Amine-blocked sulfonic acid catalyst
An amine-blocked sulfonic acid and catalyst technology, used in polyester coatings, coatings, powder coatings, etc., can solve the problems of high catalyst sales price and restrictions on the development, production, sales and application of powder coatings.
Inactive Publication Date: 2011-07-27
商新学
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Problems solved by technology
[0004] The amine-blocked sulfonic acid catalyst imported from abroad, because this kind of product is in the monopoly position of foreign companies' technology secrecy and product sales, leads to the extremely high sales price of this kind of catalyst in China, which undoubtedly limits the development, production and sales of this kind of powder coating in China and application
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[0039] The liquid amine-blocked sulfonic acid obtained in the present invention has three intermediate products and three final products. The final powder product is an intermediate product that is adsorbed by fumed silica, stirred and mixed to form three free-flowing powder or tiny granular products. These three products are amines with fumed silica as the carrier. Blocked sulfonic acid catalyst. The specific implementation is as follows:
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Abstract
The invention relates to a catalyst applied to thermosetting powder coatings, which is used for catalyzing the powder coating with polyester resin end-capped by hydroxyl with low hydroxyl value and 1,3,4,6-tetrakis(methoxymethyl) glycoluril as main base materials so that the coating generates the surface effects including wrinkle, reticulate pattern, moire, spot pattern and the like, and the thermosetting powder coating has superior outdoor weatherability and outstanding decorative property. If the amine-blocked sulfonic acid catalyst, as an indispensible ingredient of the wrinkle thermosetting powder coating, is not used, the coating does not have appearances, such as wrinkle, reticulate pattern, moire, spot pattern and other effects.
Description
[0001] [Application technology field] [0002] The invention relates to a type of catalyst applied to thermosetting powder coatings, which is used to catalyze the powder coatings with low hydroxyl value hydroxyl-terminated polyester resin and tetramethoxymethyl glycoluril as the main base material, so that the coating film has wrinkles, Surface effects such as net pattern, moiré pattern, dot pattern, etc., this kind of thermosetting powder coating has excellent outdoor weather resistance and excellent decoration. [Background technique] [0003] In the development of thermosetting powder coatings, a wrinkled powder coating for outdoor use needs to use amine blocked sulfonic acid as a catalyst to form the required surface effect. This type of thermosetting powder coating formulation is the use of low hydroxyl value hydroxyl terminated saturated polyester resin, tetramethoxymethyl glycoluril, blocked or unblocked isocyanate, amine blocked sulfonic acid catalyst, pigment (includin...
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IPC IPC(8): C09D7/12C09D167/00C09D5/03C09D5/28
Inventor 商新学
Owner 商新学
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