Dispersions containing alkoxylates of alicyclic polycyclic compounds
Inactive Publication Date: 2007-09-13
ETHOX CHEM LLC
View PDF1 Cites 18 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
[0044]A further object of the invention is to provide thermoplastic and/or thermosetting polymer compositions, or polymer compositions transformable at low or high temperature, which are
Problems solved by technology
The introduction of solids into liquid media requires high mechanical forces.
It is further known that these solids tend to flocculate following the dispersion, which nullifies the work earlier done and leads to serious problems.
This medium, however, is not capable in most cases of building up such stable adsorption layers, resulting in a crash of the whole system.
This becomes apparent by the increase in viscosity and pseudoplasticity in liquid systems, losses of gloss and transparency, or opacity in the case of some inorganic pigments and color shifts in lacquers and coatings as well as insufficient color force strength development in pigmented synthetics.
These dispersants, however, only lead to a partial solution, particularly with respect to the miscibility without flocculation of different pigments with each other, such as organic pigments and inorganic pigments.
Consequently, it can be assumed that the adsorption layers built up have insufficient stability against desorption.
A number of dispersants proposed in these publications further have the drawback that the storage stability is too poor, which leads to precipitation, phase separation, crystallization, etc.
This results in products that are inhomogeneous and useless in practice after a relatively short time.
Moreover, comminution of the pigment by contact with the milling media, when it occurs, results in pigment surfaces exhibiting a high number of surface asperities (i.e., surface roughness and irregularities).
Furthermore, contamination of the dispersions from the mechanical parts of the milling equipment can result due to the intimate contact of the pigment with the milling media.
Another disadvantage of mechanical processing of pigments is the large breadth of distribution of particle sizes resulting from such processes.
For dispersions requiring transparency in the final article, these larger particles lead to unwanted light scattering and are detrimental.
The presence of these micrometer sized particles also leads to inherent instability, or tendency to flocculate, in the dispersions.
This often results in smaller average particle diameters but has the disadvantages of requiring a
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
example 1
[0106]The reaction is carried out in a Parr Pressure reactor as follows: To 1 mole equivalent of Cyclecanol, 0.1% KOH is added. The mixture is purged with N2 and then the vessel is evacuated and vacuum stripped for 30 minutes at 105° C. The vessel is brought to 0 psi with N2 and then EO is introduced slowly to initiate the reaction. After initiation, the EO is fed at 140° C. until 70 equiv wts of EO have been added. The product is vacuum stripped and neutralized with acetic acid prior to discharge from the reactor.
[0107]The structure of the resulting compound of example 1 is:
wherein n=70.
example 2
[0108]The following components are reacted using the procedure of Example 1.
COMPONENTAMOUNTTerpineolone mole equivalentKOH0.1%Ethylene oxideuntil 70 equivalents have been added
[0109]The resulting product is a pale liquid.
example 3
[0110]The following components are reacted using the procedure of Example 1.
COMPONENTAMOUNTAdamantanolone mole equivalentKOH0.1%Ethylene oxideuntil 70 equivalents have been added
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
| Property | Measurement | Unit |
|---|---|---|
| Mass | aaaaa | aaaaa |
| Mass | aaaaa | aaaaa |
| Mass | aaaaa | aaaaa |
Login to view more
Abstract
The present invention provides a dispersant for aqueous and non-aqueous systems which can disperse insoluble fine powders in aqueous and non-aqueous liquids in a short period of time and give long-term dispersion stability to the resulting dispersions. The dispersant is a compound of the formula
wherein CY is selected from the group consisting of aliphatic monocyclic compounds having one double bond and aliphatic polycyclic compounds with or without one double bond, or with or without bridge carbons; (n+x+y+z)>1; and R=—H, —SO3M, —CO2M, —PO3M, —OCR′ wherein M=H, or Na, K, Li, Ca, Mg, NH4, NH(R1)2, NH2R1, N(R1)3 where R1 is selected from the group consisting of C1-C6 alkyl and C1-C6 hydroxyalkyl; and R′=C2-C22 alkyl or alkenyl.
Description
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 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
Login to view more Owner ETHOX CHEM LLC
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
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