US4088593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion-exchanging aluminum silicate with hydrophilic surfaces
Assignee: Henkel AG and Co KGaA
•
Filing: 1977-03-30
•
Granted: 1978-05-09
•
Expires: 1997-03-30
Abstract
Abstract There are provided alkali aluminum silicates having a hydrophilic surface. They are prepared by mixing a crystalline, ion-exchanging alkali aluminum silicate with a hydrophilic material, preferably ortho-phosphoric acid or an alkali ortho phosphate.
Inventors
- 👤 Wolfgang Roebke
- 👤 Dieter Kneitel
- 👤 Erfried Parr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:34
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2815
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
114 words
In a washing, rinsing or cleansing agent containing an alkali aluminum silicate and a detergent, the improvement comprising employing as said silicate the hydrophilic alkali aluminum silicate prepared by the process comprising mixing a crystalline ion exchanging alkali metal aluminum silicate with a hydrophilic material which is ortho phosphoric acid, an alkali metal ortho phosphate, pentasodium tripolyphosphate, tartaric acid, an alkali metal tartrate or pentaerythritol in the presence of water, said hydrophilic material being employed in an amount sufficient to impart hydrophilicity to the alkali metal aluminum silicate but not over 30% of the weight of the silicate, drying and subsequently grinding the treated silicate to a particle size of not over 100 microns.
Claim 2
Dependent Claim
114 words
In a washing, rinsing or cleansing agent containing an alkali aluminum silicate and a detergent, the improvement comprising employing as said silicate the hydrophilic alkali aluminum silicate prepared by the process comprising mixing a crystalline ion exchanging alkali metal aluminum silicate with a hydrophilic material which is ortho phosphoric acid, an alkali metal ortho phosphate, pentasodium tripolyphosphate, tartaric acid, an alkali metal tartrate or pentaerythritol in the presence of water, said hydrophilic material being employed in an amount sufficient to impart hydrophilicity to the alkali metal aluminum silicate but not over 30% of the weight of the silicate, drying and subsequently grinding the treated silicate to a particle size of not over 100 microns.
Claim 3
Dependent Claim
25 words
A washing, rinsing or cleansing agent according to claim 1 wherein the hydrophilic material is an ortho phosphoric acid or an alkali metal ortho phosphate.
Claim 4
Dependent Claim
17 words
A washing, rinsing or cleansing agent according to claim 1 wherein the hydrophilic material is pentasodium tripolyphosphate.
Claim 5
Dependent Claim
22 words
A washing, rinsing or cleansing agent according to claim 1 wherein the hydrophilic material is tartaric acid or an alkali metal tartrate.
Claim 6
Dependent Claim
16 words
A washing, rinsing or cleansing agent according to claim 1 wherein the hydrophilic material is pentaerythritol.
Claim 7
Dependent Claim
115 words
In a washing, rinsing or cleansing agent, containing an alkali aluminum silicate and a detergent, the improvement comprising employing as said silicate the hydrophilic alkali aluminum silicate prepared by the process consisting of mixing a crystalline ion exchanging alkali metal aluminum silicate with a hydrophilic material which is ortho phosphoric acid, an alkali metal ortho phosphate, pentasodium tripolyphosphate, tartaric acid, an alkali metal tartrate or pentaerythritol in the presence of water, said hydrophilic material being employed in an amount sufficient to impart hydrophilicity to the alkali metal aluminum silicate but not over 30% of the weight of the silicate, drying and subsequently grinding the treated silicate to a particle size of not over 100 microns.
Claim 8
Dependent Claim
115 words
In a washing, rinsing or cleansing agent, containing an alkali aluminum silicate and a detergent, the improvement comprising employing as said silicate the hydrophilic alkali aluminum silicate prepared by the process consisting of mixing a crystalline ion exchanging alkali metal aluminum silicate with a hydrophilic material which is ortho phosphoric acid, an alkali metal ortho phosphate, pentasodium tripolyphosphate, tartaric acid, an alkali metal tartrate or pentaerythritol in the presence of water, said hydrophilic material being employed in an amount sufficient to impart hydrophilicity to the alkali metal aluminum silicate but not over 30% of the weight of the silicate, drying and subsequently grinding the treated silicate to a particle size of not over 100 microns.
Claim 9
Dependent Claim
25 words
A washing, rinsing or cleansing agent according to claim 6 wherein the hydrophilic material is an ortho phosphoric acid or an alkali metal ortho phosphate.
Claim 10
Dependent Claim
17 words
A washing, rinsing or cleansing agent according to claim 6 wherein the hydrophilic material is pentasodium tripolyphosphate.
Claim 11
Dependent Claim
22 words
A washing, rinsing or cleansing agent according to claim 6 wherein the hydrophilic material is tartaric acid or an alkali metal tartrate.
Claim 12
Dependent Claim
16 words
A washing, rinsing or cleansing agent according to claim 6 wherein the hydrophilic material is pentaerythritol.
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) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |