摘要:
Aromatic copolyamides are described, which are soluble in organic amide solvents. The polymers are composed to at least 95 mol % of repeat structural unitsA: --OC--AR--CO--B: --HN--Ar'--NH--C: --HN--Ar"--NH-- ##STR1## in the combinations A+B+C+D, or A+C+D+E and up to 5 mol % of m-bond-containing structural units F and/or G derived from aromatic dicarboxylic acids (F') and/or from aromatic diamines (G'), the sum total of the mole fractions of structural units A+F and the sum total of the mole fractions of the structural units of B+C+D+E+G being essentially the same, --Ar-- and --Ar'-- are divalent aromatic radicals whose C--N valence bonds are in a para-position or in a similar coaxial or parallel position and which may be substituted by one or two inert radicals, such as lower alkykl or halogen, ##STR2## is a trivalent aromatic radical which after removal of the --SO.sub.2 R group has the same meaning as --Ar-- or --Ar'-- or else is the structural unit ##STR3## wehre X is --O--, --NHCO--, --SO.sub.2 -- or --CO--, --R is lower alkyl and--R' is lower alkyl or alkoxy,and the proportions of the diamine components B, C, D and E are within the following limits:B: 25-47.5 mol %C: 7.5-30 molD: 45-67.5 mol andE: 20-40 mol.
摘要翻译:描述了芳族共聚酰胺,其可溶于有机酰胺溶剂。 聚合物由至少95摩尔%的重复结构单元A组成:-OC-AR-CO-B:-HN-Ar'-NH-C:-HN-Ar“-NH- 组合A + B + C + D或A + C + D + E和高达5摩尔%的由芳族二羧酸(F')衍生的含有M键的结构单元F和/或G的组合 和/或来自芳族二胺(G'),结构单元A + F的摩尔分数和B + C + D + E + G的结构单元的摩尔分数之和的总和基本相同 ,Ar-和-Ar'-是其CN价键处于对位或相似同轴或平行位置并且可被一个或两个惰性基团如低级烷基或卤素取代的二价芳族基团, 是一种三价芳族基团,除去-SO 2 R基后,与-Ar-或-Ar'具有相同的含义,或者是结构单元,其中X是-O-,-NHCO-, - SO 2 - 或-CO-,-R是低级烷基,-R'是低级烷基或烷氧基, 二胺成分B,C,D和E在以下限度内:B:25-47.5摩尔%C:7.5-30摩尔D:45-67.5摩尔,E:20-40摩尔。
摘要:
Aromatic copolyamides, preparation thereof and structures formed therefromThere are described aromatic copolyamides which are soluble in organic solvents for polyamides and which comprise at least 95 mol % of recurring structural units of formulae ##STR1## and up to 5 mol % of meta-bonded structural units E and/or F derived from aromatic dicarboxylic acids (E') and/or from aromatic diamines (F'), the sum total of the mole fractions of structural units A+E and the sum total of the mole fractions of structural units B+C+D+F being essentially of equal magnitude.The copolyamides of the present invention can be processed into fibers having high strengths and high breaking extensions.
摘要翻译:芳族共聚酰胺,其制备方法和由其形成的结构描述了可溶于聚酰胺的有机溶剂中的芳香族共聚酰胺,其包含至少95mol%的式OC a CO A NHAr'NH B的重复结构单元 和至多5摩尔%的由芳族二羧酸(E')和/或芳族二胺(F')衍生的间接键合结构单元E和/或F,结构单元A + E的摩尔分数的总和 并且结构单元B + C + D + F的摩尔分数的总和基本上等于大小。 本发明的共聚酰胺可以加工成具有高强度和高断裂延伸性的纤维。
摘要:
Aromatic copolyamides, soluble in organic polyamide solvents, comprise at least 95 mol % of the recurrent structural units of the formulae ##STR1## and up to 5 mol % of structural units containing m-bonds. Here --Ar--is a divalent, unsubstituted or substituted aromatic radical, the valency bonds of which are in the para-position or in a comparable coaxial or parallel position, and --R--and --R' are different from one another and are lower alkyl radicals or lower alkoxy radicals.
摘要翻译:可溶于有机聚酰胺溶剂的芳香族共聚酰胺包含至少95mol%的式OCArCO A B图像的复发结构单元和至多5mol%含有m键的结构单元 。 这里-Ar-是二价,未取代或取代的芳族基团,其价键位于对位或可比较的同轴或平行位置,并且-R - 和-R'彼此不同并且较低 烷基或低级烷氧基。
摘要:
Aromatic copolyamides, soluble in organic polyamide solvents, comprise at least 95 mol % of the recurrent structural units of the formulae ##STR1## and up to 5 mol % of structural units containing m-bonds. --Ar-- and --Ar'-- are here divalent, unsubstituted or substituted aromatic radicals, the valency bonds of which are in the para-position or in a comparable coaxial or parallel position, and --R and --R' are different from one another and are lower alkyl radicals or lower alkoxy radicals.
摘要翻译:可溶于有机聚酰胺溶剂的芳族共聚酰胺包含至少95mol%的式OCArCO A HNAr'NH B& C> D的复发结构单元和至多5mol%的含有m键的结构单元 。 -Ar-和-Ar'-在这里是二价,未取代或取代的芳族基团,其价键位于对位或相当的同轴或平行位置,并且-R和-R'彼此不同 并且是低级烷基或低级烷氧基。
摘要:
The invention relates to filaments, fibers, pulps, films and sheets from a copolyamide which has at least the recurring structural units of the formulaeA --OC--AR--CO--B --NH--Ar'--NH-- ##STR1## and in which the diamine components B, C and D relative to the total amount of diamine components in mol-% are within a predetermined domain. Such copolyamides can be produced from the corresponding diamines and dicarbonyl dichlorides in aprotic solvents in the presence or absence of metal halides of the first or second group of the periodic table. The spinning solutions obtainable therein can be processed in conventional manner into the claimed shaped structures.
摘要:
There are described copolyamides which are soluble in organic polyamide solvents and contain recurring structural units of the formulae Ia, Ib, Ic and Id or Ia, Ib, Id and Ig or Ia, Ib, Ic, Id and Ig and optionally of the formulae Ie and/or If--OC--Ar.sup.1 --CO-- (Ia),--NH--Ar.sup.2 --NH-- (Ib),--NH--Ar.sup.3 --NH-- (Ic), ##STR1##--OC--R.sup.2 --CO-- (Ie),--NH--R.sup.3 --NH-- (If),--OC--Ar.sup.4 --CO-- (Ig),whereAr.sup.1 and Ar.sup.2 are each independently of the other divalent aromatic radicals whose valence bonds are in the para or a comparable coaxial or parallel position relative to one another,Ar.sup.3 and Ar.sup.4 are each independently of the other divalent radicals whose valence bonds are in the meta or a comparable kinked position relative to one another,R.sup.1 is lower alkyl, lower alkoxy or halogen, andR.sup.2 and R.sup.3 are each independently of the other divalent aliphatic, cycloaliphatic or araliphatic radicals.Through specific choice or the monomer composition it is possible to obtain soluble copolyamides which can be processed into filaments and fibers of high strength.
摘要:
Aromatic copolyamides, soluble in organic polyamide solvents, comprise at least 95 mol % of the recurrent structural units of the formulae ##STR1## and up to 5 mol % of structural units containing m-bonds. Here, --Ar--and --Ar'-- are divalent, unsubstituted or substituted aromatic radicals, the valency bonds of which are in the para-position or in a comparable coaxial or parallel position, and --R is a lower alkyl radical.
摘要翻译:可溶于有机聚酰胺溶剂的芳族共聚酰胺包含至少95mol%的式OCArCO A HNAr'NH B& C> D的复发结构单元和至多5mol%的含有m键的结构单元 。 这里,-Ar-和-Ar'-是二价,未取代或取代的芳族基团,其价键在对位或相当的同轴或平行位置,-R是低级烷基。
摘要:
Organic carbodiimides are prepared by heating isocyanates of formulaR -- (NCO).sub.nwhereinR is an organic radical andn is 1 or 2In the presence of 2-methyl-2,5-dioxo-1-oxa-2-phospholane having the structure ##STR1## as catalyst as temperatures of about 50.degree. to 250.degree. C. The special catalyst not only gives good to excellent yields but, also allows the process to be carried out safely on an industrial scale.
摘要翻译:有机碳二亚胺通过加热式R - (NCO)n的异氰酸酯制备,其中R是有机基团,N IS 1 OR 2在存在2-甲基-2,5-二氧代-1-氧代-2-磷杂环戊烷的情况下 结构作为催化剂,温度约为50℃至250℃。特殊催化剂不仅具有良好的产率,而且还允许工业在工业规模上安全进行。
摘要:
Fibers, filaments and sheets from aromatic polyamides which are dyeable with cationic dyestuffs are prepared by solution polycondensation ofA. aromatic dicarboxylic acid dichlorides optionally containing up to 5 mol % of aliphatic and/or cycloaliphatic dicarboxylic acid dichloridesB. aromatic diamines optionally containing up to 5 mol % of aliphatic and/or cycloaliphatic diamines, andC. 2 to 15 mol %, relative to the total amount of dicarboxylic acid dichlorides, of 4-chlorocarbonyl-sulfobenzoic acid anhydride of the formula ##STR1## and subsequent neutralization and spinning.