GB2105356A - Coating composition - Google Patents

Coating composition Download PDF

Info

Publication number
GB2105356A
GB2105356A GB08127371A GB8127371A GB2105356A GB 2105356 A GB2105356 A GB 2105356A GB 08127371 A GB08127371 A GB 08127371A GB 8127371 A GB8127371 A GB 8127371A GB 2105356 A GB2105356 A GB 2105356A
Authority
GB
United Kingdom
Prior art keywords
coating composition
composition according
polyol
isocyanate
diphenyl methane
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.)
Granted
Application number
GB08127371A
Other versions
GB2105356B (en
Inventor
Peter Joseph Huby Watson
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.)
DEBORAH COATINGS
Original Assignee
DEBORAH COATINGS
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 DEBORAH COATINGS filed Critical DEBORAH COATINGS
Priority to GB08127371A priority Critical patent/GB2105356B/en
Publication of GB2105356A publication Critical patent/GB2105356A/en
Application granted granted Critical
Publication of GB2105356B publication Critical patent/GB2105356B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/088—Removal of water or carbon dioxide from the reaction mixture or reaction components
    • C08G18/0885—Removal of water or carbon dioxide from the reaction mixture or reaction components using additives, e.g. absorbing agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225—Polyamines
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/36—Hydroxylated esters of higher fatty acids
    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2150/00—Compositions for coatings
    • C08G2150/50—Compositions for coatings applied by spraying at least two streams of reaction components

Abstract

A coating composition which can be built up to a substantial thickness of at least 5 cm in one application, has a fast curing time and is resistant to abrasion and impact preferably comprises 20-30% filler material such as silica flour, 35-55% polyol, 2-6% 4,4' methylene bis (2 chloro aniline), 0.2-1.2% 4,4' diamino diphenyl methane, 18-32% 4,4' diisocyano to diphenyl methane, 0.8-0.15% dibutyl tin dilaurate and 0.9-2.5% zeolite drying agent. The percentages quoted are by weight. The coating composition may further be coloured by the addition of pigments such as titanium dioxide, iron oxide and/or carbon black.

Description

SPECIFICATION Coating composition This invention relates to improvements in coating compositions.
The aim of the invention is to provide a coating composition which can be built up to a substantial thickness of at least 5 cm in one application, has a fast curing time and is resistant to abrasion and impact.
According to the invention, there is provided a coating composition which comprises a filler material, a polyol, an amine, an isocyanate, dibutyl tin dilaurate and a drying agent.
A preferred coating composition according to the invention comprises 2030% silica flour, 3555% polyol, 26% 4,4' methylene bis (2 chloro aniline), 0.21.2% 4,4' diamino diphenyl methane, 1 8-32% 4,4' diisocyanato diphenyl methane, 0.08-0.1 5% dibutyl tin dilaurate and 0.92.5% zeolite drying agent. The percentages quoted are by weight.
The silica flour may, if desired, be replaced by a 1/1 (by weight) mixture of magnesium aluminium silicate and barytes.
The polyol is preferably first pressure castor oil although, if desired, this may be replaced by other polyols of similar functionality such as polyether triols of approximately 1000 molecular weight or modified castor oil. The purpose of the amine modification is to improve the hardness of the castor oil.
The "unhindered" amine (4,4' diamino diphenyl methane) is very reactive and causes rapid gelation. This property is used to obtain "high build" properties in the coating composition.
The normal recommended ratio of diamine curative to isocyanate is 1 mole diamine to 2 isocyanate "equivalents". The coating composition according to the invention uses a ratio of 1 mole diamine to 4 isocyanate equivalents to improve the toughness of film.
Inevitably this causes a reduction in flexibility and if greater flexibility is required, the ratio of isocyanate to diamine may be reduced.
Other amines may be used to modify the properties of the coating composition according to the invention; for example cyclo aliphatic diamines, molecular weight range 200-260; cumene diamine; m. phenylene diamine.
The coating composition according to the invention may be coloured by the addition of pigments. Typicaily, titanium dioxide, iron oxide, carbon black or combinations of one or more of these substances may be used.
A preferred coating composition according to the invention will now be given in the following example: EXAMPLE Constituent % by wt.
Silica flour 26.8 First pressure castor oil 42.8 4,4' Methylene bis 3.1 (2 chloro aniline) 4,4' Diamino diphenyl 0.6 methane 4,4' Diisocyanato 24.7 diphenyl methane Dibutyl tin dilaurate 0.1 Zeolite drying agent 1.9 100.0 It will be found that a coating composition having the above constituents will achieve the aim of the invention to provide a coating composition which can be built up to a substantial thickness of at least 5 cm in one application, has a fast curing time and is resistant to abrasion and impact because it has an elastic/flexible film. The composition should be applied by spray, using metered, twin feed equipment.
It should be noted that the invention is not restricted to the above example but modifications and variations of the constituents may be made without departing from the scope of the invention.
1. A coating composition which comprises a filler material, a polyol, an amine, an isocyanate, dibutyl tin dilaurate and a drying agent.
2. A coating composition according to claim 1, wherein the filler material consists of silica flour.
3. A coating composition according to claim 1, wherein the filler material consists of a 1/1 (by weight) mixture of magnesium aluminium silicate and barytes.
4. A coating composition according to any preceding claim, wherein the polyol consists of first pressure castor oil or modified castor oil.
5. A coating composition according to any one of claims 1 ta 3, wherein the polyol consists of polyether triols of approximately 1000 molecular weight.
6. A coating composition according to any preceding claim, wherein the amine consists of 4,4' diamino diphenyl methane.
7. A coating composition according to any preceding claim, wherein the amine constituent includes cyclo aliphatic diamines, cumene diamine and/or phenylene diamine.
8. A coating composition according to claim 6 or claim 7, wherein the ratio of diamine to isocyanate is 1 to 4.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (14)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Coating composition This invention relates to improvements in coating compositions. The aim of the invention is to provide a coating composition which can be built up to a substantial thickness of at least 5 cm in one application, has a fast curing time and is resistant to abrasion and impact. According to the invention, there is provided a coating composition which comprises a filler material, a polyol, an amine, an isocyanate, dibutyl tin dilaurate and a drying agent. A preferred coating composition according to the invention comprises 2030% silica flour, 3555% polyol, 26% 4,4' methylene bis (2 chloro aniline), 0.21.2% 4,4' diamino diphenyl methane, 1 8-32% 4,4' diisocyanato diphenyl methane, 0.08-0.1 5% dibutyl tin dilaurate and 0.92.5% zeolite drying agent. The percentages quoted are by weight. The silica flour may, if desired, be replaced by a 1/1 (by weight) mixture of magnesium aluminium silicate and barytes. The polyol is preferably first pressure castor oil although, if desired, this may be replaced by other polyols of similar functionality such as polyether triols of approximately 1000 molecular weight or modified castor oil. The purpose of the amine modification is to improve the hardness of the castor oil. The "unhindered" amine (4,4' diamino diphenyl methane) is very reactive and causes rapid gelation. This property is used to obtain "high build" properties in the coating composition. The normal recommended ratio of diamine curative to isocyanate is 1 mole diamine to 2 isocyanate "equivalents". The