US3674896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding with ammonium polymer salts
Assignee: Union Carbide Corp
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Filing: 1970-06-03
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Granted: 1972-07-04
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Expires: 1990-06-03
Abstract
Abstract Water-soluble ammonium salts of ethylene-acrylic acid copolymers are used to coat or bond various substrates with water insoluble ethylene-acrylic acid copolymers by first applying the salt alone or with polyvinyl alcohol to the substrate from aqueous solutions or dispersions and then drying the treated substrate. During the drying step ammonia is evolved leaving the ethylene-acrylic acid copolymer on the substrate. This invention has been used to coat articles with a temporary coating, and to prepare floor polishes, paper coatings, non-woven fabrics and water-proof wood.
Inventors
- 👤 Chester L Purcell
- 👤 Walter H Smarook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:38
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/24; C; C08; C08F; C08F8/00; C08F8/44; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C09J133/00; C09J133/02; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/41; D21H17/42; D21H17/43; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/58; D21H19/60; C08L; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
21 words
about five to 80 parts by weight of a polyvinyl alcohol having a degree of hydrolysis of more than 98 percent.
Claim 2
Dependent Claim
18 words
Composition claimed in claim 1 wherein the ethylene-acrylic acid copolymer contains about 13-22 percent acrylic acid copolymerized therein.
Claim 3
Dependent Claim
23 words
about five to about 80 parts by weight of a polyvinyl alcohol having a degree of hydrolysis of more than 98 per cent.
Claim 4
Dependent Claim
24 words
Composition claimed in claim 2 wherein the ratio of ethylene-acrylic acid copolymer to polyvinyl alcohol is in the range of about 60:40 to 50:50.
Claim 5
Dependent Claim
19 words
Composition claimed in claim 3 wherein the degree of hydrolysis of the polyvinyl alcohol is greater than 99 percent.
Claim 6
Dependent Claim
19 words
Composition claimed in claim 2 wherein the degree of hydrolysis of the polyvinyl alcohol is greater than 99.8 percent.
Claim 7
Dependent Claim
9 words
An article comprising paper coated with a composition comprising:
Claim 8
Dependent Claim
19 words
Article claims in claim 6 wherein the acrylic acid copolymer contains about 13-22 per cent acrylic acid copolymerized therein.
Claim 9
Dependent Claim
25 words
The article claimed in claim 6 wherein the ratio of ethylene-acrylic acid copolymer to polyvinyl alcohol is in the range of about 60:40 to 50:50.
Claim 10
Dependent Claim
19 words
Article claimed in claim 6 wherein the degree of hydrolysis of the polyvinyl alcohol is greater than 99 percent.
Claim 11
Dependent Claim
20 words
Article claimed in claim 6 wherein the degree of hydrolysis of the polyvinyl alcohol is greater than 99.8 per cent.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |