US4129448A
Expired / Lapsed
US
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Formaldehyde stabilized coating compositions
Assignee: Rohm and Haas Co
•
Filing: 1977-09-06
•
Granted: 1978-12-12
•
Expires: 1997-09-06
Abstract
Abstract Coating compositions which contain a mildew-controlling amount of an isothiazolone are stabilized against chemical decomposition of the isothiazolone by the addition of formaldehyde or a compound which releases formaldehyde under basic conditions.
Inventors
- 👤 Stanley A. Greenfield
- 👤 John A. Dupont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:34
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/14; A; A01; A01N; A01N43/00; A01N43/72; A01N43/80; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2525; Y10T442/2533
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
25 words
In a coating composition which comprises a film-forming material, carrier, and a 3-isothiazolone, the improvement wherein the composition further comprises a stabilizing amount of formaldehyde.
Claim 2
Dependent Claim
25 words
In a coating composition which comprises a film-forming material, carrier, and a 3-isothiazolone, the improvement wherein the composition further comprises a stabilizing amount of formaldehyde.
Claim 3
Dependent Claim
75 words
The coating composition of claim 1 wherein the isothiazolone has the formula ##STR11## wherein Y is a hydrogen atom, a (C 1 -C 18 )alkyl group, a (C 6 -C 10 )aryl group, or a (C 7 -C 10 ) aralkyl group; R is a hydrogen atom, a halogen atom, or a (C 1 -C 4 )alkyl group, and R' is a hydrogen atom, a halogen atom, or a (C 1 -C 4 )alkyl group.
Claim 4
Dependent Claim
10 words
The composition of claim 1 which additionally comprises a pigment.
Claim 5
Independent Claim
42 words
A method of stabilizing a coating composition which comprises a film-forming material, carrier, and a 3-isothiazolone against chemical decomposition of the isothiazolone which comprises incorporating into the composition a stabilizing amount of formaldehyde or a compound which releases formaldehyde under basic conditions.
Claim 6
Independent Claim
42 words
A method of stabilizing a coating composition which comprises a film-forming material, carrier, and a 3-isothiazolone against chemical decomposition of the isothiazolone which comprises incorporating into the composition a stabilizing amount of formaldehyde or a compound which releases formaldehyde under basic conditions.
Claim 7
Dependent Claim
73 words
The method of claim 4 wherein the 3-isothiazolone has the formula ##STR12## wherein Y is a hydrogen atom, a (C 1 -C 18 )alkyl group, a (C 6 -C 10 )aryl group, or a (C 7 -C 10 )aralkyl group; R is a hydrogen atom, a halogen atom, or a (C 1 -C 4 )alkyl group, and R' is a hydrogen atom, a halogen atom, or a (C 1 -C 4 )alkyl group.
Claim 8
Dependent Claim
17 words
An article of manufacture comprising a substrate having a cured coating of the composition of claim 1.
Claim 9
Dependent Claim
19 words
The composition of claim 2 wherein the carrier is water and the film-forming material is an acrylic emulsion polymer.
Claim 10
Dependent Claim
25 words
The composition of claim 7 wherein the composition is neutralized to a pH of about 6.0 to about 9.2 with ammonia or an organic amine.
Claim 11
Dependent Claim
55 words
The composition of claim 8 wherein the formaldehyde is present in an amount equivalent to about 0.5 to about 20 pounds of 37% aqueous formaldehyde per 100 gallons of the composition, and the ammonia or organic amine is present in an amount of about 0.25 to about 10 pounds per 100 gallons of the composition.
Claim 12
Dependent Claim
158 words
A coating composition which comprises a film-forming acrylic emulsion polymer, water as a carrier, an isothiazolone of the formula ##STR13## wherein Y is a hydrogen atom, a (C 1 -C 18 ) alkyl group, a (C 6 -C 10 )aryl group, or a (C 7 -C 10 )aralkyl group; R is a hydrogen atom, a halogen atom, or a (C 1 -C 4 ) alkyl group, and R' is a hydrogen atom, a halogen atom, or a (C 1 -C 4 )alkyl group, and formaldehyde in an amount equivalent to about 0.5 to about 20 pounds of 37% aqueous formaldehyde per 100 gallons of the composition, wherein the composition is neutralized to a pH of about 6.0 to about 9.2 with about 0.25 to about 10 pounds per 100 gallons of ammonia or an organic amine and wherein the isothiazolone is present in an amount of about 0.1 to about 20 pounds per 100 gallons of the composition.
Claim 13
Dependent Claim
158 words
A coating composition which comprises a film-forming acrylic emulsion polymer, water as a carrier, an isothiazolone of the formula ##STR13## wherein Y is a hydrogen atom, a (C 1 -C 18 ) alkyl group, a (C 6 -C 10 )aryl group, or a (C 7 -C 10 )aralkyl group; R is a hydrogen atom, a halogen atom, or a (C 1 -C 4 ) alkyl group, and R' is a hydrogen atom, a halogen atom, or a (C 1 -C 4 )alkyl group, and formaldehyde in an amount equivalent to about 0.5 to about 20 pounds of 37% aqueous formaldehyde per 100 gallons of the composition, wherein the composition is neutralized to a pH of about 6.0 to about 9.2 with about 0.25 to about 10 pounds per 100 gallons of ammonia or an organic amine and wherein the isothiazolone is present in an amount of about 0.1 to about 20 pounds per 100 gallons of the composition.
Claim 14
Dependent Claim
31 words
The composition of claim 10 wherein Y is a hydrogen atom or an unsubstituted (C 1 -C 18 )alkyl group, R is a hydrogen atom, and R' is a hydrogen atom.
Claim 15
Dependent Claim
11 words
The composition of claim 11 wherein Y is a n-octyl group.
Claim 16
Dependent Claim
30 words
The composition of claim 10 wherein Y is a hydrogen atom or a (C 1 -C 18 )alkyl group, R is a hydrogen atom, and R' is a halogen atom.
Claim 17
Dependent Claim
26 words
The composition of claim 10 wherein Y is a 4-chlorobenzyl group, R is a hydrogen atom and R' is a hydrogen atom or a halogen atom.
Claim 18
Dependent Claim
23 words
The compoosition of claim 10 wherein the composition is neutralized to a pH of about 8.6 to about 9.1 with ammonia or dimethylaminoethanol.
Claim 19
Dependent Claim
38 words
The method of claim 5 wherein the carrier is water, the film-forming material is an acrylic emulsion polymer, and the composition is neutralized to a pH of about 6.0 to about 9.2 with ammonia or an organic amine.
Claim 20
Dependent Claim
60 words
The method of claim 16 wherein the formaldehyde or compound which releases formaldehyde is incorporated in an amount equivalent to about 0.5 to about 20 pounds of 37% aqueous formaldehyde per 100 gallons of the composition and wherein the composition is neutralized with about 0.25 to about 10 pounds of ammonia or organic amine per 100 gallons of the composition.
Claim 21
Dependent Claim
24 words
The method of claim 16 wherein the coating composition is neutralized to a pH of about 8.6 to about 9.1 with ammonia or dimethylaminoethanol.
Claim 22
Dependent Claim
16 words
The method of claim 4 which comprises incorporating into the composition a stabilizing amount of formaldehyde.
Claim 23
Dependent Claim
19 words
The method of claim 4 which comprises incorporating into the composition a compound which releases formaldehyde under basic conditions.
Claim 24
Dependent Claim
11 words
The method of claim 20 wherein the compound is 1-(3-chloroalkyl)-3,5,7-triaza-1-azoniaadamantane chloride.
References Cited (Backward Citations)
US3523121A
Cited
US3761488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |