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Urethane composition and method for producing urethane composition

A technology of polyurethane and composition, which is applied in the field of polyurethane composition, can solve the problem of low ability to maintain glass, and achieve the effect of excellent adhesion

Active Publication Date: 2018-01-26
SIKA HAMATITE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ability of the rubber weather strip to hold the glass in the event of a collision is low, so it has been proposed to use an adhesive instead of the rubber weather strip

Method used

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  • Urethane composition and method for producing urethane composition
  • Urethane composition and method for producing urethane composition
  • Urethane composition and method for producing urethane composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0181] Examples are shown below to describe the present invention concretely. However, the present invention is not limited thereto.

[0182]

[0183] (dehydration, mixing process)

[0184] In a Loedige mixer (manufactured by Matsubo Corporation), polyol compounds 1 and 2 and a plasticizer were added as liquid components, and then carbon black and calcium carbonate were added as powder components. After stirring at 110°C for 2 hours, a paste mixture was prepared. In addition, the compounding quantity (unit: mass part) of each component is as shown in the following 1st table.

[0185] Next, the inside of the Rodiger mixer charged with the paste mixture was made to be 30 to 60° C. and 1.2 kPa or less, and dried for 30 minutes to obtain a dehydrated paste mixture.

[0186] [Table 1]

[0187]

[0188] Each component shown in the said 1st table|surface is as follows.

[0189] ・Polyol compound 1:2 functional polypropylene glycol (EXCENOL 2020, manufactured by Asahi Glass C...

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Abstract

The purpose of the present invention is to provide a urethane composition having excellent adhesiveness, and a method for producing the urethane composition. The present invention pertains to a single-liquid moisture-curable urethane composition that contains: a dehydrated paste mixture obtained from a mixing / dehydrating step for mixing a liquid component containing a polyol compound and a powdercomponent containing a filler to obtain a paste mixture, and removing at least one portion of residual moisture in the paste mixture; an aromatic polyisocyanate; at least one metal catalyst selected from the group consisting of bismuth-based catalysts and titanium-based catalysts; an aliphatic polyisocyanate; an aminosilane compound; a tin-based catalyst; and an amine-based catalyst. The present invention also pertains to a method for producing the urethane composition.

Description

technical field [0001] The present invention relates to a polyurethane composition and a method for producing the polyurethane composition. Background technique [0002] In the past, the window glass of an automobile was installed on the body via a rubber seal. However, the rubber weather strip has low ability to hold the glass in the event of a collision, and therefore it has been proposed to use an adhesive instead of the rubber weather strip. As a method for producing a composition usable for a vehicle body (coated steel sheet), for example, Patent Document 1 is proposed. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: International Publication No. 2014 / 097907 Contents of the invention [0006] The problem to be solved by the invention [0007] The present inventors produced a composition with reference to Patent Document 1, and as a result, it became clear that such a composition may have low adhesiveness to glass. [0008] The...

Claims

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Application Information

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IPC IPC(8): C08G18/72C08G18/16C08G18/38C08K3/013C08L75/04
CPCC08G18/16C08G18/38C08G18/72C08K3/00C08L75/04
Inventor 荒木公范
Owner SIKA HAMATITE CO LTD
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