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1. 发明授权

US5086160A Thermotropic copolyester, process for preparing it and its use 失效
标题翻译：热成型共聚物，其制备方法及其用途
公开(公告)号：US5086160A
公开(公告)日：1992-02-04
申请号：US531756
申请日：1990-06-01
申请人： Ugo Pedretti , Bruno Bresci , Cesarina Bonfanti , Pier L. Magagnini , Francesco P. La Mantia , Arnaldo Roggero
发明人： Ugo Pedretti , Bruno Bresci , Cesarina Bonfanti , Pier L. Magagnini , Francesco P. La Mantia , Arnaldo Roggero
IPC分类号： C08G63/60 , C09K19/38 , D01F6/84
CPC分类号： D01F6/84 , C08G63/60 , C09K19/3809
摘要： A thermotropic copolyester, showing a liquid-crystalline structure of nematic type within a desired temperature range, contains umits deriving from:(a) a saturated bicarboxy aliphatic acid;(b) 4,4'-di-hydroxy-diphenyl,(c) 4-hydroxybenzoic acid; and(d) 4-hydroxy-benzoic acid bearing an alkyl substituent or a halogen atom bonded to the aromatic ring.Such a copolyester constitutes a material endowed with self-reinforcing characteristics, originating, through the usual transformation processes by injection or by extrusion techniques, marked molecular orientations, which supply the manufactured articles with high stiffness characteristics.Said material can be also used as a reinforcing agent when is mixed, by means of the usual techniques, with the traditional thermoplastic polymers.

2. 发明授权

US4970285A Thermotropic copolyester from mixture of hydroxy benzoic acids 失效
标题翻译：由羟基苯甲酸的混合物形成的热致伸缩共聚酯
公开(公告)号：US4970285A
公开(公告)日：1990-11-13
申请号：US358145
申请日：1989-05-30
申请人： Ugo Pedretti , Bruno Bresci , Cesarina Bonfanti , Pier L. Magagnini , Francesco P. La Mantia , Arnaldo Roggero
发明人： Ugo Pedretti , Bruno Bresci , Cesarina Bonfanti , Pier L. Magagnini , Francesco P. La Mantia , Arnaldo Roggero
IPC分类号： C08G63/60 , C09K19/38 , D01F6/84
CPC分类号： D01F6/84 , C08G63/60 , C09K19/3809
摘要： A thermotropic copolyester, showing a liquid-crystalline structure of nematic type within a desired temperature range, contains units deriving from:(a) a saturated bicarboxy aliphatic acid;(b) 4,4'-di-hydroxydipheryl;(c) 4-hydroxybenzoic acid; and(d) 4-hydroxy-benzoic acid bearing an alkyl substituent or a halogen atom bonded to the aromatic ring.Such a copolyester constitutes a material endowed with self-reinforcing characteristics, originating, through the usual transformation processes by injection or by extrusion techniques, marked molecular orientations, which supply the manufactured articles with high stiffness characteristics.Said material can be also used as a reinforcing agent when is mixed, by means of the usual techniques, with the traditional thermoplastic polymers.

3. 发明授权

US4963642A Thermotropic copolyester and process for preparing it and use thereof 失效
标题翻译：热致伸缩共聚酯及其制备方法及其用途
公开(公告)号：US4963642A
公开(公告)日：1990-10-16
申请号：US358167
申请日：1989-05-30
申请人： Arnaldo Roggero , Ugo Pedretti , Pier L. Magagnini , Enrico Montani , Hassan A. Hakemi , Bruno Bresci , Francesco P. La Mantia
发明人： Arnaldo Roggero , Ugo Pedretti , Pier L. Magagnini , Enrico Montani , Hassan A. Hakemi , Bruno Bresci , Francesco P. La Mantia
IPC分类号： C08G63/60 , C09K19/38 , D01F6/84
CPC分类号： D01F6/84 , C08G63/60 , C09K19/3809
摘要： A thermotropic copolyester, having a liquid-crystallne mesophase of nematic structure within a desired range of temperatures, contains units derived from:(a) a saturated aliphatic bicarboxy acid;(b) 4,4'-dihydroxy-biphenyl;(c) p-hydroxybenzoic acid; and(d) 2,6-hydroxynaphthoic acid.Such a thermotropic copolyester displays improved characteristics, in particular as regards its extensional modulus and its tensile strength, when is used as a self-reinforced material, or as a reinforcer material for traditional thermoplastic polymers.

4. 发明授权

US4833229A Thermotropic copolyester having a nematic structure of the liquid-crystalline phase 失效
标题翻译：具有液晶相的向列结构的热致变性共聚酯
公开(公告)号：US4833229A
公开(公告)日：1989-05-23
申请号：US167106
申请日：1988-03-11
申请人： Pierluigi Magagnini , Ugo Pedretti , Giovanni Perego , Bruno Bresci , Simona Carrozzino , Arnaldo Roggero
发明人： Pierluigi Magagnini , Ugo Pedretti , Giovanni Perego , Bruno Bresci , Simona Carrozzino , Arnaldo Roggero
IPC分类号： C08G63/64 , C08G63/60 , C08L67/02 , C08L69/00
CPC分类号： C08L67/02 , C08G63/60 , C08L69/00
摘要： A thermotropic copolyester, having a nematic structure of the liquid-crystalline phase within a desired range of mesophase temperature, contains units derived from a saturated aliphatic dicarboxylic acid, 4,4'-dihydroxy-biphenyl and p-hydroxybenzoic acid, in a mutual ratio of from 1:1:0.5 to 1:1:8.This thermotropic copolyester is produced by copolymerizing in the molten state a saturated aliphatic dicarboxylic acid, 4,4'-diacyloxybiphenyl and p-acyloxybenzoic acid.The use is disclosed of the thermotropic copolyester as a self-reinforced material, and as a reinforcer material for such traditional thermoplastic polymers as polybutylene terephthalate, polyethylene terephthalate, polycarbonate and nylon.

5. 发明授权

US4600756A High-orientability polyacetylene films and process for their production 失效
标题翻译：高取向性聚乙炔薄膜及其生产工艺
公开(公告)号：US4600756A
公开(公告)日：1986-07-15
申请号：US518397
申请日：1983-07-29
申请人： Ugo Pedretti , Giovanni Perego , Gabriele Lugli
发明人： Ugo Pedretti , Giovanni Perego , Gabriele Lugli
IPC分类号： C08F4/14 , C08F4/16 , C08F4/46 , C08F4/48 , C08F4/50 , C08F4/58 , C08F38/02 , H01B1/12
CPC分类号： C08F38/02 , H01B1/125
摘要： Novel polyacetylene films are disclosed, having the following properties:elongation at break (1/10): higher than 4tensile strength: higher than 100 MPaability of attaining under stretch high levels of molecular orientation in the direction of pull.The process for preparing such polyacetylene films is also described.
摘要翻译：公开了新颖的聚乙炔膜，具有以下特性：断裂伸长率（1/10）：高于4拉伸强度：高于拉伸强度拉伸高分子取向拉伸强度的100MPa能力。还描述了制备此类聚乙炔膜的方法。

6. 发明授权

US4429089A Polymerizing and copolymerizing diolefines, and means therefor 失效
标题翻译：聚合和共聚双烯类及其手段
公开(公告)号：US4429089A
公开(公告)日：1984-01-31
申请号：US283615
申请日：1981-07-15
申请人： Ugo Pedretti , Gabriele Lugli , Sergio Poggio , Alessandro Mazzei
发明人： Ugo Pedretti , Gabriele Lugli , Sergio Poggio , Alessandro Mazzei
IPC分类号： C08F4/00 , C08F20060101 , C08F4/54 , C08F4/60 , C08F4/62 , C08F36/00 , C08F36/04 , C08F4/72
CPC分类号： C08F36/04
摘要： A novel catalytic system is disclosed which is especially adapted for the polymerization and the copolymerization of aliphatic conjugated diolefines, the system comprising an organic compound of aluminum, a Lewis acid containing at least one halogen, and an organic compound of a lanthanide metal. The catalyst system has outstanding and hitherto unparalleled activity. The method of preparation of the catalytic system is also described in detail.
摘要翻译：公开了一种新的催化体系，其特别适用于脂族共轭二烯的聚合和共聚，该体系包含铝的有机化合物，含有至少一个卤素的路易斯酸和镧系金属的有机化合物。催化剂体系具有突出和迄今无与伦比的活性。还详细描述了催化体系的制备方法。

7. 发明授权

US5432248A Thermotropic polyesterimide, a process for its preparation, and its use 失效
标题翻译：热致聚酯酰亚胺，其制备方法及其用途
公开(公告)号：US5432248A
公开(公告)日：1995-07-11
申请号：US44214
申请日：1993-04-07
申请人： Cesarina Bonfanti , Alessandro Lezzi , Ugo Pedretti , Arnaldo Roggero , Francesco P. La Mantia
发明人： Cesarina Bonfanti , Alessandro Lezzi , Ugo Pedretti , Arnaldo Roggero , Francesco P. La Mantia
IPC分类号： C08G73/16
CPC分类号： C08G73/16
摘要： A thermotropic polyesterimide, in which the liquid-crystalline phase is of nematic structure within a useful temperature range, consists of units of formula: ##STR1## the units being in the following ratios:a/(b+c)=1c/b=0-50/50, and preferably c/b
摘要翻译：液晶相在可用温度范围内为向列型结构的热致聚酯酰亚胺由下列单元组成：（a）图像（a）图像（b）图像（c）以下比例：a /（b + c）= 1c / b = 0-50 / 50，优选c / b <30/70本发明的聚酯酰亚胺具有自增强特性或传统热塑性材料的增强特性。

8. 发明授权

US5070155A Semi-aromatic copolyamide or copolyester-amide prepared from aliphatic polyamide 失效
标题翻译：来自二胺聚酰胺的半芳族共聚酰胺或共聚酯酰胺
公开(公告)号：US5070155A
公开(公告)日：1991-12-03
申请号：US444824
申请日：1989-12-01
申请人： Ming-de Liu , Bruno Bresci , Pier L. Magagnini , Nicoletta Maurizi , Ugo Pedretti , Arnaldo Roggero
发明人： Ming-de Liu , Bruno Bresci , Pier L. Magagnini , Nicoletta Maurizi , Ugo Pedretti , Arnaldo Roggero
IPC分类号： C08G69/36 , C08G69/44
CPC分类号： C08G69/44 , C08G69/36
摘要： Semi-aromatic copolyamides and copolyester-amides are obtained by placing an aliphatic polyamide into contact with an aromatic hydroxyacid or aminoacid, by operating at high temperature, under melting conditions, possibly in the presence of a catalyst, with a ratio of the monomer units of aliphatic polyamide to the mols of aromatic hydroxyacid or aminoacid comprised within the range of from 20:1 to 1:1.The semiaromatic copolyamides and copolyester-amides so obtained can display a thermotropic liquid-crystal behaviour as a function of their content of aromatic units linked inside the molecular chain. Their elastic modulus results to be improved relatively to the alifatic polyamides used as the starting product, and the elongation at break results to be decreased.Such semiaromatic polyamides and copolyester-amides can find application in the production of high-stiffness articles, by means of moulding or extrusion processes. They can also be used as blends with the usual thermoplastic polymers, in which they act as reinforcer or compatibilizer agents.

9. 发明授权

US5219953A Catalytic preparation of semi-aromatic copolyamides and copolyester-amides 失效
标题翻译：催化制备半芳族共聚酰胺和共聚酯酰胺
公开(公告)号：US5219953A
公开(公告)日：1993-06-15
申请号：US605342
申请日：1990-10-30
申请人： Ming-de Liu , Bruno Bresci , Pier L. Magagnini , Nicoletta Maurizi , Ugo Pedretti , Arnaldo Roggero
发明人： Ming-de Liu , Bruno Bresci , Pier L. Magagnini , Nicoletta Maurizi , Ugo Pedretti , Arnaldo Roggero
IPC分类号： C08G69/36 , C08G69/44
CPC分类号： C08G69/36 , C08G69/44
摘要： Semi-aromatic copolyamides and copolyester-amides are obtained by placing an aliphatic polyamide into contact with an aromatic hydroxyacid or aminoacid, by operating at high temperature, under melting conditions, possibly in the presence of a catalyst, with a ratio of the monomer units of aliphatic polyamide to the mols of aromatic hydroxyacid or aminoacid comprised within the range of from 20:1 to 1:1.The semiaromatic copolyamides and copolyester-amides so obtained can display a thermotropic liquid-crystal behavior as a function of their content of aromatic units linked inside the molecular chain. Their elastic modulus results to be improved relatively to the alifatic polyamides used as the starting product, and the elongation at break results to be decreased.Such semiaromatic polyamides and copolyester-amides can find application in the production of high-stiffness articles, by means of moulding or extrusion processes. They can also be used as blends with the usual thermoplastic polymers, in which they act as reinforcer or compatibilizer agents.
摘要翻译：半芳族共聚酰胺和共聚酯酰胺通过将脂族聚酰胺与芳族羟基酸或氨基酸接触，通过在熔融条件下，可能在催化剂存在下在高温下操作而获得，单体单元的比例脂族聚酰胺与芳族羟基酸或氨基酸的摩尔比在20:1至1:1的范围内。如此获得的半芳族共聚酰胺和共聚酯酰胺可以显示出热分散性液晶的性质，作为其分子链内连接的芳族单元的含量的函数。它们的弹性模量相对于用作起始产物的聚酰胺酰胺相对改善，断裂伸长率降低。这种半芳族聚酰胺和共聚酯酰胺可以通过模塑或挤出方法应用于高刚度制品的生产中。它们也可以用作与通常的热塑性聚合物的共混物，其中它们用作增强剂或增容剂。

10. 发明授权

US5175196A Hollow fibres of modified poly-(2,6-dimethyl-p-oxy-phenylene) 失效
标题翻译：改性聚（2-二甲基苯氧基苯基）的中空纤维
公开(公告)号：US5175196A
公开(公告)日：1992-12-29
申请号：US897884
申请日：1992-06-12
申请人： Alessandro Stopponi , Claudio Demofonti , Claudio Valentini , Raffaello Sisto , Ugo Pedretti
发明人： Alessandro Stopponi , Claudio Demofonti , Claudio Valentini , Raffaello Sisto , Ugo Pedretti
IPC分类号： B01D69/08 , B01D71/52 , C08G65/48 , D01D5/24 , D01F6/00 , D01F6/78
CPC分类号： B01D71/52 , B01D69/08 , C08G65/485
摘要： A hollow fiber of amorphous, hydroxy-ethylated poly-(2,6-dimethyl-p-oxyphenylene) (PPO-OH) with a glass transition temperature (Tg) of from 180.degree. to 200.degree. C. is disclosed, which is formed by a high-density, microporous layer on a macroporous backing, and having an outer diameter comprised within the range of from 450 to 550 .mu.m and an inner diameter comprised within the range of from 250 to 400 .mu.m.The process for preparing the hollow fibre and the use of said fibre in the processes of separation of gas mixtures are disclosed as well.

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