Patent search ap:("SNIA VISCOSA") AND inv:"MESSINA GIUSEPPE" Page 1

1.

发明授权
Method for the preparation and use of a catalyst for the production of polyesters, more particularly high molecular weight linear polyesters and catalyst thus obtained 失效
Title translation: 制备和使用催化剂生产聚酯的方法，更特别高分子量线性聚酯和催化剂

公开(公告)号：US3624043A

公开(公告)日：1971-11-30

申请号：US3624043D

申请日：1968-12-16

Applicant: SNIA VISCOSA

Inventor： SICLARI FRANCESCO , MESSINA GIUSEPPE , HORAK EDGARDO

IPC: B01J37/00 , C08G63/86 , C08G17/00

CPC classification number: C08G63/866 , B01J37/00 , B01J37/0009

Abstract: Method for the preparation of finely and evenly divided elemental antimony for use as catalyst in polyester manufacturing, wherein powdered antimony is subjected to mechanical size reduction operations, and then is dispersed in a liquid medium.

2.

发明授权
Purification of caprolactam obtained by nitrosation of cyclohexyl compounds 失效
Title translation: 通过环己基化合物硝化获得的捕获剂的纯化

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

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