Elastomer for use with aqueous inks

Details Elastomer for use with aqueous inks Elastomer for use with aqueous inks

1990-01-30

1992-05-26

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

5253317, 524441, 524484, 524486, 524490, 524491, C08K 304

Patent

active

051169029

ABSTRACT:
In ink-jet pens (10) for use with printers and plotters, an elastomeric, back-pressure bladder (12) is employed to ensure a supply of ink (14) to the printhead (16) under substantially constant pressure. Contamination of ink due to solubilization of components in the bladder by the aqueous-based ink is avoided by employing an elastomer composition essentially of a high cross-link density ethylene propylene diene monomer, carbon black as reinforcement, dicumyl peroxide on Kaolin clay as curative, and fully hydrogenated clay filtered mineral oil as plasticizer. Such elastomers are given by the composition range (in parts per hundred):

REFERENCES:
patent: 4645791 (1987-02-01), Theodore et al.

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