US4415701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble thickeners
Assignee: Syensqo USA LLC
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Filing: 1982-10-12
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Granted: 1983-11-15
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Expires: 2002-10-12
Abstract
Abstract Disclosed in this invention are copolymers containing about 0.5% to about 20%, by weight, of a C 10 -C 36 monoepoxide and about 99.5% to about 80%, by weight, of a 1,3 dioxolane. These copolymers are useful in increasing the viscosity of aqueous systems employed in various end uses, such as coatings and hydraulic fluids.
Inventors
- 👤 Barry J. Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:09
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C08G4/00; C09; C09D; C09D7/00; C09D7/40; C09D7/43; C10; C10M; C10M145/00; C10M145/18; C10M145/24; C10M145/26; C10M145/34; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/107; C10N; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
37 words
A water soluble thickening compound comprising a copolymer prepared by copolymerizing about 0.5% to about 20%, by weight, of a C 10 -C 36 monoepoxide with about 99.5% to about 80%, by weight, of a 1,3 dioxolane.
Claim 2
Dependent Claim
37 words
A water soluble thickening compound comprising a copolymer prepared by copolymerizing about 0.5% to about 20%, by weight, of a C 10 -C 36 monoepoxide with about 99.5% to about 80%, by weight, of a 1,3 dioxolane.
Claim 3
Dependent Claim
42 words
The compound of claim 1 wherein the monoepoxide is selected from the group consisting of: ##STR3## wherein R' is C 7 -C 33 and the 1,3 dioxolane is represented by the general formula ##STR4## wherein R is C 1 -C 3 alkyl.
Claim 4
Dependent Claim
24 words
The compound of claim 1 wherein the dioxolane is selected from 1,3 dioxolane, 2 methyl 1,3 dioxolane, 4 methyl 1,3 dioxolane and mixtures thereof.
Claim 5
Dependent Claim
17 words
The compound of claim 1 wherein the monoepoxide is a C 10 -C 36 n-alkane terminal epoxide.
Claim 6
Dependent Claim
31 words
The compound of claim 1 wherein the dioxolane is present at about the 99% to 90% level, and the monoepoxide is present at about the 1% to 10%, by weight, level.
Claim 7
Dependent Claim
31 words
The compound of claim 1 wherein up to about 25%, based upon the total monoepoxide weight, of a monoepoxide containing up to about 10 carbon atoms is added as a comonomer.
Claim 8
Dependent Claim
24 words
The compound of claim 1 wherein up to about 10%, based on the total monoepoxide weight, of a diepoxide is added as a comonomer.
Claim 9
Dependent Claim
24 words
The compound of claim 1 wherein up to about 10%, based on the total 1,3 dioxolane weight, of trioxane is added as a comonomer.
Claim 10
Dependent Claim
39 words
A water soluble thickening compound comprising a copolymer prepared by copolymerizing about 0.5 to about 20 percent, by weight, of a C 12 -C 25 n-alkane monoepoxide and about 99.5 to about 80 percent, by weight, of 1,3 dioxolane.
Claim 11
Dependent Claim
39 words
A water soluble thickening compound comprising a copolymer prepared by copolymerizing about 0.5 to about 20 percent, by weight, of a C 12 -C 25 n-alkane monoepoxide and about 99.5 to about 80 percent, by weight, of 1,3 dioxolane.
Claim 12
Dependent Claim
28 words
A process for increasing the viscosity of an aqueous-based system, which comprises adding to the system at least about 2%, by weight, of the compound of claim 1.
Claim 13
Dependent Claim
28 words
A process for increasing the viscosity of an aqueous-based system, which comprises adding to the system at least about 2%, by weight, of the compound of claim 2.
Claim 14
Dependent Claim
28 words
A process for increasing the viscosity of an aqueous-based system which comprises adding to the system at least about 2%, by weight, of the compound of claim 9.
Claim 15
Dependent Claim
28 words
A process for increasing the viscosity of an aqueous-based system, which comprises adding to the system at least about 3%, by weight, of the compound of claim 1.
Claim 16
Dependent Claim
28 words
A process for increasing the viscosity of an aqueous-based system, which comprises adding to the system at least about 3%, by weight, of the compound of claim 2.
Claim 17
Dependent Claim
28 words
A process for increasing the viscosity of an aqueous-based system which comprises adding to the system at least about 3%, by weight, of the compound of claim 9.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |