Patent US3843576A successfully refreshed from Google Patents.
US3843576A
Expired / Lapsed
US
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Aqueous coating compositions of ethylene/acrylic acid copolymer and phenolic resin
Assignee: United States Steel Corp
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Filing: 1973-12-28
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Granted: 1974-10-22
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Expires: 1993-12-28
Abstract
Abstract Aqueous dispersions in which ethylene-carboxylic acid copolymers and a low molecular weight phenolic resin are combined to produce a material useful as an adhesive, insulator, primer or coating. Additives enhancing the properties of the composition are also disclosed.
Inventors
- 👤 R Parkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:01
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C09J123/0846; C09J123/0869; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L2666/00; C08L2666/02; C08L2666/14; C08L95/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A COMPOSITION USEFUL AS A COATING OR ADHESIVE CONSISTING ESSENTIALLY OF AN AQUEOUS DISPERSION OF: A. FROM ABOUT 25 TO ABOUT 95 WEIGHT PERCENT OF RESIN SOLIDS OF COPOLYMER OF ETHYLENE AND ACRYLIC ACID, WHEREIN THE ACRYLIC ACID CONSTITUTES ABOUT 18% OF 24% OF THE COPOLYMER, SAID COPOLYMER BEING DISSOLVED IN AQUEOUS AMMONIUM HYDRXIDE TO FORM AN AMMONIUM SALT OR IONOMER SOLUTION OR DISPERSION. B. FROM ABOUT 5 TO ABOUT 75 WEIGHT PERCENT OF RESIN SOLIDS OF A WATER DSPERSIBLE HEAT REACTABLE, RESOL, A-STAGE TYPE PHENOLIC RESIN, ESSENTIALLY FREE OF UNREACTED PHENOL AND CONTAINING A SUBSTANITAL AMOUNT OF TRIMETHYLOLPHENOL.
Claim 2
Dependent Claim
99 words
A COMPOSITION USEFUL AS A COATING OR ADHESIVE CONSISTING ESSENTIALLY OF AN AQUEOUS DISPERSION OF: A. FROM ABOUT 25 TO ABOUT 95 WEIGHT PERCENT OF RESIN SOLIDS OF COPOLYMER OF ETHYLENE AND ACRYLIC ACID, WHEREIN THE ACRYLIC ACID CONSTITUTES ABOUT 18% OF 24% OF THE COPOLYMER, SAID COPOLYMER BEING DISSOLVED IN AQUEOUS AMMONIUM HYDRXIDE TO FORM AN AMMONIUM SALT OR IONOMER SOLUTION OR DISPERSION. B. FROM ABOUT 5 TO ABOUT 75 WEIGHT PERCENT OF RESIN SOLIDS OF A WATER DSPERSIBLE HEAT REACTABLE, RESOL, A-STAGE TYPE PHENOLIC RESIN, ESSENTIALLY FREE OF UNREACTED PHENOL AND CONTAINING A SUBSTANITAL AMOUNT OF TRIMETHYLOLPHENOL.
Claim 3
Dependent Claim
31 words
A composition as in claim 1 including an ethylene-methacrylic acid ionomer, said ionomer containing at least 75 percent ethylene and constituting not more than 60 percent of the total resin solids.
Claim 4
Dependent Claim
34 words
A composition as in claim 1 including an ethylene-vinylacetate copolymer or ethylene-vinylacetate-ethylenically unsaturated carboxylic acid terpolymer containing at least 20 percent ethylene and constituting not more than 75 percent of the total resin solids.
Claim 5
Dependent Claim
114 words
A composition for the application as coatings or adhesives consisting of an aqueous dispersion of: a. from about 25 to about 95 weight percent of resin solids of a copolymer of ethylene and an acid selected from the group comprising acrylic and methacrylic acids, wherein the acid constitutes about 18 to 24 percent of the copolymer; said copolymer being dissolved in aqueous solution of a water soluble volatile alkali to form an alkali salt or ionomer solution or dispersion; b. from about 5 to about 75 weight percent of resin solids of a water dispersible, heat reactable, resol, A-stage type phenolic resin, essentially free of unreacted phenol and containing a substantial amount of trimethylolphenol.
Claim 6
Dependent Claim
114 words
A composition for the application as coatings or adhesives consisting of an aqueous dispersion of: a. from about 25 to about 95 weight percent of resin solids of a copolymer of ethylene and an acid selected from the group comprising acrylic and methacrylic acids, wherein the acid constitutes about 18 to 24 percent of the copolymer; said copolymer being dissolved in aqueous solution of a water soluble volatile alkali to form an alkali salt or ionomer solution or dispersion; b. from about 5 to about 75 weight percent of resin solids of a water dispersible, heat reactable, resol, A-stage type phenolic resin, essentially free of unreacted phenol and containing a substantial amount of trimethylolphenol.
Claim 7
Dependent Claim
31 words
A composition as in claIm 4 including an ethylene-methacrylic acid ionomer, said ionomer containing at least 75 percent ethylene and constituting not more than 60 percent of the total resin solids.
Claim 8
Dependent Claim
34 words
A composition as in claim 4 including an ethylene-vinylacetate copolymer or ethylene-vinylacetate-ethylenically unsaturated carboxylic acid terpolymer containing at least 20 percent ethylene and constituting not more than 75 percent of the total resin solids.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |