Sigma Coatings B.v.

Ppg B.v.

Sigmakalon B.v.

Ppg Coatings Europe Bv

Sigmakalon Services B.v.

Michel Gillard

Marcel Vos

Mark Plehiers

Florence Cattiaux

Jos Prinsen

Roy Gerritsen

Gerard Geels

Albert Dirk Broek

Sibel Mill

Gerard De Vries

Jos G M Prinsen

A binder for a self polishing and/or antifouling coating composition comprising an oligomer or polymer composition, formed from at least 50% by weight of monomer units of a vinyl ester of versatic acid.

Binder for a self polishing antifouling coating

A coating composition comprising: i) a carboxylic acid; comprising one or more of rosin or a hydrogenated derivative thereof; ii) at least one metal oxide compound; iii) a dehydrating agent; and iv) one or more binder; characterized in that, in the production of the coating composition, the dehydrating agent iii) is contacted with either of component i) or i) prior to the addition of the other component i) or ii).

Coating composition

A primer coating composition for a metal substrate is described. The primer has a suitable binder and is characterized in that there is at least one semiconductor photocatalyst dispersed throughout the primer coating composition. A process of coating a metal substrate is also described. The invention extends to the use of a semiconductor photocatalyst as a top-coat to primer adhesion promoter or as a primer to top-coat delamination inhibitor in a primer coating composition.

Primer composition

A hydrolysable paint composition comprising organosilyl esters. The organosilyl esters are used in paint formulations which require hydrolysis of one or more of the components of the paint in use. The organosilylesters of the invention may also independently be film forming. The organosilyl ester may be the ester of a carboxylic, sulphonic or phosphoric acid. The binder systems of the invention can be used in paint compositions, such as self-polishing antifouling paints.

Silyl esters, their use in binder systems and paint compositions and a process for production thereof

A method of boosting alkaline hydrolysis or erodability of a hydrolysable paint formulation, the method comprising the step of adding an organosilyl ester to a binder system of a hydrolysable paint formulation. The booster is used in paint formulations which require hydrolysis of one or more of the components of the paint in use. The organosilylesters of the invention may also independently be film forming. The organosilyl ester may be the ester of a carboxylic, sulphonic or phosphoric acid. The binder systems of the invention can be used in paint compositions, such as self-polishing antifouling paints.

Silyl esters, their use in binder systems and paint compositions and a process of production thereof

The present invention provides a process for the preparation of poly(silyl ester)s comprising a structural unit of the formula (I) wherein the process comprises the step of reacting a polyacid of formula (II) with a polyacyloxysilyl derivative of formula (III) while removing the formed acid group(s) of formula RZ(O)OH (IV). RZ(O)OH (V), and RZ(O)OH (VI) from the system.

Process for the preparation of poly(silyl ester)s, and their uses

The present invention relates to polyorganosilylated carboxylate monomers or polymers thereof, comprising a polyorganosilylated carboxylate monomer of the general formula (I) or a polymer thereof,  The invention also relates to the use of these monomers or polymers as coating compositions including antifouling coating compositions.

Process for the preparation of polyorganosilylated carboxylate monomers or polymers thereof

The present invention relates to a process for the preparation of polyorganosilylated carboxylate monomers or polymers thereof, comprising the steps of reacting a cyclosiloxane of formula (R4R5SiO)n with an unsaturated organosilylated carboxylate monomer or a copolymer or a polymer thereof under the presence of a suitable catalyst.

Process for the preparation of organosilylated carboxylate monomers comprising the step of reacting an acyloxysilane with an unsaturated carboxylic acid, the monomers and their use as comonomer unit in the binder of antifouling coating compositions.

Process for the preparation of organosilylated carboxylate monomers, and their use in antifouling coatings

The present invention relates to an organo-functional polysiloxane of formula (1) wherein each Ris independently selected from alkyl or aryl radicals, each Ris independently selected from hydrogen, alkyl or aryl radicals, n is selected so that the molecular weight for the organo-functional polysiloxane is in the range of from 400 to 10,000, Ris a bivalent radical or &#x2014;O&#x2014;W&#x2014;(X)is hydroxy or alkoxy, z is 1, 2 or 3 and X is a reactive functional group for reacting with amine radicals and wherein 0 to 90% of &#x2014;O&#x2014;R&#x2014;(X)is hydroxy or alkoxy 

Organo-functional polysiloxanes

A paint composition comprising silylesters of rosin. Silylesters of rosin are used in self-polishing antifouling paints alone or in combination with other binder components. A process is also defined for the addition of silylesters to paint compositions.

Paint compositions comprising esters of rosin and process of production thereof

Marine paint composition comprising: a first polymer comprising from 20 to 70 wt % of monomer units A of at least one hydrolysable either tin or silicium ester of an olefinically unsaturated carboxylic acid or salt of copper, zinc, calcium of an olefinically unsaturated carboxylic acid, the balance being monomer units C selected from the group consisting of esters of ethylenically unsaturated carboxylic acids with C1-C18 alcohols, styrene, alpha-methyl styrene, vinyl toluenes, and mixtures thereof; a second polymer comprising from 5 to 40 wt % of at least one monomer B selected from the group consisting of the N-vinyl lactam monomers of general formula CH &boxH;CH&mdash;NR&prime;&Prime;&Prime;&mdash;CO&mdash;R&prime;, the N-vinyl amides of general formula CH &boxH;CH&mdash;N&mdash;CO&mdash;R&Prime;, the monomer of general formula CH &boxH;CR&prime;&Prime;&mdash;COO&mdash;R&Prime;&Prime;&mdash;NR&prime;&Prime;&Prime;&mdash;CO&mdash;R&prime;, the monomers of general formula CH &boxH;CR&prime;&Prime;&mdash;COO&mdash;R&Prime;&Prime;&mdash;N&mdash;CO&mdash;R&Prime;, 2-pyrrolidone-1-isoprenyl ketone, and mixtures thereof, wherein R&prime; is a n-alkylidene radical having 2 to 8 carbon atoms, R&Prime; is selected from the group consisting of alkyl, cycloalkyl, aryl, alkylaryl and arylalkyl radicals having a maximum of 18 carbon atoms, R&prime;&Prime; is H or CH , R&Prime;&Prime; is a n-alkylidene radical having from 1 to 8 carbon atoms, R&prime;&Prime;&Prime; is H or R&Prime;, the balance being monomer units C selected from the group consisting of esters of ethylenically unsaturated carboxylic acids with C -C alcohols, styrene, alpha-methyl styrene, vinyl toluenes, and mixtures thereof; at least one antifoulant; the ratio of the first polymer comprising monomer units A to the second polymer comprising monomer units B being of from 95:5 to 10:90.

Growing community of inventors

Louvain-la-Neuve, Belgium

Michel Gillard