公开(公告)号：DE3434838A1

公开(公告)日：1986-04-03

申请号：DE3434838

申请日：1984-09-22

Applicant: HOECHST AG

Inventor： GAWRISCH WOLFGANG DR ,  SCHAEFER WERNER DR ,  DALLMANN HERMANN DR

IPC: C08L67/00 ,  B29C55/02 ,  B29K67/00 ,  B29L7/00 ,  C08G63/00 ,  C08G63/78 ,  C08J5/18 ,  C08K3/00 ,  C08K3/01 ,  C08K5/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L67/02 ,  C08L101/00 ,  G03C1/795 ,  G11B5/73 ,  G11B7/2535 ,  H01B3/42 ,  C08K5/10 ,  C08K5/42 ,  C08L33/02 ,  C08L23/08 ,  B29C55/00

Abstract: A monoaxially or multiaxially oriented, thermofixed film made from thermoplastic polyester and having improved dimensional stability, increased abrasion resistance and better extensibility, with the features that the film contains added nucleating agent in an amount of from 0.01 to 10.0 % by weight, based on the weight of the polymer forming the film.

公开(公告)号：DE3585353D1

公开(公告)日：1992-03-19

申请号：DE3585353

申请日：1985-09-14

Applicant: HOECHST AG

Inventor： GAWRISCH WOLFGANG DR ,  SCHAEFER WERNER DR ,  DALLMAN HERMANN DR

IPC: C08L67/00 ,  B29C55/02 ,  B29K67/00 ,  B29L7/00 ,  C08G63/00 ,  C08G63/78 ,  C08J5/18 ,  C08K3/00 ,  C08K3/01 ,  C08K5/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L67/02 ,  C08L101/00 ,  G03C1/795 ,  G11B5/73 ,  G11B7/2535 ,  H01B3/42

Abstract: A mono- or multi-axially stretch-oriented, heat-fixed film of thermoplastic polyester contains 0.01-10 wt.% of a nucleating agent, w.r.t. the polymer. The polyester is a homo- or co-polycondensate from terephthalic or isophthalic acid and 2-10C glycols, esp. polyethylene terephthalate and/or polybutylene terephthalate. The nuclearing agent is an alkali(ne earth) salt of a (partly saponified) water wax, e.g. montanic acid, an ionic copolymer of ethylene and an alkali methacrylate, an alkali salt of a phenol sulphonic acid and/or an inorganic nucleating agent, partic. Na montanate and/or a copolymer of ethylene and an alkali (esp. Na) methacrylate. The amt. is 0.2-5 wt.%. The film may contain (in)organic pigments and/or lubricants, antistatics and stabilisers. The film may have several layers, opt. non-nucleated or contg. different nucleating agents and with the sequence and thickness of the layers adapted to the use of the film.

公开(公告)号：DE3678466D1

公开(公告)日：1991-05-08

申请号：DE3678466

申请日：1986-02-25

Applicant: HOECHST AG

Inventor： HENSEL HARTMUT DR ,  DALLMANN HERMANN DR ,  SCHAEFER WERNER DR

IPC: C08G63/00 ,  B29C55/12 ,  B29C71/02 ,  B29K67/00 ,  B29K667/00 ,  B29L7/00 ,  C08G63/18 ,  C08G63/181 ,  C08J5/18 ,  C08L67/00 ,  C08L67/02 ,  G11B5/62

Abstract: A biaxially oriented and heat set film having improved abrasion resistance is described, whose distinguishing characteristics are that it has a density of more than 1.38 g/cm3 and that the following relationship exists between the orientation birefringence ( DELTA n), the reduced specific viscosity (RSV), and the temper peak (Tp) of the film: RSV-¦ DELTA n¦-Tp/250>/=0 with¦ DELTA ¦=¦nMD-nTD¦. In addition, a process for manufacturing the abrasion resistant film is disclosed.

公开(公告)号：DE3610167A1

公开(公告)日：1987-10-01

申请号：DE3610167

申请日：1986-03-26

Applicant: HOECHST AG

Inventor： DALLMANN HERMANN DR ,  HENSEL HARTMUT DR ,  SCHAEFER WERNER DR

IPC: B32B27/36 ,  B29C55/12 ,  B29K67/00 ,  B29L9/00 ,  B32B7/02 ,  C08L67/00 ,  G11B5/73 ,  G11B5/733 ,  G11B5/84 ,  G11B5/62 ,  B29C55/10

Abstract: A coextruded, biaxially draw-oriented, multi-layer polyester film as a base film for magnetic tape is described, whose characteristics are that the total thickness of the multi-layer film is no more than 10 mu m, the surface roughness of the base film on the side intended for the application of an information-carrying coating has an Ra value (DIN 4768) of less than or equal to 0.010 mu m and the surface roughness of the opposite side of the base film which is not intended for application of an information-carrying coating, has an Ra value of greater than 0.010 mu m and that the film has an E-modulus in the machine direction of greater than or equal to 6500 N/mm2.

