Patent US4038232A successfully refreshed from Google Patents.
US4038232A
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US
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Electrodepositable compositions containing sulfonium resins and capped polyisocyanates
Assignee: PPG Industries Inc
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Filing: 1975-07-08
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Granted: 1977-07-26
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Expires: 1995-07-08
Abstract
Abstract It has been found that aqueous coating compositions comprising a blocked organic polyisocyanate and quaternary sulfonium group-containing resin containing isocyanate reactive groups can be electrodeposited. These compositions deposit on the cathode to provide coatings having excellent properties including solvent resistance, salt spray and detergent resistance, hardness, flexibility, and most importantly a resistance to yellowing, especially when used to formulate white or pastel coatings.
Inventors
- 👤 Joseph F. Bosso
- 👤 Marco Wismer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:24
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0809; C08F; C08F8/00; C08F8/30; C08G18/28; C08G18/40; C08G18/58; C08G18/585; C08G18/62; C08G18/6216; C08G18/622; C08G18/6237; C08G18/64; C08G18/6407; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/4465; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
37 words
An aqueous based resinous dispersion suitable for use as a coating composition comprising as the resinous phase: A. a quaternary sulfonium salt group solubilized synthetic organic resin containing free hydroxyl groups, said organic resin produced by reacting:
Claim 2
Dependent Claim
37 words
An aqueous based resinous dispersion suitable for use as a coating composition comprising as the resinous phase: A. a quaternary sulfonium salt group solubilized synthetic organic resin containing free hydroxyl groups, said organic resin produced by reacting:
Claim 3
Dependent Claim
78 words
an epoxy-containing organic material having a 1,2-epoxy equivalency of greater than 1, and 2. a sulfide-acid mixture, said sulfide-acid mixture being used in an amount to provide sufficient quaternary sulfonium groups to solubilize said resin; said sulfide being selected from the group consisting of aliphatic, mixed aliphatic-aromatic, aralkyl and cyclic sulfides; and B. a capped, organic polyisocyanate stable at ordinary room temperature in the presence of said resin (A) and reactive with said resin (A) at elevated temperatures.
Claim 4
Dependent Claim
78 words
an epoxy-containing organic material having a 1,2-epoxy equivalency of greater than 1, and 2. a sulfide-acid mixture, said sulfide-acid mixture being used in an amount to provide sufficient quaternary sulfonium groups to solubilize said resin; said sulfide being selected from the group consisting of aliphatic, mixed aliphatic-aromatic, aralkyl and cyclic sulfides; and B. a capped, organic polyisocyanate stable at ordinary room temperature in the presence of said resin (A) and reactive with said resin (A) at elevated temperatures.
Claim 5
Dependent Claim
31 words
The aqueous based resinous dispersion as in claim 1 wherein (A) and (B) are present in proportions to provide about 0.5 to about 2.0 latent urethane groups per isocyanate reactive group.
Claim 6
Dependent Claim
17 words
The aqueous based resinous dispersion as in claim 1 wherein the isocyanate reactive groups comprise hydroxyl groups.
Claim 7
Dependent Claim
30 words
The aqueous based resinous dispersion as in claim 3 wherein (A) and (B) are present in proportions to provide about 0.5 to about 2.0 latent urethane groups per hydroxyl group.
Claim 8
Dependent Claim
35 words
The aqueous based resinous dispersion as in claim 1 wherein the resin (A) has a backbone derived from the interpolymerization of an olefinically unsaturated glycidyl compound and at least one other copolymerizable olefinically unsaturated monomer.
Claim 9
Dependent Claim
44 words
The aqueous based resinous dispersion as in claim 5 wherein the resin (A) has a backbone derived from the interpolymerization of an olefinically unsaturated glycidyl compound, a hydroxyl alkyl ester of acrylic or methacrylic acid, and at least one other copolymerizable olefinically unsaturated monomer.
Claim 10
Dependent Claim
30 words
The aqueous based resinous dispersion as in claim 6 wherein (A) and (B) are present in proportions to provide about 0.5 to about 2.0 latent urethane groups per hydroxyl group.
Claim 11
Dependent Claim
17 words
The aqueous based resinous dispersion as in claim 1 wherein the resin (A) contains free epoxy groups.
Claim 12
Dependent Claim
31 words
The aqueous based resinous dispersion as in claim 8 wherein (A) and (B) are present in proportions to provide about 0.5 to about 2.0 latent urethane groups per isocyanate reactive group.
Claim 13
Dependent Claim
17 words
The aqueous based resinous dispersion as in claim 8 wherein the isocyanate reactive groups comprise hydroxyl groups.
Claim 14
Dependent Claim
30 words
The aqueous based resinous dispersion as in claim 10 wherein (A) and (B) are present in proportions to provide about 0.5 to about 2.0 latent urethane groups per hydroxyl group.
Claim 15
Dependent Claim
35 words
The aqueous based resinous dispersion as in claim 8 wherein the resin (A) has a backbone derived from the interpolymerization of an olefinically unsaturated glycidyl compound and at least one other copolymerizable olefinically unsaturated monomer.
Claim 16
Dependent Claim
44 words
The aqueous based resinous dispersion as in claim 12 wherein the resin (A) has a backbone derived from the interpolymerization of an olefinically unsaturated glycidyl compound, a hydroxyl alkyl ester of acrylic or methacrylic acid, and at least one other copolymerizable olefinically unsaturated monomer.
Claim 17
Dependent Claim
30 words
The aqueous based resinous dispersion as in claim 13 wherein (A) and (B) are present in proportions to provide about 0.5 to about 2.0 latent urethane groups per hydroxyl group.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |