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

US3978120A Method for the production of alicyclic anhydrides 失效
标题翻译：生产非水性无机盐的方法
公开(公告)号：US3978120A
公开(公告)日：1976-08-31
申请号：US550262
申请日：1975-02-18
申请人： Giancarlo Sioli , Luigi Giuffre , Franco Righi , Giancarlo Matera
发明人： Giancarlo Sioli , Luigi Giuffre , Franco Righi , Giancarlo Matera
IPC分类号： C07C51/56
CPC分类号： C07C49/88 , C07C45/89 , C07C51/56
摘要： A method is disclosed for the preparation of alicyclic anhydrides, useful intermediates in the preparation of alicyclic ketenes which can be converted into lactams. The instant method comprises heat-treating an alicyclic acid in a metallic reactor, free of nickel, under subatmospheric pressure. A catalyst, such as an alkyl ester of selenphosphoric acid, has given good results.

2. 发明授权

US4224210A Fiber from acrylonitrile copolymers having reduced inflammability, compositions and processes for manufacturing the same 失效
标题翻译：具有降低的易燃性的丙烯腈共聚物的纤维，组合物及其制造方法
公开(公告)号：US4224210A
公开(公告)日：1980-09-23
申请号：US953971
申请日：1978-10-19
申请人： Giorgio Cazzaro , Giancarlo Matera , Domenico Malgeri , Antonino Cavallaro
发明人： Giorgio Cazzaro , Giancarlo Matera , Domenico Malgeri , Antonino Cavallaro
IPC分类号： D01F6/40 , D06M15/285 , D06M15/31 , C08K5/20 , C08L33/20
CPC分类号： D06M15/285 , D01F6/40 , D06M15/31
摘要： Textile fibers having reduced inflammability and high luster, constituted copolymers of acrylonitrile, vinylidene chloride and a significantly homopolymerizable sulphonic comonomer are described. Significantly homopolymerizable comonomers are defined as monomers which homopolymerize with a conversion above 30.degree.-40.degree. under standard conditions set forth in the specification. A preferred class of such comonomers are the derivatives of acrylamidoalkanesulphonic acids, e.g. 2-acrylamido-2-methylpropane-sodium sulphonate. The fibers are spun from spinning dopes containing said copolymers in solution in organic solvent miscible with water and less than 4% of water. Said spinning dopes can be obtained by preparing a binary copolymer of acrylonitrile and the sulphonic monomer, in solution in the solvent, mixing the solution with a solution of acrylonitrile and vinylidene monomers in the same solvent, and subjecting the mixture to copolymerization. The copolymers finally obtained contain 50-85% of acrylonitrile, 13.5-46.5% of vinylidene chloride, and 1.5-3.5% of the sulphonic comonomer, the percentages being by weight.
摘要翻译：描述了由丙烯腈，偏二氯乙烯和显着均聚的磺酸共聚单体的共聚物构成的具有降低的易燃性和高光泽性的纺织纤维。明显均匀的共聚单体被定义为在说明书中规定的标准条件下以30°-40°以上的转化率均聚的单体。一类优选的共聚单体是丙烯酰氨基烷基磺酸的衍生物，例如 2-丙烯酰胺基-2-甲基丙烷磺酸钠。纤维由含有所述共聚物的纺丝剂在溶液中从与水混合的有机溶剂和小于4％的水中纺丝。所述纺丝剂可以通过在溶剂溶液中制备丙烯腈和磺酸单体的二元共聚物，将溶液与丙烯腈和亚乙烯基单体的溶液在同一溶剂中混合，并使混合物共聚得到。最终获得的共聚物包含50-85％的丙烯腈，13.5-46.5％的偏二氯乙烯和1.5-3.5％的磺酸共聚单体，百分比是重量百分数。

3. 发明授权

US4226824A Process for spinning modacrylic fiber having high retraction and reduced inflammability 失效
标题翻译：具有高回缩和降低易燃性的改性聚丙烯腈纤维的纺丝方法
公开(公告)号：US4226824A
公开(公告)日：1980-10-07
申请号：US905032
申请日：1978-05-09
申请人： Giorgio Cazzaro , Domenico Malgeri , Giancarlo Matera , Antonino Cavallaro
发明人： Giorgio Cazzaro , Domenico Malgeri , Giancarlo Matera , Antonino Cavallaro
IPC分类号： D01F6/40 , D01F6/18
CPC分类号： D01F6/40
摘要： Modacrylic fibers having high retraction, reduced inflammability and high glossiness, prepared by wet spinning a solution, in an organic spinning solvent miscible with water, of a mixture of copolymers from acrylonitrile, vinylidene chloride, at least a vinyl ester and at least an unsaturated monomer containing at least a sulphonic group, the acrylonitrile units being from 50% to 85% by weight and the vinyl ester units from 3% to 6% by weight; hot drawing the coagulated fiber in a mixture of water and spinning solvent; drying the fiber in hot air while leaving it free concurrently to contract; and subsequently further hot drawing it in air.
摘要翻译：由丙烯腈，偏二氯乙烯，至少一种乙烯基酯和至少一种不饱和单体的共聚物的混合物的混合物，通过在与水混溶的有机纺丝溶剂中湿法纺丝制备的具有高退缩，降低的易燃性和高光泽度的改性聚丙烯腈纤维至少含有磺酸基团，丙烯腈单元为50〜85重量％，乙烯基酯单元为3〜6重量％在水和纺丝溶剂的混合物中热凝固纤维; 在热空气中干燥纤维同时释放; 并随后在空气中进一步热拔。

4. 发明授权

US4223108A Glossy fibres of the modacrylic type having reduced inflammability, and compositions of matter and process for producing the same 失效
标题翻译：具有降低的易燃性的改性聚丙烯酸类型的光泽纤维和物质的组成及其制备方法
公开(公告)号：US4223108A
公开(公告)日：1980-09-16
申请号：US847746
申请日：1977-11-02
申请人： Giorgio Cazzaro , Giancarlo Matera , Antonino Cavallaro , Marina Zani
发明人： Giorgio Cazzaro , Giancarlo Matera , Antonino Cavallaro , Marina Zani
IPC分类号： D01F6/40 , C08L33/20 , C08L41/00
CPC分类号： D01F6/40
摘要： Modacrylic fibres from acrylonitrile, vinylidene chloride, and a sulphona comonomer, having reduced inflammability and high glossiness and dye yield are prepared by wet spinnning a polybend obtained by mixing two binary copolymers, the first from acrylonitrile and the sulphonated comonomer, and the second from acrylonitrile and vinylidene chloride. As the sulphonated comonomer, a significantly homopolymerizable monomer is used, viz. a monomer which homopolymerizes with a conversion of at least 30-40% by weight, in the presence of azobisisobutyronitrile catalyst, under given standard reaction conditions. Preferred sulphonated monomers are acid or salts of the acrylamidoalkanesulphonic series. The spinning dope is a polyblend solution in an organic solvent chosen among dimethylformamide, dimethylacetamide, and dimethylsulphoxide, mixed with water.
摘要翻译：通过湿法纺丝通过混合两种二元共聚物获得的聚苯乙烯制备的丙烯腈，偏二氯乙烯和磺化共聚单体的改性聚丙烯腈纤维，其中第一种是丙烯腈和磺化的共聚单体，第二种是丙烯腈和偏二氯乙烯。作为磺化共聚单体，使用显着均匀聚合的单体，即，在偶氮二异丁腈催化剂的存在下，在给定的标准反应条件下，均匀聚合至少30-40重量％转化率的单体。优选的磺化单体是丙烯酰氨基烷磺酸系列的酸或盐。纺丝原液是在二甲基甲酰胺，二甲基乙酰胺和二甲基亚砜中的有机溶剂中的混合溶液，与水混合。

5. 发明授权

US4287148A Process for producing glossy fibres of the modacrylic type having reduced inflammability 失效
标题翻译：具有降低的易燃性的改性聚丙烯酸类型的光泽纤维的制造方法
公开(公告)号：US4287148A
公开(公告)日：1981-09-01
申请号：US143100
申请日：1980-04-23
申请人： Giorgio Cazzaro , Giancarlo Matera , Antonino Cavallaro , Marina Zani
发明人： Giorgio Cazzaro , Giancarlo Matera , Antonino Cavallaro , Marina Zani
IPC分类号： D01F6/40 , C08L33/20 , C08L41/00
CPC分类号： D01F6/40
摘要： Modacrylic fibres from acrylonitrile, vinylidene chloride, and a sulphonated comonomer, having reduced inflammability and high glossiness and dye yield are prepared by wet spinning a polyblend obtained by mixing two binary copolymers, the first from acrylonitrile and the sulphonated comonomer, and the second from acrylonitrile and vinylidene chloride. As the sulphonated comonomer, a significantly homopolymerizable monomer is used, viz. a monomer which homopolymerizes with a conversion of at least 30-40% by weight, in the presence of azobisisobutyronitrile catalyst, under given standard reaction conditions. Preferred sulphonated monomers are acid or salts of the acrylamidoalkanesulphonic series. The spinning dope is a polyblend solution in an organic solvent chosen among dimethylformamide, dimethylacetamide, and dimethylsulphoxide, mixed with water.
摘要翻译：通过将通过混合两种二元共聚物获得的聚合物湿法纺丝，其中丙烯腈，偏二氯乙烯和磺化共聚单体具有降低的易燃性和高光泽度和染料产率，其中第一种是丙烯腈和磺化的共聚单体，第二种是丙烯腈和偏二氯乙烯。作为磺化共聚单体，使用显着均匀聚合的单体，即，在偶氮二异丁腈催化剂的存在下，在给定的标准反应条件下，均匀聚合至少30-40重量％转化率的单体。优选的磺化单体是丙烯酰氨基烷磺酸系列的酸或盐。纺丝原液是在二甲基甲酰胺，二甲基乙酰胺和二甲基亚砜中的有机溶剂中的混合溶液，与水混合。

6. 发明授权

US4285900A Process for manufacturing modacrylic fibers having high luster, thermal stability and flame resistance 失效
标题翻译：具有高光泽，热稳定性和阻燃性的改性聚丙烯腈纤维的制造方法
公开(公告)号：US4285900A
公开(公告)日：1981-08-25
申请号：US125236
申请日：1980-02-27
申请人： Giorgio Cazzaro , Antonino Cavallaro , Antonio Salan , Giancarlo Matera
发明人： Giorgio Cazzaro , Antonino Cavallaro , Antonio Salan , Giancarlo Matera
IPC分类号： C08J3/215 , D01F1/07 , D01F6/18 , D01F6/40 , D01F6/54
CPC分类号： C08J3/215 , D01F1/07 , D01F6/40 , D01F6/54 , C08J2333/20
摘要： A method for preparing flame-resisting modacrylic fibers containing pentaent antimony oxide is described wherein the antimony oxide is suspended in a mixture of water and an organic solvent selected from dimethylformamide and dimethylacetamide and the suspension is then mixed with the viscose solution of the modacrylic polymeric material to be spun. The process yield high luster, flame-resisting modacrylic fibre of the "L.O.I. uprated" type.
摘要翻译：描述了一种制备含有五价氧化锑的阻燃改性聚丙烯腈纤维的方法，其中将氧化锑悬浮在水和选自二甲基甲酰胺和二甲基乙酰胺的有机溶剂的混合物中，然后将悬浮液与改性聚丙烯酸聚合物材料的粘胶溶液要旋转该方法产生“L.O.I.升级”型的高光泽，耐火变性聚丙烯腈纤维。

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