G - Physics – 03 – C
Patent
G - Physics
03
C
96/153, 96/167,
G03C 5/30 (2006.01) G03F 7/32 (2006.01)
Patent
CA 1156085
Abstract of the Disclosure This invention relates to a developer mixture for washing out light-sensitive copying layers previously exposed in imagewise manner and containing a polymer of an N- vinyl amine, of vinyl alcohol or of a vinyl alcohol derivative, an alcohol being water-soluble in an amount less than 10% by weight, and water as the main constituent, the mixture containing as said polymer a copolymer which is water-soluble or which can be dispersed in water to form a stable dispersion, composed of (a) hydrophilic units of the formula I: Image wherein A is Image ; R is a hydrogen atom or a methyl group; R1 is a hydrogen atom, an alkyl group or an alkoxy alkyl group having 1 to 10 carbon atoms each or an aryl group with 6 to 10 carbon atoms; R2 is an alkyl group or an acyl group having 1 to 5 carbon atoms each, and wherein a homopolymer of the hydrophilic units is water-soluble and of (b) hydrophobic units of vinyl monomers whose homopolymer is water-insoluble and which have an aromatic or a long-chain aliphatic group as the substitu- ent, the proportion of the hydrophobic units being sufficient to ensure that an 0.1% aqueous solution of said copolymer has a sur- face tension of not more than 50 mN/m and that the quantity of said copolymer is at least sufficient to emulsify any quantity of alcohol exceeding the solubility limit. The invention also relates to a process for developing exposed light-sensitive copying layers using said developer mixture.
361610
Buhr Gerhard
Neubauer Rudolf
Sprintschnik Gerhard
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
LandOfFree
Developer mixture including a copolymer with hydrophilic and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Developer mixture including a copolymer with hydrophilic and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developer mixture including a copolymer with hydrophilic and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-687741