公开(公告)号：KR870000472B1

公开(公告)日：1987-03-11

申请号：KR810001293

申请日：1981-04-15

Applicant: STAMICARBON

Inventor： GAYMANS REEINOUD J ,  BOUR EDMOND H J P

IPC: C08G69/28

公开(公告)号：KR870000473B1

公开(公告)日：1987-03-11

申请号：KR810001342

申请日：1981-04-17

Applicant: STAMICARBON

Inventor： GAYMANS REINOUD J ,  BOUR EDMOND H J P

IPC: C08G69/28

公开(公告)号：CA1188040A

公开(公告)日：1985-05-28

申请号：CA413215

申请日：1982-10-12

Applicant: STAMICARBON

Inventor： BOUR EDMOND H J P ,  WARNIER JEAN M M

IPC: C08G69/00 ,  C08G69/28 ,  C08G69/36

Abstract: A process for preparing a white nylon-4,6 polyamide in an non aqueous inert polar solvent at atmospheric or only slightly above atmospheric pressure at a temperature of about 150.degree.C to about 300.degree.C. Higher molecular weight polyamides may be obtained following after-condensation.

公开(公告)号：CA1165941A

公开(公告)日：1984-04-17

申请号：CA373818

申请日：1981-03-25

Applicant: STAMICARBON

Inventor： GAYMANS REINOUD J ,  BOUR EDMOND H J P

IPC: C08G69/00 ,  C08G69/28 ,  C08G69/26

Abstract: A process is described for the preparation of high-molecular weight white polyamides, substantially consisting of units of ?NH-(CH2)4-NH-CO(CH2)4-CO?, by the after-condensation of a corresponding low-molecular prepolymer, consisting substantially of a molecular chain of units of ?NH-(CH2)4-NH-CO(CH2)4-CO?, in which process the prepolymer which is employed has been prepared in the presence of an excess of 0.5 to 15 moles-% of 1,4-diaminobutane with respect to the quantity stoichiometrically equivalent to the adipic acid applied. This prepolymer is thereafter subjected to the after-condensation reaction in the solid phase in an atmosphere containing water vapor.

公开(公告)号：CA1165942A

公开(公告)日：1984-04-17

申请号：CA373843

申请日：1981-03-25

Applicant: STAMICARBON

Inventor： GAYMANS REINOUD J ,  BOUR EDMOND H J P

IPC: C08G69/00 ,  C08G69/26 ,  C08G69/28 ,  C08G69/36

Abstract: A process for the preparation of white nylon 4,6 polyamide of high molecular weight from a tetramethylenediamine adipic acid prepolymer, formed under controlled conditions of temperature and water vapor pressure and wherein the plurality of cyclical end-groups in the prepolymer does not exceed 0.20 mg. equivalent per gram of prepolymer.

公开(公告)号：CA1126441A

公开(公告)日：1982-06-22

申请号：CA319683

申请日：1979-01-16

Applicant: STAMICARBON

Inventor： BOUR EDMOND H J P ,  WARNIER JEAN M M ,  BROUWERS JOHANNES A L

IPC: C08G69/00 ,  C08G69/24 ,  D01F6/68

Abstract: POLY-2-PYRROLIDONE AND A PROCESS FOR ITS PREPARATION A new type of poly-2-pyrrolidone suitable for melt spinning and a process for its preparation. The new poly-2-pyrrolidone is characterized in that the polymer in the virgin state has a relative viscosity (1 gram of polymer in 100 ml of 96% sulphuric acid at 20.degree.C) of between 2.2 and 7.0, shows a weight loss of less than 5% by weight when heated from 20.degree.C to the onset temperature of thermal degradation at a rate 4.degree.C per minute, the ratio between the relative viscosities after and before melt spinning ranges between 0.50:1 and 0.95:1, and the relative viscosity after melt spinning is at least 1.90. The new poly-2-pyrrolidone is prepared by polymerization of 2-pyrrolidone in the presence of an anionic catalyst and an accelerator wherein N-(2 caprolactim)-caprolactam is used as the accelerator in an amount of between 0.05 and 5.0 mole percent relative to the monomer, and the polymerization is carried out at a temperature of between about 25 and 70.degree.C until a relative viscosity of at least 2.2 is obtained.