摘要:
Activation baths containing an organometallic compound based on elements of sub-group 1 or 8 of the periodic table with a "guest/host" interrelationship are outstandingly suitable for electroless metallization of preferably non-metallic substrates. Activators of palladium compounds and cyclic crown ethers are particularly suitable.
摘要:
A mild activation process for the adhesion-activation of polyamide mouldings for electroless metallization comprises treating the substrates, successively or simultaneously, with the solution of a mixture of CaCl.sub.2, LiCl and/or MgCl.sub.2 with AlCl.sub.3, FeCl.sub.3 and/or TiCl.sub.4 in a lower alcohol and with an activator solution based on inorganic complex compounds of the formulaM.sup.n+ [E.sup.m+ Hal.sub.z.sup.- ]in whichM represents two hydrogen or alkali metal atoms or one alkaline earth metal atom,Hal represents a halogen, preferably Cl, andE represents a noble metal atom of the 1st or 8th subgroup of the periodic table, having the valency m and the coordination number z (z-m=n),or with customary colloidal or ionic systems of these noble metals.
摘要:
Activator formulations which contain an aromatic polyurethane as binder are highly suitable for the preparation of non-metallic substrate surfaces for currentless metallization.The metal coatings produced are distinguished by good adhesion.
摘要:
Conductor boards with well adhering conductor tracks are obtained if the substrates, which are clad on both sides with copper foils, have said cladding removed chemically or mechanically, are activated, if necessary sensitized, and are provided with a 0.05-2.0 .mu.m thick layer of nickel, cobalt, manganese, a nickel/iron or nickel/cobalt mixture in an electroless metallizing bath, a 0.5-5.0 .mu.m thick copper layer is applied in a subsequent copper bath and the conductor pattern is then built up by the standard semi-additive methods.
摘要:
A mild and simple process of activating substrate surfaces for the purpose of currentless metallization comprises using organometallic compounds of elements of the groups 1B and 8 of the Periodic System of Elements whose organic moiety has at least one functional group over and above the groups required for binding the metal are used for activation.
摘要:
Metallized, particularly nickel-coated, knitted net fabrics are suitable for protecting the eyes against microwave radiation with very little adverse effect upon the field of vision, particularly when the mesh width of the knitted net fabrics amounts to
摘要:
A simple and mild method of activating substrate surfaces for currentless metallization involves activating by means of organometallic compounds of elements of the 1st and 8th sub-Groups of the Periodic Table of Elements in which the organic moiety consists of oligomeric, prepolymeric or polymeric compounds containing double bonds.
摘要:
Activator formulations which contain copolymers of (meth)acrylonitrile, styrenes, acrylates and/or unsaturated acids as binders are excellently suitable for preparing nonmetallic substrate surfaces for electroless metallization.The metal deposits produced are notable for good bond strength.
摘要:
For the electroless metallization of base carriers for the manufacture of printed circuit boards, those carrier materials are outstandingly suitable on which complex compounds are built up in which the ligands and the ions to be complexed have entered a "host-guest interrelationship". Examples of such activator compounds are complexes of crown ethers, cryptands and the like. The resulting printed circuit boards are distinguished by the high adhesive strengths of the metals deposited on them.
摘要:
A fabric reinforced composite having increased bond strength between impregnating resin and polyaramide reinforcing fabric and method for making the composite including using metal coated polyaramide fabric as the reinforcing material. The metal is deposited by a non-electrical method.