EP0333723A1 - Liants de resine alkyde modifies sechant a l'air, procedes pour leur fabrication, agents de revetement a base desdits liants ainsi que leur emploi comme agents de peinture batiment - Google Patents

Liants de resine alkyde modifies sechant a l'air, procedes pour leur fabrication, agents de revetement a base desdits liants ainsi que leur emploi comme agents de peinture batiment

Info

Publication number
EP0333723A1
EP0333723A1 EP87907325A EP87907325A EP0333723A1 EP 0333723 A1 EP0333723 A1 EP 0333723A1 EP 87907325 A EP87907325 A EP 87907325A EP 87907325 A EP87907325 A EP 87907325A EP 0333723 A1 EP0333723 A1 EP 0333723A1
Authority
EP
European Patent Office
Prior art keywords
weight
drying
alkyd resin
trimethylolpropane
pentaerythritol
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.)
Pending
Application number
EP87907325A
Other languages
German (de)
English (en)
Inventor
Jörg Pronobis
Udo Reiter
Bernhard Hantschke
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.)
BASF Farben und Fasern AG
Original Assignee
BASF Lacke und Farben AG
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 BASF Lacke und Farben AG filed Critical BASF Lacke und Farben AG
Publication of EP0333723A1 publication Critical patent/EP0333723A1/fr
Pending 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
    • C08G18/40—High-molecular-weight compounds
    • C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • C08G18/631—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyesters and/or polycarbonates
    • 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
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4288—Polycondensates having carboxylic or carbonic ester groups in the main chain modified by higher fatty oils or their acids or by resin acids
    • 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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/46—Polyesters chemically modified by esterification
    • C08G63/48—Polyesters chemically modified by esterification by unsaturated higher fatty oils or their acids; by resin acids
    • 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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/66—Polyesters containing oxygen in the form of ether groups
    • 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids

Definitions

  • Air-drying modified alkyd resin binders processes for their preparation, coating compositions based on the modified alkyd resin binders and their use as architectural paints
  • the present invention relates to air-drying alkyd resin binders, prepared from drying and / or semi-drying fatty acids, di- and / or polyols, with di-trimethylolpropane and / or di-pentaerythritol used as the alcohol component, and polycarboxylic acids, processes for the preparation of the air-drying alkyd resin binders, coating agents on their basis and their use as architectural paints.
  • Paints based on water-soluble alkyd resins require up to 20% by weight of volatile organic solvents in order to be easy to process.
  • the dimer of trimethylolpropane, di-trimethylolpropane, an alcohol with 4 primary hydroxyl groups, is recommended for use in air-drying alkyd resins and saturated polyester resins, with di-trimethylolpropane being used to replace part of the polyol content.
  • this polyhydric alcohol only represents up to about a third of the total polyol content.
  • the modification with di-trimethylolpropane leads to an increased flexibility of the resulting coatings without influencing the degree of hardness .
  • the dimer of pentaerythritol, di-pentaerythritol, an alcohol with 6 primary hydroxyl groups is recommended as a raw material for alkyd resins for coating agents and printing inks.
  • Vinyl- and acrylic-modified alkyd resins are known as binders for air-drying lacquers (see, for example, H. Kittel, textbook on lacquers and coatings, volume I, part 1, published by WA Colomb, Stuttgart-Berlin 1971, p. 426 ff.). It deals are alkyd resins in which vinyl group-containing monomers, especially styrene, or acrylate monomers are incorporated into the alkyd resin molecule. They can be produced, for example, by reacting alkyd resins, preferably using catalysts, such as peroxides, with the ethylenically unsaturated monomers.
  • catalysts such as peroxides
  • the advantage of modifying alkyd resins with vinyl or acrylate monomers is, in particular, faster drying or thorough drying. Coating agents based on vinyl and acrylic-modified alkyd resins can be made thicker
  • binders which can be processed into air-drying coating compositions with a solids content of at least 70% by weight with an application viscosity.
  • the resulting coating compositions should have good drying properties and in particular good drying properties with sufficiently high layer thicknesses.
  • air-drying alkyd resin binders of the type mentioned at the outset which are characterized in that they are obtainable from a) 40 to 75% by weight of drying and / or semi-drying fatty acids,
  • Di-trimethylolpropane or di-pentaerythritol are to be understood as the dimers of trimethylolpropane or pentaerythritol which are connected to one another via 2 hydroxyl groups by an ether group.
  • Suitable drying and / or semi-drying fatty acids which generally have 6 to 24 carbon atoms per molecule, are soybean oil fatty acid, safflower oil fatty acid, sunflower oil fatty acid, cottonseed oil fatty acid, castor oil fatty acid, tall oil fatty acid and linseed oil fatty acid.
  • non-drying fatty acids such as Coconut oil fatty acid, isononanoic acid and ⁇ -ethylhexanoic acid can also be used.
  • component b) includes trimethylolpropane, glycerol, ethylene glycol, pentaerythritol, neopentyl glycol, propylene glycol, 1,6-hexanediol, trimethylolethane, 1,4- Dimethylolcyclohexane, 1,3-dimethylolcyclohexane, 1,2-cyclohexanediol and 1,4-cyclohexanediol are possible.
  • Suitable polycarboxylic acids are dicarboxylic acids, such as, for example, orthophthalic acid, terephthalic acid, tetrahydrophthalic acid, hexahydrophthalic acid, dimer fatty acids, adipic acid and azelaic acid.
  • diisocyanates such as, for example, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate and hexamethylene-1,6-diisocyanate, can also be used.
  • diisocyanates leads to the formation of urethane alkyds.
  • Suitable monocarboxylic acids are, for example, benzoic acid, para-tertiary butylbenzoic acid, abietic acid, pivalic acid, lauric acid, stearic acid, cyclopentane carboxylic acid and cyclohexane carboxylic acid.
  • the monocarboxylic acids can be used in a proportion of up to 20% by weight, based on the total weight of the alkyd resin building blocks.
  • ethylenically unsaturated monomers are styrene, vinyl toluene, ⁇ -methylstyrene, divinylbenzene, acrylic acid, methacrylic acid, esters of maleic and fumaric acid, methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, isopropyl acrylate, isobutylacrylate, isocyanyl acrylate, pentyl acrylate 2-ethylhexyl acrylate, octyl acrylate, 3,5,5-trimethylhexyl acrylate, decyl acrylate, dodecyl acrylate, hexadecyl acrylate, methyl methacrylate, ethyl methacrylate, propyl methacrylate, isopropyl methacrylate, butyl methacrylate, cyclohexyl acrylate,
  • binders which have a very good solubility in white spirit, although the alkyd resins have relatively high molecular weights. Since the binders according to the invention are of low viscosity, they can be processed into coating compositions with a solids content of at least 70% by weight with an application viscosity. The viscosities of the 80% solutions of the binders according to the invention in white spirit are approximately in the range from 2.0 to 12.0 dPa.s.
  • the modified alkyd resins generally have acid numbers from about 2 to 20 mg KOH / g and hydroxyl numbers from about 2 to 100 mg KOH / g.
  • Modification with vinyl or acrylate monomers results in good drying of the films and, in particular, thorough drying.
  • the alcohol component b) consists of more than 95% by weight of di-pentaerythritol and / or di-trimethylolpropane.
  • di-pentaerythritol and / or di-trimethylolpropane can also be used as the alcohol component.
  • component a 60 to 78% by weight of drying and / or semi-drying fatty acids are used as component a).
  • the invention also relates to a process for the preparation of the binders according to the invention, which is characterized in that a) 40 to 75% by weight of drying and / or semi-drying fatty acids,
  • a polymerization initiator optionally carried out using a polymerization initiator, the sum of components a), b), c), d), e) and f) being 100% by weight.
  • the alkyd resin formation takes place by means of a polyesterification reaction which is well known to the person skilled in the art.
  • a catalyst for the formation of urethane can optionally be used.
  • a particularly suitable catalyst for polyurethane formation is dibutyltin dilaurate.
  • alcohol component b) consists of more than 95% by weight of di-pentaerythritol and / or di-trimethylolpropane.
  • the alcohol component can also consist exclusively of di-pentaerythritol and di-trimethylolpropane. It is particularly advantageous if 60 to 78% by weight of drying and / or semi-drying fatty acids are used as component a).
  • Suitable drying and / or semi-drying fatty acids which can be used in the process according to the invention are soybean oil fatty acid, safflower oil fatty acid, sunflower oil fatty acid, cottonseed oil fatty acid, castor oil fatty acid, Tall oil fatty acid and linseed oil fatty acid.
  • trimethylolpropane In addition to di-pentaerythritol and di-trimethylolpropane, trimethylolpropane, glycerol, ethylene glycol, pentaerythritol, neopentyglycol, propylene glycol, 1,6-hexanediol, trimethylolethane, 1,4-dimethylolcyclohexane, 1,3-dimethylolcyclohexane, 1 , 2-cyclohexanediol and 1,4-cyclohexanediol in question.
  • Suitable polycarboxylic acids are dicarboxylic acids, e.g. orthophthalic acid, terephthalic acid, tetrahydrophthalic acid, hexahydrophthalic acid, dimer fatty acids, adipic acid and azelaic acid.
  • Suitable diisocyanates (component d), monocarboxylic acids (component e) and ethylenically unsaturated monomers (component f) are the components mentioned in connection with the alkyd resin binder according to the invention.
  • the invention further relates to coating compositions with a solids content of at least 75% by weight, which contain the air-drying, modified alkyd resins according to the invention described above as essential binders and, if appropriate, organic solvents, pigments, fillers, auxiliaries and drying agents.
  • the alkyd resin binders according to the invention it is possible to produce coating compositions with a high solids content, so-called "high-solid lacquers”.
  • the binders according to the invention lead to a lowering of the viscosity compared to known alkyd resin binders.
  • the coating compositions according to the invention advantageously have a solids content in the range from 85 to 100% by weight. It is therefore also possible with the aid of the air-drying modified alkyd resins according to the invention to produce readily spreadable coating agents without solvents.
  • the coating compositions according to the invention can optionally contain pigments, fillers, auxiliaries and drying agents. Pigments include both natural and synthetic, transparent and non-transparent pigments.
  • drying agents are metal salts of (cyclo) aliphatic, natural or synthetic acids, e.g. Linoleic acid, naphthenic acid and 2-ethylhexanoic acid, suitable metals being cobalt, manganese, lead, zirconium, calcium and zinc. Of course, mixtures of desiccants can also be used.
  • the dry substances are used in a proportion of 10 -3 to about 3 (% by weight, based on the binder solid)
  • the invention also relates to a process for producing the coating compositions according to the invention, in which the alkyd resin binders prepared according to the invention and, if appropriate, organic solvents and pigments, fillers, auxiliaries and drying agents are processed into a coating composition by mixing and, if appropriate, dispersing.
  • the coating compositions of the invention are particularly suitable for use as architectural paints. They can be applied in sufficiently thick layers and have good drying properties. In addition, the drying properties in particular can be assessed as very good.
  • the film formation of the coating compositions is essentially based on oxidative drying, and of course physical drying also takes place if solvents are used.
  • the invention is explained in more detail below on the basis of exemplary embodiments. Parts mean parts by weight unless otherwise stated.
  • the tests are carried out in a reactor which is designed as follows:
  • the reactor consists of an agitator, a nitrogen feed line and a separator, which separates the azeotropic mixture of aromatics and water via a cooler. It can be heated electrically, inductively or with thermal oil. The temperature is controlled by a thermometer that regulates the temperature of the work piece.
  • the condensation reaction is carried out in a known manner.
  • the reactor To polymerize the ethylenically unsaturated monomers, the reactor must be equipped with a premixing tank and an initiator feed vessel.
  • An acrylate-modified alkyd resin binder was prepared from 704 parts of a drying fatty acid, 28 g of para-tert-butylbenzoic acid, 178 parts of di-pentaerythritol, 9.5 parts of diethylene glycol, 53.4 parts of phthalic anhydride, 60.1 parts of isophthalic acid and 34 parts of ethylhexyl acrylate, the initiator being 0.8 96 para-tertiary butyl peroxide was used at a polymerization temperature of 140 ° C.
  • the rating refers to grades 1-6, with grade 1 being the best grade.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Paints Or Removers (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Les liants de résine alkyde sont obtenus à partir de a) 40 à 75 % en poids d'acides gras siccatifs ou semi-siccatifs, b) 15 à 35 % en poids de di- et/ou polyols, au moins 80 % en poids des alcools étant composé de di-pentaérythrite et/ou de di-triméthylolpropane, c) 5 à 25 % en poids d'acides polycarboxyliques ou leurs anhydrides, d) 0 à 10 % en poids de diisocyanates, e) 0 à 20 % en poids d'acides monocarboxyliques et f) 2 à 12 % en poids de monomères éthyléniquement insaturés, la somme des constituants a), b), c), d), e) et f) atteignant 100 %. Sont également décrits des procédés pour la fabrication desdits liants, des agents de revêtement à base de ces derniers ainsi que l'emploi desdits agents, notamment comme agents de peinture bâtiment séchant à l'air.
EP87907325A 1986-11-18 1987-11-14 Liants de resine alkyde modifies sechant a l'air, procedes pour leur fabrication, agents de revetement a base desdits liants ainsi que leur emploi comme agents de peinture batiment Pending EP0333723A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863639471 DE3639471A1 (de) 1986-11-18 1986-11-18 Lufttrocknende modifizierte alkydharzbindemittel, verfahren zu ihrer herstellung, ueberzugsmittel auf der basis der modifizierten alkydharzbindemittel sowie deren verwendung als bautenanstrichmittel
DE3639471 1986-11-18

