公开(公告)号：DE2363758A1

公开(公告)日：1974-07-11

申请号：DE2363758

申请日：1973-12-21

Applicant: TORAY INDUSTRIES

Inventor： AOYAMA TOSHIKAZU ,  OKASAKA HOTSUMA ,  KODAMA HIROSHI

IPC: C08L67/00 ,  C08K5/06 ,  C08K5/1515 ,  C08L67/02 ,  C08G39/02 ,  C08G51/32 ,  C08G51/58

公开(公告)号：DE2964845D1

公开(公告)日：1983-03-24

申请号：DE2964845

申请日：1979-11-05

Applicant: TORAY INDUSTRIES

Inventor： KOMETANI KIICHI ,  OKASAKA HOTSUMA

IPC: C08L67/00 ,  C08K5/41 ,  C08K5/42 ,  C08L67/02

Abstract: To provide thermoplastic polyester resinous compositions having excellent form stability in melt as well as beneficial mechanical properties such as impact strength in a thermoplastic polyester, (a) at least one epoxy compound and (b) at least one organic sulfonate and/or organic sulfate salt is incorporated.

公开(公告)号：DE3461503D1

公开(公告)日：1987-01-15

申请号：DE3461503

申请日：1984-06-27

Applicant: TORAY INDUSTRIES

Inventor： KAWAKAMI KEN-ICHI ,  YOSHII TOSHIYA ,  SUZUKI MASARU ,  OKASAKA HOTSUMA

IPC: G11B5/73 ,  G11B5/704

Abstract: An oriented polyester film is provided according to the present invention which contains, per 100 parts by weight of a polyester, (A) 0.005-2 parts by weight of fine particles having average size of 0.05-3 mu m, and (B) 0.005-2 parts by weight of at least one compound selected from the group consisting of high aliphatic monocarboxylic acids having 10-33 carbon atoms and esters thereof. Herein also disclosed is a composite polyester film which comprises a resin layer of copolyester or copolyester ether containing an ester-forming alkali metal salt of sulfonic acid compound, the layer being laminated on at least one side of the oriented polyester film as a substrate. The present invention further provides a magnetic recording medium comprising the oriented polyester film or the composite polyester film as a base. The novel films of the present invention have a surface satisfying three properties: flatness, slipperiness and adhesion, which are considered unable to be attained with a conventional polyester film. Furthermore, a magnetic recording medium having good electromagnetic conversion and running properties can be obtained from the films in the invention.

公开(公告)号：CA979569A

公开(公告)日：1975-12-09

申请号：CA129665

申请日：1971-12-08

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO TAKEHIKO ,  KISHIMOTO AKIHIKO ,  NAGAI IKUO ,  SATO HIROSHI ,  INOUE MASAKAZU ,  OKASAKA HOTSUMA

IPC: C08F2/02 ,  C08F279/02 ,  C08F285/00

Abstract: A method is provided for continuously manufacturing high impact strength thermoplastic resins comprised of the sequential steps of (a) bulk-polymerizing a monomer solution, which contains a diene type rubber polymer or a graft polymer obtained by extracting the rubber polymer particle or vinyl monomer grafted polymer particle in latex with vinyl monomers which contain 5-20 percent by weight of water at a temperature of 85 DEG -135 DEG C, while continuously stirring the solution, vaporizing the volatile components, condensing the volatile component and recycling them back to reaction mixture, until the solid content in the reaction mixture reaches 40-75 percent by weight, and thereafter (b) bulk polymerizing the resulting prepolymer solution under the condition that plug-flowing can be attained with a temperature gradient 100 DEG -170 DEG C at the top of the reaction vessel and 170 DEG -270 DEG C at the bottom thereof, while the volatile component of the mixture are evaporated off, condensed and recycled to the reaction mixture, until the solid content is at least 90 percent by weight.