US3882057A
Expired / Lapsed
US
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Adhesive composition containing as a binder a graft polymer on a water-soluble cellulose ether of an unsaturated carboxylic acid, alkyl acrylate and vinyl acetate; and process for preparing the same
Assignee: Mo och Domsjo AB
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Filing: 1973-08-29
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Granted: 1975-05-06
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Expires: 1993-08-29
Abstract
Abstract WHERE R'' and R'''', independently of each other, are hydrogen or an alkyl group having 1-2 carbon atoms B. AN ALKYL ACRYLATE HAVING 1-8 CARBON ATOMS IN THE ALKYL PORTION, AND C. VINYL ACETATE. A process for preparing this graft polymer by reaction of these reagents with a water-soluble cellulose ether is also provided. An adhesive composition, is provided, containing as a binder a graft polymer on a water-soluble cellulose ether of A. AN UNSATURATED CARBOXYLIC ACID OF THE FORMULA
Inventors
- 👤 Sven Lindenfors
- 👤 Nils Johan Lundberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:20
CPC Classifications
C; C09; C09J; C09J151/00; C09J151/02; C08; C08F; C08F251/00; C08F251/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
19 words
AN ADESIVE COMPOSITION COMPRISING AS A BINDER A GRAFT POLYMER OF A. AN UNSATURATED CARBOXYLIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
19 words
AN ADESIVE COMPOSITION COMPRISING AS A BINDER A GRAFT POLYMER OF A. AN UNSATURATED CARBOXYLIC ACID HAVING THE FORMULA
Claim 3
Dependent Claim
37 words
An adhesive composition According to claim 1 in which the amounts of unsaturated carboxylic acid, alkyl acrylate and vinyl acetate are each within the range from about 0.4 to about 3 parts per part of cellulose ether.
Claim 4
Dependent Claim
18 words
An adhesive composition according to claim 1 in which the water-soluble cellulose ether is a nonionic cellulose ether.
Claim 5
Dependent Claim
26 words
An adhesive composition according to claim 3 in which the nonionic cellulose ether is selected from the group consisting of ethyl hydroxyethyl cellulose and hydroxyethyl cellulose.
Claim 6
Dependent Claim
18 words
An adhesive composition according to claim 1 in which the water-soluble cellulose ether is an anionic cellulose ether.
Claim 7
Dependent Claim
16 words
An adhesive composition according to claim 5 in which the anionic cellulose either is carboxymethyl cellulose.
Claim 8
Dependent Claim
21 words
An adhesive composition according to claim 1 comprising in addition a filler, a pH regulator system, a buffer and an emulsifier.
Claim 9
Independent Claim
62 words
A method of producing a binder for use in an adhesive composition which comprises activating a water-soluble cellulose ether by mixing the cellulose ether with a redox initiator system, and causing the activated cellulose ether to react with a. an amount within the range from 0.2 to 5 parts per part of cellulose ether of an unsaturated carboxylic acid having the formula
Claim 10
Independent Claim
62 words
A method of producing a binder for use in an adhesive composition which comprises activating a water-soluble cellulose ether by mixing the cellulose ether with a redox initiator system, and causing the activated cellulose ether to react with a. an amount within the range from 0.2 to 5 parts per part of cellulose ether of an unsaturated carboxylic acid having the formula
Claim 11
Dependent Claim
16 words
A method according to claim 8, characterized in that the redox initiator comprises ammonium persulphate/sodium pyrosulphite.
Claim 12
Dependent Claim
73 words
An adhesive composition according to claim 1 comprising, in addition to the binder, an amount within the range from about 5 to about 50% by weight of the binder of adhesive composition ingredients selected from the group consisting of fillers, pH regulating agents, emulsifiers, buffers, and additives for improving freeze-thaw stability and stability upon storage; and an amount of water within the range from about 50 to about 90% by weight of composition.
Claim 13
Dependent Claim
29 words
An adhesive composition according to claim 10 comprising cellulose powder as the filler; sodium bicarbonate as the pH regulating agent; and sodium acetate and acetic acid as the buffer.
References Cited (Backward Citations)
US3491039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |