公开(公告)号：US3835124A

公开(公告)日：1974-09-10

申请号：US32556373

申请日：1973-01-22

Applicant: SNIA VISCOSA

Inventor： GIUFFRE L ,  SIOLI G ,  MATTONE R

IPC: C07D201/02 ,  C07C67/00 ,  C07C201/00 ,  C07C207/00 ,  C07C239/00 ,  C07C251/46 ,  C07D201/04 ,  C07D201/10 ,  C07D205/08 ,  C07D207/263 ,  C07D223/02 ,  C07D41/06

CPC classification number: C07D201/10

Abstract: A method for the preparation of omega lactams is disclosed, more particularly epsilon caprolactam or a precursor thereof (such as cyclohexanone oxime), using as the starting material a cyclomethylene ketene, with the simultaneous formation of side products such as cyclohexanecarboxylic acid, wherein an adduct is preliminarly formed between cyclomethylene ketene and sulphur dioxide. The adduct is then reacted with a nitrosating agent so as to obtain, under the appropriate reaction conditions, the expected lactam, more specifically epsilon caprolactam.

Abstract translation: 公开了制备ω内酰胺的方法，更特别的是ε己内酰胺或其前体（例如环己酮肟），其以起始材料为环亚甲基乙烯酮，同时形成副产物如环己烷羧酸，其中加合物 在环亚甲基乙烯酮和二氧化硫之间初步形成。 然后将加合物与亚硝化剂反应，以在适当的反应条件下获得预期的内酰胺，更具体地是ε己内酰胺。

公开(公告)号：US3788940A

公开(公告)日：1974-01-29

申请号：US3788940D

申请日：1969-07-11

Applicant: KANEGAFUCHI SPINNING CO LTD ,  SNIA VISCOSA

Inventor： OGATA F ,  NAGAMINE K

IPC: D01F8/12 ,  D02G3/00

CPC classification number: D01F8/12 ,  Y10S264/26 ,  Y10T428/2931 ,  Y10T428/31746

Abstract: COMPOSITE FILAMENTS OF A POLYOLEFIN AND A POLYAMIDE WHICH ARE HIGHLY CRIMPABLE WITHOUT SEPARATION OR CLEAVAGE ARE PRODUCED BY THE CONJUGATE SPINNING OF (1) A MOLTEN FIBER-FORMING POLYAMIDE SELECTED FROM THE GROUP CONSISTING OF NYLON-11 NYLON-12, NYLON-11.10, NYLON-11.11 AND NYLON-11.12 AND (2) A MOLTEN FIBER-FORMING POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE. THE CONJUGATE SPINNING RATIO OF THE TWO POLYMERIC MATERIALS WHICH ARE EMPLOYED TO FORM THE COMPOSITE FILAMENTS IS MAINTAINED BETWEEN 8:2 AND 2:8 RATIOS OUTSIDE SUCH RANGE INVOLVING DIFFICULTIES. ADDITIONALLY, IN USING HEAT TO EFFECT THE CRIMPING, THE TEMPERATURE IS MAINTAINED BETWEEN ABOUT 70* AND ABOUT 150*C.

公开(公告)号：US3669917A

公开(公告)日：1972-06-13

申请号：US3669917D

申请日：1970-07-27

Applicant: KANEGAFUCHI SPINNING CO LTD ,  SNIA VISCOSA

Inventor： ANDO SATOSHI ,  TANAKA YUSAKU ,  KOJIMA MINORU ,  FUJIMURA KYOICHI

IPC: C08K5/01 ,  C08G20/38

CPC classification number: C08K5/01 ,  C08L77/00

Abstract: A copolyamide fiber of reduced stickiness which consists essentially of a fibers forming copolyamide consisting of 70 - 95 percent by weight of polycaproamide polyhexamethylene adipamide and 30 - 5 percent by weight of at least one of comonomers copolymerizable therewith and from 0.01 to 5 percent by weight, based on the copolyamide, of at least one normal paraffin selected from the group consisting of methane series hydrocarbons represented by the formula CnH2n 2, wherein n is an integer of from 14 to 70, dispersed homogeneously throughout said copolyamide.

Abstract translation: 一种降低粘性的共聚酰胺纤维，其基本上由形成共聚酰胺的纤维组成，共聚酰胺由70-95重量％的聚己内酰胺聚己二酰己二胺和30-5重量％的可与其共聚的共聚单体和0.01-5重量％ 基于共聚酰胺，选自由式C n H 2n + 2表示的甲烷系烃的至少一种正链烷烃，其中n为14至70的整数，均匀地分散在所述共聚酰胺中。

