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US 5,700,621 AGranted
Polymers and photosensitive mixture prepared therewith
AssigneeAgfa-Gevaert
InventorsMathias Eichhorn, Andreas Elsaesser
Life of this patent
Estimating the term…
Abstract
A polymer comprising repeating units of the formula ##STR1## wherein R.sup.1 , R.sup.2 and R.sup.3 are, independently of one another, hydrogen atoms or alkyl groups, X is CO or SO.sub.2, and Y and Z are, independently of one another, alkyl, alkenyl, cycloalkyl, aryl or heterocyclic radicals, or Y and Z are linked to one another and are constituents of a five-membered or six-membered hetero-cyclic ring.
Claims16
A polymer comprising:
- repeating units of formula I:
- ##STR7## wherein R.sup.1, R.sup.2 and R.sup.3 are, independently of one another, hydrogen atoms or alkyl groups,
- X is CO or SO.sub.2, and
- Y and Z are, independently of one another, alkyl, alkenyl, cycloalkyl, aryl, or heterocyclic radicals, or Y and Z are linked to one another and are constituents of a five-membered or six-membered heterocyclic ring;
- and
- units containing acidic hydrogen atoms which are derived from sulfonic, carboxylic or phosphonic acids, sulfonamides, sulfonimides or carboximides or phenols.
3 more elements
A method for the production of a polymer comprising:
- repeating units of formula I:
- ##STR8## wherein R.sup.1, R.sup.2 and R.sup.3 are, independently of one another, hydrogen atoms or alkyl groups,
- X is CO or SO.sub.2, and
- Y and Z are, independently of one another, alkyl, alkenyl, cycloalkyl, aryl, or heterocyclic radicals, or Y and Z are linked to one another and are constituents of a five-membered or six-membered heterocyclic ring;
- and
- units containing acidic hydrogen atoms which are derived from sulfonic, carboxylic or phosphonic acids, sulfonamides, sulfonimides or carboximides or phenols,
- said method comprising reacting an unsaturated nitrile of formula:
- ##STR9## with an N-hydroxymethylimide of formula:
- ##STR10## in the presence of an acid to form a monomer of formula II ##STR11## and copolymerizing the monomer of the formula II and said units containing acidic hydrogen atoms in the presence of a free-radical-forming catalyst to form the polymer containing units of the formula I, and wherein
- R.sup.1, R.sup.2 and R.sup.3 are, independently of one another, hydrogen atoms or alkyl groups,
- X is CO or SO.sub.2, and
- Y and Z are, independently of one another, alkyl, alkenyl, cycloalkyl, aryl, or heterocyclic radicals, or Y and Z are linked to one another and are constituents of a five-membered or six-membered heterocyclic ring.
9 more elements
A method for producing a photosensitive mixture comprising mixing
- (a) a water-insoluble polymeric binder which is soluble or swellable in aqueous-alkaline solutions and
- (b) a 1,2 quinone diazide, wherein the water-insoluble binder a) comprises a polymer comprising:
- repeating units of formula I:
- ##STR12## wherein R.sup.1, R.sup.2 and R.sup.3 are independently of one another, hydrogen atoms or alkyl groups,
- X is CO or SO.sub.2, and
- Y and Z are independently of one another, alkyl, alkenyl, cycloalkyl, aryl, or heterocyclic radicals, or Y and Z are linked to one another and are constituents of a five-membered or six-membered heterocyclic ring;
- and units containing acidic hydrogen atoms which are derived from sulfonic, carboxylic or phosphonic acids, sulfonamides, sulfonimides or carboximides or phenols.
4 more elements
Dependencies are inferred from the claim text.