US4136078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising a plasticizer and an n-sulfohydrocarbon-substituted acrylamide polymer
Assignee: Lubrizol Corp
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Filing: 1974-06-03
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Granted: 1979-01-23
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Expires: 1994-06-03
Abstract
Abstract Compositions comprising a plasticizer, preferably a polyhydroxy compound, and an N-sulfohydrocarbon-substituted acrylamide polymer, preferably a homopolymer of 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, are useful as water-activated hot melt adhesives.
Inventors
- 👤 Roger H. Doggett
- 👤 Henry L. Buccigross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
C; C08; C08F; C08F28/00; C08K; C08K5/00; C08K5/04; C08K5/05; C09; C09J; C09J133/00; C09J133/24; C09J133/26; C08L; C08L2666/00; C08L2666/28; C08L2666/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
An adhesive composition comprising glycerol, sorbitol or polyethylene glycol as plasticizer and at least one homopolymer containing units of the formula ##STR5## wherein each of R 1 and R 3 is hydrogen or methyl and M is hydrogen or one equivalent of a cation; said plasticizer comprising about 25-50% by weight of said composition.
Claim 2
Dependent Claim
54 words
An adhesive composition comprising glycerol, sorbitol or polyethylene glycol as plasticizer and at least one homopolymer containing units of the formula ##STR5## wherein each of R 1 and R 3 is hydrogen or methyl and M is hydrogen or one equivalent of a cation; said plasticizer comprising about 25-50% by weight of said composition.
Claim 3
Dependent Claim
13 words
A composition according to claim 1 wherein M is hydrogen or alkali metal.
Claim 4
Dependent Claim
16 words
A composition according to claim 2 wherein R 1 is hydrogen and R 3 is methyl.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |