Ink roller and a method of producing the same

Details Ink roller and a method of producing the same Ink roller and a method of producing the same

1981-01-06

1982-11-09

Anderson, Philip E.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

264 26, 264138, 264321, 264DIG66, 4283213, 521 50, 521 52, B29D 2700

Patent

active

043585051

ABSTRACT:
An ink roller and a method of producing the same are disclosed. This ink roller is produced by preheating a flexible polyurethane foam havng a three-dimensional skeletal reticulated structure and a pore size of 20-60 pores/cm at 130.degree.-190.degree. C., subjecting the preheated foam to permanent deformation through compression at a temperature of 130.degree.-220.degree. C. and a compressibility of 1/3-1/15 and cutting the resulting compression body having a hardness of 15.degree.-60.degree. into a given shape in such a manner that the axial direction is coincident with the compression direction of the compression body.

REFERENCES:
patent: 3025200 (1962-03-01), Powers
patent: 3131426 (1964-05-01), Legler
patent: 3171820 (1965-03-01), Volz
patent: 3175025 (1965-03-01), Geen et al.
patent: 3334169 (1967-08-01), Erceg et al.
patent: 3342922 (1967-09-01), Karpovich et al.
patent: 3476933 (1969-11-01), Mendelsohn
patent: 4022856 (1977-05-01), Maxey
patent: 4226911 (1980-10-01), Haren

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