摘要:
The present invention relates to new condensation resins formed from urea, formaldehyde and CH-acidic aldehydes, to processes for preparing them, and to use thereof.
摘要:
The present invention relates to a new process for preparing condensation resins, constructed formally from urea, formaldehyde, and CH-acidic aldehydes.
摘要:
The present invention relates to a new process for preparing condensation resins, constructed formally from urea, formaldehyde, and CH-acidic aldehydes.
摘要:
The present invention relates to new condensation resins formed from urea, formaldehyde and CH-acidic aldehydes, to processes for preparing them, and to use thereof.
摘要:
The present invention relates to new condensation resins of urea, formaldehyde, and CH-acidic aldehydes, to methods for preparing them, and to their use.
摘要:
The present invention relates to new condensation resins of urea, formaldehyde, and CH-acidic aldehydes, to methods for preparing them, and to their use.
摘要:
A process for producing moldings, in which a solventborne or aqueous, pigmented coating composition (P) and a free-radically crosslinkable coating composition (K), which after crosslinking to completion produces a transparent coating (KE) are applied to a support sheet, a dried but as yet not completely crosslinked coating (KT) is produced from the coating composition (K), the coated support sheet is shaped and is injection backmolded or foam-backed with a liquid polymeric material, and the coating (KT)—if this has not already taken place—is cured or aftercured; the crosslinkable coating composition (K) comprising a free-radically crosslinkable component (KK) which comprises carbamate and/or biuret and/or allophanate and/or urea and/or amide groups.
摘要:
In a process for improving the adhesive strength of radiation-cured films of acrylate resins which comprise compounds having at least one amine group and at least one unsaturated acrylate group and, in particular, an amino-modified acrylate resin having a molecular weight Mn of at least 300, on substrates, the acrylate resins are admixed with amine-hardenable polyepoxides having an epoxide value of from 1 to 15 mol/kg such as polyglycidyl esters or polyglycidyl ethers. Preferred curable mixtures of amine-modified acrylate resins with polyepoxides have amine numbers of from 1 to 250 mg KOH/g and epoxide values of from 0.1 to 4 mol/kg. The mixtures applied as coating films to metal substrates or plastics substrates, in particular, are radiation-cured with, e.g., UV light and an at least partial amine hardening of the polyepoxide compounds in the mixture is conducted by thermal conditioning at, e.g., from 50 to 120° C.
摘要:
Radiation-curable formulations based on ethylenically unsaturated prepolymers and difunctional esters of ethylenically unsaturated carboxylic acids with diols having a linear alkylene chain of 7 to 14 carbon atoms, a process for coating substrates using these radiation-curable formulations, and their use as automotive topcoats.
摘要:
Radiation-curable preparations comprise at least one polymer which has ethylenically unsaturated double bonds and are used for the coating of mineral moldings.A process for coating mineral moldings, and also mineral moldings which have a coating cured by radiation, are also described.