C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
260/251, 402/297
C08K 5/34 (2006.01) C08F 8/32 (2006.01) C08K 5/3445 (2006.01) C08K 5/3462 (2006.01) C08K 5/35 (2006.01) C08L 35/00 (2006.01) C09D 133/06 (2006.01) C09D 135/00 (2006.01) C09D 201/06 (2006.01)
Patent
CA 1336599
Moisture hardening binders for lacquer and coating compositions are prepared by mixing with exclusion of moisture, and with or without reacting: A) 30 to 99 parts by weight of at least one compound containing at least two intramolecular carboxylic acid anhydride moieties with B) 1 to 70 parts by weight of organic compounds containing blocked amino groups from which free primary aminos, secondary aminos or both are formed under the influence of moisture characterized in that compounds B) are organic compounds containing hexahydro- pyrimidine or tetrahydroimidazole moieties, with or without other blocked amino moieties in addition to the hexahydro- pyrimidine or tetrahydroimidazole moieties, the quantitative proportions of the individual components A) and B) being so chosen, taking into account any spontaneous addition reaction which may take place between components A) and B) in the absence of moisture, such that the resulting composition contains from 0.25 to 50 anhydride moieties for each hexahydro- pyrimidine or tetrahydroimidazole moiety.
576537
Blum Harald
Pedain Josef
Wamprecht Christian
Aktiengesellschaft Bayer
Blum Harald
Fetherstonhaugh & Co.
Pedain Josef
Wamprecht Christian
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