Patent EP0342887A2 successfully refreshed from Google Patents.
EP0342887A2
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EP
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Soil release polymer compositions have improved processability
Assignee: Procter and Gamble Co
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Filing: 1989-05-15
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Granted: —
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Expires: 2009-05-15
Abstract
Abstract Polymeric soil release agents that have high viscosities when molten are difficult to process. Certain organic materials can be added to such agents to lower the viscosity and improve processing. Examples of such organic materials include fatty acids, some nonionic ethylene glycol derivatives, polyethylene or polypropylene glycols and their short alkyl chain ethers, certain polyhydroxy and alkyl ether solvents, and aryl ethers of propylene glycol.
Inventors
- 👤 Thomas Andrew Borcher, Sr.
- 👤 Rodolfo Delgado, (Nmn)
- 👤 Toan Trinh, (Nmn)
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 03:51
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/3715; C11D3/0005; C11D3/0036; C11D3/3707
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
210 words
A composition of matter comprising a mixture of: (A) a soil release polymer having a viscosity at 85 C of greater than 10,000 cps; and (B) a viscosity reducing agent selected from (1) fatty acids containing from 8 to 22 carbon atoms; (2) nonionic compounds having a hydrophobic group containing from 4 to 22 carbon atoms and at least one ethoxylate hydrophilic group containing from 1 to 100 ethylene oxide groups; (3) polyalkylene glycols or alkyl ethers thereof having molecular weights of less than 3,400; (4) solvents selected from: (a) polyhydroxl compounds containing from 2 to 4 hydroxyl groups and from 2 to 6 carbon atoms; (b) alkyl ethers of propylene glycol containing from one to two alkyl groups wherein each alkyl group contains from 4 to 6 carbon atoms; (c) dialkyl ethers of ethylene glycol wherein each alkyl group contains from 4 to 6 carbon atoms; and (d) mixtures thereof; (5) aryl and/or aralkyl ethers of propylene glycol wherein each of said aryl and aralkyl groups contains from 6 to 8 carbon atoms; and (6) mixtures thereof; said mixture of (A) and (8) having an A/B weight ratio of at least 1:1 and forming a phase stable mixture at 85 C with a viscosity of less than 10,000 cps.
Claim 2
Dependent Claim
210 words
A composition of matter comprising a mixture of: (A) a soil release polymer having a viscosity at 85 C of greater than 10,000 cps; and (B) a viscosity reducing agent selected from (1) fatty acids containing from 8 to 22 carbon atoms; (2) nonionic compounds having a hydrophobic group containing from 4 to 22 carbon atoms and at least one ethoxylate hydrophilic group containing from 1 to 100 ethylene oxide groups; (3) polyalkylene glycols or alkyl ethers thereof having molecular weights of less than 3,400; (4) solvents selected from: (a) polyhydroxl compounds containing from 2 to 4 hydroxyl groups and from 2 to 6 carbon atoms; (b) alkyl ethers of propylene glycol containing from one to two alkyl groups wherein each alkyl group contains from 4 to 6 carbon atoms; (c) dialkyl ethers of ethylene glycol wherein each alkyl group contains from 4 to 6 carbon atoms; and (d) mixtures thereof; (5) aryl and/or aralkyl ethers of propylene glycol wherein each of said aryl and aralkyl groups contains from 6 to 8 carbon atoms; and (6) mixtures thereof; said mixture of (A) and (8) having an A/B weight ratio of at least 1:1 and forming a phase stable mixture at 85 C with a viscosity of less than 10,000 cps.
Claim 3
Dependent Claim
29 words
A composition according to Claim 1 wherein said viscosity reducing agent (B) is fatty acid containing from 10 to 22 carbon atoms, preferably from 12 to 18 carbon atoms.
Claim 4
Dependent Claim
75 words
A composition according to Claim 1 wherein said viscosity reducing agent (B) is a nonionic compound having a hydrophobic group derived from a compound selected from: phenols, alkyl phenols, aralkyl alcohols, fatty alcohols, fatty acids, fatty esters, fatty amines, quaternary fatty ammonium salts, and mixtures thereof, wherein the fatty alkyl groups contain from 4 to 22 carbon atoms, said compounds having at least one polyethyoxylate hydrophilic group containing from 1.5 to 50 ethylene oxide groups.
Claim 5
Dependent Claim
50 words
A composition according to Claim 3 wherein said nonionic compound has a hydrophobic group derived from compounds selected from: fatty alcohols, fatty acids and alkyl phenols, wherein alkyl groups contain from 8 to 18 carbon atoms and wherein the polyethoxylate hydrophilic group contains from 1.5 to 20 ethylene oxide groups.
Claim 6
Dependent Claim
23 words
A composition according to Claim 1 wherein said viscosity reducing agent (B) comprises polyethylene glycol having a molecular weight of less than 3,400.
Claim 7
Dependent Claim
27 words
A composition according to Claim 1 wherein said viscosity reducing agent (B) comprises a methyl ether of polyethylene glycol having a molecular weight of less than 2,500.
Claim 8
Dependent Claim
21 words
A composition according to any one of Claims 1-6 wherein said soil release polymer (A) comprises an anionic soil release polymer.
Claim 9
Dependent Claim
21 words
A composition according to any one of Claims 1-6 wherein said soil release polymer (A) comprises a nonionic soil release polymer.
Claim 10
Dependent Claim
98 words
An article of manufacture adapted for use to provide fabric soil release benefits and to soften fabrics in an automatic laundry dryer comprising: I. a fabric conditionioning composition having a melting point above 35 C and being flowable at dryer operating temperatures, said composition comprising: i. from 1% to 70% of a composition according to any of Claims 1 to 8; and ii. from 30% to 99% of a fabric softening agent; and II. a dispensing means which provides for release of an effective amount of said composition to fabrics in the dryer at automatic dryer operating temperatures.
Claim 11
Dependent Claim
38 words
A process of preparing any of the articles of manufacture according to Claim 12 comprising the step wherein (A) and (B) are first admixed to form a premix which is then admixed with said fabric softening agent ii.
References Cited (Backward Citations)
No citation records indexed.
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