Patent · US Expired

Sulfonamido substituted acetal polymers

US5849842A · kind A · utility

4Cited by
40References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 22, 1997
Grant dateDec 15, 1998
Priority date
Expiry dateAug 22, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03F7/033
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Binders useful in photosensitive compositions contain units A, B, C and D, wherein A is present in an amount of 0.5 to 15 wt. % and is of the formula ##STR1## B is present in an amount of 10 to 35 wt. % and is of the formula ##STR2## C is present in an amount of 10 to 50 wt. % and is of the formula ##STR3## wherein R.sup.1 is methyl, ethyl, propyl, and D is present in an amount of 25 to 70 wt. % and is of the formula ##STR4## wherein n is an integer of from 1 to 3 and R.sup.2, R.sup.3 are hydrogen or methyl and R.sup.4 is alkyl, aralkyl or aryl.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.