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Van Geenen Albert Arnold, Bongers Jozef Johannes Maria, Van Der Loos Jozef Lambertus M: Process for the preparation of an n-substituted carbamoyllactam compound.. Stamicarbon, March 27, 1985: EP0135233-A1 (8 worldwide citation)

The invention concerns a simple, reliable and reproducable process for the preparation of an N-substituted carbamoyl lactam compound, for example of the following formula: where: - R is a polyol originating from a polyol having the formula R-(OH)x1, where - x1 is an integer >/= 2 - R min is an alkyl ...


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Kaneyoshi Ashida, Jozef L M van der Loos: N-substituted carbamoyl-lactam. Cushman Darby & Cushman, December 2, 1986: US04626385 (6 worldwide citation)

An N-substituted carbamoyl-lactam compound of the formula ##STR1## wherein R is a di-valent radical derived from polytetramethylene glycol, R' is an at least divalent radical derived from a diisocyanate, Y is a C.sub.3 -C.sub.14 ring-forming alkylene group, and a has a value of at least 1 and is a n ...


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Ashida Kaneyoshi, Van Der Loos Jozef Lambertus M, Frisch Kurt Charles: Process for preparing an n-substituted carbamoyl-lactam compound.. Stamicarbon, October 16, 1985: EP0158393-A1 (4 worldwide citation)

The invention concerns a process for preparing an N-substituted carbamoyl-lactam compound having the formula by reactively admixing a polyhydroxy compound having the formula R(OH)n and a polyisocyanate having the formula OCN-R min -NCO, wherein said n is an integer >/=3, R is the residual of a three ...


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Albert A van Geenen, Joseph J M Bongers, Jozef L M van der Loos: Process for the preparation of an N-substituted carbamoyl-lactam compound. Stamicarbon B V Licensing Subsidiary of DSM, Cushman Darby & Cushman, September 10, 1985: US04540516 (3 worldwide citation)

The invention concerns a simple, reliable and reproducable process for the preparation of an N-substituted carbamoyl lactam compound, for example of the following formula: ##STR1## where: R is a polyol originating from a polyol having the formula R-(OH).sub.xi, where


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Albert A van Geenen, Joseph J M Bongers, Jozef L M van der Loos, Cornelis H Vrinssen: N-Substituted carbamoyl-lactam compound. Stamicarbon B V Licensing Subsidiary of DSM, Cushman Darby & Cushman, September 10, 1985: US04540515 (3 worldwide citation)

The invention concerns an N-substituted carbamoyl-lactam compound characterized by the formula: ##STR1## where in the formula: R is a polyol radical from a polyol having the formula R--(OH).sub.xi, where .sub.xi is an integer.gtoreq.2


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Ashida Kaneyoshi, Van Der Loos Jozef Lambertus M: N-substituted carbamoyl-lactam.. Stamicarbon, October 23, 1985: EP0159070-A1 (2 worldwide citation)

An N-substituted carbamoyl-lactam compound of the formula wherein R is a radical derived from polytetramethyleneglycol R(OH)2 and represents the radical remaining from the polytetramethylene oxide starting material used in preparing polytetramethyleneglycol and has an equivalent weight of 300-2500, ...


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Kaneyoshi Ashida, Jozef L M van der Loos, Kurt C Frisch: Process for preparing an N-substituted carbamoyl-lactam compound. Cushman Darby & Cushman, September 30, 1986: US04614615 (1 worldwide citation)

The invention relates to a process for preparing an N-substituted carbamoyl-lactam compound having the formula: ##STR1## by admixing a polyhydroxy compound having the formula R(OH).sub.n with a polyisocyanate having the formula OCH--R'--NCO, wherein said


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Buckley Gerard Dunstan, Zichy Erno Laszlo: Improved polymerisation process. Ici, October 17, 1962: GB908220-A (1 worldwide citation)

In a process for making polyamides by the alkaline polymerization of at least one monomeric lactam having at least six carbon atoms in the ring, an N-substituted carbamoyl lactam having at least six carbon atoms in the lactam ring is added to the anhydrous monomeric lactam and the mixture held at a ...


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Ashida Kaneyoshi, Van Der Loos Jozef Lm: Derives de substitution en n de carbamoyl-lactame, N-substituted carbamoyl-lactam. L Bruggemann Kommanditgesellschaft, FETHERSTONHAUGH & CO, June 21, 1988: CA1238322

ABSTRACT: An N-substituted carbamoyl-lactam compound of the formula Imagewherein R is a radical derived from polytetramethyleneglycol R(OH)2 and represents the radical remaining from the polytetramethy-lene oxide starting material used in preparing polytetramethylene-glycol and has an equivalent wei ...