公开(公告)号：JPS57149515A

公开(公告)日：1982-09-16

申请号：JP3113381

申请日：1981-03-06

Applicant: TORAY INDUSTRIES

Inventor： TSUNODA ATSUSHI ,  NAKADA MINORU

IPC: C08G69/00 ,  C08G69/14 ,  D01F9/12 ,  D06M15/59 ,  D06M101/00 ,  D06M101/12 ,  D06M101/40

Abstract: PURPOSE:The titled sizing agent that is composed of modified polyamide obtained by polymerization of alpha-(N,N-dimethylamino)-epsilon-caprolactam, thus showing good adhesion to matrix, handleability in processing and fluffing prevention. CONSTITUTION:alpha-(N,N-dimethylamino)-epsilon-caprolactam alone or a mixture of 30- 100wt%, preferably 40-100% alpha-(N,N-dimethylamino)-epsilon-caprolactam with at least one of cyclic amides of the formula (n is 3-11; R is alkyl) such as epsilon-caprolactam is polymerized by heating in the presence of 1-5wt%, based on the monomer, of a catalyst such as sodium amide and a cocatalyst such as N-acetyl- epsilon-caprolactam in an inert gas atmosphere. The resultant modified polyamide is dissolved in an acidic aqoeuos solution, preferably in 0.5-30% concentration to give the objective sizing agent.

公开(公告)号：JPS5288555A

公开(公告)日：1977-07-25

申请号：JP503376

申请日：1976-01-21

Applicant: TORAY INDUSTRIES

Inventor： NAKADA MINORU ,  SUGII KENJI

IPC: C23F11/04 ,  C23F11/14

公开(公告)号：JPS6049209B2

公开(公告)日：1985-10-31

申请号：JP8117277

申请日：1977-07-07

Applicant: TORAY INDUSTRIES

Inventor： IMAMURA SHINZO ,  NAKADA MINORU ,  SAKAI ATSUSHI

IPC: C08G69/00 ,  C08G69/14 ,  C08G69/36

公开(公告)号：JPS6036510B2

公开(公告)日：1985-08-21

申请号：JP3113381

申请日：1981-03-06

Applicant: TORAY INDUSTRIES

Inventor： TSUNODA ATSUSHI ,  NAKADA MINORU

IPC: C08G69/00 ,  C08G69/14 ,  D01F9/12 ,  D06M15/59 ,  D06M101/00 ,  D06M101/12 ,  D06M101/40

公开(公告)号：JPS58132023A

公开(公告)日：1983-08-06

申请号：JP1324482

申请日：1982-02-01

Applicant: TORAY INDUSTRIES

Inventor： SHIBAHARA TETSUROU ,  EGUCHI HIROAKI ,  NAKADA MINORU

IPC: C08G69/00 ,  C08G69/48

Abstract: PURPOSE:To obtain an insoluble resin which is basic, excellent in water absorptivity and useful as a highly water-absorbing resin, by insolubilizing a soluble polyamide by a reaction with an alpha,alpha'-dihalogenated xylene. CONSTITUTION:A quat. ammonium compound is formed by the Menshutkin reaction of a tert. polyamide (e.g., 1,6-bis-(N,N-dumethylamine)-n-hexane) with an alpha,alpha'-dihalogenated xylene (e.g., alpha,alpha'-dichloro-p-xylene) in a polar solvent such as ethanol. Then, a tert. amine bond-containing soluble polyamine (e.g., poly-alpha-(N,N-dimethylamine)-epsilon-caprolactam) is reacted with said alpha,alpha'-dihalogenated xylene or/and said Menshutkin reaction product, whereby the soluble polyamine is insolubilized.

公开(公告)号：JPS5592734A

公开(公告)日：1980-07-14

申请号：JP85679

申请日：1979-01-05

Applicant: TORAY INDUSTRIES

Inventor： NAKADA MINORU ,  SATOU HARUYO ,  IMAMURA SHINZOU

IPC: C08G69/00 ,  C08G69/14

Abstract: PURPOSE:The title polymer having a high relative viscosity, readily soluble in cold water, methanol, and chloroform, swelling in benzene, slightly soluble in warm water, consisting of repeating units having a specific structure. CONSTITUTION:A polymer obtained by polymerizing alpha-(N,N-dimethylamino)-epsilon- caprolactam in the presence of an anionic polymerization catalyst, e.g. metallic sodium or potassium, and a co-catalyst, e.g. N-acetyl-epsilon-caprolactam, at 130-250 deg.C. The polymer has a relative viscosity >=1.5, preferably 2-5. USE:Adhesives, sizes, coating materials, paper strength improvers, and resins for printing plates.