Method for making magnetic recording media by kneading, dilution

Details Method for making magnetic recording media by kneading, dilution Method for making magnetic recording media by kneading, dilution

1991-09-23

1993-08-17

Owens, Terry J.

Coating processes

Magnetic base or coating

Magnetic coating

360134, 366301, B05D 512

Patent

active

052367380

ABSTRACT:
A magnetic layer is overlaid on the front surface of a substrate, and a backing layer is overlaid on the back surface of the substrate. The backing layer is formed by the application of a coating composition, which contains inorganic grains and a binder, to the back surface of the substrate. The coating composition is prepared from the steps of kneading a mixture of the inorganic grains and the binder, in which the weight ratio of the inorganic grains to the binder falls within the range of 100:10 to 100:30, in a two-shaft continuous kneading and mixing machine. A dilution kneading process is then carried out on a mixture of the kneaded mixture, which results from the kneading process, and an organic solvent in a two-shaft continuous kneading and mixing machine. Thereafter a dispersion process is carried out on the diluted mixture, which results from the dilution kneading process.

REFERENCES:
patent: 4561034 (1985-12-01), Akahane et al.
patent: 4612235 (1986-09-01), Ushimaru et al.
patent: 4618535 (1986-10-01), Nishimatsu et al.
patent: 4629646 (1986-12-01), Ide et al.
patent: 4643934 (1987-02-01), Kejimoto et al.
patent: 4812330 (1989-03-01), Ishikuro et al.
patent: 4844977 (1989-07-01), Nakamura et al.
patent: 4880666 (1989-11-01), Ito et al.
patent: 4952064 (1990-08-01), Ono et al.

Affiliated with

Also associated with

Rating

Method for making magnetic recording media by kneading, dilution does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making magnetic recording media by kneading, dilution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making magnetic recording media by kneading, dilution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2242544