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Three component composition for the manufacture of polyurethane cementitious hybrid flooring or coating with improved surface gloss

A composition and three-component technology, applied in polyurea/polyurethane coatings, coatings, solid waste management, etc., can solve problems such as difficult to clean, non-glossy, dull surface, etc., and achieve an easy-to-clean effect

Active Publication Date: 2019-01-04
SIKA TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as previously mentioned, they often produce rather dull or matte surfaces that do not have the attractive sheen of epoxy-based compositions and are often difficult to clean

Method used

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  • Three component composition for the manufacture of polyurethane cementitious hybrid flooring or coating with improved surface gloss
  • Three component composition for the manufacture of polyurethane cementitious hybrid flooring or coating with improved surface gloss
  • Three component composition for the manufacture of polyurethane cementitious hybrid flooring or coating with improved surface gloss

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0136] Reference Example

[0137] The reference composition for floor covering applications is used or manufactured as follows.

[0138] Reference composition R-1

[0139] The reference composition R-1 not according to the invention is a three-component polyurethane cement-based hybrid floor covering composition that uses component (A) not according to the invention (lack of polyol P1c).

[0140] The composition of component (A), component (B) and component (C) is shown below.

[0141] The ingredients indicated below are mixed to form component (A), component (B) or component C, respectively. The amount given is in mass ratio.

[0142]

[0143]

[0144]

[0145] Composition mixture

[0146] The components (A), (B), and (C) are mixed in a weight ratio to obtain a mixture as shown below, for example, the weight ratio used is about 16.5, 16.5, and 67. Based on the total weight of the mixture A+B+C, the parts of each ingredient are given in weight %.

[0147] A+B+C(%)

[0148]

[0149] Fir...

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PUM

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Abstract

The present invention relates to a three component composition consisting of a polyol component (A) comprising at least two polyols, one with high, one with low molecular weight and one with an average molecular weight of 300 to 3000 g / mol selected from the group consisting of polyoxyethylenepolyol, polyoxypropylenepolyol and polyoxybutylenepolyol, and water, a polyisocyanate component (B) comprising a methylene diphenyl diisocyanate (MDI) product with an average NCO functionality of at least 2.5, or a methylene diphenyl diisocyanate (MDI) product with an average NCO functionality of at least2 and at least one further polyol with an amount of between 1% and 30% based on the weight of said polyisocyanate component (B), wherein said MDI product and said polyol have reacted at least partially, and a powder component (C) comprising at least one hydraulic binder, preferably cement and / or calcined paper sludge, preferably a calcium compound selected from calcium hydroxide and / or calcium oxide, and optionally one or more aggregates. Polyurethane cementitious hybrid flooring or coating systems having glossy / semi-glossy surfaces, good workability and outstanding mechanical properties can be achieved. Blister formation can be avoided.

Description

Technical field [0001] The present invention relates to a three-component composition for manufacturing a polyurethane cement-based hybrid floor covering (flooring) or coating, a method for manufacturing a floor covering or coating using the three-component composition, and the method obtainable Ground cladding or coating. Background of the invention [0002] Cement-based floor covering compositions are well known and widely used where smooth and chemical and mechanical resistant floor covering solutions are required. In many such applications, epoxy-based floor covering compositions provide suitable solutions, also due to the fact that they generally provide an aesthetically pleasing glossy surface. On the other hand, epoxy-based floor covering compositions have certain disadvantages. For example, undesirable haze effects may occur, especially at lower temperatures. In addition, gloss strength is usually affected by temperature and may decrease in cold environments. In addit...

Claims

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Application Information

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IPC IPC(8): C08K3/22C08K3/36C09D175/08C08G18/32C08G18/66C08G18/76C08G18/30C08G18/36C04B26/16C04B28/02C04B111/60C04B24/28C04B111/00C08G18/48
CPCC04B24/282C04B26/16C04B28/02C04B28/021C08G18/4825C08G18/4829C08G18/6696C08G18/7664C08G18/302C09D175/08C08G18/3206C08G18/36C04B2111/00336C04B2111/60Y02W30/91C04B18/103C04B22/064C04B40/065C08K3/01C08K3/22C08K3/36
Inventor P·希梅诺桑托斯C·卡达兹J·格勒青格H·甘特纳
Owner SIKA TECH AG
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