Tile cement mortars using water retention agents

A cement mortar, brick and tile technology, which is applied in the field of mixture of dry brick and tile cement mortar composition, and can solve problems such as porosity

Inactive Publication Date: 2007-04-11
HERCULES INC
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most tiles are very porous on their unglazed surfaces and are able to remove large amounts of water from the grout, which leads to the difficulties just men...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Examples 1 and 2 show some chemical and physical properties of the polymers of the present invention relative to similar commercially available polymers.

[0044] Determination of degree of substitution

[0045] Modified Zeisel ether cleavage of cellulose ethers with hydroiodic acid at 150 °C. The volatile reaction products formed were determined quantitatively by gas chromatography.

[0046] determination of viscosity

[0047] The viscosities of the aqueous cellulose ether solutions were determined for solutions with concentrations of 1% by weight and 2% by weight. When the viscosity of the cellulose ether solution is determined, the corresponding methylhydroxyalkylcellulose is used on a dry basis, ie the moisture percentage is compensated by a higher amount by weight. Currently available commercially available methyl hydroxyalkyl cellulose based on purified cotton linters or high viscosity wood pulp has a maximum of about 70,000-80,000 mPas (using a Brookfield RVT ...

Embodiment 2

[0059] Determination of degree of substitution

[0060] Modified Zeisel ether cleavage of cellulose ethers with hydroiodic acid at 150 °C. The volatile reaction products formed were determined quantitatively by gas chromatography.

[0061] determination of viscosity

[0062]The viscosity of the aqueous cellulose ether solution is determined for a solution having a concentration of 1% by weight. When determining the viscosity of a cellulose ether solution, the corresponding methylhydroxyalkylcellulose is used on a dry basis, ie the moisture percentage is compensated for by a higher amount by weight.

[0063] To determine the viscosity, a Brookfield LVF rotational viscometer was used. All measurements are made at 25°C and 30 rpm, using propeller No. 4.

[0064] Hydroxyethylcellulose was prepared from purified and raw cotton linters in Hercules' pilot plant reactor. As shown in Table 2, both samples had about the same hydroxyethoxy content. But the viscosity of the formed R...

Embodiment 3

[0067] All tests were performed in a brick cement consisting of 30.00% by weight Portland cement (CEMI 42, 5R), 69.70% by weight quartz sand (0.1-0.3 mm in diameter), and 0.30% by weight cellulose ether .

[0068] For quality assessment, various test methods were carried out. Adjust water requirements to achieve comparable (550,000 ± 50,000 mPas) Helipath viscosities.

[0069] Determination of Mortar Viscosity

[0070] The determination of the mortar viscosity is carried out by means of a rotational viscometer and a paddle system (Hel ipath device).

[0071] Determination of opening hours and correction times

[0072] For the determination of the open time, the mortar was applied to the fiber cement panels with a notched applicator (6 x 6 mm). Every five minutes, 5 x 5 cm clay and stone terracotta tiles were embedded by a load of 2 kg weight for 30 seconds. End open time when less than 50% of the back of the tile is covered with mortar. The first mentioned value represen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Viscosityaaaaaaaaaa
Diameteraaaaaaaaaa
Molecular weightaaaaaaaaaa
Login to view more

Abstract

A mixture composition of a cellulose ether made from raw cotton linters and at least one additive is used in a cement extrusion mortar composition wherein the amount of the cellulose ether in the cement extrusion mortar composition is significantly reduced. When this cement extrusion mortar composition is mixed with a sufficient amount of water and extruded to form an object with comparable or lower crack formation, the plastification and/or extrusion properties of the resulting wet mortar are improved or comparable as compared to when using conventional similar cellulose ethers.

Description

[0001] This application claims the benefit of US Provisional Application No. 60 / 565,643, filed April 27,2004. technical field [0002] The present invention relates to admixtures for use in dry tile cement mortar compositions for installing ceramic tiles on walls and floors. The present invention also relates to dry brick cement mortars using improved water retaining agents made from raw cotton linters. Background technique [0003] Traditional tile cement is usually a simple dry mix of cement and sand. The dry mix is ​​mixed with water to form a mortar. These traditional mortars themselves have poor fluidity or troweling properties. Thus, the application of these mortars is labor intensive due to the rapid evaporation or removal of water from the mortar resulting in poor or poor workability of the cement and short opening and correcting times as well as insufficient hydration, especially During the summer months in hot climates. [0004] The physical properties of a har...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B24/38C04B28/02B63H3/00B64C11/26C04B7/00C04B12/04C04B14/00C04B24/10C04B26/02C04B28/14C04B28/26C04B40/00C04B40/06F01D5/28
CPCC04B2111/56C04B2201/10B63H3/008C04B26/02C04B2111/00129C04B2111/00637C04B2103/0057C04B24/383C04B2103/0099C04B2111/00094C04B28/02C04B2111/34C04B2111/00646C04B40/0039C04B2111/00482C04B40/0608C04B28/14Y02W30/91C04B20/002C04B24/2652C04B24/38C04B24/168C04B2103/44C04B2103/00C04B2103/46C04B14/10C04B14/18C04B14/20C04B14/28C04B14/365C04B18/24C04B20/0048C04B24/10C04B24/223C04B24/226C04B24/2623C04B24/2647C04B24/32C04B2103/0086C04B2103/10C04B2103/20C04B2103/304C04B2103/50C04B2103/30C04B2103/40C04B24/24C04B24/28
Inventor 沃尔夫冈·哈根维尔弗里德·霍恩迪特尔·施维策尔
Owner HERCULES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap