Aqueous polyurethane cement composition

A technology of water-based polyurethane and composition, which is applied in the field of water-based polyurethane mortar composition, which can solve the problems of reduced material strength or surface strength, easy damage to the surface of the coating film, etc., and achieves no warping, easy coating construction, and heat resistance excellent effect

Inactive Publication Date: 2006-03-15
AICA KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] On the other hand, if curing shrinkage is suppressed as much as possible, there are problems such as reduction in material strength and surface strength, and easy damage to the surface of the coating film.

Method used

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  • Aqueous polyurethane cement composition

Examples

Experimental program
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Effect test

Embodiment 1

[0032]As the main ingredient, 73 parts of water-dispersible polyester polyol (Sumika Bioel: VPLS2248) and 12 parts of polyester polyol {Kyowa Hakko Co., Ltd.: Kiyoichiwa Boll 2000BA}, 5 parts of toner, 10 parts polysiloxane defoamer. As a curing agent, mix 75 parts of WC-103 and 25 parts of MB-5S. Moreover, 400 parts of aggregates containing the hydraulic mortar of the compounding example 1 of Table 1 were mix|blended, and the water-based polyurethane mortar composition of Example 1 was manufactured.

Embodiment 2

[0034] As the main ingredient, 90 parts of water-dispersible polyester polyol (Sumika Bioel: VPLS2248) and 5 parts of polyester polyol {Kyowa Hakko Co., Ltd. Kiyoichiwa Boll 2000BA}, 5 parts of toner, 10 part polysiloxane defoamer. As a curing agent, mix 100 parts of MR-200. Moreover, 950 parts of aggregates containing the hydraulic mortar of the compounding example 2 of Table 1 were mix|blended, and the water-based polyurethane mortar composition of Example 2 was manufactured.

Embodiment 3

[0036] In the combination of Example 2, only 100 parts of VPLS2248 was used for changing the main ingredient, and 50 parts of DRC3476 and 50 parts of WC-103 were used as curing agent. Moreover, 950 parts of aggregates containing the hydraulic mortar of the compounding example 2 of Table 1 were mix|blended, and the water-based polyurethane mortar composition of Example 3 was manufactured.

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Abstract

The present invention relates to a water-based polyurethane mortar composition, which can prevent warpage and cracks caused by the shrinkage of the coating film without greatly reducing curing shrinkage, maintain heat resistance or physical properties, and do not damage the coating In terms of workability and surface appearance, even a film layer with a coating film thickness of 1 to 4 mm can obtain a water-based polyurethane mortar composition that does not warp or surface cracks despite curing shrinkage. The present inventors found that in the water-based polyurethane mortar composition formed by blending polyester polyol, isocyanate and the aggregate containing hydraulic mortar, when the compressive strength is 30N/mm2 or more than 30N/mm2, and the shrinkage stress is 3.0~ When it is 10.0N/mm2, the material strength or surface strength is improved, and the surface of the coating film is not easily damaged. In addition, there is no warping phenomenon or induction of cracks on the surface.

Description

technical field [0001] The present invention relates to the requirements for easy mixing operation at the construction site, excellent operability in construction operation, performance after manufacture or appearance of finished product without unevenness or spots, water resistance, heat resistance, heat resistance A water-based polyurethane mortar composition used for the construction of water-based, abrasion-resistant, thermal-shock-resistant, etc. floors. Background technique [0002] Water resistance, heat resistance, chemical resistance, hot water resistance, and impact resistance have been required for floors such as kitchens, laboratories, pharmaceutical and chemical factories, and electronic circuit factories until now. The surface construction is a composite floor covered with a reinforced resin, or a resin mortar floor is constructed with a thermosetting resin such as polyurethane resin or epoxy resin and mortar (Japanese Patent Publication No. 56-5704). [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/24C04B24/04
Inventor 池田学内田昌宏山口圣史浅川文男
Owner AICA KOGYO CO LTD
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