Publications (1)

Publication Number Publication Date
EP0333723A1 true EP0333723A1 (fr) 1989-09-27

Family

ID=6314257

Family Applications (2)

Application Number Title Priority Date Filing Date
EP87907325A Pending EP0333723A1 (fr) 1986-11-18 1987-11-14 Liants de resine alkyde modifies sechant a l'air, procedes pour leur fabrication, agents de revetement a base desdits liants ainsi que leur emploi comme agents de peinture batiment
EP87116826A Expired - Lifetime EP0268236B1 (fr) 1986-11-18 1987-11-14 Liant de résine alkyde modifié séchant à l'air, son procédé de préparation, composition de revêtement à base du liant de résine alkyde modifié et son utilisation comme peinture pour bâtiment

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP87116826A Expired - Lifetime EP0268236B1 (fr) 1986-11-18 1987-11-14 Liant de résine alkyde modifié séchant à l'air, son procédé de préparation, composition de revêtement à base du liant de résine alkyde modifié et son utilisation comme peinture pour bâtiment

Country Status (6)

Country Link
EP (2) EP0333723A1 (fr)
AT (1) ATE61806T1 (fr)
BR (1) BR8707885A (fr)
DE (2) DE3639471A1 (fr)
ES (1) ES2021682B3 (fr)
WO (1) WO1988003936A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460608B (sv) * 1987-06-24 1989-10-30 Bergvik Kemi Ab Bindemedelskomposition foer framstaellning av en lufttorkande lack samt lufttorkande lack
AT390800B (de) * 1988-09-23 1990-06-25 Vianova Kunstharz Ag Verfahren zur herstellung von niedrigviskosen, lufttrocknenden bindemitteln und deren verwendung fuer festkoerperreiche, schnelltrocknende maler- und bautenlacke

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE859952C (de) * 1942-07-09 1952-12-18 Degussa Verfahren zur Herstellung von Kunstharzen
US2459581A (en) * 1944-12-20 1949-01-18 Hercules Powder Co Ltd Resinous mixed esters containing a pentaerythritol
AU467946B2 (en) * 1972-05-09 1975-12-18 Dulux Australia Ltd Novel unsaturated esters
JPS5923324B2 (ja) * 1976-11-29 1984-06-01 三菱油化株式会社 油変性アルキツド樹脂組成物
DE3425183A1 (de) * 1984-07-09 1986-01-16 Henkel KGaA, 4000 Düsseldorf Ungesaettigte polyester

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8803936A1 *

Also Published As

Publication number Publication date
ES2021682B3 (es) 1991-11-16
BR8707885A (pt) 1989-10-31
ATE61806T1 (de) 1991-04-15
EP0268236A2 (fr) 1988-05-25
EP0268236A3 (en) 1989-02-01
DE3768769D1 (de) 1991-04-25
WO1988003936A1 (fr) 1988-06-02
EP0268236B1 (fr) 1991-03-20
DE3639471A1 (de) 1988-05-19

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