公开(公告)号：DE3124350A1

公开(公告)日：1983-01-05

申请号：DE3124350

申请日：1981-06-20

Applicant: HOECHST AG

Inventor： DIEDRICH BERND DR ,  FRANKE RAINER DR ,  HARTLAPP JUERGEN DR ,  SCHAEFER WERNER DR ,  STROBEL WOLFGANG DR

IPC: C08F4/00 ,  C08F4/44 ,  C08F4/60 ,  C08F4/64 ,  C08F4/658 ,  C08F10/00

公开(公告)号：DE3751424D1

公开(公告)日：1995-08-31

申请号：DE3751424

申请日：1987-03-17

Applicant: HOECHST AG

Inventor： DALLMANN HERMANN DR ,  HENSEL HARTMUT DR ,  SCHAEFER WERNER DR

IPC: B32B27/36 ,  B29C55/12 ,  B29K67/00 ,  B29L9/00 ,  B32B7/02 ,  C08L67/00 ,  G11B5/73 ,  G11B5/733 ,  G11B5/84 ,  G11B5/704

Abstract: A coextruded, biaxially draw-oriented, multi-layer polyester film as a base film for magnetic tape is described, whose characteristics are that the total thickness of the multi-layer film is no more than 10 mu m, the surface roughness of the base film on the side intended for the application of an information-carrying coating has an Ra value (DIN 4768) of less than or equal to 0.010 mu m and the surface roughness of the opposite side of the base film which is not intended for application of an information-carrying coating, has an Ra value of greater than 0.010 mu m and that the film has an E-modulus in the machine direction of greater than or equal to 6500 N/mm2.

公开(公告)号：DE3124223A1

公开(公告)日：1982-12-30

申请号：DE3124223

申请日：1981-06-20

Applicant: HOECHST AG

Inventor： BERTHOLD JOACHIM DR ,  DIEDRICH BERND DR ,  FRANKE RAINER DR ,  HARTLAPP JUERGEN DR ,  SCHAEFER WERNER DR ,  STROBEL WOLFGANG DR

IPC: C08F4/00 ,  C08F4/10 ,  C08F4/16 ,  C08F4/44 ,  C08F4/60 ,  C08F4/64 ,  C08F4/654 ,  C08F10/00 ,  C08F4/52

公开(公告)号：DE3650512D1

公开(公告)日：1996-05-23

申请号：DE3650512

申请日：1986-01-04

Applicant: HOECHST AG

Inventor： DALLMANN HERMANN DR ,  SEIFRIED WALTER DR ,  SCHAEFER WERNER DR ,  JANOCHA SIEGFRIED DR ,  HENSEL HARTMUT DR

IPC: C08L67/00 ,  B29C55/00 ,  B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  B32B27/36 ,  C08J5/18 ,  C08L33/00 ,  C08L33/02 ,  C08L67/02 ,  C08L77/00 ,  C08L101/00 ,  G11B5/704

Abstract: This invention relates to a biaxially or multi-axially oriented, heat set film, which has on its surface numerous unevenesses, which comprise indentations around a protrusion. The protrusions comprise crosslinked or hardened organic particles having an average particle size of from 0.01 to 5.0 microns and having a narrow particle size distribution. The film surface has a mean surface roughness value Ra of from 0.005 to 0.10 micron.

公开(公告)号：DE3507729A1

公开(公告)日：1986-09-11

申请号：DE3507729

申请日：1985-03-05

Applicant: HOECHST AG

Inventor： HENSEL HARTMUT DR ,  DALLMANN HERMANN DR ,  SCHAEFER WERNER DR

IPC: C08G63/00 ,  B29C55/12 ,  B29C71/02 ,  B29K67/00 ,  B29K667/00 ,  B29L7/00 ,  C08G63/18 ,  C08G63/181 ,  C08J5/18 ,  C08L67/00 ,  C08L67/02 ,  G11B5/62

Abstract: A biaxially oriented and heat set film having improved abrasion resistance is described, whose distinguishing characteristics are that it has a density of more than 1.38 g/cm3 and that the following relationship exists between the orientation birefringence ( DELTA n), the reduced specific viscosity (RSV), and the temper peak (Tp) of the film: RSV-¦ DELTA n¦-Tp/250>/=0 with¦ DELTA ¦=¦nMD-nTD¦. In addition, a process for manufacturing the abrasion resistant film is disclosed.

公开(公告)号：DE3501017A1

公开(公告)日：1986-07-17

申请号：DE3501017

申请日：1985-01-15

Applicant: HOECHST AG

Inventor： DALLMANN HERMANN DR ,  SEIFRIED WALTER DR ,  SCHAEFER WERNER DR ,  JANOCHA SIEGFRIED DR ,  HENSEL HARTMUT DR

IPC: C08L67/00 ,  B29C55/00 ,  B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  B32B27/36 ,  C08J5/18 ,  C08L33/00 ,  C08L33/02 ,  C08L67/02 ,  C08L77/00 ,  C08L101/00 ,  C08J7/04 ,  G11B5/62 ,  G03C1/76

Abstract: This invention relates to a biaxially or multi-axially oriented, heat set film, which has on its surface numerous unevenesses, which comprise indentations around a protrusion. The protrusions comprise crosslinked or hardened organic particles having an average particle size of from 0.01 to 5.0 microns and having a narrow particle size distribution. The film surface has a mean surface roughness value Ra of from 0.005 to 0.10 micron.