AU596934B2 - Creation of Inventions and Patents with Artificial Intelligence

AU596934B2 – Melamine-formaldehyde/styrene-acrylate paint detackification composition
– Google Patents

AU596934B2 – Melamine-formaldehyde/styrene-acrylate paint detackification composition
– Google Patents
Melamine-formaldehyde/styrene-acrylate paint detackification composition

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Publication number
AU596934B2

AU596934B2
AU16998/88A
AU1699888A
AU596934B2
AU 596934 B2
AU596934 B2
AU 596934B2
AU 16998/88 A
AU16998/88 A
AU 16998/88A
AU 1699888 A
AU1699888 A
AU 1699888A
AU 596934 B2
AU596934 B2
AU 596934B2
Authority
AU
Australia
Prior art keywords
paint
styrene
melamine
formaldehyde
acrylate
Prior art date
1987-06-12
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.)

Ceased

Application number
AU16998/88A
Other versions

AU1699888A
(en

Inventor
Shu-Jen Wu Huang
Charles R. Kiss
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.)

ChampionX LLC

Original Assignee
Nalco Chemical Co
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.)
1987-06-12
Filing date
1988-06-02
Publication date
1990-05-17

1988-06-02
Application filed by Nalco Chemical Co
filed
Critical
Nalco Chemical Co

1988-12-15
Publication of AU1699888A
publication
Critical
patent/AU1699888A/en

1990-05-17
Application granted
granted
Critical

1990-05-17
Publication of AU596934B2
publication
Critical
patent/AU596934B2/en

2008-06-02
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

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Classifications

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

C09D9/00—Chemical paint or ink removers

C—CHEMISTRY; METALLURGY

C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR

C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions

C09D7/71—Paint detackifiers or coagulants, e.g. for the treatment of oversprays in paint spraying installations

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S210/00—Liquid purification or separation

