US4753659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of cassia tora polysaccarides and their use
Assignee: Noveon IP Holdings Corp
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Filing: 1986-08-11
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Granted: 1988-06-28
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Expires: 2006-08-11
Abstract
Abstract The invention relates to new alkyl ethers and phosphoric acid esters of Cassia tora polygalactomannans and their use, alone or in combination with other thickening agents, as thickening agents.
Inventors
- 👤 Friedrich Bayerlein
- 👤 Nikolaos Keramaris
- 👤 Manfred Kuhn
- 👤 Ulrich Beck
- 👤 Nikolaus Kottmair
- 👤 Michel Maton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:35
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/006; C08B37/0087; C08B37/0093; C08B37/0096; C08L; C08L5/00; C08L5/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
45 words
An ester or ether derivative of Cassia tora polygalactomannans selected from the group consisting of phosphoric acid esters and substituted C 1-4 -alkyl ethers, wherein said substituents are selected from the group consisting of hydroxy, carboxy, di-C 1-4 -alkylammonium, tri-C 1-4 -alkylammonium and mixtures thereof.
Claim 2
Dependent Claim
45 words
An ester or ether derivative of Cassia tora polygalactomannans selected from the group consisting of phosphoric acid esters and substituted C 1-4 -alkyl ethers, wherein said substituents are selected from the group consisting of hydroxy, carboxy, di-C 1-4 -alkylammonium, tri-C 1-4 -alkylammonium and mixtures thereof.
Claim 3
Dependent Claim
11 words
The derivative of claim 1 wherein said ether is hydroxypropyl ether.
Claim 4
Dependent Claim
16 words
The substituted C 1-4 alkylether derivative of claim 1 wherein the degree of substitution is 0.03-3.0.
Claim 5
Dependent Claim
12 words
The derivative of claim 3 wherein the degree of substitution is 0.1-0.5.
Claim 6
Dependent Claim
11 words
The derivative of claim 1 having a viscosity of 100-40,000 mPas.
Claim 7
Dependent Claim
9 words
The derivative of claim 1 which has been depolymerized.
Claim 8
Dependent Claim
26 words
In a method of textile manufacture comprising the use of a textile auxiliary, the improvement comprising using the derivative of claim 1 as said textile auxiliary.
Claim 9
Dependent Claim
24 words
A method for thickening a solution comprising adding an effective amount of the derivative of claim 1 to the solution as a thickening agent.
Claim 10
Dependent Claim
32 words
The method of claim 8, wherein said solution is selected from the group consisting of a printing paste for textile printing and a dye solution for the continuous dyeing of textile substrates.
Claim 11
Dependent Claim
40 words
In the method of claim 7, wherein said textile auxiliary further comprises a polysaccharide derivative selected from the group consisting of xanthan, carrageenan, polymers of acrylic acid or salts thereof, copolymers of acrylic acid or salts thereof and mixtures thereof.
Claim 12
Dependent Claim
48 words
The method of claim 8, wherein an effective amount of a polysaccharide derivative selected from the group consisting of xanthan, carrageenan, polymers of acrylic acid or salts thereof, copolymers of acrylic acid or salts thereof and mixtures thereof is further added to the solution as a thickening agent.
Claim 13
Dependent Claim
48 words
The method of claim 9, wherein an effective amount of a polysaccharide derivative selected from the group consisting of xanthan, carrageenan, polymers of acrylic acid or salts thereof, copolymers of acrylic acid or salts thereof and mixtures thereof is further added to said solution as a thickening agent.
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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) | 1991-06-28 | 1991-12-28 | 1992-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-28 | 1995-12-28 | 1996-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-28 | 1999-12-28 | 2000-06-28 | $7700.00 | Window Closed / Lapsed |