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Ambient cured coatings and coated rubber products therefrom

A technology for rubber products and coatings, applied in the field of low-viscosity organic solutions, can solve problems related to pot life and achieve excellent adhesion

Inactive Publication Date: 2005-09-21
LORD CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the catalysts used in such sealants create problems related to pot life

Method used

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  • Ambient cured coatings and coated rubber products therefrom
  • Ambient cured coatings and coated rubber products therefrom
  • Ambient cured coatings and coated rubber products therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0187] Component Parts by weight

[0188] 1A 1B 1C 1D 1E

[0189] MIBK 190.0 190.0 190.0 190.0 190.0

[0190] Therban® KA-8889 (X-HNBR) 10.0 10.0 10.0 10.0 10.0

[0191] Aminopropyltriethoxysilane 7.5 10.0 12.5 - -

[0192] Aminoethylaminopropyltrimethoxysilane - - - 2.5 7.5

[0193] Tensile strength (psi) 3150 3765 3205 605 1975

[0194] Elongation (%) 365 390 355 280 400

[0195] From the above results it can be seen that a minimum of 25 parts of effective curing component is required per 100 parts of film-forming polymer to provide a coating with adequate strength while maintaining sufficient elongation to provide the elongation required for sufficient flex capability. long nature.

[0196] Component Parts by weight

[0197] MIBK 145.0 145.0 145.0 145.0 145.0

[0198] Vamact® G (ethylene-acrylic acid) 15.0 15.0 15.0 15.0 15.0

[0199] Aminopropyltriethoxysilane 5.0 7.5 10.0 12.5 15.0

[0200] Tensile strength (psi) 1800 1915 3770 274...

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Abstract

The present invention provides articles coated with an ambient temperature curing coating, wherein the coating is a rubbery, high elongation, weatherable coating composition that is a two-component mixture, one component comprising a solution of a functional film-forming polymer , another component provides the curing component. For single-part solutions of premixes, the stability is several months at most. The curable film former and curing components are mixed together at a total solids content of 4-25%, and the viscosity is less than 20,000cps (Brookfield viscosity), so that the coating can be sprayed, brushed or dipped to form 0.001-0.020 dense Thin coating of the ear. Coated rubber articles comprising metallic conductive particles exhibit heat emissive properties that can be used to extend the useful life of the article.

Description

field of invention [0001] The present invention relates to low viscosity organic solutions as ambient temperature curable coatings that are brushed, dipped or sprayed onto substrates such as rubbery elastomers, rigid metals, or flexible-rigid thermoplastic substrates to provide reinforcement to the substrate. Enhanced appearance, solvent and fuel resistance, and ozone resistance. This coating is flexible and can be applied at the factory to original equipment or as an aftermarket coating or restoration finish. Background of the invention [0002] Rapid reaction sealants which are moisture curable and which comprise a plasticized rubbery polymer and a reactive silane and a catalyst are known. See, eg, US Patents 6,335,412, 5,051,463, 6,025,445, and 6,410,640. This rheology and plasticizer make these compositions unsuitable as brush, dip and sprayable coatings and plasticizers. For 1-5 mil film coatings, plasticizers are thought to affect adhesion and abrasion. Furthermore...

Claims

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Application Information

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IPC IPC(8): C08J7/043C08J7/046C08K3/08C09D7/12C09D109/00C09D109/02C09D115/00C09D123/00C09D123/04C09D123/22C09D133/02C09D133/06C09D135/02C09D153/00C09D157/10C09D183/04C09D201/02C09D201/10
CPCC08K5/544C08J7/047C09D115/005C08J2321/00C08K3/08C08J7/0427C08J7/043C08J7/046C08L15/005C08L21/00
Inventor 詹姆斯·R·哈拉达伊
Owner LORD CORP