US3773674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent composition containing enzymes
Assignee: Procter and Gamble Co
•
Filing: 1971-02-25
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Granted: 1973-11-20
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Expires: 1991-02-25
Abstract
Abstract A granular detergent composition containing (a) an organic detergent, (b) an alkaline builder, (c) glucose polymers with an Alpha -1,4 main linkage, (d) a compound of the general formula R1 -(CHOH)n-Y, wherein Y represents a salt or an ester radical derived from a carboxylic radical, n is 3 or 4, and R1 is CH2OH or CHO, and (e) an Alpha -amylase. The glucose polymers and the compound of the general formula R1(CHOH)n-Y protects the Alpha amylase against denaturation and degradation.
Inventors
- 👤 W Adam
- 👤 C Barrat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:11
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/38; C11D3/386; C11D3/38672
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
27 words
The granular detergent composition of claim 1 wherein the proportion of said detergent to said builder is in the range of from about 5:1 to about 1:20.
Claim 2
Dependent Claim
31 words
The granular detergent composition of claim 1 wherein dextrin is used as the glucose polymer and whereby the weight ratio of dextrin to pure Alpha -amylase is from 8:1 to 500:1.
Claim 3
Dependent Claim
24 words
The granular detergent composition of claim 1 wherein the monosaccharide derivative compound is an alkali metal or alkaline earth metal salt of gluconic acid.
Claim 4
Dependent Claim
33 words
The granular detergent composition of claim 4 wherein the salt of gluconic acid is a divalent salt and whereby the weight ratio of salt to glucose polymer is from about 1:1 to 1:10.
Claim 5
Dependent Claim
17 words
The granular detergent composition of claim 5 wherein the divalent salt of gluconic acid is calcium gluconate.
Claim 6
Dependent Claim
22 words
The granular detergent composition of claim 1 wherein from 0.001 percent to 0.010 percent by weight of pure Alpha -amylases are used.
Claim 7
Dependent Claim
23 words
The granular detergent composition of claim 14 wherein from 0 percent to about 5 percent by weight of partially hydrolyzed collagen is used.
Claim 8
Dependent Claim
17 words
The granular detergent composition of claim 1 wherein sodium tripolyphosphate is used as the alkaline builder material.
Claim 9
Dependent Claim
38 words
The granular detergent composition of claim 1 further comprising from 0 percent to about 50 percent of a peroxy-bleach compound selected from the group consisting of alkali metal perborates, percarbonates and monopersulfates, hydrogen peroxide and alkali metal peroxides.
Claim 10
Dependent Claim
14 words
The granular detergent composition of claim 10 wherein the peroxybleach compound is a perborate.
Claim 11
Dependent Claim
17 words
The granular detergent composition of claim 1 further comprising from 0 to 5 percent of proteolytic enzymes.
Claim 12
Dependent Claim
18 words
The granular detergent composition of claim 12 wherein up to 2 percent of a proteolytic enzyme is used.
Claim 13
Dependent Claim
20 words
The granular detergent composition of claim 12 wherein the proteolytic enzymes used do not contain disulfide links or sulfhydryl groups.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |