Damping material

Details Damping material Damping material

1983-10-26

1984-12-11

Jacobs, Lewis T.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Mechanical modification or sensing of storage medium

369132, 523428, G11B 344

Patent

active

044882823

ABSTRACT:
A cured multi-component epoxy composition made from a high molecular weight diglycidyl ether of bisphenol A, a second diglycidyl ether, a high molecular weight polyamide-amine curing agent, and an accelerator, is an excellent damping material and can be used in a cutterhead assembly for the manufacture of high-density information discs.

REFERENCES:
patent: 4035590 (1977-07-01), Halter
patent: 4258593 (1981-03-01), Oinonen
patent: 4304694 (1981-12-01), Scola et al.
Lee et al, Handbook of Epoxy Resins; McGraw-Hill Book Co.; 1967; pp. 10-12, 14-2.
"Epon/Eponol Resins", Product Specification Guide, Shell Chemical Company.

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