Color-fading primer composition
The technology of a primer and composition, which is applied in the field of primer composition for sealing materials, can solve problems such as insufficient discoloration, unavoidable freezing, or reduction in working efficiency, and achieve the effect of avoiding adverse situations
Active Publication Date: 2012-01-18
SUNSTAR GIKEN KK
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Problems solved by technology
However, the pigments used in this discoloration primer have limitations in the application of solvent-based primers in terms of solubility and discoloration
Furthermore, water-based primers have problems such as freezing at low temperatures or reduction in operating efficiency that cannot be avoided in construction sites.
In addition, depending on the pigment used, discoloration is not enough
Method used
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Embodiment 1～9
[0088] Each component of the solvent, binder resin, adhesive, catalyst, and discoloring pigment was mixed at the ratio described in Table 1 (parts by weight: when the component contains a solvent, it is the compounding amount including the solvent.) , to obtain the primer composition.
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Provided is a primer composition for sealant use that permits visual recognition of the coating state and with which sufficient photofading is achieved after coating. The primer composition for sealant use comprises (A) a binder resin and (B) one type or two or more types of pigment selected from the group composed of curcumin pigment, monascus pigment, chlorophyll, paprika pigment, marigold pigment and caramel pigment.
Description
technical field [0001] This patent application claims the priority of Japanese Patent Application No. 2009-039056 (filing date: February 23, 2009), which is hereby incorporated by reference in its entirety into this specification. [0002] The present invention relates to a primer composition for sealing materials, and more specifically, to a colored primer composition that can be discolored by light. Background technique [0003] In the construction of sealing materials such as buildings, the application of primer is an essential process. However, depending on the properties of the primer and the type of adherend (porous members such as exterior wall panels), it is difficult to visually confirm the application state, which causes missing coating or uneven application. Such poor primer application is related to peeling off of the sealing material. [0004] On the other hand, in order to be able to visually confirm the application state of the primer agent, the primer agent...
Claims
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IPC IPC(8): C09D201/00B05D5/06C09D5/00C09D7/12
CPCC09D167/00C09D133/08C09D5/002C08G18/755C08G18/289C09D7/007C08G18/6216C09D175/04C08K5/0041C09D7/41
Inventor 鸟居智之中山清中山喜光中村武彦村濑雅明
Owner SUNSTAR GIKEN KK