EP0099197A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Laundry additive products
Assignee: Procter and Gamble Ltd
•
Filing: 1983-06-23
•
Granted: —
•
Expires: 2003-06-23
Abstract
Abstract A laundry additive product comprising a solid laundry additive composition containing discrete agglomerated particles of storage sensitive detergency additive dispersed in a matrix of organic materials having a melting completion temperature of less than 85°C, the additive composition being in water-releasable combination with a unitary, water-insoluble carrier. A preferred storage-sensitive additive is a detergency enzyme. The compositions have improved storage-stability, dust control, reproducibility and convenience of use.
Inventors
- 👤 Stephen Paul Cassidy
- 👤 Maxim Courtney Brooks
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 17:31
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38609; C11D17/00; C11D17/04; C11D17/041; C11D3/39; C11D3/3942
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
53 words
A laundry additive product characterized by: (a) a solid laundry additive composition comprising discrete agglomerated particles of storage-sensitive detergency additive dispersed in a water-soluble or water-dispersible matrix of organic materials having a melting completion temperature of less than 85°C, the laundry additive composition being in water-releasable combination with (b) a unitary water-insoluble carrier.
Claim 2
Dependent Claim
53 words
A laundry additive product characterized by: (a) a solid laundry additive composition comprising discrete agglomerated particles of storage-sensitive detergency additive dispersed in a water-soluble or water-dispersible matrix of organic materials having a melting completion temperature of less than 85°C, the laundry additive composition being in water-releasable combination with (b) a unitary water-insoluble carrier.
Claim 3
Dependent Claim
36 words
A product according to Claim 1 characterized in that the, storage-sensitive detergency additive is selected from detergency enzymes, bleaches, bleach activators, bleach catalysts, photoactivators, dyes, fluorescers, suds suppressors, perfumes, fabric conditioning agents, and hydrolysable surfactants. ;
Claim 4
Dependent Claim
32 words
A product according to Claim 1 or 2 incorporating therein an antagonist for the storage-sensitive detergency additive, and wherein the detergency additive/antagonist combination are selected from at least one of the following:
Claim 5
Dependent Claim
27 words
A product according to any of Claims 1 to 3 characterized in that the storage-sensitive detergency additive is an enzyme selected from proteases, amylases and mixtures thereof.
Claim 6
Dependent Claim
38 words
A product according to any of Claims 1 to 4 characterized by a softening temperature of at least 35°C, a 15 second penetrometer hardness of less than 10, and comprising at least 40% of said organic matrix materials.
Claim 7
Dependent Claim
49 words
'6. A product according to any of Claims 1 to 5 characterized in that the agglomerated particles comprise an agglomerating agent and optionally a solid inorganic diluent, the agglomerating agent being in the form of a water-soluble or water-dispersible organic carrier, an adhesive, or an encapsulating or coating agent.
Claim 8
Dependent Claim
53 words
A product according to any of Claims 1 to 6 characterized in that the organic matrix comprises at least about 5%, preferably at least about 15% of water-soluble or water-dispersible organic binding agent having a melting onset temperature of at least about 35°C and a melting completion temperature of less than about 85°C.
Claim 9
Dependent Claim
68 words
A product according to Claim 7 characterized in that the binding agent is selected from polyethylene glycols of molecular weight greater than about 1000, C 12 -C 24 fatty acids and esters and amides thereof, polyvinyl pyrrolidone of molecular weight in the range from about 40,000 to about 700,000, and C 14 -C 24 fatty alcohols ethoxylated with from about 14 to about 100 moles of ethylene oxide.
Claim 10
Dependent Claim
34 words
9 . A product according to Claim 8 characterized in that the binding agent comprises at least.about 40%, preferably at least about 50% thereof of polyethyleneglycol having a molecular weight greater than about 4000.
Claim 11
Dependent Claim
40 words
A product according to any of Claims 1 to 9 characterized in that the additive composition is coated on or impregnated into a flexible, sheet-like substrate at a weight ratio of composition:substrate of at least 3:1, preferably at least 5:1.
Claim 12
Dependent Claim
48 words
A product according to any of Claims 1 to 9 characterized in that the additive composition is in the form of an aggregate of physically discrete solid bodies having the agglomerated particles of storage-sensitive detergency additive dispersed therein, the aggregate being incorporated in a water-permeable or water-frangible pouch.
Claim 13
Dependent Claim
59 words
A product according to any of Claims 1 to 11 characterized in that the particles of storage-sensitive detergency additive have an average particle size of less than about 150 microns, preferably less than about 100 microns, and than the agglomerates have an average particle size of at least about 100 microns, preferably from about 150 to about 2000 microns.
Claim 14
Dependent Claim
32 words
A product according to any of Claims 1 to 12 characterized by at least 5%, preferably at least 20% of organic detergent selected from anionic, nonionic and cationic surfactants and mixtures thereof.
Claim 15
Dependent Claim
37 words
A product according to Claim 13 characterized in that the organic detergent is selected from anionic sulphonate or sulphate surfactants and/or water-soluble cationic surfactants and mixtures of said anionic or cationic surfactants with water-soluble ethoxylated nonionic surfactants.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.