公开(公告)号：US3778422A

公开(公告)日：1973-12-11

申请号：US3778422D

申请日：1971-05-17

申请人： TENNECO CHEM

发明人： FARBER E ,  ROSEN M ,  SHAH A

IPC分类号： C08F14/06 ,  C08F3/22

CPC分类号： C08F14/06 ,  C08F2/18

摘要： THE POLYMERIZATION OF VINYL HALIDE IS CARRIED OUT IN AN AQUEOUS MEDIUM IN THE PRESENCE OF AN ORGANIC PEROXYDICARBONATED AND A VERY SMALL AMOUNT OF AN ALKYL HYDROPEROXIDE.

公开(公告)号：US3755281A

公开(公告)日：1973-08-28

申请号：US3755281D

申请日：1971-05-17

申请人： ICI AUSTRALIA LTD

发明人： BUSBY B ,  HUGHES D

IPC分类号： B01J8/10 ,  C08F2/00 ,  C08F2/02 ,  C08F259/04 ,  C08F3/22

CPC分类号： C08F2/02 ,  B01J8/10 ,  C08F259/04 ,  Y10S526/909 ,  Y10S526/918 ,  C08F214/06

摘要： A process of manufacturing particles which process comprises the following steps in combination A. FEEDING INTO A CLOSED REACTOR A NUTRIENT, A RECYCLE OF PARTICLES FROM STEP (C) AND OPTIONALLY ADDING SEED MATERIAL; B. ALLOWING THE RECYCLED PARTICLES TO GROW INTO LARGER PARTICLES AND SEPARATING THE RESULTANT PARTICLES INTO SIZED FRACTIONS; AND C. RECYCLING PARTICLES OF LESS THAN A CERTAIN PREDETERMINED SIZE TO STEP (A) AND REMOVING PARTICLES LARGER THAN A CERTAIN PREDETERMINED SIZE AS PRODUCT. Apparatus wherein this process may be carried out is also described.

摘要翻译： 制造颗粒的方法包括以下步骤组合A.将步骤（C）和选择性添加的种子材料送入封闭的反应器营养物，回收颗粒物; B.允许回收颗粒生长成较大的颗粒并将成分颗粒分离成尺寸分布; 和C.将少于一定预定尺寸的颗粒循环至步骤（A），并将颗粒除去某些预定尺寸作为产品的颗粒。

公开(公告)号：US3752789A

公开(公告)日：1973-08-14

申请号：US3752789D

申请日：1971-08-20

申请人： DU PONT

发明人： KHAN A

IPC分类号： C08L27/12 ,  C08F2/22 ,  C08F6/22 ,  C08F14/00 ,  C08F14/18 ,  C08J3/16 ,  C08L1/00 ,  C08L27/00 ,  C08F1/13 ,  C08F3/22 ,  C08F15/06

CPC分类号： C08J3/16 ,  C08F6/22 ,  C08J2327/18

摘要： WASHED AND DRIED FLUOROPOLYMER PARTICLES FREE OF ANY HARMFUL IMPURITIES CAN BE PREPARED EFFICIENTLY FROM A LATEX BY A PROCESS WHICH COMPRISES THE FOLLOWING STEPS: (A) PROVIDING A LATEX OF A NORMALLY SOLID FLUOROPOLYMER (E.G., AN ELASTOMERIC COPOLYMER OF TETRAFLUOROETHYLENE AND A SUITABLE ETHER OR OLEFIN MONOMER), (B) MIXING THE LATEX WITH A COAGULATING AGENT (E.G., MAGNESIUM CHLORIDE) AND OPTIONALLY WITH AN ALIPHATIC ALCOHOL, (C) PASSING THE RESULTING SLURRY INTO A FIRST HOT WATER BATH WHILE PASSING STEAM THEREIN IN CONTACT WITH THE FLUOROPOLYMER TO FORM FLOATING EASY-TO-FILTER FLUOROPOLYMER PARTICLES, (D) PASSING THE FLOATING FLUOROPOLYMER PARTICLES INTO AT LEAST A SECOND HOT WATER BATH, AND (E) REMOVING WATER FROM THE RESULTING FLOATING AND WASHED FLUOROPOLYMER PARTICLES, FOR EXAMPLE, BY MEANS OF A FILTER AND A DRYING OVEN.

