Patent US3692878A successfully refreshed from Google Patents.
US3692878A
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Novel interpolymer blends
Assignee: DAVID R CAHILL
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Filing: 1971-04-21
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Granted: 1972-09-19
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Expires: 1991-04-21
Abstract
Abstract Disclosed herein are polymer blends comprising a first interpolymer of a vinyl alcohol ester and at least one ethylenically unsaturated acid ester and a second interpolymer comprising a vinyl aromatic compound, at least one ethylenically unsaturated acid ester and at least one compound containing one or more acid groups. These blends are particularly useful as binders and adhesives.
Inventors
- 👤 Robert B Blance
- 👤 David R Cahill
- 👤 Peter Nachtel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:11
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0532; G03G5/0546; C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/14; C08L31/00; C08L31/02; C08L31/04; C08L33/00; C08L33/04; C08L33/06; C08L33/08; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/08; C09J; C09J125/00; C09J125/02; C09J125/04; C09J125/08; C09J125/14; C09J133/00; C09J133/04; C09J133/06; C09J133/08; G03G5/0535; G03G5/0542; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
8 words
at least one ester of acrylic acid and
Claim 2
Dependent Claim
50 words
The composition of claim 1 wherein the first interpolymer comprises an interpolymerization product of: A. at least one vinyl alcohol ester, B. at least one ester of acrylic acid containing at least seven carbon atoms and C. at least one ester of acrylic acid containing four to six carbon atoms.
Claim 3
Dependent Claim
11 words
The composition of claim 1 dissolved in a compatible organic solvent.
Claim 4
Dependent Claim
48 words
0.5 to 5.0 percent by weight, based upon the total weight of the second interpolymer of at least one ethylenically unsaturated compound containing at least one acid group; wherein the weight ratio of the first interpolymer to the second interpolymer is in the range from 9:1 to 1:9.
Claim 5
Dependent Claim
20 words
The composition of claim 3 having dispersed therein at least one pigment having adhesive affinity for the interpolymer blend thereof.
References Cited (Backward Citations)
US2934510A
Cited
US3365410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |