摘要:
An imaging element is disclosed comprising on a support a dye precursor and a color developer arranged in the same layer or in separate layers characterized in that a specific type of monomers according to one of formulas (I) or (II) and a photoinitiator is present in a layer containing said dye precursor and/or color developer. The imaging element of the invention can used as photosensitive as well as heat-sensitive imaging element for obtaining an image.
摘要:
Adhesive component formulations containing (meth)acrylic acid esters, containing formamide groups, and optionally an initiator, which are used as an adhesive component for the treatment of collagen-containing materials.
摘要:
A dental adhesive comprising a (meth)acryloylaminoalkyl carboxylate of the formula ##STR1## in which R.sup.1 represents hydrogen or methyl;R.sup.2 represents methylene or ethylene; andR.sup.3 represents hydrogen, methyl, or ethyl;and at least one of an initiator, a non-toxic solvent, and a filler. The dental adhesive is useful to effect a strong adhesive bonding of dental materials to collagen-containing materials.
摘要:
For filling and forming teeth, novel (meth)acrylic acid derivatives of triisocyanates of the formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and stand for hydrogen or a lower alkyl radical,R.sup.3, R.sup.4 and R.sup.5 are identical or different and denote hydrogen or methyl,y.sup.1 to y.sup.3 are identical or different and denote divalent straight-chain or branched hydrocarbon radicals of 2 to 15 carbon atoms which may optionally include 1 to 3 oxygen bridges and which may be unsubstituted or substituted by 1 to 4 additional (meth)acryloyloxy radicals,X.sup.1 to X.sup.3 are identical or different and denote --NR.sup.1 -- or --O--, at least one of the radicals X.sup.1 to X.sup.3 denoting --NR.sup.1 --, and the ringsA and B are identical or different and may be aromatic or saturated.
摘要:
The invention relates to diacrylates and dimethacrylates which are derived from cyclohexyldiphenols.Di(meth)acrylates are used widely, for example, as a component of plastic filling materials in dental engineering.
摘要:
The invention relates to formulations for use as an adhesive component for treatment of tooth hard substance, a process for their preparation and their use.
摘要:
The invention relates to a process for the production of crosslinked dental mouldings, in particular for teeth made of plastic, the compositions used therefore and the articles obtained.
摘要:
Transfer images with high resolution are obtained with an image producing element containing a layer of a photopolymerisable composition with a monomer of Formula I by imagewise exposure and transfer of the unhardened parts of the photopolymerisable composition to an acceptor material. ##STR1## In Formula I A denotes a double-bonded or triple-bonded condensed urea group;X denotes O or NR in which R=C.sub.1 -C.sub.12 -alkyl;R.sup.1 denotes a double-bonded hydrocarbon group having 2 to 25 carbon atoms;R.sup.2 denotes a double-bonded to six-bonded linear or branched hydrocarbon group with 2 to 18 carbon atoms optionally interrupted by up to 3 O atoms;R.sup.3 denotes H or methyl;n denotes an integer from 1 to 5 andm stands for 2 or 3.
摘要:
For bonding dental fillings to dentine, carboxamide group-containing (meth)acrylic acid ester of the formula ##STR1## in which R.sup.1 denotes hydrogen or methyl,R.sup.2 denotes alkyl (C.sub.1 -C.sub.4) or alkenyl (C.sub.2 -C.sub.4), optionally substituted by hydroxyl, carboxyl, halogen or amino of the formula ##STR2## in which R.sup.4 and R.sup.5 are identical or different and denote hydrogen or lower alkyl,R.sup.3 denotes hydrogen or has one of the abovementioned meanings of R.sup.2 andX is a divalent aliphatic (C.sub.1 -C.sub.6) or cycloaliphatic radical (C.sub.3 -C.sub.6), which can optionally contain one or more oxygen, sulphur and/or --NR.sup.4 -bridges,whereR.sup.4 has the abovementioned meaning.
摘要:
An aqueous solution for conditioning tooth or bone substance containing phosphono carboxylic acids wherein the solution has a pH in the range 1 to 8.