公开(公告)号：US3707592A

公开(公告)日：1972-12-26

申请号：US3707592D

申请日：1970-01-15

申请人： KUREHA CHEMICAL IND CO LTD

发明人： ISHII HAJIME ,  BANNAI NOBUO ,  NISHITA SADAO

IPC分类号： C08F14/22 ,  C08J5/18 ,  C08L27/16 ,  D01F6/12 ,  C08F3/22 ,  D01D5/12

CPC分类号： C08J5/18 ,  C08F14/22 ,  C08F2438/01 ,  C08J2327/16 ,  C08L27/16 ,  D01F6/12 ,  Y10S264/73 ,  Y10S428/91 ,  Y10T428/3154 ,  C08F2/16

摘要： VINYLIDENE FLUORIDE POLYMERS HAVING A CRYSTALLIZATION TEMPERATURE ABOVE 135*C. AND A MELTING TEMPERATURE ABOVE 175*C. ARTICLES SUCH AS FIBERS, FILMS, ETC., MADE FROM SUCH POLYMERS, HAVE EXCELLENT HEAT-RESISTANT PROPERTIES AND HIGH MECHANICAL STRENGTH. THE AFOREMENTIONED POLYMERS MAY BE PRODUCED BY SUSPENSION POLYMERIZING POLYVINYLIDENE FLUORIDE IN A WATER MEDIUM AT A TEMPERATURE PREFERABLY BETWEEN 0*C. AND 30*C. IN THE PRESENCE OF A CATALYST WHICH MAY BE A DIALKYL PEROXY DICARBONATE OR A DIALKYL PEROXY CARBONATE.

公开(公告)号：US3644319A

公开(公告)日：1972-02-22

申请号：US3644319D

申请日：1968-04-10

申请人： KUREHA CHEMICAL IND CO LTD

发明人： SEKI SHIGERU ,  SANADA HISAO

IPC分类号： C08F6/10 ,  C08F3/22

CPC分类号： C08F6/10

摘要： A VINYLIDENE FLUORIDE POLYMER OBTAINED BY POLYMERIZATION WITH THE USE OF ORGANIC PEROXIDE AS A CATALYST IS SUBJECTED, PRIOR TO DRYING, TO A HEAT TREATMENT AT A TEMPERATURE FROM 70 TO 120 DEGREES C. AND IN THE CONSTANT PRESENCE OF WATER IN ORDER TO CAUSE DECOMPOSITION AND REMOVAL OF RESIDUAL CATALYST, WHEREBY THE THERMAL STABILITY OF THE POLYMER IS GREATLY IMPROVED. THE HEAT TREATMENT CAN BE CARRIED OUT BY INDIRECT HEATING FROM OUTSIDE, BY BLOWING STEAM INTO A SSPENSION OF THE POLYMER IN WATER, OR BY FLUIDIZED TREATMENT OF THE POLYMER WITH STEAM.

公开(公告)号：US3642755A

公开(公告)日：1972-02-15

申请号：US3642755D

申请日：1968-09-26

申请人： PPG INDUSTRIES INC

发明人： BARTER JAMES A ,  EDDY CLIFFORD O ,  STEVENS HENRY C

IPC分类号： C07C409/16 ,  C08F4/32 ,  C08F3/22

CPC分类号： C08F4/32

摘要： 3-METHYL-3-TERITARYBUTYLPEROXY BUTYRIC ACID, SALTS AND ESTERS THEREOF ITS PREPARATION AND USE AS A POLYMERIZATION INITIATOR FOR ETHYLENICALLY UNSATURATED MONOMERS IS DESCRIBED.