公开(公告)号：US3629174A

公开(公告)日：1971-12-21

申请号：US3629174D

申请日：1970-02-25

Applicant: SNIA VISCOSA

Inventor： SICLARI FRANCESCO ,  PERAZZONI PIERLUIGI ,  SILVESTRONI PIER GIORGIO

IPC: C08G69/00 ,  C08G69/04 ,  C08K5/02 ,  C08L77/00 ,  D01F6/90 ,  C08G51/26 ,  C08G51/58 ,  C08G51/62

CPC classification number: C08K5/02 ,  C08L77/00

Abstract: IN THE MANUFACTURE OF POLYAMIDES FOR INDUSTRIAL USES IN GENERAL, SUCH AS FOR THE PRODUCTION OF FIBERS, YARNS MOULDED ARTICLES AND THE LIKE, THE IMPROVEMENT IS HEREIN DISCLOSED, WHICH CONSISTS IN THE CONCURRENT ADDITION OF A STABILIZING COPPER COMPOUND AND OF AN ALLYL HALIDE, IN WHICH THE HYDROGEN ATOM OF THE DOUBLE-BONDED METHYLENE GROUPING IS POSSIBLY SUBSTITUTED BY AN ALIPHATIC RADICAL. ALLYL CHLORDE HAS PROVEN TO BE THE MOST ADVANTAGEOUS IN ITS CLAS. VERY SUPRISINGLY, THE PRESENCE OF AN ALLYL CHLORIDE AS DEFINED ABOVE HAS EXHIBITED AN UNPREDICTABLE ACTIVITY IN NUETRALIZING THE DISCOLOURATION WHICH WOULD BE OTHERWISE EXPERIENCED SHOULD THE COPPER COMPOUND BE USED ALONE. PRODUCTS HAVING AN OUTSTANDINGLY HIGH WHITENESS RATING HAVE BEEN THUS OBTAINED.

公开(公告)号：US3554980A

公开(公告)日：1971-01-12

申请号：US60175766

申请日：1966-12-14

Applicant: KANEGAFUCHI SPINNING CO LTD ,  SNIA VISCOSA

Inventor： ANDO SATOSHI ,  TANAKA YUSAKU ,  KOJIMA MINORU ,  FUJIMURA KYOICHI

IPC: C08F255/00 ,  C08G69/36 ,  C08K5/01 ,  C08K5/098 ,  C08L77/00 ,  D01F6/60 ,  C08G20/38

CPC classification number: C08L77/00 ,  C08F255/00 ,  C08G69/36 ,  C08K5/01 ,  C08K5/098 ,  D01F1/10 ,  D01F6/80 ,  Y10S524/921 ,  C08L2666/04

Abstract: A COPOLYAMIDE COMPOSITION OF IMPROVED ELASTIC RECOVERY PROPERTIES, DYEABILITY, RESISTANCE TO STICKINESS AND HYGROSCOPICITY IN WHICH A POLYCONDENSATION PRODUCT OF AT LEAST TWO POLYAMIDE FORMING COMPOUNDS IS COMBINED WITH METAL SALTS OF MONOCRBOXYLIC AND DICARBOXYLIC ACID.

公开(公告)号：US3507856A

公开(公告)日：1970-04-21

申请号：US3507856D

申请日：1967-07-19

Applicant: SNIA VISCOSA

Inventor： SICLARI FRANCESCO ,  MADERNO CESANO ,  MESSINA GIUSEPPE ,  HORAK EDGARDO

IPC: C07D201/16 ,  C07D41/06

CPC classification number: C07D201/16

公开(公告)号：US3485663A

公开(公告)日：1969-12-23

申请号：US3485663D

申请日：1966-05-16

Applicant: SNIA VISCOSA

Inventor： DEBENEDETTI EMILIO ,  TAPPI VITTORIO

IPC: B01F17/00 ,  D06B3/04 ,  D06M13/02 ,  D06M13/188 ,  D06M13/224 ,  D06M13/368 ,  D06M1/00 ,  C08J1/36

CPC classification number: D06M13/224 ,  D06M7/00 ,  D06M13/188 ,  D06M2200/40 ,  Y10T428/2965

公开(公告)号：US3463616A

公开(公告)日：1969-08-26

申请号：US3463616D

申请日：1966-03-18

Applicant: SNIA VISCOSA

Inventor： CORRADI DEMETRIO ,  PASIN ALBERTO

IPC: C08F220/44 ,  B01D3/42 ,  B01D3/00

CPC classification number: C08F220/44 ,  Y10S203/19

公开(公告)号：US3448186A

公开(公告)日：1969-06-03

申请号：US3448186D

申请日：1964-04-13

Applicant: EMILIA MANFREDINI GIACOBONE ,  SNIA VISCOSA

Inventor： NICITA DOMENICO ,  MADERNO CESANO ,  PARMEGGIANI PAOLO ,  PERAZZONI PIERLUIGI ,  GIACOBONE PIERO

IPC: D01D5/08 ,  D01D5/084 ,  D01F6/60 ,  D01D5/10 ,  D02J1/22

CPC classification number: D01D5/084 ,  D01D5/08 ,  D01F6/60

公开(公告)号：US3436798A

公开(公告)日：1969-04-08

申请号：US3436798D

申请日：1966-10-10

Applicant: SNIA VISCOSA

Inventor： NICITA DOMENICO

IPC: D02J1/08 ,  D01G9/08

CPC classification number: D02J1/08