coating composition according to the invention uses a ratio of 1 mole diamine to 4 isocyanate equivalents to improve the toughness of film. Inevitably this causes a reduction in flexibility and if greater flexibility is required, the ratio of isocyanate to diamine may be reduced. Other amines may be used to modify the properties of the coating composition according to the invention; for example cyclo aliphatic diamines, molecular weight range 200-260; cumene diamine; m. phenylene diamine. The coating composition according to the invention may be coloured by the addition of pigments. Typicaily, titanium dioxide, iron oxide, carbon black or combinations of one or more of these substances may be used. A preferred coating composition according to the invention will now be given in the following example: EXAMPLE Constituent % by wt. Silica flour 26.8 First pressure castor oil 42.8 4,4' Methylene bis 3.1 (2 chloro aniline) 4,4' Diamino diphenyl 0.6 methane 4,4' Diisocyanato 24.7 diphenyl methane Dibutyl tin dilaurate 0.1 Zeolite drying agent 1.9 100.0 It will be found that a coating composition having the above constituents will achieve the aim of the invention to provide a coating composition which can be built up to a substantial thickness of at least 5 cm in one application, has a fast curing time and is resistant to abrasion and impact because it has an elastic/flexible film. The composition should be applied by spray, using metered, twin feed equipment. It should be noted that the invention is not restricted to the above example but modifications and variations of the constituents may be made without departing from the scope of the invention. CLAIMS
1. A coating composition which comprises a filler material, a polyol, an amine, an isocyanate, dibutyl tin dilaurate and a drying agent.
2. A coating composition according to claim 1, wherein the filler material consists of silica flour.
3. A coating composition according to claim 1, wherein the filler material consists of a 1/1 (by weight) mixture of magnesium aluminium silicate and barytes.
4. A coating composition according to any preceding claim, wherein the polyol consists of first pressure castor oil or modified castor oil.
5. A coating composition according to any one of claims 1 ta 3, wherein the polyol consists of polyether triols of approximately 1000 molecular weight.
6. A coating composition according to any preceding claim, wherein the amine consists of 4,4' diamino diphenyl methane.
7. A coating composition according to any preceding claim, wherein the amine constituent includes cyclo aliphatic diamines, cumene diamine and/or phenylene diamine.
8. A coating composition according to claim 6 or claim 7, wherein the ratio of diamine to isocyanate is 1 to 4.
9. A coating composition according to any preceding claim, wherein the isocyanate consists of diisocyanato diphenyl methane.
10. A coating composition according to any preceding claim, wherein the dry agent consists of zeolite.
11. A coating composition according to any preceding claim and comprising 2030% filler material, 3555% polyol, 2-6% 4,4' methylene bis (2 chloro aniline), 0.2-1.2% 4,4' diamino diphenyl methane, 1 8-32% 4,4' diisocyanato diphenyl methane, 0.8-0.1 5% dibutyl tin dilaurate and 0.92.5% zeolite drying agent.
12. A coating composition according to any preceding claim and further including one or more pigments.
13. A coating composition substantially as described herein with reference to the example.
13. A coating composition according to claim 12, wherein the pigments comprise titanium dioxide, iron oxide and/or carbon black.
14. A coating composition substantially as described herein with reference to the example.
New claims or amendments to claims filed on 15 Sept. 1982.
Superseded claims 1 to
14.
New or amended claims:
1. A coating composition suitable for spray application which comprises a filler material, a polyol, an isocyanate, dibutyl tin dilaurate and a zeolite drying agent as well as a polyamine serving as a cross linking agent.
2. A coating composition according to claim 1, wherein the filler material consists of silica flour.
3. A coating composition according to claim 1, wherein the filler material consists of a 1/1 (by weight) mixture of magnesium aluminium silicate and barytes.
4. A coating composition according to any preceding claim, wherein the polyol consists of first pressure castor oil or modified castor oil.
5. A coating composition according to any one of claims 1 to 3, wherein the polyol consists of polyether triols of approximately 1000 molecular weight.
6. A coating composition according to any preceding claim, wherein the polyamine consists of 4,4' diamino diphenyl methane.
7. A coating composition according to any preceding claim, wherein the polyamine constituent includes cyclo aliphatic diamines, cumene diamine and/or phenylene diamine.
8. A coating composition according to claim 6 or claim 7, wherein the ratio of diamine to isocyanate is 1 to 4.
9. A coating composition according to any preceding claim, wherein the isocyanate consists of diisocyanate diphenyl methane.
10. A coating composition according to any preceding claim and comprising 2030% filler material, 35-55% polyol, 2-6% 4,4' methylene bis (2 chloro aniline), 0.2-1.2% 4,4' diamino diphenyl methane, 1 8-32% 4,4' diisocyanato diphenyl methane, 0.8-0.1 5% dibutyl tin dilaurate and 0.92.5% zeolite drying agent.
11. A coating composition according to any preceding claim and further including one or more pigments.
12. A coating composition according to claim 11, wherein the pigments comprise titanium dioxide, iron oxide and/or carbon black.
GB08127371A 1981-09-10 1981-09-10 Coating composition Expired GB2105356B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08127371A GB2105356B (en) 1981-09-10 1981-09-10 Coating composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08127371A GB2105356B (en) 1981-09-10 1981-09-10 Coating composition

Publications (2)

Publication Number Publication Date
GB2105356A true GB2105356A (en) 1983-03-23
GB2105356B GB2105356B (en) 1984-09-26

Family

ID=10524417

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08127371A Expired GB2105356B (en) 1981-09-10 1981-09-10 Coating composition

Country Status (1)

Country Link
GB (1) GB2105356B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126676A (en) * 1984-07-16 1986-02-05 Dainippon Toryo Co Ltd Urethane resin coating material composition
EP0228190A2 (en) * 1985-12-16 1987-07-08 Ethyl Corporation RIM polyurethanes comprising mixed diamine chain extenders and process and composition for their production
EP0270665A1 (en) * 1986-05-23 1988-06-15 Ameron, Inc. Solventless polyurethane spray compositions and method for applying them
EP0667362A1 (en) * 1994-02-09 1995-08-16 Bayer Corporation Polyurea coating compositions having improved pot lives
WO2010118527A1 (en) * 2009-04-17 2010-10-21 Crosslink Technology Inc. Compositions comprising solvated aromatic amines and methods for the preparation thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126676A (en) * 1984-07-16 1986-02-05 Dainippon Toryo Co Ltd Urethane resin coating material composition
EP0228190A2 (en) * 1985-12-16 1987-07-08 Ethyl Corporation RIM polyurethanes comprising mixed diamine chain extenders and process and composition for their production
EP0228190A3 (en) * 1985-12-16 1988-01-13 Ethyl Corporation Mixed diamine chain extenders and their use in polyurethane production
EP0270665A1 (en) * 1986-05-23 1988-06-15 Ameron, Inc. Solventless polyurethane spray compositions and method for applying them
EP0270665A4 (en) * 1986-05-23 1988-09-28 Ameron Inc Solventless polyurethane spray compositions and method for applying them.
EP0667362A1 (en) * 1994-02-09 1995-08-16 Bayer Corporation Polyurea coating compositions having improved pot lives
WO2010118527A1 (en) * 2009-04-17 2010-10-21 Crosslink Technology Inc. Compositions comprising solvated aromatic amines and methods for the preparation thereof
US8748540B2 (en) 2009-04-17 2014-06-10 Crosslink Technology, Inc Compositions comprising solvated aromatic amines and methods for the preparation thereof

Also Published As

Publication number Publication date
GB2105356B (en) 1984-09-26

Similar Documents

Publication Publication Date Title
CA1247784A (en) Elastomer polyurethane-polyurea coatings based on bis(4-isocyanatocyclohexyl) methane
US5895806A (en) Polyurethane composition useful for coating cylindrical parts
CA2020349C (en) Aliphatic spray polyurea elastomers
US5616677A (en) Preparation of sprayable aliphatic polyurea elastomers having improved properties
US4623702A (en) Two-component adhesive or sealing composition
DE3063208D1 (en) Thermosetting coating compositions and their use for the coating of substrates
JPH04175326A (en) Quickly drying polyurea elastomer
EP0748827A1 (en) Spray polyurea elastomers
TW376391B (en) Cast polyurethane composition
EP0802209A1 (en) Polyurea spray railcar lining system
KR101141511B1 (en) Environment friendly polyurea paint composition having high elasticity and method using the same
BR0206880A (en) Polyurethane resin and method of production thereof, coating composition comprising a polyurethane resin, use of a polyurethane resin for printing plastic substrates
CA2272355A1 (en) Aqueous two-component polyurethane coating compositions
EP1179574B1 (en) Coating for drinking water pipelines
WO2014140106A1 (en) Repair liquid for conveyor belts
HU9401247D0 (en) Coating agents, process for their manufacture and their use to produce coatings
SG191020A1 (en) Mdi based linings and membranes from prepolymers with very low free monomeric isocyanates
GB2105356A (en) Coating composition
AU598435B2 (en) Polyhydroxyalkane/aromatic diamine chain extenders
DE10018637A1 (en) Polysiloxane composition, useful for surface treatment of inorganic particles is prepared from alcohol and alkoxysilyl group containing polysiloxane
US3591547A (en) Urethane coating compositions based on polyols prepared from fluorinated glycidyl ethers
AU4429493A (en) Hardener composition for the production of polyurethane shaped articles
WO1986005796A1 (en) A curable elastic composition consisting of liquid urethane polymer and solid, cured rubber and use thereof
GB2121813A (en) Polyurethane composition
JP3351480B2 (en) Curable polyurethane composition

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930910