摘要:
The invention provides a marine antifouling coating composition comprising a tributyltin acrylate coresin in the range of from about 10% to about 25% by weight, a tributyltin polysiloxane coresin in the range of from about 2% to about 20% by weight, at least one filler in the range of from about 10% to about 50% by weight and a solvent in an amount of from about 20% to about 50% by weight. Preferred tributyltin acrylate coresins comprise copolymers of tributyltin methacrylate monomers and methyl methacrylate monomers.
摘要:
L'invention concerne un télomère organométallique utilisable notamment comme agent biocide. Il est représenté par la formule dans laquelle
- n et p représentent des nombres compris entre 1 et 100 tel que le rapport soit inférieur ou égal à 0,75, - R 1 et R 2 identiques ou différent, représentent un atome d'hydrogène ou un groupement méthyle, - R 3 représente un groupement alkyle linéaire ou ramifié de 1 à 12 atomes de carbone, un groupement phényle substitué ou non - R 4 représente un atome d'hydrogène ou l'une des significations indiquées pour R 3 - M et Y provenant d'un agent de transert dans lequel y représente l'hydrogène, le chlore ou le brome et M un groupement organique électroattracteur.
Application à la lutte contre la croissance d'organismes parasites notamment marins.
摘要:
The invention provides a marine antifouling coating composition comprising a tributyltin acrylate coresin in the range of from about 10% to about 25% by weight, a tributyltin polysiloxane coresin in the range of from about 2% to about 20% by weight, at least one filler in the range of from about 10% to about 50% by weight and a solvent in an amount of from about 20% to about 50% by weight. Preferred tributyltin acrylate coresins comprise copolymers of tributyltin methacrylate monomers and methyl methacrylate monomers.
摘要:
An antifouling agent comprising as an antifouling component a substantially linear triorganotin-containing copolymer containing (a) at least one kind of N-coordinated triorganotin-containing recurring units of the formula (la) or (Ib) represented in the specification and (b) comonomer recurring units derived from at least one ethylenic vinyl compound as a comonomer. The antifouling agent is applied to a structure which is needed to be protected from fouling organisms to form a film of the copolymer on the structure.
摘要:
The paint composition comprises a carboxylate group-containing material, a phenyltin compound and a basic non-aromatic organometal oxide or hydroxide, the amount of said oxide and/or hydroxide being at least 75% of the stoichiometric amount relative to the carboxylate groups in the composition and otherwise available for reaction with the phenyltin compound. By the provision of the said oxide and/or hydroxide in the paint composition the undesirable formation of the free benzene by reaction of carboxylate with a phenyltin compound is inhibited.
摘要:
Improved anti-fouling paint compositions are disclosed, comprising a film-forming polymer and at least one sparingly soluble metalliferous pigment, said polymer being prepared by polymerization of 20-45 wt % of monomer units A of at least one triorganotin salt of an olefinically unsaturated carboxylic acid, 5-35 wt % of comonomer units B consisting of vinylpyrrolidone, vinylpiperidine and/or vinylcaprolactam, the total A+B being of 40-70 wt %, and the balance being monomer units C of C₁-C₄ alkyl methacrylate and/or styrene and optionally up to 10 wt % of another olefinically unsaturated comonomer. Also disclosed is a process for applying a top-coat paint on a ship hull, said paint having a composition as disclosed hereabove.