297/044 , C08F8/00
摘要： A branched and hydrogenated block copolymer can be defined by the formula [(EB).sub.1 --HT--A--(EB).sub.2 ].sub.n X, where (EB).sub.1 and (EB).sub.2 are hydrogenated polydiene blocks, A is a polyvinylaromatic block, HT is a random copolymer segment made up of hydrogenated dienic monomeric and vinylaromatic units, X is a coupling radical having a valence equal to n, and n is a whole number ranging from 3 to 20.This kind of block copolymer shows excellent mechanical characteristics and resistance to atmospheric agents, even when used in combination with other resins.
摘要翻译：支化氢化嵌段共聚物可以由式（（EB）1-HT-A-（EB）2）nX定义，其中（EB）1和（EB）2是氢化聚二烯嵌段，A是聚乙烯基芳族嵌段， HT是由氢化二烯单体和乙烯基芳族单元组成的无规共聚物链段，X是价态等于n的偶联基团，n为3至20的整数。这种嵌段共聚物显示出优异的机械特性和即使与其他树脂组合使用也能抵抗大气污染物。

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