Bonded disc and an apparatus for manufacturing the same and the

Details Bonded disc and an apparatus for manufacturing the same and the Bonded disc and an apparatus for manufacturing the same and the

1996-04-15

1998-08-04

Ryan, Patrick

Stock material or miscellaneous articles

Circular sheet or circular blank

428 642, 428 644, 428 652, 428913, 264 133, 2643281, 2643288, 3692751, 369283, B32B 300, B29B 700

Patent

active

057890536

ABSTRACT:
Two disc bases D having different information are molded in a time by a pair of cavities formed when clamping the molds 1 and 2, which are filled with the molten resin by being injected. After taking out the disc bases from the mold by a product taking out apparatus, those are coated with a reflection layer by a sputtering apparatus and subsequently coated with a protection layer by a coating apparatus and finally bonded by a bonding apparatus to obtain a single disc VD. This disc VD can avoid the mechanical troubles such as distortion, bending, twisting or peeling off of the bonded portion in a time lapse after being bonded, because those disc bases VD are molded in a pair of cavities 3, 3 formed in a mold using the material of the same lot, i.e. under the same condition. Representative drawing FIG. 1.

REFERENCES:
patent: 4781879 (1988-11-01), Oishi
patent: 4788015 (1988-11-01), Sakai et al.
patent: 5031172 (1991-07-01), Umeda et al.

Affiliated with

Also associated with

Rating

Bonded disc and an apparatus for manufacturing the same and the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bonded disc and an apparatus for manufacturing the same and the , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bonded disc and an apparatus for manufacturing the same and the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1174938