Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1993-02-03
1993-11-09
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
351160R, 528 26, 528 38, 623 6, G02C 704, C08G 6942
Patent
active
052603520
ABSTRACT:
An ocular lens material consisting essentially of a polymer of an aromatic tetracarboxylic acid dianhydride with a silicon-containing diamine of the formula (I): ##STR1## wherein n is an integer of from 0 to 10.
Menicon Co. Ltd.
Merriam Andrew E. C.
Michl Paul R.
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