2.
    发明专利
    未知

    公开(公告)号:BR0015986A

    公开(公告)日:2002-08-27

    申请号:BR0015986

    申请日:2000-11-15

    Applicant: BASF AG

    Abstract: A process for continuous production of copolyamides based on a lactam (I), a diamine (II) and a dicarboxylic acid (III) comprisesreacting a mixture (IV) comprising a diamine (II), a dicarboxylic acid (III) and water in a first reaction zone at a pressure in the range from 1.3*10 to 2.5*10 Pa in the entry zone of the reaction zone and at a temperature above the melting point of polymer (V) to a conversion, based on the molar amounts of diamine (II) and dicarboxylic acid (III), of at least 80% to form a polymer (V),reacting a mixture (VI) comprising lactam (I) and water in a second reaction zone at a pressure in the range from 5*10 to 40*10 Pa and at a temperature above the melting point of polymer (VII) to a conversion, based on the molar amount of lactam (I), of at least 80% to form a polymer (VII),then reacting polymer (V) and polymer (VII) with each other in a third reaction zone at a pressure in the range from 1*10 to 1.5*10 Pa in the entry zone of the reaction zone at temperatures above the melting point of polymer (VIII) to form a polymer (VIII), said polymer (VIII) having a 95° C. water extractables content, based on lactam (I), diamine (II) and dicarboxylic acid (III), of not more than 10% by weight, andthen extracting the polymer (VIII) with water to obtain the copolyamide.

    3.
    发明专利
    未知

    公开(公告)号:ES2131413T3

    公开(公告)日:1999-07-16

    申请号:ES96934781

    申请日:1996-10-22

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/04582 Sec. 371 Date Jan. 29, 1998 Sec. 102(e) Date Jan. 29, 1998 PCT Filed Oct. 22, 1996 PCT Pub. No. WO97/16490 PCT Pub. Date May 9, 1997Homo- or copolymers A composed of A1) 40-100% by weight of monomers of the general formula I A2) 0-60% by weight of monomers of the general formula II and A3) 0-10% by weight of further monomers capable of free radical polymerization, the percentages by weight of the monomers A1) to A3) summing to 100% and R1 and R4 being identical or different radicals and each being hydrogen or C1-C4-alkyl, R2, R3, R5, R6 being identical or different radicals and each being hydrogen or C1-C4-alkyl, with the proviso that at least two radicals from the group consisting of R1, R2 and R3 and from the group consisting of R4, R5 and R6 are hydrogen, and R7 is alkyl, cycloalkyl, aryl or aralkyl, are used as branching agents for amino-containing thermoplastic polymers.

    METHOD FOR THE CONTINUOUS PRODUCTION OF COPOLYAMIDES BASED ON A LACTAME (I), A DIAMINE (II) AND A DICARBOXYLIC ACID (III)

    公开(公告)号:CA2392736C

    公开(公告)日:2007-10-09

    申请号:CA2392736

    申请日:2000-11-15

    Applicant: BASF AG

    Abstract: The invention relates to a method for the continuous production of copolyamides which are based on a lactame (I), a diamine (II) and a dicarboxylic acid (III). The inventive method is characterised in that a mixture (IV) containing a diamine (II), a dicarboxylic acid (III) and water is converted to a polymer in a first reaction area at a pressure of 1,3*10 5 to 2,5*10 5 Pa in the entry part of the reaction area, at a temperature above the melting point of the polymer (V) and with a degree of conversion of at least 80 % in relation to the molar quantities of diamine (II) and dicarboxylic acid (III), in that a mixture (VI) containing lactame (I) and water is converted to a polymer (VII) in a second reaction area at a pressure of 5*10 5 to 40*10 5 Pa, at a temperature above the melting point of the polymer (VII) and with a degree of conversion of at least 80 % in relation to the molar quantity of lactame (I), in that polymer (V) and polymer (VII) are then reacted with each other in a third reaction area at a pressure of 1*10 5 to 1,5*10 5 Pa in the entry part of the reaction area, at temperatures above the melting temperature of the polymer (VIII), to produce the polymer (VIII). Polymer (VIII) contains a maximum of 10 wt. % constituents that are extractable with water at a temperature of 95.degree.C, in relation to lactame (I), diamine (II) and dicarboxylic acid (III). The polymer (VIII) is then extracted with water so as to obtain the copolyamide. The invention also relates to copolyamides obtained using this method and to the ir use in the production of fibres, sheet structures and moulded bodies which are based on these copolyamides.

    6.
    发明专利
    未知

    公开(公告)号:ES2125106T3

    公开(公告)日:1999-02-16

    申请号:ES96909142

    申请日:1996-03-28

    Applicant: BASF AG

    Abstract: A polymer based on a dicarboxylic acid and a diamine is prepared by polycondensation in an extruder, by(a) heating a mixture of a dicarboxylic acid having from 4 to 12 carbon atoms and a diamine having from 4 to 12 carbon atoms, which mixture is solid at room temperature and has a residual moisture content of less than 5% by weight, to a temperature in the range from 150 to 400° C. under autogenous pressure in a contrarotating twin-screw extruder to give a product A,(b) feeding the product A to a corotating twin-screw extruder, with the product A being exposed to a temperature in the range from 150 to 400° C. and residual water present and also water from the polycondensation being removed through the degassing openings, to give a product B, with the proviso that the corotating twin-screw extruder has at least two segments having different pressures.

    انتاج مستمر لعديد اميدات تساهمية بالاعتماد على لاكتام (1) ، ثنائي امين (2) وحمض ثنائي كربوكسليك (3)

    公开(公告)号:SA737B1

    公开(公告)日:2006-04-26

    申请号:SA00210561

    申请日:2000-11-22

    Applicant: BASF AG

    Abstract: الملخص؛يتعلقالإختراعالحاليبعمليةلإنتاجمستمر copolyamides تعتمدعلى lactam (١)، diamine (٢) و dicarboxylic acid (٣) نشمل: تفاعلخليط (٤) يشمل diamine (٢)، dicarboxylic acid (٣) وماءفيمنطقةتفاعل reaction zone أولىعندضغطفيحدودمن 1,3*510 إلى 2,5*510بسكالفيمنطقةالدخولمنمنطقةالتفاعل .reaction zone وعنددرجةحرارةفوقنقطةإنصهار polymer (٥) لتحول،علىأساسالكمياتالمولاريةمن diamine (٢) dicarboxylic acidو (٣)،علىالأقل 80% لتشكيل polymer (5)،تفاعلخليط (٦) يشمل lactam (١) وماءفيمنطقةتفاعل reaction zone ثانيةعندضغطفيحدودمن 5*510إلى 40*510 بسكالوعنددرجةحرارةفوقنقطةإنصهار polymer (٧) لتحول،علىأساسالكميةالمولاريةمن lactam (١)،علىالأقل 80% لتشكيل polymer (٧)،تفاعل polymer (5) polymerو (٧) معافيمنطقةتفاعل reactionzone ثالثةعندضغطفيحدودمن 1*510 إلى 1,5*510بسكالفيمنطقةالدخولمنمنطقةالتفاعل reaction zone عنددرجاتحرارةفوقنقطةإنصهار polymer (٨) لتشكيل polymer (٨)، polymer المنكور (٨) لهمحتوىمستخلصاتماءعند95 مئوية،علىأساس lactam (١)، diamine (٢) dicarboxylicacid (٣)،ليسأكثرمن 10% منالوزن،وإستخلاصpolymer (٨) معماءللحصولعلى .copolyamide

    Method for the continuous production of copolyamides based on a lactame (i), a diamine (ii) and a dicarboxylic acid (iii)

    公开(公告)号:AU1700601A

    公开(公告)日:2001-06-12

    申请号:AU1700601

    申请日:2000-11-15

    Applicant: BASF AG

    Abstract: A process for continuous production of copolyamides based on a lactam (I), a diamine (II) and a dicarboxylic acid (III) comprisesreacting a mixture (IV) comprising a diamine (II), a dicarboxylic acid (III) and water in a first reaction zone at a pressure in the range from 1.3*10 to 2.5*10 Pa in the entry zone of the reaction zone and at a temperature above the melting point of polymer (V) to a conversion, based on the molar amounts of diamine (II) and dicarboxylic acid (III), of at least 80% to form a polymer (V),reacting a mixture (VI) comprising lactam (I) and water in a second reaction zone at a pressure in the range from 5*10 to 40*10 Pa and at a temperature above the melting point of polymer (VII) to a conversion, based on the molar amount of lactam (I), of at least 80% to form a polymer (VII),then reacting polymer (V) and polymer (VII) with each other in a third reaction zone at a pressure in the range from 1*10 to 1.5*10 Pa in the entry zone of the reaction zone at temperatures above the melting point of polymer (VIII) to form a polymer (VIII), said polymer (VIII) having a 95° C. water extractables content, based on lactam (I), diamine (II) and dicarboxylic acid (III), of not more than 10% by weight, andthen extracting the polymer (VIII) with water to obtain the copolyamide.

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