GB2151219A - Organoclay materials - Google Patents

Organoclay materials Download PDF

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Publication number
GB2151219A
GB2151219A GB08329604A GB8329604A GB2151219A GB 2151219 A GB2151219 A GB 2151219A GB 08329604 A GB08329604 A GB 08329604A GB 8329604 A GB8329604 A GB 8329604A GB 2151219 A GB2151219 A GB 2151219A
Authority
GB
United Kingdom
Prior art keywords
organoclay
further substance
urea
range
materials
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08329604A
Other versions
GB8329604D0 (en
Inventor
John P Tatum
Robert Christopher Wright
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nouryon Chemicals Ltd
Original Assignee
Perchem Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Perchem Ltd filed Critical Perchem Ltd
Priority to GB08329604A priority Critical patent/GB2151219A/en
Publication of GB8329604D0 publication Critical patent/GB8329604D0/en
Priority to PCT/GB1984/000380 priority patent/WO1985001946A1/en
Priority to EP84307632A priority patent/EP0141668B1/en
Priority to DE8484307632T priority patent/DE3477183D1/en
Priority to NO852704A priority patent/NO167398C/en
Priority to DK306285A priority patent/DK158147C/en
Publication of GB2151219A publication Critical patent/GB2151219A/en
Priority to US07/081,566 priority patent/US4752342A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
    • C01B33/28—Base exchange silicates, e.g. zeolites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/04—Thixotropic paints

Abstract

Organoclay materials formed by reacting Smectite clays with a quaternary ammonium compounds are improved by including in the reaction mixture a further substance, such as urea or sulphamic acid, having an unsubstituted or substituted amino oramido group. Useful as paint additives and in coating compositions.

