GB1095953A - Aqueous stoving lacquers - Google Patents

Aqueous stoving lacquers

Info

Publication number
GB1095953A
GB1095953A GB28443/66A GB2844366A GB1095953A GB 1095953 A GB1095953 A GB 1095953A GB 28443/66 A GB28443/66 A GB 28443/66A GB 2844366 A GB2844366 A GB 2844366A GB 1095953 A GB1095953 A GB 1095953A
Authority
GB
United Kingdom
Prior art keywords
acid
tetrahydrophthalic
acids
optionally
alkyd
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.)
Expired
Application number
GB28443/66A
Inventor
Rolf Dhein
Karl Raichle
Hermann Schnell
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1095953A publication Critical patent/GB1095953A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/52Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
    • C08G63/54Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/553Acids or hydroxy compounds containing cycloaliphatic rings, e.g. Diels-Alder adducts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

Aqueous stoving lacquers comprise amine salts of tetrahydrophthalic or endomethylene-tetrahydrophthalic acid semiesters of alkyd resins which are fatty acid modified and contain free hydroxyl groups, said alkyd resins containing residues of polyols having three or more hydroxy groups, and optionally also of diols, and dicarboxylic acids in molar ratios of 1-1.3:1, and having acid numbers below 15 and hydroxy numbers of 90-300 before semi-esterification, the semi-esters having acid numbers of 30-80 and hydroxy numbers of 60-200. Suitable components of the alkyd are glycerol, trimethylolpropane, pentaerythritol, dipentaerythritol, and sorbitol, optionally with minor amounts of ethylene glycol, diethylene glycol, the butylene glycols and neopentylene glycol; adipic, isophthalic and phthalic acids. Suitable modifiers are castor, dehydrated castor, coconut, soya and linseed oils; soya, linseed, coconut and dehydrated castor oil fatty acids, ricinoleic and hydrogenated ricinoleic acids, natural and synthetic first runnings fatty acids and fatty acids from paraffins, and optionally also benzoic, t-butylbenzoic and resinic acids. Suitable amines are primary, secondary and tertiary alkylamines, aminoalcohols, amino-ethers, e.g. methyl-, diethyl-, triethyl-, ethanol-, diethanol-, triethanol-, N - methyl - ethanol-, N:N - dimethyl - ethanol-, 3 - propanol-, and 3 - methoxypropyl - amines and morpholine. The lacquers may also comprise water-miscible organic solvents, e.g. alcohols, ether-alcohols, esters, ketones, keto-alcohols and ethers, e.g. ethylene glycol methyl, ethyl or butyl monoethers. The neutralized product should have a pH of less than 8 in 30 solids per cent solution. In Example (1) a pentaerythritol/natural first runnings fatty acid (of A.N. 340-350)/phthalic anhydride alkyd of acid number (A.N.) 6 (molar ratios 1:0.9:0.9) is heated at 140 DEG C. for 30 minutes with tetrahydrophthalic anhydride to give a product of AN=40, which is treated with ethylene glycol monobutyl ether and dimethyl-ethanolamine and water to give a 55% lacquer solution, which is mixed with rutile TiO2 and a methylated melamine-formaldehyde solution to give a white stoving lacquer. In Example (5) the fatty acid used is a coconut/ricinoleic mixture, and in Example (6) the endomethylene tetrahydrophthalic acid semiester is prepared, the other components being the same.ALSO:Aqueous stoving lacquers contain at least one amine salt of tetrahydrophthalic acid or endomethylene tetrahydrophthalic acid semiesterified with an alkyd resin derived from at least one polyol having three or more hydroxy groups, and optionally also at least one diol, and a dicarboxylic acid, modified with a fatty acid and containing free hydroxy groups (see Division C3). In Examples lacquers are prepared from pentaerythritol-fatty acid-phthalic anhydride alkyds esterified with tetrahydrophthalic or endomethylene tetrahydrophthalic anhydride and dissolved in ethylene glycol monobutyl ether and aqueous dimethyl-ethanolamine. TiO2 and a methylated melamine resin are added and the lacquer is applied by spray gun to metal sheets, which are air-dried and stoved.
GB28443/66A 1965-06-24 1966-06-24 Aqueous stoving lacquers Expired GB1095953A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF0046889 1965-06-24
DEF0046426 1965-06-24

