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1.发明授权
公开(公告)号：US3798299A
公开(公告)日：1974-03-19
申请号：US3798299D
申请日：1972-04-19
Applicant: HOECHST AG
Inventor： GUMM P , KRUBIG K , LOHMANN J , ZIMMERMANN J
CPC classification number: B29C66/1122 , B21D39/031 , B29C47/0021 , B29C47/0028 , B29C47/0033 , B29C47/004 , B29C47/0054 , B29C65/56 , B29C65/607 , B29C66/112 , B29C66/131 , B29C66/21 , B29C66/43 , B29C66/438 , B29C66/71 , B29C66/73921 , B29C66/8161 , B29C66/8227 , B29C66/8242 , B29C66/8322 , B29C66/83411 , B29C66/83511 , B29C69/00 , B29D24/008 , E04C2/322 , B29K2023/04 , B29K2023/10 , B29K2025/04 , B29K2069/00 , B29K2027/06 , B29K2033/12 , B29K2025/06 , B29K2023/12 , B29K2023/06 , B29K2023/00
Abstract: A process for manufacturing a structure is described which consists of corrugated and a flat sheet or film of thermoplastic material, which sheets are positively connected by matching depressions with undercuts arranged along the grooves of the corrugated sheet and at corresponding points of the flat sheets. The structure is especially suited to make inserts for trickling-filter towers. Matching depression are produced simultaneously in the flat and the corrugated sheet in their areas of contact, and the depressions are then compressed whereby an undercut positive connection is formed. The device may be operated continuously or intermittently, its main part consisting of the tool for making the positive connections. Said tool comprises as the essential parts a series of female molds designed to fit in the grooves of the corrugated sheet, and a counteracting plug. In the female mold a spring-loaded punch is guided. To form the positive connections in the plug advances into the female mold against the spring-loaded punch, and thereby depressions are formed in the corrugated and the flat sheet which are guided one upon the other through the tool. As the plug retracts, the spring-loaded punch advances to compress the depressions whereby the undercut is formed and the sheets are firmly connected.
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2.发明授权Process for the preparation of compositions comprising polyvinyl alcohol and a finely dispersed solid 失效制备包含聚乙烯醇和精细分散固体的组合物的方法
公开(公告)号：US3829402A
公开(公告)日：1974-08-13
申请号：US32121673
申请日：1973-01-05
Applicant: HOECHST AG
Inventor： ZIMMERMANN J
IPC: C08F8/00 , C04B20/10 , C04B24/26 , C08F8/12 , C08F8/14 , C08K3/00 , C08L29/00 , C08L29/02 , C08L29/04 , C09D5/46 , C08F45/04
CPC classification number: C04B24/2623 , C04B20/1033 , C04B2103/54 , C08F8/14 , C04B14/00 , C04B14/365 , C08F18/04
Abstract: A PROCESS FOR THE PREPARATION OF COMPOSITIONS OF POLYVINYL ALCOHOL AND FINELY DISPERSED SOLIDS IS PROVIDED BY SUBJECTING A POLYVINYL ESTER TO HYDROLYSIS OR ALCOHOLYSIS IN THE PRESENCE OF A FINELY DISPERSED SOLID AND AN ACID OR ALKALINE CATALYST, REMOVING THE SOLVENTS AND DRYING THE RESULTING COMPOSITION.
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公开(公告)号：DK131810B
公开(公告)日：1975-09-08
申请号：DK344174
申请日：1974-06-26
Applicant: HOECHST AG
Inventor： ZIMMERMANN J
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公开(公告)号：SE305323B
公开(公告)日：1968-10-21
申请号：SE8761
申请日：1961-01-04
Applicant: HOECHST AG
Inventor： KAHRS K , ZIMMERMANN J
IPC: C08F283/06 , C08F27/08
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公开(公告)号：SE402233B
公开(公告)日：1978-06-26
申请号：SE514772
申请日：1972-04-20
Applicant: HOECHST AG
Inventor： GUMM P , KRUSSIG K-H , LOHMANN J , ZIMMERMANN J
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Patent Agency Ranking
公开(公告)号：DK344174A
公开(公告)日：1975-02-17
申请号：DK344174
申请日：1974-06-26
Applicant: HOECHST AG
Inventor： ZIMMERMANN J
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公开(公告)号：SE319301B
公开(公告)日：1970-01-12
申请号：SE542964
申请日：1964-04-30
Applicant: HOECHST AG
Inventor： KUEHLKAMP A , HEISKEL E , ZIMMERMANN J
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公开(公告)号：SE300513B
公开(公告)日：1968-04-29
申请号：SE618760
申请日：1960-06-23
Applicant: HOECHST AG
Inventor： KAHRS K , ZIMMERMANN J
IPC: C08F8/12 , C08F261/04 , C08F283/06 , C08F27/16
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公开(公告)号：SE7408324L
公开(公告)日：1974-12-30
申请号：SE7408324
申请日：1974-06-25
Applicant: HOECHST AG
Inventor： ZIMMERMANN J
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