公开(公告)号：US3642754A

公开(公告)日：1972-02-15

申请号：US3642754D

申请日：1968-08-12

申请人： DAIKIN IND LTD

发明人： KOMETANI YUTAKA ,  TATEMOTO MASAYOSHI ,  OKUDA MASAHIRO ,  OKUNO CHUZO ,  SAKATA SHINSUKE ,  OKA MASAHIKO

IPC分类号： C08F14/18 ,  C08F3/20 ,  C08F3/22 ,  C08F3/24

CPC分类号： C08F14/18 ,  C08F2/16

摘要： PROCESS FOR MANUFACTURING FLUORO-OLEFIN POLYMERS BY POLYMERIZATION OF FLUORO-OLEFINS IN THE PRESENCE OF ISOBUTYRYL PEROXIDE AS A CATALYST. THE PLYMERIZATION REACTION OF THE PRESENT INVENTION PROCEEDS WITH A HIGHER POLYMERIZATION VELOCITY AT A LOWER POLYMERIZATION TEMPERATURE TO GIVE A POLYMER OF A HIGH POLYMERIZATION DEGREE THAN THOSE PLOYMERIZATIONS HITHERTO KNOWN. IT IS ALSO CHARACTERIZED IN THE FACT THT THE FLUORO-OLEFIN POLYMERS OBTAINED BY THE PRESENT PROCESS ARE SUPERIOR IN THE PROPERTIES TO THOSE HITHERTO PRODUCED.

公开(公告)号：US3642570A

公开(公告)日：1972-02-15

申请号：US3642570D

申请日：1970-08-05

申请人： CHEVRON RES

发明人： BACSKAI ROBERT

IPC分类号： B32B15/08 ,  C08F8/20 ,  B32B27/30 ,  C08F3/22

CPC分类号： C08F8/20 ,  B32B15/08 ,  Y10T428/31544 ,  Y10T428/31699 ,  C08F14/00

摘要： Laminate of metal and chlorinated polyvinylidene fluoride homopolymer containing about 2 to 20 percent by weight chlorine.

摘要翻译： 含有约2-20％（重量）氯的金属和氯化聚偏氟乙烯均聚物的层合物。

公开(公告)号：US3629218A

公开(公告)日：1971-12-21

申请号：US3629218D

申请日：1969-03-24

申请人： DYNAMIT NOBEL AG

发明人： BIER GERHARD ,  TRAUTVETTER WERNER ,  WEISGERBER GREGOR

IPC分类号： C08F14/20 ,  C08F3/22

CPC分类号： C08F14/20 ,  C08F2/16

摘要： PROCESS FOR THE PREPARATION OF POLYVINYL FLUROIDE WHICH COMPRISES POLYMERIZING VINYL FLUROIDE IN AQUEOUS PHASE AT A TEMPEATURE ABOVE THE CRITCIAL TEMPERATURE OF VINYL FLOURIDE, IN THE PRESENCE OF A WATER SOLUBLE POLYMERIZATION CATALYST AND 0.05 TO 0.5 WT. PERCENT OF TRANS-1,2-DICHLOROETHYLENE BASED ON THE VINYL FLUORIDE.

公开(公告)号：US3624064A

公开(公告)日：1971-11-30

申请号：US3624064D

申请日：1968-05-03

申请人： KUREHA CHEMICAL IND CO LTD

发明人： TOYODA YASUSHI ,  BANNAI NOBUO

IPC分类号： C08F14/18 ,  C08F3/22 ,  C08F15/06

CPC分类号： C08F14/18 ,  C08F2/16

摘要： The temperature in the suspension polymerization of fluoroethylene is maintained below its critical temperature during the initial period of the process and is raised above the critical temperature after polymer particles have been formed. In a variation of this method, a supplementary quantity of the monomer is added to the process, beginning at the time the temperature is raised, in a manner to avoid causing large variation in the polymerization pressure. In a further variation of this method, the temperature is raised to a value from 60* to 150* C. in the final period of the polymerization.