-
1.发明授权Method for the continuous performance of esterification under thermal conditions 失效在热条件下进行纯化的连续性能的方法
公开(公告)号：US3787481A
公开(公告)日：1974-01-22
申请号：US3787481D
申请日：1969-04-07
Applicant: SNIA VISCOSA
CPC classification number: B01J19/1887 , B01J10/02 , B01J19/1881 , B01J2219/0009 , B01J2219/00094 , C07C67/08 , C07C67/54 , C07C69/82
Abstract: A DEVICE FOR CONTINUOUSLY PERFORMING CHEMICAL PROCESSES AND REACTIONS WHICH REQUIRE HEAT ADMINISTRATION FROM THE OUTSIDE AND ARE CONDUCTIVE TO THE EVOLUTION OF VOLATILE BY-PRODUCTS, SUCH AS THE PROCESSES LEADING TO THE PRODUCTION OF SPINNABLE POLYESTERS. THE DEVICE COMPRISES A REACTOR HAVING SUBSTANTIALLY VERTICAL METAL WALLS, MEANS FOR INTRODUCING THE REACTANT AND THE REACTED PRODUCT WHICH IS RECYCLED AT THE REACTOR TOP, CENTRIFUGING MEANS FOR HURLING THE PRODUCTS INTRODUCED AT THE TOP OF SAID WALLS FOR CAUSING THEM TO DESCEND IN THE FORM OF A LIQUID FILM THEREALONG, AND MEANS FOR RECYCLING A FRACTION OF THE PRODUCT WHICH HAS BEEN COLLECTED AT THE BASE OF THE REACTOR, TOWARDS THE TOP THEREOF. A CHEMICAL PROCESS UTILIZING SUCH A REACTOR AND INVOLVING THE REMOVAL OF THE BY-PRODUCTS, SET FREE IN THEIR VOLATILE FORM AT THE TOP OF THE REACTOR AS THEY ARE EVOLVED AND SET FREE FROM SAID LIQUID FILM.
-
2.发明授权Method for the production of synthetic polyamides, which comprises adding an aromatic aldehyde containing sulfonic acid groups to the reacting monomers 失效生产合成聚氨酯的方法，其中包含向反应性单体中加入含有磺酸基团的芳族醛
公开(公告)号：US3764585A
公开(公告)日：1973-10-09
申请号：US3764585D
申请日：1972-05-03
Applicant: SNIA VISCOSA
Inventor： SICLARI F , PERAZZONI P , SILVESTRONI P
Abstract: A method for obtaining synthetic polyamide yarns, more particularly polyamide yarns, is disclosed, which have a high affinity towards basic dyestuffs. The dyeability with basic dyestuffs is improved by adding to the polymerization mass, prior to, or during progress of, polymerization, an aromatic aldehyde having the general formula
WHEREIN M AND N ARE INTEGERS WHICH ARE 1 OR 2, THE GROUP SO3X indicates both a free sulphonic group or such a group salified with a member selected from the group consisting of ammonium ions, alkali metals and alkaline earth metals. Hypophosphorous acid, or an alkali metal salt thereof can also be added to improve the whiteness of the parts of the yarn or fabric which are not to be dyed.Abstract translation: 公开了一种用于获得合成聚酰胺纱线，更特别是聚酰胺纱线的方法，其对碱性染料具有高亲和力。 碱性染料的染色性通过在聚合过程中加入到聚合物质中，在聚合过程中或在进行聚合过程中改进了通式为M和N为1或2的整数的芳族醛，SO 3 X既表示自由基 磺酸基或这样的基团，其与选自铵离子，碱金属和碱土金属的成员成盐。
-
公开(公告)号：US3856833A
公开(公告)日：1974-12-24
申请号：US22726872
申请日：1972-02-17
Applicant: SNIA VISCOSA
IPC: C07C45/40 , C07C51/34 , C07C227/08 , C07D323/02 , C08H17/36
CPC classification number: C07D323/02 , C07C45/40 , C07C51/34 , C07C227/08 , C07C59/153 , C07C59/147
Abstract: A method is disclosed which permits obtaining bifunctional chemical compounds, such as acidic aldehydes from ozonides of olefins, the improvement consisting in that the peroxidic derivatives of the ozonides in question are subjected to transposition in a polar solvent and in the presence of a catalyst. The catalyst is preferably a basic substance such as an alkali metal salt or an alkali metal alcoholate, or also an organic base. The catalytic system may also comprise an organic acid anhydride, provided that it is soluble in the polar solvent aforesaid but cannot react therewith.
