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Film-forming material, crosslinkers and coating compositions containing silane, methods for producing a coating composition and a coated substrate

A technology of film-forming substance and alkyl, which is applied in the direction of coating, can solve the problems of consuming a lot of time and energy, and achieve the effect of saving operation time and energy and saving floor space

Inactive Publication Date: 2010-01-20
BASF COATINGS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The process of preparing the coating composition, preparing the surface of the substrate, and applying the coating to the substrate takes a lot of time and energy

Method used

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  • Film-forming material, crosslinkers and coating compositions containing silane, methods for producing a coating composition and a coated substrate
  • Film-forming material, crosslinkers and coating compositions containing silane, methods for producing a coating composition and a coated substrate
  • Film-forming material, crosslinkers and coating compositions containing silane, methods for producing a coating composition and a coated substrate

Examples

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Embodiment 1

Synthesis of Silane-Containing Film-Forming Resins

[0094] have at least one containing -Si(OR) 3 The film-forming resin of the side group of the group is synthesized by a four-step method. The first step is the synthesis of the resin polymer backbone. Diglycidyl ether of bisphenol A, bisphenol A, solvent, phenol and catalyst are mixed and reacted to prepare a hydroxyl polymer, and the monomer unit link of the hydroxyl polymer contains hydroxyl groups on both sides of the ether bond. The second step is amine capping by reacting the hydroxyl polymer with primary or secondary amines, including aminoorganotrialkoxysilanes, to introduce -Si(OR) 3 base. The third step involves a grafting reaction between the capped hydroxyl polymer and the carboxylic anhydride, wherein the carboxylic anhydride has ethylenically unsaturated groups. The carboxylic anhydride reacts with the hydroxyl groups of the polymer to create an ester linkage between the aforementioned anhydride and the polym...

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Abstract

Film-forming materials include resins and / or crosslinkers having a -Si(OR)3 group. Film-forming resins can include epoxy, acrylic, polyurethane, polycarbonate, polysiloxane, polyvinyl, polyether, aminoplast, and polyester resins. A process to produce a film-forming resin includes reacting various polymers to incorporate a pendent group comprising a -Si(OR)3 group. Crosslinkers for polymerizing a film-forming material include at least two functional groups reactive with a film-forming material and at least one pendent group comprising a -Si(OR)3 group. Functional groups reactive with a film-forming material include isocyanate, blocked isocyanate, uretdione, epoxide, hydroxyl, carboxyl, ester, ether, carbamate, aminoalkanol, aminoalkylether, amide, or amine groups. Film-forming resins and / or crosslinkers having a -Si(OR)3 group can be used in methods of producing coating compositions. Coating compositions can be used to coat a substrate, such as a metal substrate, by electrodeposition. Applied coatings containing the film-forming resins can be cured to form crosslinked films on substrates.

Description

Background technique [0001] Coating compositions are used in many applications to coat many substrates, often to protect the substrate or to improve the adhesion of subsequent coatings. Typical coatings include electrodeposition coatings, primers, sealants, basecoats, clearcoats, and primers and topcoats. The coating composition includes a film-forming material comprising one or more resins, which may be polymeric, oligomeric, and / or monomeric materials, which are deposited by various methods including electrodeposition (or electrocoating). ), spray, dip, roll, knife and curtain coating, to be applied to the substrate. "Resin" as used in the present invention refers to one or more polymers, oligomers and / or monomeric substances; polymers include repeating monomer units; oligomers contain a small amount, generally 10 or less A polymer of repeating monomer units. Various types of film-forming substances are known, including epoxy, acrylic, polyurethane, polycarbonate, polysil...

Claims

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Application Information

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IPC IPC(8): C09D201/10
CPCC08G59/1455C08G59/1477C08G59/1433
Inventor S·冈萨雷斯T·S·迪塞姆伯
Owner BASF COATINGS GMBH
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