摘要:
Composition comprising as component A) a 1-imidazoly[mothyl-substituted 2-naphthol compound of the general formula (I) where R1, R2 and R3 each independently of one another are H; C1-17alkyl; C3-12cycloalkyl, optionally substituted by c1-4alkyl groups; C4-20cycloalkyl-alkyl, optionally substituted by C1-4alkyl groups; C6-10aryl, optionally substituted by 1-3 C1-4-alkyl groups; C7-15,phonylalkyl, optionally substituted by 1-3 C1-4alkyl groups; C3-17alkenyl; C3-12alkynyl; or aromatic or aliphatic C3-12acyf; R4, R5, R6, R7, R8, and R9 each independently of one another are H; C1-12alkyl; C3-12cycloalkyl, optionally substituted by C1-4alkyl groups; C4-20cycloalkyl-alkyl, optionally substituted by C1-4alkyf groups; C6-10aryl, optionally substituted by 1-3 C1-4alkyl groups; C7-15phenylalkyl, optionally substituted by 1-3 C1-4alkyl groups; C3-17alkenyl; C3-12alkynyl; C1-12alkoxy; or OH; and as component B) a phenol which is liquid at room temperature, the weight ratio of component A) to component B) being from 10:90 to 80:20 as accelerator for curable epoxy resin compositions which are used as a compression moulding compound, sinter powder, encapsulating system, casting resin, or for producing prepregs and laminates having very good interlaminar shear strength values using impregnating methods or injection methods, for producing components, especially components of large surface area.
摘要:
The instant invention relates to boroxine derived compounds, for example tripropargylboroxine, the preparation of said compounds and the use as flame retardant in polymeric resins, in particular in thermosetting polymeric resins.
摘要:
The invention relates to adhesion promoters for plastisols based on polyaminoamides, characterized in that the adhesion promoter comprises not only a polyaminoamide but also at least 10% by weight, and at most 60% by weight, based on the total amount of adhesion promoter, of ethyldiglycol (ethyl Carbitol), and to a process for the production of coatings and adhesive bonds for materials, and also to plastisols in which these adhesion promoters are used concomitantly.
摘要:
The present invention relates to adducts obtainable by reaction of: A) an amine compound containing 2 or more than 2 amino groups: with B) a polyalkylene glycol monoglycidyl ether of general formula (I), in which R independently of one another (for n>1), is an —H or —CH, radical, and n=1 to 50, characterized in that the reaction ratio of components A) and B) is selected in such a way that the resultant adduct contains 2 or more than 2 amine hydrogen groups: to curable compositions based on these adducts with epoxy resins, and to the use of these curable compositions as casting resin, adhesive, matrix resin, tooling resin or as coating composition, in particular for self-flowing coatings.
摘要:
The present invention relates to a liquid, radiation-curable composition containing a cationically activated component, a cationic photoinitiator or a mixture of cationic photoinitiators, at least an effective amount of a compound having at least one terminal and/or pendant unsaturated group and at least one hydroxyl group in its molecule. The composition is free of free radical initiator. The compositions described herein are particularly useful in stereolithography process systems for producing three-dimensional articles.
摘要:
The instant invention relates to 3,3′-bis(3,4-dihydro-3-phenyl-2H-1,3-benzoxazin-6-yl)-1(3H)-isobenzofuranone and analogues based on phenolphthalein, formaldehyde and a primary amine. Such compounds are, when cured to form polymeric networks, difficultly inflammable and resistant to high temperatures. Such compounds may especially be used in the production of printed wiring boards.
摘要:
The invention relates to an optical microelectromechanical structure (MEMS) comprising—an (at least one) optically transmissive layer (UTL)—an (at least one) intermediate layer structure (IL)—a (at least one) device layer (DL) said intermediate layer structure (IL) defining one or more optical paths (OP) between said substantially optically transmissive layer (UTL) and said device layer (DL), said intermediate structure layer (IL) defining the distance (d) between said optically transmissive layer (UTL) and said device layer (DL).
摘要:
Compositions containing (a) a liquid epoxy resin, (b) an aliphatic or cycloaliphatic primary monoamine and/or an aliphatic or cycloaliphatic disecondary diamine, (c) a latent curing agent for the epoxy resin (a) which does not react until temperatures above 70° C. (measured by means of DSC at a heating rate of 10° C./min), (d) a photopolymerizable compound and (e) a photoinitiator, the ratio of the number of equivalents of epoxy groups to that of polymerizable groups being 1:0.01 to 1:0.7, are suitable as impregnating resins.
摘要:
A solvent-free epoxy resin matrix composition comprising: (a) a liquid epoxy resin or a liquid mixture of epoxy resins, (b) a benzylidenamine compound, (c) an aliphatic or cycloaliphatic primary monoamine and/or disecondary diamine; and (d) a catalytically curing tertiary amine. The epoxy resin matrix composition is used as an impregnating resin to form impregnated fiber composite materials.
摘要:
A photocurable composition comprising: (a) a cationically curable component preferably formed from one or more epoxy compound(s), (b) an acrylate component having no or a low amount of hydroxy groups preferably dipentaerythritol hexaacrylate, (c) a polyol component, preferably a polyether polyol, (d) a cationic photoinitiator; and (e) a free radical photoinitiator. The composition may produce when cured three-dimensional articles with high clarity and improved mechanical properties.