Description

SPECIFICATION Organoclay materials This invention relates to organoclay materials, that is to say materials formed by the reaction of a smectite clay, such as Bentonite, with a quarternary ammonium compound. These materials are used for example as additives in the manufacture of paints and other coating compositions for the purpose of providing or modifying thixotropic properties. However, known organoclay materials previously used for this purpose suffer from a number of disadvantages. In particular, some are rather difficult to disperse, and some are more suitable for use with aliphatic systems whereas others are more suitable for use with aromatic systems.
In accordance with the invention we provide an organoclay material comprising the reaction product of a smectite clay, a quarternary ammonium compound and a further substance including an unsubstituted or substituted amino or amido group.
The further substance may be present in an amount of approximately 1% by weight, typically in the range 0.2% to 5.0% and preferably in the range 0.4% to 2.0%.
Preferably, the further substance comprises urea. Sulphamic acid may also be used instead of or in combination with urea. Also, it is believed that substituted ureas would be suitable. More generally it is believed that similar substances, having an amino group adjacent to an electrophilic (electron-seeking) group, may be useful.
We have found that the addition of small quantities of such further substances to organoclay materials not only improves the ease of dispersion, but surprisingly also enables the same material to be used in both aliphatic and aromatic systems.
In atypical example, the basic composition may comprise: bentonite clay 51.68% urea 0.70% quarternary compound* 47.62% *The quarternary ammonium compound employed in this particular example was a commercially available product comprising a 75% active preparation of dimethyl dihydrogenated tallow ammonium chloride.
(Percentages are expressed by weight).
These substances may be mixed and reacted in a conventional manner by a wet process, that is to say the reaction is carried out in suspension in water, and the product is then dried. Alternatively, it is possible to mix the solid substances in the presence of a little water.
Instead of urea, the composition may utilise sulphamic acid, and in a typical examples such composition may comprise: bentonite clay 51.78% sulphamic acid 0.60% quaternary compound 47.62% Mixtures of urea and sulphamic acid in various ratios have also proved effective and it is thought that substituted ureas could also be employed successfully. Other compounds which it is contemplated may be satisfactory would likewise afford an amino group adjacent to an electrohilic group.
Instead of Bentonite, it is believed that other smectite clays conventionally used for the manufacture of organoclays for use as thixotropic agents, such as Hectorite, could also be used or that mixtures of such clays could be employed.
Likewise it is believed that other quarternary ammonium compounds previously used in the manufacture of organoclays could be used with a further substance in accordance with the invention.
The quantities of such further substance may vary fairly widely. In particular amounts in the range 0.4% to 1.1% have been found to be effective. Higher quantities could be used but probably without any further advantage, and lower quantities could be used down to values at which no significant effect is achieved, the minimum value probably being dependent on such factors as the mixing process and the particle size or range of particle sizes in any particular case.
1. An organoclay material comprising the reaction product of a Smectite clay, a quarternary ammonium compound and a further substance including an ubsubstituted or substituted amino or amido group.
2. An organoclay material according to Claim 1 wherein said further substance comprises urea.
3. An organoclay material according to Claim 1 wherein said further substance comprises sulphamic acid.
4. An organoclay material according any one of the preceding claims wherein said further substance is
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Organoclay materials This invention relates to organoclay materials, that is to say materials formed by the reaction of a smectite clay, such as Bentonite, with a quarternary ammonium compound. These materials are used for example as additives in the manufacture of paints and other coating compositions for the purpose of providing or modifying thixotropic properties. However, known organoclay materials previously used for this purpose suffer from a number of disadvantages. In particular, some are rather difficult to disperse, and some are more suitable for use with aliphatic systems whereas others are more suitable for use with aromatic systems. In accordance with the invention we provide an organoclay material comprising the reaction product of a smectite clay, a quarternary ammonium compound and a further substance including an unsubstituted or substituted amino or amido group. The further substance may be present in an amount of approximately 1% by weight, typically in the range 0.2% to 5.0% and preferably in the range 0.4% to 2.0%. Preferably, the further substance comprises urea. Sulphamic acid may also be used instead of or in combination with urea. Also, it is believed that substituted ureas would be suitable. More generally it is believed that similar substances, having an amino group adjacent to an electrophilic (electron-seeking) group, may be useful. We have found that the addition of small quantities of such further substances to organoclay materials not only improves the ease of dispersion, but surprisingly also enables the same material to be used in both aliphatic and aromatic systems. In atypical example, the basic composition may comprise: bentonite clay 51.68% urea 0.70% quarternary compound* 47.62% *The quarternary ammonium compound employed in this particular example was a commercially available product comprising a 75% active preparation of dimethyl dihydrogenated tallow ammonium chloride. (Percentages are expressed by weight). These substances may be mixed and reacted in a conventional manner by a wet process, that is to say the reaction is carried out in suspension in water, and the product is then dried. Alternatively, it is possible to mix the solid substances in the presence of a little water. Instead of urea, the composition may utilise sulphamic acid, and in a typical examples such composition may comprise: bentonite clay 51.78% sulphamic acid 0.60% quaternary compound 47.62% Mixtures of urea and sulphamic acid in various ratios have also proved effective and it is thought that substituted ureas could also be employed successfully. Other compounds which it is contemplated may be satisfactory would likewise afford an amino group adjacent to an electrohilic group. Instead of Bentonite, it is believed that other smectite clays conventionally used for the manufacture of organoclays for use as thixotropic agents, such as Hectorite, could also be used or that mixtures of such clays could be employed. Likewise it is believed that other quarternary ammonium compounds previously used in the manufacture of organoclays could be used with a further substance in accordance with the invention. The quantities of such further substance may vary fairly widely. In particular amounts in the range 0.4% to 1.1% have been found to be effective. Higher quantities could be used but probably without any further advantage, and lower quantities could be used down to values at which no significant effect is achieved, the minimum value probably being dependent on such factors as the mixing process and the particle size or range of particle sizes in any particular case. CLAIMS
1. An organoclay material comprising the reaction product of a Smectite clay, a quarternary ammonium compound and a further substance including an ubsubstituted or substituted amino or amido group.
2. An organoclay material according to Claim 1 wherein said further substance comprises urea.
3. An organoclay material according to Claim 1 wherein said further substance comprises sulphamic acid.
4. An organoclay material according any one of the preceding claims wherein said further substance is present in an amount in the range 0.2% to 5.0 /O by weight
5. An organoclay material according to any one of the preceding claims wherein said further substance is present in an amount in the range 0.4% to 2.0% by weight.
6. An organoclay material as claimed in Claim 1 and substantially as hereinbefore described.
7. Any novel feature or novel combination of features disclosed herein andlor shown in the accompanying drawings.
GB08329604A 1983-11-05 1983-11-05 Organoclay materials Withdrawn GB2151219A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB08329604A GB2151219A (en) 1983-11-05 1983-11-05 Organoclay materials
PCT/GB1984/000380 WO1985001946A1 (en) 1983-11-05 1984-11-05 Organoclay materials
EP84307632A EP0141668B1 (en) 1983-11-05 1984-11-05 Organoclay materials
DE8484307632T DE3477183D1 (en) 1983-11-05 1984-11-05 Organoclay materials
NO852704A NO167398C (en) 1983-11-05 1985-07-04 PROCEDURE FOR THE PREPARATION OF AN ORGANIC OIL MATERIAL.
DK306285A DK158147C (en) 1983-11-05 1985-07-04 PROCEDURE FOR MANUFACTURING AN ORGANOLIC MATERIAL
US07/081,566 US4752342A (en) 1983-11-05 1987-08-03 Organoclay materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08329604A GB2151219A (en) 1983-11-05 1983-11-05 Organoclay materials

