Abstract: The invention relates to a process for the preparation of esters of (meth)acrylic acid by (trans)esterifying (meth)acrylic acid or its ester derivatives with monohydric or polyhydric alcohols in the presence of an acidic (trans)esterification catalyst, wherein said process after the formation of the esters of (meth)acrylic acid further comprises reacting remaining acid groups with one or more component(s), wherein at least one component forms with at least said catalyst an ester compound not having a ?-hydroxy group or forms an amid compound. The component that reacts with the acidic (trans)esterification catalyst preferably is selected from the group consisting of an oxetane component or derivative, an ortho-ester component, an alcohol component or any mixture thereof.

Abstract: The invention relates to a radiation-curable coating, ink or matrix composition comprising: (A) a polyester (meth)acrylate oligomer comprising more than about 1 mole of diacid, (B) optionally, a reactive diluent, and (C) optionally, a photoinitiator, wherein the composition when cured and aged at 85° C. and 85 % Relative Humidity for 10 days is hydrolytically stable to such an extent that the coating, ink or matrix maintains mechanical integrity. The invention further relates to said compositions for use as a primary coating composition, which, after cure, has a modulus of less than about 5 MPa, for use as a secondary coating or ink composition and for use as a matrix material, which, after cure, has a modulus of at least about 5 MPa. The invention also relates to a coated and optionally inked optical fiber and to an optical fiber ribbon comprising a coating, ink or matrix material as described above.

Abstract: The invention relates to a radiation-curable coating, ink or matrix composition comprising:

Abstract: The invention relates to a process for the preparation of esters of (meth)acrylic acid by (trans)esterifying (meth)acrylic acid or its ester derivatives with monohydric or polyhydric alcohols in the presence of an acidic (trans)esterification catalyst, wherein said process after the formation of the esters of (meth)acrylic acid further comprises reacting remaining acid groups with one or more component(s), wherein at least one component forms with at least said catalyst an ester compound not having a &bgr;-hydroxy group or forms an amid compound. The component that reacts with the acidic (trans)esterification catalyst preferably is selected from the group consisting of an oxetane component or derivative, an ortho-ester component, an alcohol component or any mixture thereof.