Track recording plastic compositions

Details Track recording plastic compositions Track recording plastic compositions

1981-02-18

1983-07-19

Schofer, Joseph L.

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...

526314, 525 5, 2504731, 524296, 524297, C08K 511

Patent

active

043943071

ABSTRACT:
Improved nuclear track recording plastic compositions are provided which exhibit greatly decreased surface roughness when etched to produce visible tracks of energetic nuclear particles which have passed into and/or through said plastic. The improved compositions incorporate a small quantity of a phthalic acid ester into the major plastic component which is derived from the polymerization of monomeric di-ethylene glycol bis allyl carbonate. Di-substituted phthalic acid esters are preferred as the added component, with the further perference that the ester substituent has a chain length of 2 or more carbon atoms. The inclusion of the phthalic acid ester to an extent of from about 1-2% by weight of the plastic compositions is sufficient to drastically reduce the surface roughness ordinarily produced when the track recording plastic is contacted by etchants.

REFERENCES:
patent: 2384115 (1945-09-01), Muskat et al.
patent: 2964501 (1960-12-01), Sarofeen
patent: 3335278 (1967-08-01), Price et al.
patent: 3665194 (1972-05-01), Alter et al.
patent: 4186234 (1980-01-01), Sakashita et al.

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