Y10S210/93—Paint detackifying

Description

COMMONWA- ST 12JU 88 A 0 SYDNEY PATENTS ACT 1952 Q 0 M ?P L E T E S P EC I FTI C AT 1 ON FOR OFFICE USE:* Class Int.Class Application Num,,ber: ILodged: Complete Specification Lodged: Accepted: Published: a “Petlated Art: a 2 I’t I~ LUJ 2 i V 1-1- Name of Applicant: 0,&Aodress of Applicant: k 4 ctual. :,aventor: NALCO CHEMICAL COMPANY 60566-1024, United States of America Charles R. Kiss and Shu-Jen Wu Huang Address for Service: SHELSTON WATERS, 55 Clarence Street, Sydney Complete Specification for the Invention entitled: ‘MELAMINE-FORMAL1DEHYDE/STYRENE-ACRYLATE
PAINT
DETACKIFICATION COMPOSITION” The foll~owing statement is a full description of this invention, including the best method of performing it known to me/us;- -1I- MELAMINE-FORMALDHYDE
/STYRENE-ACRYLATE
PAINT’ DETACKIFICATION COMPOSITION FielU of the Invention The invention relates to paint spray detackifying compositions and the method of using them.
Dosages are given on an actives basis unless otherwise specified.
Molecular weight is defined to be weight average molecular weight.
Background of the Invention In the 1980’s the paint technioogy in the automotive S industry, as well as,- industry in general has advanced from the utilization of low dispersion lacquers to high solids enamels.
This has been due to a need to reduce solvent emission and disposal. These high solid enamels are particularly useful in basecoat/clearcoat technology.
As the paint technology has advanced, more emphasis h-s been on spray booth detackifiers as high solid enamels are much harder to detackify than low dispersion lacquers.
“*ro satisfy these needs, the compositions cf this application have been developed.
Thus, it is an object of this invention to provide a detackifier that can kill automotive basecoat/clearcoat paints and sta)y non-sticky -hrouqhout the whole process.
It is an object of this invention to provide a composition that will provide a detackified paint sludge having minimum volume and hioh dewaterability.
It is an object of the invention to provide a detackifier that will have low toxicity.
SI
-1 1 Summary of the Invention The invention .ncludes a Paint detackifying composition and the method of using it. In broadest terms, the paint detar”ifyinq composition includes a melamine-formaldehyde resin styrenevacrylate resin mixture with a mole ratio within the range, of 2:1 to 4:1, respectively. This mixture preferably is provided in an aqueous system at a dosage of at least 25 ppm and at most 800 opm.
The Discussion of the Invention In practice, a suitable melamine-formaldehyde resin is provided under the trademark MA(CNIFLOC 515C, a traiemark of the 0 00 o °a formaldehyde resins should have a weight average molecular weight 0 of at least 2,000 and be soluble in water at pH below Preferably, the molecular weight will be in the range of o o° 2,500-4,000.
0o 0 00 A suitable styrene-acrylate resin is provided under the trademark ESICRYL R-11, a trademark of the Emulsion System Company or OPACIFIER 11, a trademark of the Essential Chemical 0. Compny. Styrene-acrylate resins generally can be used.
However, the most preferred will have a molecular weight within the range of 50,000-100,000.
Generally, the styrene-acrylate polymer is prepared Sseparately and packaged separately from the melamine-formaldehyde polymer. The two are then chaiqej into the system. The styrene-acrylate can be used as purchased. Melamineeformaldohyde can also be used as purchased.
3 w- S-
L
Laboratory Test Laboratory tests were conducted using a clay/amine product which is a standard in the industry today, reoresenting over 60% of the U.S. detackifyinq market for high density paint systems.
Desired amounts of detackifiers were added to the water manually or using a chemical pump to monitor the chemical demand. These detackifiers were allowed to mix in the tank through water circulation for 5 minutes. The paint being tested was then sprayed into chamber at a rate of 2 ml/min through an air atomized spray gun located 12 inches above the center of I the scrubbing section. An exhaust fan pulling air from the lower section of the scrubbing chamber helped the air flow through the water and increased scrubbing efficiency. This exhaust fan also aided in eliminating paint mist during the test and made the whole unit operable in that atmosphere. The test paint was sprayed for 10 minutes and the paint kill then tested for \9,ckiness or stickiness. Tackiness or stickiness was determined by wetting the test runner’s hand by the water solution in the test tank and taking a sample of the floating paint sludge from the water tank and squeezing and rubbing it slightly between his fingers until a degree tackiness is determined. The test is somewhat subjective. However, that is the best method that is currently available.
In general, at the conclusion of a good paint kill, paint is continuously sprayed, and the paint sludge conditions tested every 10 minutes. At any given time, if any trace of tackiness of sludge is present, paint spray should be discontinued and the program re-examined. The amount of paint sprayed, the chemical dosage, and condition of sludge should be recorded.
4 1 ~CI Additional chemicals should be added and paint spray resumed. Repeat this process at least four times.
Let’s take a hypothetical example of the test in order to see how the product maintenance ratio is calculated: mis of mls of paint sprayed Chemicals added Comments 0 57 ml Start spraying (or 3,000 ppm) initial kill #8 120 19 Final kill #6 recharge chemicals 00 60 19 Recharge chemicals 0* 55 19 Recharge chemicals it 67 Finish sprayed In this case, the initial charge of chemicals is 19 mis or 1,000 ppm (based on 5 gallons of water) and the product maintenance ratio is 3:1 paint/product.
In the following tests, the maintenance ratio O t represents the ratio of paint to produce required to maintain acceptable levels of tackiness or stickiness for vr the paint kill.
00 4 t t Test 1 Paint: DuPont 706-AC 301 white base coat Wt. solids: 59% Spray Rate: 2.0 ml/min Water recirculation rate: 2 GPM Product use: polyamine and bentonite clay slurry at 1:3 ratio on active basis Initial Charge: 300 Dpm Maintenance Charqe: 3:1 paint:product Test 2 Paint: DuPont 706-AC 301 white base coat Wt- solids: 59% Spray Rate: 2.0 ml/min Water recirculation rate: 2 GPM Product use: melamine formaldehyde/styrene-acrylate at 2.4:1 ratio Initial Charge: 820 pom Maintenance Charge: 15:1 oaint:product Test 3 Paint: DuPont clear coat RK-3840 Wt. solids: 60.0% Spray Rate: 2.0 ml/min Water recirculation rate: 2 GPM Product use: melamine formaldehyde/styrene-acrylate at 4:1 ratio Initial Charge: 900 ppm Maintenance Charge: 10:1 paint:product -p Test 4 Paint: In Mont E12 CK002 Wt. solids: Spray Rate: 2.0 ml/min Water recirculation rate: 2 GPM Product use: melamine formaldehyde polymer/styreneacrylate at 3:1 ratio Initial Charge: 70 ppm Maintenance Charge: 35:1 paint:product 0 O Discussion of Test Results o o Generally, we have found that the laboratory test 0 0 Sresults have higher detackifier requirements than are actually needed in the field. A discrepancy occurs primarily lue to difference in spray rate vs. water flow rate under liboratory and 0 field conditions.
S9 In practice, the polymer works best when dosed in a 9 0 system having a pH within the range of 7.5 to Generally, the system should be dosed prior to the detackification process. Pre-dosing appears to allow the formation of floc and adequate dispersion of the detackifier throughout the system.
Preferably, floc within the raiqe of 0.1 toa- 1micron will be formed. Generaly floc witn thr range of 0.5-0.75 microns is found to be most desirable.
The detackifyina systems are generally water containing the detackifier compositions.
The d4otackifier of this invention is a floating/sinking depending on the ratio of the twr components, A/B.
The detackifier bonds with paint and removes the stickiness of the paint. Generally, when the invention is workinc. and is appropriately dosed there will be no stickiness to the feel and no paint adhering to any surfaces that com,2 in contact with water and filtration commonly used in oaint detackification removal systems.
~8

