摘要:
The invention relates to new N-alkyl-N-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, their preparation and formulations of these compounds for use as adhesives for the treatment of dental hard substance.
摘要:
The invention relates to a process for the production of mouldings of crosslinked polymers by processing (moulding) of uncrosslinked copolymers of vinyl compounds and polymerisable silane compounds having 1 to 3 hydrolysable groups to give the desired mouldings and crosslinking of the copolymers in the mouldings by aftertreatment of the mouldings with acidic or alkaline aqueous solutions.
摘要:
In the application of an adhesive component to a collagen-containing material such as tooth or a bone, the improvement wherein the adhesive component comprises a compound of the formula ##STR1## in which R.sup.1 denotes hydrogen or methyl,R.sup.2 and R.sup.4 denote divalent aliphatic radicals having one to three carbon atoms,R.sup.3 denotes hydrogen or formyl (--CO--H),X denotes hydrogen or (meth)acryloyl ##STR2## and n represents 0 or 1, with the proviso that if R.sup.3 equals H, n is zero.Those compounds are new in which R.sup.3 denotes formyl and n represents 1.
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:
Monomers with cyclic carbonate groups of the formula I are suitable for the production of photosensitive recording materials, for example for the production of offset printing plates ##STR1## in which A means an (n+m)-valent hydrocarbon residue with 3 to 30 C atoms, which may be OH-substituted and may contain up to 8 ether bridges,R means H or methyl;n means an integer from 1 to 5;m means an integer from 1 to 3, providing that n+m is at least 3.
摘要:
The invention relates to new N-alkyl-N-(meth)acryloyloxyalkylcarboxamides of aromatic carboxylic acids and aromatic carboxylic acid anhydrides, their preparation and formulations of these compounds for use as adhesives for the treatment of dental hard substance.
摘要:
Coating agent for collagen-containing materials, comprising an aldehyde, unsaturated monomers with and without active hydrogen, solubilizers and/or dispersants, activators and conventional additives.
摘要:
Acrylic and methacrylic esters of substituted 1,2-bis(phenoxy)-3,3,4,4,5,5-hexafluoro-1-cyclopentenes of the formula ##STR1## in which, in each case independently of one another, R.sup.1 and R.sup.2 denote C.sub.1 -to C.sub.4 -alkyl, C.sub.1 - to C.sub.4 -halogenoalkyl or hydrogen,R.sup.3 and R.sup.4 denote (n+1)- or (m+1)-valent, straight-chain or branched hydrocarbon radicals having 2 to 15 carbon atoms, which may optionally contain 1 to 3 oxygen bridges,R.sup.5 and R.sup.6 denote hydrogen or methyl,X represents ##STR2## and n and m denote integers from 1 to 5The ester can be polymerized to form dental fillings, coatings and artificial teeth.
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:
Microcapsules containing at least one leuco dye, at least one photopolymerisation initiator and at least one photopolymerisable monomer corresponding to the following formulaA[--NHCO--X--L.sub.1 --(OCO--CR.sub.1 =CH.sub.2).sub.1 ].sub.mwhereinA stands for a 3- to 6-valent organic group having the following meanings:a) a saturated hydrocarbon group having 5 to 25 carbon atoms orb) ##STR1## or c) ##STR2## wherein A.sub.1, A.sub.2, R.sub.3, R.sub.4, o and p have the meanings indicated in the description,X denotes O or NR.sub.2,L.sub.1 denotes a divalent or trivalent aliphatic hydrocarbon group whose carbon chain may be interrupted by 1 to 3 oxygen atoms,R.sub.1 denotes hydrogen or methyl,R.sub.2 denotes hydrogen or C.sub.1 -C.sub.4 -alkyl,l denotes 1 or 2 andm denotes a number from 3 to 6,are distinguished by improved sensitivity.