摘要:
The invention relates to silylated polyisocyanates containing allophanate groups, a method for preparing same, the use thereof, and coating compounds containing same.
摘要:
The present invention relates to a method for coating plastics substrates with an aqueous coating composition (A) comprising at least one organic polymer as binder, said coating composition being applied to at least one surface (O) of the plastics substrate and being subsequently cured, wherein (i) the application of the coating composition (A) is preceded by the application of a carbene-forming compound (C) of formula (I) where R 1 = −(CX 2 )nX, where X = F or Cl, and n = 0 or 1, R 2 = (a) where R 3 , R 4 independently of one another = −H, −(CH 2 ) m Y, where Y = OH, CO 2 H, NH 2 , or Br, and m = 0 to 4, with the exception of R 3 = R 4 = −H, directly to the surface (O) and its activation to carbene formation, and/or (ii) the coating composition (A) comprises the carbene-forming compound (C), which is activated to carbene formation following application of the coating composition (A). The invention also relates to coatings produced by means of the method, and to coated plastics substrates.
摘要:
The invention relates to polymerizable alkylidene-1,3-dioxolan-2-ones, to the production thereof, and to the use thereof to produce polymers. The invention further relates to the homopolymers and compolymers that can be obtained by the homopolymerization or copolymerization of alkylidene-1,3-dioxolan-2-one monomers of formula (I) and to the use thereof as a component in two-component binder compositions. In formula (I), the residues or groups R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , A, X, Z, and Y have one or more or all of the following meanings, independently of each other: R 1 and R 2 stand independently of each other for hydrogen, C 1 -C 6 alkyl, C 1 -C 4 -alkoxy-C 1 -C 4 -alkyl, C 5 -C 6 cycloalkyl, phenyl, or phenyl-C 1 -C 4 -alkyl; R 3 stands for hydrogen, C 1 -C 6 alkyl, C 1 -C 4 -alkoxy-C 1 -C 4 -alkyl, C 5 -C 6 cycloalkyl, phenyl, or phenyl-C 1 -C 4 -alkyl; R 4 stands for hydrogen, C 1 -C 4 alkyl, CH 2 COOR 8 , phenyl, or phenyl-C 1 -C 4 -alkyl; R 5 and R 6 stand independently of each other for hydrogen or C 1 -C 4 alkyl or one of the residues R 5 or R 6 can also stand for COOR 8 or CH 2 COOR 8 ; A stands for a chemical bond or C 1 -C 4 alkanediyl; X stands for O or NR 7 ; Z stands for a chemical bond, PO 2 , SO 2 , or C=O; Y stands for a chemical bond, CH 2 or CHCH 3 ; R 7 , if present, stands for C 1 -C 6 alkyl; R 8 , if present, stands for hydrogen or C 1 -C 6 alkyl.
摘要:
The present invention relates to amino resins bearing (meth)acrylic groups, to processes for preparing them, to their use, and to coating compositions comprising them.