Claims (1)

1. A method for detackifying paint in a paint booth comprising steps of dosing a paint spray booth collection system with at least 25 ppm of a melamine-formaldehyde and styrene-acrylate mixture, said melamine-formaldehyde being in relation to said styrene-acrylate in a mole ratio falling in the range of 2:1 to 4:1. DATED this 17th day of October, 1989 NALCO CHEMICAL COMPANY Attorney: IAN T. ERNST Fellow Institute of Patent Attorneys of Australia of SHELSTON WATERS 4 It *i I I I ot It 1111 4 4 9 ~J ,;s It r t 5 r; 4, iii

AU16998/88A
1987-06-12
1988-06-02
Melamine-formaldehyde/styrene-acrylate paint detackification composition

Ceased

AU596934B2
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

US07/062,526

US4764561A
(en)

1987-06-12
1987-06-12
Melamine-formaldehyde/styrene-acrylate paint detackification composition

US062526

1987-06-12

Publications (2)

Publication Number
Publication Date

AU1699888A

AU1699888A
(en)

1988-12-15

AU596934B2
true

AU596934B2
(en)

1990-05-17

Family
ID=22043061
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU16998/88A
Ceased

AU596934B2
(en)

1987-06-12
1988-06-02
Melamine-formaldehyde/styrene-acrylate paint detackification composition

Country Status (8)

Country
Link

US
(2)

US4764561A
(en)

EP
(1)

EP0294810B1
(en)

JP
(1)

JPH0689277B2
(en)

AU
(1)

AU596934B2
(en)

DE
(2)

DE3889147T2
(en)

ES
(1)

ES2010967T3
(en)

NZ
(1)

NZ224900A
(en)

ZA
(1)

ZA884169B
(en)

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Assignee
Title

US5024768A
(en)

1988-02-29
1991-06-18
Betz Laboratories, Inc.
Organic polymer activator for detackification

DE3810166A1
(en)

1988-03-25
1989-10-05
Henkel Kgaa

USE OF A WAESSRENCE CONCENTRATE CONTAINING AN ETHYLENE ACRYLIC ACID COPOLYMERISATE, AND METHOD OF COAGULATING LACQUERS AND OTHER ORGANIC COATINGS

US5006261A
(en)

1988-12-21
1991-04-09
Nalco Chemical Company
Paint detackification using water-dispersible polymeric latexes

US4940491A
(en)

1989-02-21
1990-07-10
Nalco Chemical Company
Composition for the paint detackification for both waterborne and solvent enamels

US4888386A
(en)

1989-02-21
1989-12-19
Nalco Chemical Company
Composition for the paint detackification for both waterborne and solvent enamels

GB9113568D0
(en)

1991-06-24
1991-08-14
Brent Chemicals Int
Paint denaturant

US6472128B2
(en)

1996-04-30
2002-10-29
Shipley Company, L.L.C.
Antihalation compositions

US6773864B1
(en)

1991-11-15
2004-08-10
Shipley Company, L.L.C.
Antihalation compositions

US6165697A
(en)

1991-11-15
2000-12-26
Shipley Company, L.L.C.
Antihalation compositions

US6528235B2
(en)

1991-11-15
2003-03-04
Shipley Company, L.L.C.
Antihalation compositions

US5248440A
(en)

1992-01-30
1993-09-28
W. R. Grace & Co.-Conn.
Paint spray booth treatment of waterborne coatings

US7425296B2
(en)

2004-12-03
2008-09-16
Pressco Technology Inc.
Method and system for wavelength specific thermal irradiation and treatment

US10857722B2
(en)

2004-12-03
2020-12-08
Pressco Ip Llc
Method and system for laser-based, wavelength specific infrared irradiation treatment

US20090102083A1
(en)

2007-06-08
2009-04-23
Cochran Don W
Method and System for Wavelength Specific Thermal Irradiation and Treatment

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Publication number
Priority date
Publication date
Assignee
Title

AU1699788A
(en)

1987-06-12
1988-12-15

Nalco Chemical Company

Paint detackification

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(en)

1972-04-05
1975-08-26
Du Pont
Thermosetting acrylic enamel containing an acrylic polymer and butylated melamine formaldehyde resin

JPS4954447A
(en)

1972-09-26
1974-05-27

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1972-12-29
1976-05-25
E. I. Dupont De Nemours And Company
Aqueous thermosetting acrylic enamel for finishing flexible hydrocarbon rubber substrates

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NOVEL CATIONIC AMINOPLASTIC RESIN, PROCESS FOR OBTAINING SAME AND APPLICATION THEREOF IN WATER TREATMENT

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Atlantic Richfield Company
Paint detackification method

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Atlantic Richfield Company
Paint detackification method

1987

1987-06-12
US
US07/062,526
patent/US4764561A/en
not_active
Expired – Fee Related

1988

1988-01-21
US
US07/146,633
patent/US4800217A/en
not_active
Expired – Fee Related

1988-06-02
AU
AU16998/88A
patent/AU596934B2/en
not_active
Ceased

1988-06-03
NZ
NZ224900A
patent/NZ224900A/en
unknown

1988-06-09
EP
EP88109212A
patent/EP0294810B1/en
not_active
Expired – Lifetime

1988-06-09
DE
DE3889147T
patent/DE3889147T2/en
not_active
Expired – Fee Related

1988-06-09
ES
ES88109212T
patent/ES2010967T3/en
not_active
Expired – Lifetime

1988-06-09
DE
DE198888109212T
patent/DE294810T1/en
active
Pending

1988-06-10
JP
JP63141854A
patent/JPH0689277B2/en
not_active
Expired – Lifetime

1988-06-10
ZA
ZA884169A
patent/ZA884169B/en
unknown

Patent Citations (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AU1699788A
(en)

1987-06-12
1988-12-15
Nalco Chemical Company
Paint detackification

Also Published As

Publication number
Publication date

NZ224900A
(en)

1990-07-26

DE3889147T2
(en)

1994-10-27

EP0294810A3
(en)

1990-05-30

EP0294810B1
(en)

1994-04-20

AU1699888A
(en)

1988-12-15

DE3889147D1
(en)

1994-05-26

US4764561A
(en)

1988-08-16

ES2010967T3
(en)

1994-06-16

ZA884169B
(en)

1989-03-29

JPH0689277B2
(en)

1994-11-09

US4800217A
(en)

1989-01-24

EP0294810A2
(en)

1988-12-14

ES2010967A4
(en)

1989-12-16

JPS644674A
(en)

1989-01-09

DE294810T1
(en)

1989-12-28

Contact information