Eraser and process for its manufacture

Details Eraser and process for its manufacture Eraser and process for its manufacture

1979-08-16

1982-06-15

Ziegler, J.

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...

51298, 51299, 525233, 525235, 525239, 525241, 524302, C08K 510

Patent

active

043350330

ABSTRACT:
An eraser based on polyvinyl chloride having particles of a crosslinked polymeric natural or synthetic rubber embedded in the polyvinyl chloride structure. Such erasers have high strength and good aging resistance. Additionally, conventional softeners in the eraser do not undergo significant migration and consequently, the eraser does not smudge. A process for manufacturing the eraser is also disclosed.

REFERENCES:
patent: 2605247 (1952-07-01), Schule
patent: 3786011 (1974-01-01), Price
Webster's 3rd New International Dictionary, p. 813, col. 1, (1963), G. & C. Merriam Co. Publ., Mass.

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