Publications (1)

Publication Number Publication Date
GB1095953A true GB1095953A (en) 1967-12-20

Family

ID=25976837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28443/66A Expired GB1095953A (en) 1965-06-24 1966-06-24 Aqueous stoving lacquers

Country Status (8)

Country Link
AT (1) AT278206B (en)
BE (1) BE682926A (en)
CH (1) CH463670A (en)
DE (2) DE1519146A1 (en)
DK (1) DK119718B (en)
ES (1) ES328204A1 (en)
FR (1) FR1484344A (en)
GB (1) GB1095953A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346044A (en) 1979-07-28 1982-08-24 Bayer Aktiengesellschaft Water-soluble air-drying alkyd resins, process for their preparation and their use as bases for non-yellowing lacquers
US4413116A (en) * 1981-04-14 1983-11-01 Bayer Aktiengesellschaft Process for the preparation of polyesters or alkyd resins, resins which may be obtained according to this process and the use thereof as lacquer binders
GB2136007A (en) * 1982-12-30 1984-09-12 Nippon Paint Co Ltd Resinous composition its preparation and coating composition containing the same
AU583037B2 (en) * 1984-05-04 1989-04-20 Franz Haas Waffelmaschinen Industriegesellschaft Mbh Process and apparatus for making rolled wafer cones
WO1995009880A1 (en) * 1993-10-04 1995-04-13 Ppg Industries, Inc. Waterborne polyesters having improved saponification resistance
CN115677991A (en) * 2022-11-04 2023-02-03 江苏三木化工股份有限公司 Water-based alkyd resin with high solid content and high flash point baking varnish and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT369028B (en) * 1981-06-12 1982-11-25 Vianova Kunstharz Ag METHOD FOR THE PRODUCTION OF AIR- AND OVEN-DRYING WATER-DETUMABLE VARNISH BINDERS

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346044A (en) 1979-07-28 1982-08-24 Bayer Aktiengesellschaft Water-soluble air-drying alkyd resins, process for their preparation and their use as bases for non-yellowing lacquers
US4413116A (en) * 1981-04-14 1983-11-01 Bayer Aktiengesellschaft Process for the preparation of polyesters or alkyd resins, resins which may be obtained according to this process and the use thereof as lacquer binders
GB2136007A (en) * 1982-12-30 1984-09-12 Nippon Paint Co Ltd Resinous composition its preparation and coating composition containing the same
AU583037B2 (en) * 1984-05-04 1989-04-20 Franz Haas Waffelmaschinen Industriegesellschaft Mbh Process and apparatus for making rolled wafer cones
WO1995009880A1 (en) * 1993-10-04 1995-04-13 Ppg Industries, Inc. Waterborne polyesters having improved saponification resistance
US5552475A (en) * 1993-10-04 1996-09-03 Ppg Industries, Inc. Waterborne polyesters having improved saponification resistance
CN115677991A (en) * 2022-11-04 2023-02-03 江苏三木化工股份有限公司 Water-based alkyd resin with high solid content and high flash point baking varnish and preparation method thereof

Also Published As

Publication number Publication date
DE1519147A1 (en) 1970-09-03
DK119718B (en) 1971-02-15
DE1519146A1 (en) 1969-12-11
AT278206B (en) 1970-01-26
BE682926A (en) 1966-12-22
FR1484344A (en) 1967-06-09
ES328204A1 (en) 1967-08-01
CH463670A (en) 1968-10-15

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