Abstract translation: 公开了一种方法，其可以获得双官能化学化合物，例如来自烯烃的臭氧化物的酸性醛，改进之处在于所述臭氧化物的过氧化物衍生物在极性溶剂中和在催化剂存在下进行转置。 催化剂优选为碱金属盐如碱金属盐或碱金属醇盐，也可为有机碱。 催化体系还可以包含有机酸酐，条件是其可溶于上述极性溶剂，但不能与其反应。
-
4.发明授权Method for the preparation of homogeneous meterable pastes and suspensions of phthalic acids and glycols,for feeding plants,more particularly continuous esterification plants 失效用于制备均匀的可食用浆料和磷酸酯和甘油的悬浮液的方法，用于饲喂植物，更特别的连续的植物
公开(公告)号：US3781213A
公开(公告)日：1973-12-25
申请号：US3781213D
申请日：1971-10-20
Applicant: SNIA VISCOSA
CPC classification number: C08G63/785 , Y02P20/582
Abstract: A METHOD AND AN APPARATUS ARE DISCLOSED FOR PREPARING PHTHALIC ACID-GLYCOL MIXTURES FOR ESTERIFICATION. A PROBLEM WHICH IS FREQUENTLY ENCOUNTERED IN PREPARING SUCH PASTE IS THE RETENTION OF THE HOMOGENEOUSNESS OF THEIR COM POSITION, ESPECIALLY IN CONTINUOUS ESTERIFICATION INSTALLATIONS. CONTRARY TO WIDELY ACCEPTED AND WELL ESTABILSIHED TECHNICAL VIEWS, IT HAS BEEN DISCOVERED THAT, BY KEEPING THE MIXTURES OR PASTES AT A COMPARATIVELY LOW TEMPERATURE, THE PREFERRED RANGE BEING BETWEEN 35*C. AND 20* C. THE PROBLEMS INDICATED ABOVE, AND OTHERS CONNECTED THEREWITH, ARE HAPPILY SOLVED AND THE UNDESIRABLE FORMATION OF LUMPS AND INCRUSTATIONS IS EFFETIELY PREVENTED.
-
5.发明授权
公开(公告)号：US3757077A
公开(公告)日：1973-09-04
申请号：US3757077D
申请日：1971-03-22
Applicant: SNIA VISCOSA
Inventor： SICLARI F , MAGNONI F , BIANUCCI G
CPC classification number: D01G1/025 , B23K26/1462
Abstract: A method and equipment for cutting slivers of continuous filaments of textile material into tuft fibres adapted for further spinning and twisting operations, wherein a continuous sliver formed by said filaments is advanced at a high speed in a plane and laser ray pulses are focalized on said plane in the form of a narrow window having a length greater than the width of said sliver, in order to cut the same into a plurality of tuft fibres having a predetermined length.
-
Patent Agency Ranking
公开(公告)号：IT1051360B
公开(公告)日：1981-04-21
申请号：IT2507774
申请日：1974-07-11
Applicant: SNIA VISCOSA
IPC: C08G20060101 , C08G
-
公开(公告)号：IT1049005B
公开(公告)日：1981-01-20
申请号：IT2880275
申请日：1975-10-30
Applicant: SNIA VISCOSA
Inventor： CANAVESI L , SICLARI F , ROSSI P
IPC: C07C51/235 , C07C51/25 , C07C
-
公开(公告)号：IT1048464B
公开(公告)日：1980-11-20
申请号：IT2843475
申请日：1975-10-20
Applicant: SNIA VISCOSA
Inventor： SICLARI F , ROSSI P , DE GAETANO M
IPC: C07C20060101 , C07C
-
公开(公告)号：YU36682B
公开(公告)日：1984-08-31
申请号：YU192274
申请日：1974-07-09
Applicant: SNIA VISCOSA
IPC: C08G69/00 , C07B61/00 , C07C51/00 , C07C51/34 , C07C51/367 , C07C59/147 , C07C59/74 , C07C67/00 , C07C227/00 , C07C227/06 , C07C227/08 , C07C227/16 , C07C229/08 , C07C229/30 , C07D323/02 , C08G63/06 , C08G69/08 , C08G69/14 , C07C59/28 , C07C53/22 , C07C59/18
-
公开(公告)号：SE422456B
公开(公告)日：1982-03-08
申请号：SE7409140
申请日：1974-07-11
Applicant: SNIA VISCOSA
IPC: C08G69/00 , C07B61/00 , C07C51/00 , C07C51/34 , C07C51/367 , C07C59/147 , C07C59/42 , C07C59/74 , C07C67/00 , C07C227/00 , C07C227/06 , C07C227/08 , C07C227/16 , C07C229/08 , C07C229/30 , C07D323/02 , C08G63/06 , C08G69/08 , C08G69/14 , C07C101/28 , C08G69/02
-
-
-
-
-
-
-
-
-
Search Results
37
records
(took 0.018 seconds)
