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公开(公告)号：US3563796A
公开(公告)日：1971-02-16
申请号：US3563796D
申请日：1966-05-27
摘要： PROCESS FOR THE PREPARATION OF RESINOUS FILMS HAVING EXCELLENT MECHANICAL AND SOLVENT RESISTANT PROPERTIES COMPRISING FORMING A FILM IN THE PRESENCE OF AN ACID OF AN ACETAL OF A POLY-(ALPHA, BETA-ETHYLENICALLY UNSATURATED) ALDEHYDE AND HEATING THE RESULTING FILM AT A TEMPERATURE OF FROM ABOUT 70*C. TO ABOUT 280*C.
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公开(公告)号：US3848021A
公开(公告)日：1974-11-12
申请号：US28272072
申请日：1972-08-22
申请人： HOECHST AG
CPC分类号： C08L59/02 , C08L59/00 , C08L2666/22
摘要： 1. PROCESS FOR THE MANUFACTURE OF A THERMOPLASTIC MOLDING COMPOSITION ON THE BASIS OF POLY(OXYMETHYLENES), WHICH COMPRISES MIXING (A) FROM 99.9 TO 80 WEIGHT PERCENT OF A LINEAR POLY (OXYMETHYLENE), WHICH MAY CONTAIN UP TO 20 WEIGHT PERCENT, RELATIVE TO THE SAID POLY(OXYMETHYLENE), OF OXYALKYLENE GROUPS HAVING FROM 2 TO 8 ADJACENT CARBON ATOMS, AND (B) FROM 0.01 TO 20 WEIGHT PERCENT OF A POLY(OXYMETHYLENE) CONTAINING FROM 0.1 TO 30 WEIGHT PERCENT, RELATIVE TO THE SAID POLY(OXYMETHYLENE), OF POLYETHER SEGMENTS DERIVED FROM CYCLIC ETHERS HAVING 3 TO 5 RINGMEMBERS AND HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF AT LEAST 500, AND UP TO 20 WEIGHT PERCENT OF OXYALKYLENE GROUPS HAVING FROM 2 TO 8 ADJACENT CARBON ATOMS, EACH OF THE COMPONENTS BEING IN A PULVERULENT OR GRANULATED FORM AT A TEMPERATURE BELOW 100*C., AND SUBSEQUENTLY MELTING AND HOMOGENIZING THE MIXTURE IN A MIXING DEVICE AT A TEMPERATURE OF FROM 150* TO 250*C., AND THEN REMOVING IT FROM THE MIXING DEVICE.
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公开(公告)号：US3705849A
公开(公告)日：1972-12-12
申请号：US3705849D
申请日：1971-02-22
CPC分类号： C10G65/04
摘要： A PROCESS FOR DESULFURIZATION OF A RESIDUUM FEED MATERIAL AT LOW SEVERITIES WHEREIN THE CONVERSION OF 975* F.+ MATERIALS IN THE FEED IS LESS THAN 50%, UTILIZING A SERIES OF EBULLATED CATALYTIC BED HYDROGENATION REACTORS.
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5.发明授权Lubricating oil base stock production by hydrocracking two separat feed-stocks 失效通过两台分离式进料油进行润滑油基础生产
公开(公告)号：US3649518A
公开(公告)日：1972-03-14
申请号：US3649518D
申请日：1970-04-02
发明人： WATKINS CHARLES H
IPC分类号： C08G37/02
摘要： A MULTIPLE-STAGE PROCESS FOR PORDUCING LUBRICATING OIL BASE STOCKS HAVING VISCOSITY INDICES GREATER THAN ABOUT 100. THE HEAVIER PORTION OF THE CARGE STOCK, HAVING AN INITIAL BOILING POINT IN THE RANGE OF ABOUT 800*F.TO ABOUT 925*F., IS SEPARATELY PROCESS IN A FIRST STAGE. THE FROT END OF THE RESULTING PRODUCT EFFUENT IS PROCESED IN A SECOND STAGE, IN ADMIXTURE WITH THE LIGHTER PORTION OF THE CHARGE STOCK HAVING AN END BOILING POINT IN THE RANGE OF ABOUT 800*F. TO ABOUT 925*F. A SERIES OF SEPARATION STEPS IS EMPLOYED TO RECOVER THE LUBRICATING OIL BASE STOCK WHILE CONCENTRATING A HIGH VISCOSITY INDEX BRIGHT STOCK
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6.发明授权Modified homo- and copolymers of formaldehyde or trioxane and process for their manufacture 失效甲醛或三聚氰胺的改性共聚物及其制备方法
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公开(公告)号：US3450665A
公开(公告)日：1969-06-17
申请号：US3450665D
申请日：1965-05-24
申请人： CELANESE CORP
发明人： WAGNER HERMAN L , HARDY GEORGE F
CPC分类号： C08J5/10 , C08J2359/02 , C08K7/14 , C08L59/02
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