Information recording medium

Details Information recording medium Information recording medium

1989-10-18

1991-10-22

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428913, 369284, 369288, 3692751, 346766, 3461351, B32B 302

Patent

active

050594621

ABSTRACT:
In an information recording medium having laminated two disc substrates by an adhesive, each disc substrate comprising a substrate and a recording layer, so that the recording layers are disposed opposite to each other, this invention provides an information recording medium wherein said adhesive is a hot melt adhesive having a softening point of 130.degree. C. or more. Said information recording medium forms no deviation betweeen two laminated disc substrates thereof and decreased deformation such as warpage even when exposed to an atmosphere at high temperature and humidity for a long time.

REFERENCES:
patent: 4503531 (1985-03-01), Kato
patent: 4751124 (1988-06-01), Matsuzawa et al.
patent: 4876557 (1989-10-01), Yabe

Affiliated with

Also associated with

Rating

Information recording medium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Information recording medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information recording medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-107396