摘要:
A reaction product useful for preparing radiation-sensitive materials, in particular materials whose solubility in water or aqueous alkali increases on irradiation, contains urea and urethane groups and also carboxyl groups and is obtained by reaction ofi) an ethylenically monounsaturated or polyunsaturated mono- or polyalcohol withii) a di- or polyisocyanate,iii) at least one amino compound andiv) at least one anhydride of an at least dibasic carboxylic acid,the number of NCO and anhydride groups in ii) and iv) being equal to or less than the number of groups in i) and iii) which are reactive therewith.
摘要:
Detergents contain added graft copolymers which have an antiredeposition action and are obtainable by grafting polyalkylene oxides having a number average molecular weight of from 2000 to 100,000 with vinyl acetate in a weight ratio of from 1:0.2 to 1:10, and up to 15% of whose acetate groups may be hydrolyzed.
摘要:
A photosensitive recording material for the production of printing plates, relief plates or resist images comprises a photocurable relief-forming layer (RL) which is applied onto a dimensionally stable base and consists of(a) a water-soluble or water-dispersible polyvinyl alcohol derivative containing from 1 to 12 mole % of olefinically unsaturated photopolymerizable or photocrosslinkable side groups, in particular of .alpha.,.beta.-olefinically unsaturated carboxylic acids, not more than 30 mole % of hydroxyl groups which are esterified and/or etherified with other non-olefinic radicals, and not less than 65 mole % of free hydroxyl groups and(b) one or more photopolymerization initiators, with or without(c) conventional non-photopolymerizable assistants and/or additives.
摘要:
Radiation-curable contact adhesives containing (A) oligomeric or polymeric reaction products of (a) diisocyanates, (b) polyesterols and/or polyetherols, (c) optionally C.sub.2 -C.sub.50 -diols, (d) C.sub.2 -C.sub.20 -hydroxyalkyl (meth)acrylates and (e) monohydroxyalkylcarboxylic acids in defined weight proportions and (e) monovinyl compounds in an amount of 2-90% by weight, based on A+B, produce contact adhesive layers of particularly high surface tackiness and particularly high cohesion.
摘要:
Compounds of the general formulae ##STR1## where R is versatyl and R' is unsubstituted or alkyl-substituted straight-chain alkylene of 4 or 5 carbon atoms can be prepared by reacting the versatic ester of 1,3-dihydroxy-propyl-2 acrylate and/or of 2,3-dihydroxy-propyl-1 acrylate with equimolar amounts of saturated or monoolefinically unsaturated cyclic dicarboxylic anhydrides having 4 or 5 carbon atoms and an oxygen atom in the ring at from 50.degree. to 150.degree. C. in the presence of customary esterification catalysts and can be used as reactive diluents in radiation-curable contact adhesives.
摘要:
Magnetic recording media consist of a nonmagnetic substrate and at least one magnetizable layer which is firmly applied thereon and is based on a polyurethane binder which may be crosslinked with a polyisocyanate, not less than 50% by weight of the binder consisting of a low molecular weight branched polyurethane having OH-containing urea groups at the chain ends, and the frictional properties of the binder being improved and its friction reduced by the incorporation of perfluoro groups.
摘要:
Novel 2-[(meth)acrylamidomethyl]-1,3-diketones have the general formula (I) ##STR1## where R is hydrogen or methyl,R.sup.1 is hydrogen, methyl or ethyl,R.sup.2 and R.sup.3 are each alkyl of from 1 to 6 carbon atoms or unsubstituted or substituted aryl of from 6 to 20 carbon atoms, R.sup.2 and R.sup.3 being identical to or different from each other.
摘要:
Novel 2-[(meth)acrylamidomethyl]-1,3-diketones have the general formula (I) ##STR1## where R is hydrogen or methyl,R.sup.1 is hydrogen, methyl or ethyl,R.sup.2 and R.sup.3 are each alkyl of from 1 to 6 carbon atoms or unsubstituted or substituted aryl of from 6 to 20 carbon atoms, R.sup.2 and R.sup.3 being identical to or different from each other.