Publications (2)

Publication Number Publication Date
GB8329604D0 GB8329604D0 (en) 1983-12-07
GB2151219A true GB2151219A (en) 1985-07-17

Family

ID=10551314

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08329604A Withdrawn GB2151219A (en) 1983-11-05 1983-11-05 Organoclay materials

Country Status (1)

Country Link
GB (1) GB2151219A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752760A (en) * 1972-03-09 1973-08-14 Calgon Corp Silt removal
EP0000595A1 (en) * 1977-06-29 1979-02-07 THE PROCTER & GAMBLE COMPANY Low-phosphate detergent composition for fabric washing
EP0026529A1 (en) * 1979-09-29 1981-04-08 THE PROCTER & GAMBLE COMPANY Detergent compositions
EP0026528A1 (en) * 1979-09-29 1981-04-08 THE PROCTER & GAMBLE COMPANY Detergent compositions
GB2008171B (en) * 1977-11-01 1982-03-31 Nl Industries Inc Oil base fliuds with organophilic clays having enhanced dispersiblity
GB2001063B (en) * 1977-07-01 1982-04-28 Nl Industries Inc Organophilic clay gellant
EP0076572A1 (en) * 1981-09-11 1983-04-13 The Procter & Gamble Company Fabric softening detergent additive products and use thereof in detergent compositions
GB2104540B (en) * 1978-05-15 1983-08-03 Colgate Palmolive Co Detergent compositions
EP0087889A1 (en) * 1982-03-03 1983-09-07 Imperial Chemical Industries Plc Production of vermiculite products and suspension for use therein
GB2140820A (en) * 1983-06-01 1984-12-05 Colgate Palmolive Co Perfume-containing carrier having surface-modified particles for detergent composition
GB2107693B (en) * 1981-10-19 1985-06-26 Nl Industries Inc Organophilic organic-clay complexes

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752760A (en) * 1972-03-09 1973-08-14 Calgon Corp Silt removal
EP0000595A1 (en) * 1977-06-29 1979-02-07 THE PROCTER & GAMBLE COMPANY Low-phosphate detergent composition for fabric washing
GB2001063B (en) * 1977-07-01 1982-04-28 Nl Industries Inc Organophilic clay gellant
GB2008171B (en) * 1977-11-01 1982-03-31 Nl Industries Inc Oil base fliuds with organophilic clays having enhanced dispersiblity
GB2104540B (en) * 1978-05-15 1983-08-03 Colgate Palmolive Co Detergent compositions
EP0026529A1 (en) * 1979-09-29 1981-04-08 THE PROCTER & GAMBLE COMPANY Detergent compositions
EP0026528A1 (en) * 1979-09-29 1981-04-08 THE PROCTER & GAMBLE COMPANY Detergent compositions
EP0076572A1 (en) * 1981-09-11 1983-04-13 The Procter & Gamble Company Fabric softening detergent additive products and use thereof in detergent compositions
GB2107693B (en) * 1981-10-19 1985-06-26 Nl Industries Inc Organophilic organic-clay complexes
EP0087889A1 (en) * 1982-03-03 1983-09-07 Imperial Chemical Industries Plc Production of vermiculite products and suspension for use therein
GB2140820A (en) * 1983-06-01 1984-12-05 Colgate Palmolive Co Perfume-containing carrier having surface-modified particles for detergent composition

Also Published As

Publication number Publication date
GB8329604D0 (en) 1983-12-07

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)