Abstract: The present invention refers to the use of compounds comprising, per molecule, at least one polymerizable C—C double bond, at least one adhesion-providing moiety, and one at least bivalent hydrocarbon moiety in between as a spacer as primers in a thiolene-based polymerizable composition for improving the adhesion of the composition on a substrate to be coated therewith, wherein the composition further comprises a radical initiator, monomers with at least two polymerizable C—C double bonds per molecule, and polythiols with at least two SH groups per molecule, wherein the primers comprise 5-norbornen-2-yl groups as polymerizable C—C double bonds, characterized in that compounds are used as primers in the polymerizable composition that a) comprise phosphonic acid groups as adhesion-providing moieties; or b) comprise groups selected from phosphonic acid groups and 3,4-dihydroxyphenyl groups as adhesion-providing moieties, and the polymerizable composition is used as bone adhesive; as well as to corresponding thio

Abstract: A thermoplastic poly(urethane-urea) polyadduct (I) with sterically hindered urea groups used in an electrospinning method for producing vascular prostheses: I, M, C1 and C2 represent bivalent radicals linked via a urethane or urea moiety; I and C2 represent a bivalent, saturated or unsaturated, aliphatic, alicyclic or aromatic radical with 1-20 carbon atoms derived from (I): a diisocyanate; or (C2): from a diol, diamine or amino alcohol; M represents a bivalent radical of an aliphatic polyether, polyester or polycarbonate derived from a macrodiol having Mn?500; C1 represents a bivalent, saturated or unsaturated, aliphatic or alicyclic radical with 1-30 carbon atoms derived from a diamine or amino alcohol with ?1 sterically hindered secondary amino group through removal of one N-linked hydrogen atom of the diamine or one N-linked and the O-linked hydrogen atoms of the amino alcohol.

Abstract: A thermoplastic poly(urethane-urea) polyadduct with sterically hindered urea groups of the following Formula (I): —[I-M-(I—C1)a—(I-M)b-(I—C2)c]n-??(I) I, M, C1 and C2 each representing bivalent residues linked to each other via a urethane or urea moiety. In the residues I, C1 and C2, when more than four carbon atoms are present, optionally at least one of them is substituted by a heteroatom selected from oxygen and nitrogen. Optionally at least one of the residues I, M, C1 and C2 includes one or more ester moieties. a, b and c each independently represent an integer from 0 to 10, and n is a number ?3 representing the number of blocks in the polyadduct. Within each separate block a+c?1, and in all blocks together at least one a?1 and at least one c?1.

Abstract: The present invention relates to a polymerization-curable composition for the preparation of biodegradable, biocompatible, cross-linked polymers on the basis of polyvinyl alcohol comprising: 5 to 100% by weight of (a) vinyl ester monomer(s) of one of the general formulas (I) to (III): wherein X is oxygen, sulfur, nitrogen, or phosphorus; n is 1 to 1000, at least 20% of the n being ?2; the R1 are selected from hydrogen; straight, branched or cyclic, saturated or unsaturated, n-valent hydrocarbon groups having 1 to 30 carbon atoms, which optionally have heteroatoms and are optionally substituted with one or more substituents selected from —OH, —COON, —CN, —CHO, and ?O, and n-valent radicals of biodegradable, biocompatible oligomers and polymers; m is an integer from 1 to 5; the R2 are selected from hydrogen, —OH, ?O, and the options listed for R1; and the R3 are selected from hydrogen, —OH, and the options listed for R1; 0 to 50% by weight of ethylenically unsaturated co-monomers; 0 to 10% by weight of (a)

Abstract: The present invention relates to a polymerization-curable composition for the preparation of biodegradable, biocompatible, cross-linked polymers on the basis of polyvinyl alcohol comprising: 5 to 100% by weight of (a) vinyl ester monomer(s) of one of the general formulas (I) to (III): wherein X is oxygen, sulfur, nitrogen, or phosphorus; n is 1 to 1000, at least 20% of the n being ?2; the R1 are selected from hydrogen; straight, branched or cyclic, saturated or unsaturated, n-valent hydrocarbon groups having 1 to 30 carbon atoms, which optionally have heteroatoms and are optionally substituted with one or more substituents selected from —OH, —COON, —CN, —CHO, and ?O, and n-valent radicals of biodegradable, biocompatible oligomers and polymers; m is an integer from 1 to 5; the R2 are selected from hydrogen, —OH, ?O, and the options listed for R1; and the R3 are selected from hydrogen, —OH, and the options listed for R1; 0 to 50% by weight of ethylenically unsaturated co-monomers; 0 to 10% by weight of (a)